./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/Problem05_label43+token_ring.03.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085c58ba-33eb-498c-8d68-d157eda791df/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085c58ba-33eb-498c-8d68-d157eda791df/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085c58ba-33eb-498c-8d68-d157eda791df/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085c58ba-33eb-498c-8d68-d157eda791df/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/Problem05_label43+token_ring.03.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085c58ba-33eb-498c-8d68-d157eda791df/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085c58ba-33eb-498c-8d68-d157eda791df/bin/uautomizer-verify-uCwYo4JHxu --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 d5e8784cabcb38b73600d610d5b7e0bbbbf790f527b046ae80f9a34c4ea82403 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:33:09,237 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:33:09,365 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085c58ba-33eb-498c-8d68-d157eda791df/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-19 07:33:09,376 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:33:09,377 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:33:09,422 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:33:09,423 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:33:09,423 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:33:09,425 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:33:09,430 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:33:09,432 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:33:09,432 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:33:09,433 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:33:09,435 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:33:09,435 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:33:09,436 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:33:09,436 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:33:09,437 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:33:09,437 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:33:09,438 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:33:09,438 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:33:09,439 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:33:09,439 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:33:09,440 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:33:09,440 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:33:09,441 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:33:09,442 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:33:09,442 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:33:09,443 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:33:09,443 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:33:09,445 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:33:09,445 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:33:09,445 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:33:09,446 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:33:09,446 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:33:09,446 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:33:09,447 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:33:09,447 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:33:09,447 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:33:09,447 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085c58ba-33eb-498c-8d68-d157eda791df/bin/uautomizer-verify-uCwYo4JHxu/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085c58ba-33eb-498c-8d68-d157eda791df/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d5e8784cabcb38b73600d610d5b7e0bbbbf790f527b046ae80f9a34c4ea82403 [2023-11-19 07:33:09,760 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:33:09,795 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:33:09,801 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:33:09,803 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:33:09,803 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:33:09,805 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085c58ba-33eb-498c-8d68-d157eda791df/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/combinations/Problem05_label43+token_ring.03.cil-1.c [2023-11-19 07:33:13,074 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:33:14,080 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:33:14,081 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085c58ba-33eb-498c-8d68-d157eda791df/sv-benchmarks/c/combinations/Problem05_label43+token_ring.03.cil-1.c [2023-11-19 07:33:14,146 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085c58ba-33eb-498c-8d68-d157eda791df/bin/uautomizer-verify-uCwYo4JHxu/data/45a5abaff/6b3291227db04b50a3460bc47a4a2515/FLAG5a10db570 [2023-11-19 07:33:14,165 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085c58ba-33eb-498c-8d68-d157eda791df/bin/uautomizer-verify-uCwYo4JHxu/data/45a5abaff/6b3291227db04b50a3460bc47a4a2515 [2023-11-19 07:33:14,172 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:33:14,174 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:33:14,178 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:33:14,178 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:33:14,184 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:33:14,185 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:33:14" (1/1) ... [2023-11-19 07:33:14,186 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74f1b77f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:14, skipping insertion in model container [2023-11-19 07:33:14,186 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:33:14" (1/1) ... [2023-11-19 07:33:14,436 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:33:16,884 WARN L240 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_085c58ba-33eb-498c-8d68-d157eda791df/sv-benchmarks/c/combinations/Problem05_label43+token_ring.03.cil-1.c[381679,381692] [2023-11-19 07:33:16,910 WARN L240 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_085c58ba-33eb-498c-8d68-d157eda791df/sv-benchmarks/c/combinations/Problem05_label43+token_ring.03.cil-1.c[383339,383352] [2023-11-19 07:33:17,134 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:33:17,147 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:33:18,443 WARN L240 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_085c58ba-33eb-498c-8d68-d157eda791df/sv-benchmarks/c/combinations/Problem05_label43+token_ring.03.cil-1.c[381679,381692] [2023-11-19 07:33:18,447 WARN L240 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_085c58ba-33eb-498c-8d68-d157eda791df/sv-benchmarks/c/combinations/Problem05_label43+token_ring.03.cil-1.c[383339,383352] [2023-11-19 07:33:18,463 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:33:18,529 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:33:18,529 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:18 WrapperNode [2023-11-19 07:33:18,530 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:33:18,531 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:33:18,531 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:33:18,531 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:33:18,538 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:18" (1/1) ... [2023-11-19 07:33:18,648 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:18" (1/1) ... [2023-11-19 07:33:19,205 INFO L138 Inliner]: procedures = 50, calls = 51, calls flagged for inlining = 27, calls inlined = 27, statements flattened = 12694 [2023-11-19 07:33:19,206 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:33:19,208 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:33:19,209 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:33:19,209 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:33:19,236 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:18" (1/1) ... [2023-11-19 07:33:19,237 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:18" (1/1) ... [2023-11-19 07:33:19,340 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:18" (1/1) ... [2023-11-19 07:33:19,340 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:18" (1/1) ... [2023-11-19 07:33:19,665 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:18" (1/1) ... [2023-11-19 07:33:19,746 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:18" (1/1) ... [2023-11-19 07:33:19,769 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:18" (1/1) ... [2023-11-19 07:33:19,793 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:18" (1/1) ... [2023-11-19 07:33:20,037 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:33:20,041 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:33:20,042 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:33:20,042 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:33:20,043 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:18" (1/1) ... [2023-11-19 07:33:20,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:33:20,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085c58ba-33eb-498c-8d68-d157eda791df/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:33:20,104 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085c58ba-33eb-498c-8d68-d157eda791df/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:33:20,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085c58ba-33eb-498c-8d68-d157eda791df/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:33:20,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:33:20,162 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2023-11-19 07:33:20,163 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2023-11-19 07:33:20,163 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-11-19 07:33:20,163 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-11-19 07:33:20,163 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2023-11-19 07:33:20,163 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2023-11-19 07:33:20,164 INFO L130 BoogieDeclarations]: Found specification of procedure error [2023-11-19 07:33:20,164 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2023-11-19 07:33:20,166 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2023-11-19 07:33:20,166 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2023-11-19 07:33:20,167 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2023-11-19 07:33:20,167 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2023-11-19 07:33:20,167 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2023-11-19 07:33:20,167 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2023-11-19 07:33:20,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:33:20,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:33:20,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:33:20,406 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:33:20,408 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:33:31,180 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:33:31,215 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:33:31,216 INFO L302 CfgBuilder]: Removed 7 assume(true) statements. [2023-11-19 07:33:31,230 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:33:31 BoogieIcfgContainer [2023-11-19 07:33:31,230 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:33:31,233 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:33:31,233 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:33:31,236 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:33:31,237 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:33:14" (1/3) ... [2023-11-19 07:33:31,238 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d2b28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:33:31, skipping insertion in model container [2023-11-19 07:33:31,238 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:18" (2/3) ... [2023-11-19 07:33:31,238 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d2b28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:33:31, skipping insertion in model container [2023-11-19 07:33:31,238 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:33:31" (3/3) ... [2023-11-19 07:33:31,240 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label43+token_ring.03.cil-1.c [2023-11-19 07:33:31,260 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:33:31,260 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-19 07:33:31,357 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:33:31,365 INFO L357 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, mHoare=true, 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;@5369585f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:33:31,365 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-19 07:33:31,380 INFO L276 IsEmpty]: Start isEmpty. Operand has 2352 states, 2323 states have (on average 1.8544984933275936) internal successors, (4308), 2328 states have internal predecessors, (4308), 19 states have call successors, (19), 7 states have call predecessors, (19), 7 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-19 07:33:31,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-19 07:33:31,406 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:33:31,407 INFO L195 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] [2023-11-19 07:33:31,408 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:33:31,416 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:33:31,416 INFO L85 PathProgramCache]: Analyzing trace with hash -1300199463, now seen corresponding path program 1 times [2023-11-19 07:33:31,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:33:31,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136565046] [2023-11-19 07:33:31,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:33:31,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:33:31,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:31,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-19 07:33:31,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:31,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-19 07:33:31,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:32,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-19 07:33:32,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:32,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-19 07:33:32,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:32,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-19 07:33:32,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:32,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:33:32,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:33:32,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136565046] [2023-11-19 07:33:32,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136565046] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:33:32,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:33:32,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 07:33:32,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994449448] [2023-11-19 07:33:32,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:33:32,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:33:32,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:33:32,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:33:32,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:33:32,155 INFO L87 Difference]: Start difference. First operand has 2352 states, 2323 states have (on average 1.8544984933275936) internal successors, (4308), 2328 states have internal predecessors, (4308), 19 states have call successors, (19), 7 states have call predecessors, (19), 7 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-19 07:33:33,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:33:33,775 INFO L93 Difference]: Finished difference Result 4933 states and 9066 transitions. [2023-11-19 07:33:33,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-19 07:33:33,782 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 80 [2023-11-19 07:33:33,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:33:33,813 INFO L225 Difference]: With dead ends: 4933 [2023-11-19 07:33:33,813 INFO L226 Difference]: Without dead ends: 2522 [2023-11-19 07:33:33,822 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2023-11-19 07:33:33,826 INFO L413 NwaCegarLoop]: 4177 mSDtfsCounter, 4571 mSDsluCounter, 12522 mSDsCounter, 0 mSdLazyCounter, 759 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4581 SdHoareTripleChecker+Valid, 16699 SdHoareTripleChecker+Invalid, 839 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-19 07:33:33,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4581 Valid, 16699 Invalid, 839 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [80 Valid, 759 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-19 07:33:33,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2522 states. [2023-11-19 07:33:33,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2522 to 2435. [2023-11-19 07:33:33,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2435 states, 2389 states have (on average 1.8271243197990792) internal successors, (4365), 2393 states have internal predecessors, (4365), 31 states have call successors, (31), 13 states have call predecessors, (31), 13 states have return successors, (32), 29 states have call predecessors, (32), 29 states have call successors, (32) [2023-11-19 07:33:33,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2435 states to 2435 states and 4428 transitions. [2023-11-19 07:33:33,987 INFO L78 Accepts]: Start accepts. Automaton has 2435 states and 4428 transitions. Word has length 80 [2023-11-19 07:33:33,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:33:33,988 INFO L495 AbstractCegarLoop]: Abstraction has 2435 states and 4428 transitions. [2023-11-19 07:33:33,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-19 07:33:33,989 INFO L276 IsEmpty]: Start isEmpty. Operand 2435 states and 4428 transitions. [2023-11-19 07:33:33,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-19 07:33:33,994 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:33:33,994 INFO L195 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] [2023-11-19 07:33:33,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:33:33,995 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:33:33,996 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:33:33,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1753327317, now seen corresponding path program 1 times [2023-11-19 07:33:33,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:33:33,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275605312] [2023-11-19 07:33:33,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:33:33,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:33:34,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:34,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-19 07:33:34,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:34,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-19 07:33:34,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:34,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-19 07:33:34,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:34,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-19 07:33:34,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:34,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-19 07:33:34,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:34,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:33:34,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:33:34,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275605312] [2023-11-19 07:33:34,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275605312] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:33:34,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:33:34,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 07:33:34,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535756179] [2023-11-19 07:33:34,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:33:34,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:33:34,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:33:34,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:33:34,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:33:34,337 INFO L87 Difference]: Start difference. First operand 2435 states and 4428 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-19 07:33:36,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:33:36,154 INFO L93 Difference]: Finished difference Result 3020 states and 5320 transitions. [2023-11-19 07:33:36,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-19 07:33:36,156 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 80 [2023-11-19 07:33:36,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:33:36,178 INFO L225 Difference]: With dead ends: 3020 [2023-11-19 07:33:36,179 INFO L226 Difference]: Without dead ends: 2717 [2023-11-19 07:33:36,182 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-11-19 07:33:36,184 INFO L413 NwaCegarLoop]: 4216 mSDtfsCounter, 4499 mSDsluCounter, 16674 mSDsCounter, 0 mSdLazyCounter, 1239 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4509 SdHoareTripleChecker+Valid, 20890 SdHoareTripleChecker+Invalid, 1286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 1239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:33:36,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4509 Valid, 20890 Invalid, 1286 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [47 Valid, 1239 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-19 07:33:36,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2717 states. [2023-11-19 07:33:36,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2717 to 2577. [2023-11-19 07:33:36,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2577 states, 2512 states have (on average 1.8105095541401275) internal successors, (4548), 2517 states have internal predecessors, (4548), 43 states have call successors, (43), 19 states have call predecessors, (43), 20 states have return successors, (46), 42 states have call predecessors, (46), 41 states have call successors, (46) [2023-11-19 07:33:36,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2577 states to 2577 states and 4637 transitions. [2023-11-19 07:33:36,303 INFO L78 Accepts]: Start accepts. Automaton has 2577 states and 4637 transitions. Word has length 80 [2023-11-19 07:33:36,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:33:36,303 INFO L495 AbstractCegarLoop]: Abstraction has 2577 states and 4637 transitions. [2023-11-19 07:33:36,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-19 07:33:36,304 INFO L276 IsEmpty]: Start isEmpty. Operand 2577 states and 4637 transitions. [2023-11-19 07:33:36,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-19 07:33:36,307 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:33:36,308 INFO L195 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] [2023-11-19 07:33:36,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:33:36,309 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:33:36,309 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:33:36,310 INFO L85 PathProgramCache]: Analyzing trace with hash 67147479, now seen corresponding path program 1 times [2023-11-19 07:33:36,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:33:36,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844274907] [2023-11-19 07:33:36,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:33:36,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:33:36,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:36,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-19 07:33:36,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:36,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-19 07:33:36,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:36,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-19 07:33:36,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:36,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-19 07:33:36,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:36,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-19 07:33:36,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:36,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:33:36,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:33:36,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844274907] [2023-11-19 07:33:36,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844274907] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:33:36,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:33:36,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 07:33:36,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421804362] [2023-11-19 07:33:36,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:33:36,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:33:36,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:33:36,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:33:36,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:33:36,681 INFO L87 Difference]: Start difference. First operand 2577 states and 4637 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-19 07:33:38,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:33:38,284 INFO L93 Difference]: Finished difference Result 3529 states and 6085 transitions. [2023-11-19 07:33:38,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-19 07:33:38,289 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 80 [2023-11-19 07:33:38,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:33:38,311 INFO L225 Difference]: With dead ends: 3529 [2023-11-19 07:33:38,311 INFO L226 Difference]: Without dead ends: 3084 [2023-11-19 07:33:38,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-11-19 07:33:38,316 INFO L413 NwaCegarLoop]: 4214 mSDtfsCounter, 4497 mSDsluCounter, 16674 mSDsCounter, 0 mSdLazyCounter, 1235 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4507 SdHoareTripleChecker+Valid, 20888 SdHoareTripleChecker+Invalid, 1284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:33:38,317 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4507 Valid, 20888 Invalid, 1284 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [49 Valid, 1235 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-19 07:33:38,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3084 states. [2023-11-19 07:33:38,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3084 to 2862. [2023-11-19 07:33:38,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2862 states, 2759 states have (on average 1.7814425516491483) internal successors, (4915), 2766 states have internal predecessors, (4915), 67 states have call successors, (67), 31 states have call predecessors, (67), 34 states have return successors, (78), 68 states have call predecessors, (78), 65 states have call successors, (78) [2023-11-19 07:33:38,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2862 states to 2862 states and 5060 transitions. [2023-11-19 07:33:38,439 INFO L78 Accepts]: Start accepts. Automaton has 2862 states and 5060 transitions. Word has length 80 [2023-11-19 07:33:38,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:33:38,439 INFO L495 AbstractCegarLoop]: Abstraction has 2862 states and 5060 transitions. [2023-11-19 07:33:38,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-19 07:33:38,440 INFO L276 IsEmpty]: Start isEmpty. Operand 2862 states and 5060 transitions. [2023-11-19 07:33:38,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-19 07:33:38,442 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:33:38,442 INFO L195 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] [2023-11-19 07:33:38,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:33:38,443 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:33:38,443 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:33:38,444 INFO L85 PathProgramCache]: Analyzing trace with hash 12754581, now seen corresponding path program 1 times [2023-11-19 07:33:38,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:33:38,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598518412] [2023-11-19 07:33:38,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:33:38,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:33:38,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:38,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-19 07:33:38,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:38,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-19 07:33:38,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:38,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-19 07:33:38,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:38,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-19 07:33:38,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:38,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-19 07:33:38,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:38,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:33:38,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:33:38,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598518412] [2023-11-19 07:33:38,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598518412] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:33:38,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:33:38,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 07:33:38,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894531906] [2023-11-19 07:33:38,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:33:38,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:33:38,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:33:38,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:33:38,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:33:38,701 INFO L87 Difference]: Start difference. First operand 2862 states and 5060 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-19 07:33:40,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:33:40,270 INFO L93 Difference]: Finished difference Result 4514 states and 7564 transitions. [2023-11-19 07:33:40,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-19 07:33:40,271 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 80 [2023-11-19 07:33:40,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:33:40,297 INFO L225 Difference]: With dead ends: 4514 [2023-11-19 07:33:40,297 INFO L226 Difference]: Without dead ends: 3784 [2023-11-19 07:33:40,301 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-11-19 07:33:40,302 INFO L413 NwaCegarLoop]: 4214 mSDtfsCounter, 4493 mSDsluCounter, 16674 mSDsCounter, 0 mSdLazyCounter, 1226 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4503 SdHoareTripleChecker+Valid, 20888 SdHoareTripleChecker+Invalid, 1275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:33:40,303 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4503 Valid, 20888 Invalid, 1275 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [49 Valid, 1226 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-19 07:33:40,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3784 states. [2023-11-19 07:33:40,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3784 to 3433. [2023-11-19 07:33:40,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3433 states, 3254 states have (on average 1.7360172095881992) internal successors, (5649), 3265 states have internal predecessors, (5649), 115 states have call successors, (115), 55 states have call predecessors, (115), 62 states have return successors, (148), 120 states have call predecessors, (148), 113 states have call successors, (148) [2023-11-19 07:33:40,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3433 states to 3433 states and 5912 transitions. [2023-11-19 07:33:40,459 INFO L78 Accepts]: Start accepts. Automaton has 3433 states and 5912 transitions. Word has length 80 [2023-11-19 07:33:40,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:33:40,460 INFO L495 AbstractCegarLoop]: Abstraction has 3433 states and 5912 transitions. [2023-11-19 07:33:40,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-19 07:33:40,461 INFO L276 IsEmpty]: Start isEmpty. Operand 3433 states and 5912 transitions. [2023-11-19 07:33:40,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-19 07:33:40,463 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:33:40,464 INFO L195 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] [2023-11-19 07:33:40,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:33:40,464 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:33:40,465 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:33:40,465 INFO L85 PathProgramCache]: Analyzing trace with hash -404642025, now seen corresponding path program 1 times [2023-11-19 07:33:40,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:33:40,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291037113] [2023-11-19 07:33:40,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:33:40,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:33:40,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:40,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-19 07:33:40,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:40,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-19 07:33:40,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:40,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-19 07:33:40,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:40,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-19 07:33:40,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:40,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-19 07:33:40,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:40,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:33:40,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:33:40,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291037113] [2023-11-19 07:33:40,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291037113] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:33:40,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:33:40,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 07:33:40,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637062870] [2023-11-19 07:33:40,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:33:40,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:33:40,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:33:40,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:33:40,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:33:40,631 INFO L87 Difference]: Start difference. First operand 3433 states and 5912 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-19 07:33:42,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:33:42,316 INFO L93 Difference]: Finished difference Result 6891 states and 11132 transitions. [2023-11-19 07:33:42,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-19 07:33:42,316 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 80 [2023-11-19 07:33:42,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:33:42,355 INFO L225 Difference]: With dead ends: 6891 [2023-11-19 07:33:42,356 INFO L226 Difference]: Without dead ends: 5590 [2023-11-19 07:33:42,362 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-11-19 07:33:42,366 INFO L413 NwaCegarLoop]: 4212 mSDtfsCounter, 4624 mSDsluCounter, 16666 mSDsCounter, 0 mSdLazyCounter, 1210 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4638 SdHoareTripleChecker+Valid, 20878 SdHoareTripleChecker+Invalid, 1262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 1210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:33:42,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4638 Valid, 20878 Invalid, 1262 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [52 Valid, 1210 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-19 07:33:42,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5590 states. [2023-11-19 07:33:42,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5590 to 4556. [2023-11-19 07:33:42,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4556 states, 4233 states have (on average 1.6789510985116938) internal successors, (7107), 4252 states have internal predecessors, (7107), 203 states have call successors, (203), 103 states have call predecessors, (203), 118 states have return successors, (298), 216 states have call predecessors, (298), 201 states have call successors, (298) [2023-11-19 07:33:42,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4556 states to 4556 states and 7608 transitions. [2023-11-19 07:33:42,630 INFO L78 Accepts]: Start accepts. Automaton has 4556 states and 7608 transitions. Word has length 80 [2023-11-19 07:33:42,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:33:42,631 INFO L495 AbstractCegarLoop]: Abstraction has 4556 states and 7608 transitions. [2023-11-19 07:33:42,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-19 07:33:42,631 INFO L276 IsEmpty]: Start isEmpty. Operand 4556 states and 7608 transitions. [2023-11-19 07:33:42,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-19 07:33:42,640 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:33:42,640 INFO L195 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] [2023-11-19 07:33:42,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 07:33:42,641 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:33:42,641 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:33:42,642 INFO L85 PathProgramCache]: Analyzing trace with hash 274630229, now seen corresponding path program 1 times [2023-11-19 07:33:42,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:33:42,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131671679] [2023-11-19 07:33:42,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:33:42,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:33:42,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:42,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-19 07:33:42,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:42,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-19 07:33:42,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:42,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-19 07:33:42,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:42,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-19 07:33:42,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:42,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-19 07:33:42,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:42,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:33:42,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:33:42,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131671679] [2023-11-19 07:33:42,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131671679] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:33:42,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:33:42,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 07:33:42,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959929133] [2023-11-19 07:33:42,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:33:42,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:33:42,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:33:42,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:33:42,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:33:42,849 INFO L87 Difference]: Start difference. First operand 4556 states and 7608 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-19 07:33:44,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:33:44,866 INFO L93 Difference]: Finished difference Result 10972 states and 17330 transitions. [2023-11-19 07:33:44,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-19 07:33:44,876 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 80 [2023-11-19 07:33:44,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:33:44,968 INFO L225 Difference]: With dead ends: 10972 [2023-11-19 07:33:44,968 INFO L226 Difference]: Without dead ends: 8548 [2023-11-19 07:33:44,982 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-11-19 07:33:44,991 INFO L413 NwaCegarLoop]: 4211 mSDtfsCounter, 4513 mSDsluCounter, 16663 mSDsCounter, 0 mSdLazyCounter, 1383 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4522 SdHoareTripleChecker+Valid, 20874 SdHoareTripleChecker+Invalid, 1434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-19 07:33:44,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4522 Valid, 20874 Invalid, 1434 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [51 Valid, 1383 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-19 07:33:45,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8548 states. [2023-11-19 07:33:45,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8548 to 6631. [2023-11-19 07:33:45,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6631 states, 6028 states have (on average 1.6152952886529528) internal successors, (9737), 6063 states have internal predecessors, (9737), 371 states have call successors, (371), 199 states have call predecessors, (371), 230 states have return successors, (644), 400 states have call predecessors, (644), 369 states have call successors, (644) [2023-11-19 07:33:45,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6631 states to 6631 states and 10752 transitions. [2023-11-19 07:33:45,516 INFO L78 Accepts]: Start accepts. Automaton has 6631 states and 10752 transitions. Word has length 80 [2023-11-19 07:33:45,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:33:45,517 INFO L495 AbstractCegarLoop]: Abstraction has 6631 states and 10752 transitions. [2023-11-19 07:33:45,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-19 07:33:45,518 INFO L276 IsEmpty]: Start isEmpty. Operand 6631 states and 10752 transitions. [2023-11-19 07:33:45,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-19 07:33:45,527 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:33:45,527 INFO L195 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] [2023-11-19 07:33:45,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 07:33:45,528 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:33:45,528 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:33:45,529 INFO L85 PathProgramCache]: Analyzing trace with hash -2058762409, now seen corresponding path program 1 times [2023-11-19 07:33:45,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:33:45,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051215126] [2023-11-19 07:33:45,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:33:45,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:33:45,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:45,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-19 07:33:45,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:45,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-19 07:33:45,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:45,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-19 07:33:45,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:45,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-19 07:33:45,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:45,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-19 07:33:45,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:45,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:33:45,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:33:45,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051215126] [2023-11-19 07:33:45,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051215126] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:33:45,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:33:45,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 07:33:45,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700087168] [2023-11-19 07:33:45,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:33:45,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:33:45,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:33:45,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:33:45,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:33:45,744 INFO L87 Difference]: Start difference. First operand 6631 states and 10752 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-19 07:33:47,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:33:47,726 INFO L93 Difference]: Finished difference Result 17878 states and 27888 transitions. [2023-11-19 07:33:47,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-19 07:33:47,727 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 80 [2023-11-19 07:33:47,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:33:47,784 INFO L225 Difference]: With dead ends: 17878 [2023-11-19 07:33:47,784 INFO L226 Difference]: Without dead ends: 13379 [2023-11-19 07:33:47,801 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-11-19 07:33:47,802 INFO L413 NwaCegarLoop]: 4212 mSDtfsCounter, 4502 mSDsluCounter, 16666 mSDsCounter, 0 mSdLazyCounter, 1166 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4516 SdHoareTripleChecker+Valid, 20878 SdHoareTripleChecker+Invalid, 1219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:33:47,804 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4516 Valid, 20878 Invalid, 1219 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [53 Valid, 1166 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-19 07:33:47,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13379 states. [2023-11-19 07:33:48,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13379 to 10955. [2023-11-19 07:33:48,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10955 states, 9808 states have (on average 1.5661704730831973) internal successors, (15361), 9875 states have internal predecessors, (15361), 691 states have call successors, (691), 391 states have call predecessors, (691), 454 states have return successors, (1482), 752 states have call predecessors, (1482), 689 states have call successors, (1482) [2023-11-19 07:33:48,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10955 states to 10955 states and 17534 transitions. [2023-11-19 07:33:48,394 INFO L78 Accepts]: Start accepts. Automaton has 10955 states and 17534 transitions. Word has length 80 [2023-11-19 07:33:48,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:33:48,398 INFO L495 AbstractCegarLoop]: Abstraction has 10955 states and 17534 transitions. [2023-11-19 07:33:48,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-19 07:33:48,400 INFO L276 IsEmpty]: Start isEmpty. Operand 10955 states and 17534 transitions. [2023-11-19 07:33:48,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-19 07:33:48,412 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:33:48,412 INFO L195 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] [2023-11-19 07:33:48,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 07:33:48,413 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:33:48,413 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:33:48,413 INFO L85 PathProgramCache]: Analyzing trace with hash -1498062631, now seen corresponding path program 1 times [2023-11-19 07:33:48,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:33:48,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410004698] [2023-11-19 07:33:48,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:33:48,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:33:48,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:48,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-19 07:33:48,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:48,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-19 07:33:48,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:48,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-19 07:33:48,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:48,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-19 07:33:48,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:48,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-19 07:33:48,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:48,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:33:48,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:33:48,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410004698] [2023-11-19 07:33:48,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410004698] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:33:48,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:33:48,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 07:33:48,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158990334] [2023-11-19 07:33:48,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:33:48,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:33:48,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:33:48,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:33:48,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:33:48,558 INFO L87 Difference]: Start difference. First operand 10955 states and 17534 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-19 07:33:50,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:33:50,425 INFO L93 Difference]: Finished difference Result 26965 states and 42014 transitions. [2023-11-19 07:33:50,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-19 07:33:50,425 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 80 [2023-11-19 07:33:50,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:33:50,492 INFO L225 Difference]: With dead ends: 26965 [2023-11-19 07:33:50,492 INFO L226 Difference]: Without dead ends: 18143 [2023-11-19 07:33:50,536 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-11-19 07:33:50,538 INFO L413 NwaCegarLoop]: 4233 mSDtfsCounter, 4670 mSDsluCounter, 12379 mSDsCounter, 0 mSdLazyCounter, 1013 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4697 SdHoareTripleChecker+Valid, 16612 SdHoareTripleChecker+Invalid, 1088 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 1013 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:33:50,538 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4697 Valid, 16612 Invalid, 1088 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [75 Valid, 1013 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-19 07:33:50,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18143 states. [2023-11-19 07:33:51,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18143 to 15280. [2023-11-19 07:33:51,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15280 states, 13538 states have (on average 1.528512335647806) internal successors, (20693), 13670 states have internal predecessors, (20693), 1056 states have call successors, (1056), 589 states have call predecessors, (1056), 684 states have return successors, (2091), 1084 states have call predecessors, (2091), 1054 states have call successors, (2091) [2023-11-19 07:33:51,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15280 states to 15280 states and 23840 transitions. [2023-11-19 07:33:51,478 INFO L78 Accepts]: Start accepts. Automaton has 15280 states and 23840 transitions. Word has length 80 [2023-11-19 07:33:51,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:33:51,479 INFO L495 AbstractCegarLoop]: Abstraction has 15280 states and 23840 transitions. [2023-11-19 07:33:51,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-19 07:33:51,479 INFO L276 IsEmpty]: Start isEmpty. Operand 15280 states and 23840 transitions. [2023-11-19 07:33:51,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-11-19 07:33:51,530 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:33:51,530 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:33:51,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-19 07:33:51,531 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:33:51,531 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:33:51,531 INFO L85 PathProgramCache]: Analyzing trace with hash 2122320658, now seen corresponding path program 1 times [2023-11-19 07:33:51,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:33:51,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711615823] [2023-11-19 07:33:51,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:33:51,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:33:51,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:51,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-19 07:33:51,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:51,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-19 07:33:51,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:51,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-19 07:33:51,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:51,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-19 07:33:51,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:51,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-19 07:33:51,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:51,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-19 07:33:51,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:51,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-19 07:33:51,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:51,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-19 07:33:51,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:51,733 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-19 07:33:51,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:33:51,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711615823] [2023-11-19 07:33:51,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711615823] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:33:51,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1455688398] [2023-11-19 07:33:51,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:33:51,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:33:51,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085c58ba-33eb-498c-8d68-d157eda791df/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:33:51,740 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085c58ba-33eb-498c-8d68-d157eda791df/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:33:51,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_085c58ba-33eb-498c-8d68-d157eda791df/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 07:33:51,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:51,898 INFO L262 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:33:51,911 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:33:52,021 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-19 07:33:52,022 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:33:52,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1455688398] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:33:52,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:33:52,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2023-11-19 07:33:52,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235141718] [2023-11-19 07:33:52,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:33:52,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:33:52,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:33:52,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:33:52,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:33:52,025 INFO L87 Difference]: Start difference. First operand 15280 states and 23840 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 2 states have internal predecessors, (93), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-19 07:33:53,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:33:53,238 INFO L93 Difference]: Finished difference Result 41227 states and 63420 transitions. [2023-11-19 07:33:53,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:33:53,239 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 2 states have internal predecessors, (93), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 130 [2023-11-19 07:33:53,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:33:53,362 INFO L225 Difference]: With dead ends: 41227 [2023-11-19 07:33:53,362 INFO L226 Difference]: Without dead ends: 28080 [2023-11-19 07:33:53,421 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:33:53,423 INFO L413 NwaCegarLoop]: 4196 mSDtfsCounter, 4152 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4152 SdHoareTripleChecker+Valid, 4410 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:33:53,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4152 Valid, 4410 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:33:53,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28080 states.