./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem11_label56.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc58c43-641f-4985-80a0-02e4e2bcdb19/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc58c43-641f-4985-80a0-02e4e2bcdb19/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc58c43-641f-4985-80a0-02e4e2bcdb19/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc58c43-641f-4985-80a0-02e4e2bcdb19/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem11_label56.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc58c43-641f-4985-80a0-02e4e2bcdb19/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc58c43-641f-4985-80a0-02e4e2bcdb19/bin/uautomizer-verify-BQ2R08f2Ya --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 77c0c06cf345be89a7bfdea692ab0197740d9f5ad98baaf39e02029ee2fea03a --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 00:13:47,316 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 00:13:47,396 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc58c43-641f-4985-80a0-02e4e2bcdb19/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-29 00:13:47,400 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 00:13:47,401 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 00:13:47,426 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 00:13:47,427 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 00:13:47,428 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 00:13:47,428 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 00:13:47,429 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 00:13:47,429 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 00:13:47,430 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 00:13:47,431 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 00:13:47,431 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 00:13:47,432 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 00:13:47,432 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 00:13:47,433 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 00:13:47,433 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 00:13:47,434 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 00:13:47,434 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 00:13:47,435 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 00:13:47,435 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 00:13:47,436 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 00:13:47,436 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 00:13:47,437 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 00:13:47,437 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 00:13:47,438 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 00:13:47,438 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 00:13:47,439 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 00:13:47,439 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 00:13:47,439 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 00:13:47,440 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 00:13:47,440 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 00:13:47,440 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 00:13:47,441 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 00:13:47,441 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 00:13:47,441 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 00:13:47,441 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 00:13:47,441 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 00:13:47,442 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 00:13:47,442 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 00:13:47,442 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 00:13:47,442 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_3cc58c43-641f-4985-80a0-02e4e2bcdb19/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc58c43-641f-4985-80a0-02e4e2bcdb19/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 77c0c06cf345be89a7bfdea692ab0197740d9f5ad98baaf39e02029ee2fea03a [2023-11-29 00:13:47,679 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 00:13:47,700 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 00:13:47,702 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 00:13:47,704 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 00:13:47,704 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 00:13:47,705 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc58c43-641f-4985-80a0-02e4e2bcdb19/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/eca-rers2012/Problem11_label56.c [2023-11-29 00:13:50,451 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 00:13:50,730 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 00:13:50,730 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc58c43-641f-4985-80a0-02e4e2bcdb19/sv-benchmarks/c/eca-rers2012/Problem11_label56.c [2023-11-29 00:13:50,745 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc58c43-641f-4985-80a0-02e4e2bcdb19/bin/uautomizer-verify-BQ2R08f2Ya/data/cd10befff/3ea03b50d716445f9e00b2fae9eff52c/FLAG3fce9514c [2023-11-29 00:13:50,759 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc58c43-641f-4985-80a0-02e4e2bcdb19/bin/uautomizer-verify-BQ2R08f2Ya/data/cd10befff/3ea03b50d716445f9e00b2fae9eff52c [2023-11-29 00:13:50,762 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 00:13:50,763 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 00:13:50,765 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 00:13:50,765 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 00:13:50,770 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 00:13:50,770 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:13:50" (1/1) ... [2023-11-29 00:13:50,771 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d1f9eb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:13:50, skipping insertion in model container [2023-11-29 00:13:50,772 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:13:50" (1/1) ... [2023-11-29 00:13:50,824 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 00:13:50,995 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_3cc58c43-641f-4985-80a0-02e4e2bcdb19/sv-benchmarks/c/eca-rers2012/Problem11_label56.c[5994,6007] [2023-11-29 00:13:51,208 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:13:51,220 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 00:13:51,245 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_3cc58c43-641f-4985-80a0-02e4e2bcdb19/sv-benchmarks/c/eca-rers2012/Problem11_label56.c[5994,6007] [2023-11-29 00:13:51,345 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:13:51,357 INFO L206 MainTranslator]: Completed translation [2023-11-29 00:13:51,358 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:13:51 WrapperNode [2023-11-29 00:13:51,358 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 00:13:51,359 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 00:13:51,359 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 00:13:51,359 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 00:13:51,364 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:13:51" (1/1) ... [2023-11-29 00:13:51,388 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:13:51" (1/1) ... [2023-11-29 00:13:51,461 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1000 [2023-11-29 00:13:51,461 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 00:13:51,461 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 00:13:51,462 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 00:13:51,462 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 00:13:51,503 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:13:51" (1/1) ... [2023-11-29 00:13:51,504 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:13:51" (1/1) ... [2023-11-29 00:13:51,511 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:13:51" (1/1) ... [2023-11-29 00:13:51,561 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-29 00:13:51,561 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:13:51" (1/1) ... [2023-11-29 00:13:51,561 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:13:51" (1/1) ... [2023-11-29 00:13:51,599 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:13:51" (1/1) ... [2023-11-29 00:13:51,607 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:13:51" (1/1) ... [2023-11-29 00:13:51,625 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:13:51" (1/1) ... [2023-11-29 00:13:51,630 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:13:51" (1/1) ... [2023-11-29 00:13:51,642 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 00:13:51,643 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 00:13:51,643 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 00:13:51,643 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 00:13:51,644 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:13:51" (1/1) ... [2023-11-29 00:13:51,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 00:13:51,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc58c43-641f-4985-80a0-02e4e2bcdb19/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:13:51,669 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc58c43-641f-4985-80a0-02e4e2bcdb19/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 00:13:51,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc58c43-641f-4985-80a0-02e4e2bcdb19/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 00:13:51,709 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 00:13:51,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 00:13:51,709 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 00:13:51,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 00:13:51,772 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 00:13:51,774 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 00:13:53,264 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 00:13:53,320 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 00:13:53,321 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 00:13:53,321 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:13:53 BoogieIcfgContainer [2023-11-29 00:13:53,321 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 00:13:53,324 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 00:13:53,324 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 00:13:53,327 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 00:13:53,328 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 12:13:50" (1/3) ... [2023-11-29 00:13:53,328 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7914c71e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 12:13:53, skipping insertion in model container [2023-11-29 00:13:53,328 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:13:51" (2/3) ... [2023-11-29 00:13:53,329 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7914c71e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 12:13:53, skipping insertion in model container [2023-11-29 00:13:53,329 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:13:53" (3/3) ... [2023-11-29 00:13:53,330 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label56.c [2023-11-29 00:13:53,350 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 00:13:53,350 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 00:13:53,406 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 00:13:53,413 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;@f07c6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 00:13:53,413 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 00:13:53,419 INFO L276 IsEmpty]: Start isEmpty. Operand has 221 states, 219 states have (on average 1.917808219178082) internal successors, (420), 220 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:13:53,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-29 00:13:53,427 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:13:53,427 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] [2023-11-29 00:13:53,428 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:13:53,433 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:13:53,434 INFO L85 PathProgramCache]: Analyzing trace with hash 1457688258, now seen corresponding path program 1 times [2023-11-29 00:13:53,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:13:53,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334454173] [2023-11-29 00:13:53,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:13:53,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:13:53,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:13:53,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:13:53,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:13:53,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334454173] [2023-11-29 00:13:53,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334454173] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:13:53,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:13:53,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 00:13:53,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510110764] [2023-11-29 00:13:53,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:13:53,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 00:13:53,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:13:53,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 00:13:53,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 00:13:53,680 INFO L87 Difference]: Start difference. First operand has 221 states, 219 states have (on average 1.917808219178082) internal successors, (420), 220 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:13:53,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:13:53,737 INFO L93 Difference]: Finished difference Result 441 states and 839 transitions. [2023-11-29 00:13:53,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 00:13:53,740 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2023-11-29 00:13:53,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:13:53,753 INFO L225 Difference]: With dead ends: 441 [2023-11-29 00:13:53,753 INFO L226 Difference]: Without dead ends: 219 [2023-11-29 00:13:53,757 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 00:13:53,760 INFO L413 NwaCegarLoop]: 355 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 00:13:53,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 355 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 00:13:53,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2023-11-29 00:13:53,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 219. [2023-11-29 00:13:53,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 218 states have (on average 1.628440366972477) internal successors, (355), 218 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:13:53,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 355 transitions. [2023-11-29 00:13:53,811 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 355 transitions. Word has length 40 [2023-11-29 00:13:53,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:13:53,812 INFO L495 AbstractCegarLoop]: Abstraction has 219 states and 355 transitions. [2023-11-29 00:13:53,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:13:53,812 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 355 transitions. [2023-11-29 00:13:53,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-29 00:13:53,814 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:13:53,814 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] [2023-11-29 00:13:53,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 00:13:53,814 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:13:53,815 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:13:53,815 INFO L85 PathProgramCache]: Analyzing trace with hash 395515990, now seen corresponding path program 1 times [2023-11-29 00:13:53,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:13:53,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465208652] [2023-11-29 00:13:53,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:13:53,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:13:53,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:13:53,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:13:53,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:13:53,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465208652] [2023-11-29 00:13:53,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465208652] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:13:53,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:13:53,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 00:13:53,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609411407] [2023-11-29 00:13:53,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:13:53,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 00:13:53,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:13:53,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 00:13:53,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:13:53,965 INFO L87 Difference]: Start difference. First operand 219 states and 355 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:13:55,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:13:55,040 INFO L93 Difference]: Finished difference Result 630 states and 1029 transitions. [2023-11-29 00:13:55,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:13:55,041 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2023-11-29 00:13:55,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:13:55,044 INFO L225 Difference]: With dead ends: 630 [2023-11-29 00:13:55,045 INFO L226 Difference]: Without dead ends: 412 [2023-11-29 00:13:55,046 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:13:55,047 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 167 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 557 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 00:13:55,048 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 144 Invalid, 644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 557 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 00:13:55,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2023-11-29 00:13:55,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 410. [2023-11-29 00:13:55,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 409 states have (on average 1.4596577017114913) internal successors, (597), 409 states have internal predecessors, (597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:13:55,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 597 transitions. [2023-11-29 00:13:55,076 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 597 transitions. Word has length 40 [2023-11-29 00:13:55,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:13:55,076 INFO L495 AbstractCegarLoop]: Abstraction has 410 states and 597 transitions. [2023-11-29 00:13:55,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:13:55,077 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 597 transitions. [2023-11-29 00:13:55,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-11-29 00:13:55,081 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:13:55,082 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, 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] [2023-11-29 00:13:55,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 00:13:55,082 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:13:55,083 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:13:55,083 INFO L85 PathProgramCache]: Analyzing trace with hash 778302685, now seen corresponding path program 1 times [2023-11-29 00:13:55,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:13:55,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865549613] [2023-11-29 00:13:55,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:13:55,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:13:55,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:13:55,273 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:13:55,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:13:55,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865549613] [2023-11-29 00:13:55,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865549613] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:13:55,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:13:55,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 00:13:55,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209922144] [2023-11-29 00:13:55,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:13:55,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 00:13:55,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:13:55,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 00:13:55,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:13:55,276 INFO L87 Difference]: Start difference. First operand 410 states and 597 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 2 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:13:56,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:13:56,160 INFO L93 Difference]: Finished difference Result 1208 states and 1764 transitions. [2023-11-29 00:13:56,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:13:56,161 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 2 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2023-11-29 00:13:56,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:13:56,166 INFO L225 Difference]: With dead ends: 1208 [2023-11-29 00:13:56,166 INFO L226 Difference]: Without dead ends: 799 [2023-11-29 00:13:56,169 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:13:56,170 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 142 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 00:13:56,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 120 Invalid, 672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 524 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 00:13:56,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 799 states. [2023-11-29 00:13:56,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 799 to 786. [2023-11-29 00:13:56,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 786 states, 785 states have (on average 1.3847133757961783) internal successors, (1087), 785 states have internal predecessors, (1087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:13:56,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 786 states to 786 states and 1087 transitions. [2023-11-29 00:13:56,202 INFO L78 Accepts]: Start accepts. Automaton has 786 states and 1087 transitions. Word has length 108 [2023-11-29 00:13:56,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:13:56,203 INFO L495 AbstractCegarLoop]: Abstraction has 786 states and 1087 transitions. [2023-11-29 00:13:56,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 2 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:13:56,204 INFO L276 IsEmpty]: Start isEmpty. Operand 786 states and 1087 transitions. [2023-11-29 00:13:56,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-11-29 00:13:56,207 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:13:56,207 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, 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] [2023-11-29 00:13:56,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 00:13:56,208 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:13:56,208 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:13:56,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1010160478, now seen corresponding path program 1 times [2023-11-29 00:13:56,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:13:56,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697758059] [2023-11-29 00:13:56,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:13:56,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:13:56,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:13:56,541 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:13:56,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:13:56,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697758059] [2023-11-29 00:13:56,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697758059] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:13:56,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:13:56,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 00:13:56,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601591834] [2023-11-29 00:13:56,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:13:56,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 00:13:56,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:13:56,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 00:13:56,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:13:56,546 INFO L87 Difference]: Start difference. First operand 786 states and 1087 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:13:57,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:13:57,261 INFO L93 Difference]: Finished difference Result 1941 states and 2628 transitions. [2023-11-29 00:13:57,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:13:57,262 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2023-11-29 00:13:57,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:13:57,268 INFO L225 Difference]: With dead ends: 1941 [2023-11-29 00:13:57,268 INFO L226 Difference]: Without dead ends: 1156 [2023-11-29 00:13:57,270 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:13:57,271 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 119 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 00:13:57,271 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 188 Invalid, 569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 532 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 00:13:57,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1156 states. [2023-11-29 00:13:57,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1156 to 1155. [2023-11-29 00:13:57,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1155 states, 1154 states have (on average 1.2772963604852687) internal successors, (1474), 1154 states have internal predecessors, (1474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:13:57,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1155 states to 1155 states and 1474 transitions. [2023-11-29 00:13:57,302 INFO L78 Accepts]: Start accepts. Automaton has 1155 states and 1474 transitions. Word has length 110 [2023-11-29 00:13:57,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:13:57,303 INFO L495 AbstractCegarLoop]: Abstraction has 1155 states and 1474 transitions. [2023-11-29 00:13:57,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:13:57,303 INFO L276 IsEmpty]: Start isEmpty. Operand 1155 states and 1474 transitions. [2023-11-29 00:13:57,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-11-29 00:13:57,307 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:13:57,307 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:13:57,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 00:13:57,307 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:13:57,308 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:13:57,308 INFO L85 PathProgramCache]: Analyzing trace with hash 692574361, now seen corresponding path program 1 times [2023-11-29 00:13:57,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:13:57,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658265297] [2023-11-29 00:13:57,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:13:57,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:13:57,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:13:57,525 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:13:57,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:13:57,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658265297] [2023-11-29 00:13:57,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658265297] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:13:57,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:13:57,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 00:13:57,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685145700] [2023-11-29 00:13:57,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:13:57,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 00:13:57,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:13:57,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 00:13:57,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:13:57,529 INFO L87 Difference]: Start difference. First operand 1155 states and 1474 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:13:58,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:13:58,377 INFO L93 Difference]: Finished difference Result 2690 states and 3512 transitions. [2023-11-29 00:13:58,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:13:58,379 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 152 [2023-11-29 00:13:58,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:13:58,389 INFO L225 Difference]: With dead ends: 2690 [2023-11-29 00:13:58,389 INFO L226 Difference]: Without dead ends: 1720 [2023-11-29 00:13:58,390 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:13:58,392 INFO L413 NwaCegarLoop]: 313 mSDtfsCounter, 165 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 549 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 00:13:58,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 333 Invalid, 648 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 549 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 00:13:58,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1720 states. [2023-11-29 00:13:58,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1720 to 1527. [2023-11-29 00:13:58,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1527 states, 1526 states have (on average 1.2608125819134994) internal successors, (1924), 1526 states have internal predecessors, (1924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:13:58,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1527 states to 1527 states and 1924 transitions. [2023-11-29 00:13:58,436 INFO L78 Accepts]: Start accepts. Automaton has 1527 states and 1924 transitions. Word has length 152 [2023-11-29 00:13:58,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:13:58,437 INFO L495 AbstractCegarLoop]: Abstraction has 1527 states and 1924 transitions. [2023-11-29 00:13:58,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:13:58,437 INFO L276 IsEmpty]: Start isEmpty. Operand 1527 states and 1924 transitions. [2023-11-29 00:13:58,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2023-11-29 00:13:58,441 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:13:58,441 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-29 00:13:58,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 00:13:58,441 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:13:58,442 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:13:58,442 INFO L85 PathProgramCache]: Analyzing trace with hash 1499387557, now seen corresponding path program 1 times [2023-11-29 00:13:58,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:13:58,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936379934] [2023-11-29 00:13:58,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:13:58,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:13:58,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:13:58,663 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2023-11-29 00:13:58,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:13:58,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936379934] [2023-11-29 00:13:58,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936379934] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:13:58,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:13:58,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 00:13:58,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497107909] [2023-11-29 00:13:58,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:13:58,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 00:13:58,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:13:58,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 00:13:58,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:13:58,666 INFO L87 Difference]: Start difference. First operand 1527 states and 1924 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:13:59,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:13:59,636 INFO L93 Difference]: Finished difference Result 4159 states and 5314 transitions. [2023-11-29 00:13:59,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:13:59,637 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 222 [2023-11-29 00:13:59,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:13:59,649 INFO L225 Difference]: With dead ends: 4159 [2023-11-29 00:13:59,649 INFO L226 Difference]: Without dead ends: 2633 [2023-11-29 00:13:59,652 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:13:59,653 INFO L413 NwaCegarLoop]: 330 mSDtfsCounter, 173 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 00:13:59,654 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 349 Invalid, 676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 00:13:59,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2633 states. [2023-11-29 00:13:59,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2633 to 2633. [2023-11-29 00:13:59,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2633 states, 2632 states have (on average 1.2469604863221884) internal successors, (3282), 2632 states have internal predecessors, (3282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:13:59,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2633 states to 2633 states and 3282 transitions. [2023-11-29 00:13:59,700 INFO L78 Accepts]: Start accepts. Automaton has 2633 states and 3282 transitions. Word has length 222 [2023-11-29 00:13:59,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:13:59,701 INFO L495 AbstractCegarLoop]: Abstraction has 2633 states and 3282 transitions. [2023-11-29 00:13:59,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:13:59,702 INFO L276 IsEmpty]: Start isEmpty. Operand 2633 states and 3282 transitions. [2023-11-29 00:13:59,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2023-11-29 00:13:59,707 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:13:59,707 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:13:59,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 00:13:59,708 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:13:59,708 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:13:59,708 INFO L85 PathProgramCache]: Analyzing trace with hash 695330856, now seen corresponding path program 1 times [2023-11-29 00:13:59,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:13:59,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38601769] [2023-11-29 00:13:59,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:13:59,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:13:59,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:13:59,868 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-11-29 00:13:59,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:13:59,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38601769] [2023-11-29 00:13:59,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38601769] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:13:59,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:13:59,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 00:13:59,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728781435] [2023-11-29 00:13:59,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:13:59,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 00:13:59,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:13:59,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 00:13:59,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:13:59,872 INFO L87 Difference]: Start difference. First operand 2633 states and 3282 transitions. Second operand has 3 states, 3 states have (on average 65.0) internal successors, (195), 2 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:14:00,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:14:00,686 INFO L93 Difference]: Finished difference Result 6552 states and 8156 transitions. [2023-11-29 00:14:00,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:14:00,687 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.0) internal successors, (195), 2 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 233 [2023-11-29 00:14:00,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:14:00,703 INFO L225 Difference]: With dead ends: 6552 [2023-11-29 00:14:00,703 INFO L226 Difference]: Without dead ends: 3920 [2023-11-29 00:14:00,707 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:14:00,708 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 115 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 161 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 161 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 00:14:00,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 153 Invalid, 610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [161 Valid, 449 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 00:14:00,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3920 states. [2023-11-29 00:14:00,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3920 to 3184. [2023-11-29 00:14:00,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3184 states, 3183 states have (on average 1.1699654414074772) internal successors, (3724), 3183 states have internal predecessors, (3724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:14:00,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3184 states to 3184 states and 3724 transitions. [2023-11-29 00:14:00,769 INFO L78 Accepts]: Start accepts. Automaton has 3184 states and 3724 transitions. Word has length 233 [2023-11-29 00:14:00,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:14:00,770 INFO L495 AbstractCegarLoop]: Abstraction has 3184 states and 3724 transitions. [2023-11-29 00:14:00,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.0) internal successors, (195), 2 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:14:00,770 INFO L276 IsEmpty]: Start isEmpty. Operand 3184 states and 3724 transitions. [2023-11-29 00:14:00,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2023-11-29 00:14:00,773 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:14:00,773 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2023-11-29 00:14:00,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 00:14:00,774 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:14:00,774 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:14:00,774 INFO L85 PathProgramCache]: Analyzing trace with hash -1587777178, now seen corresponding path program 1 times [2023-11-29 00:14:00,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:14:00,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785378255] [2023-11-29 00:14:00,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:14:00,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:14:00,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:14:01,039 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2023-11-29 00:14:01,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:14:01,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785378255] [2023-11-29 00:14:01,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785378255] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:14:01,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:14:01,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 00:14:01,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416700738] [2023-11-29 00:14:01,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:14:01,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 00:14:01,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:14:01,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 00:14:01,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:14:01,041 INFO L87 Difference]: Start difference. First operand 3184 states and 3724 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:14:02,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:14:02,022 INFO L93 Difference]: Finished difference Result 7107 states and 8337 transitions. [2023-11-29 00:14:02,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:14:02,023 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 249 [2023-11-29 00:14:02,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:14:02,045 INFO L225 Difference]: With dead ends: 7107 [2023-11-29 00:14:02,045 INFO L226 Difference]: Without dead ends: 3924 [2023-11-29 00:14:02,049 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:14:02,052 INFO L413 NwaCegarLoop]: 348 mSDtfsCounter, 160 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 575 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 00:14:02,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 369 Invalid, 669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 575 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 00:14:02,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3924 states. [2023-11-29 00:14:02,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3924 to 3735. [2023-11-29 00:14:02,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3735 states, 3734 states have (on average 1.1606855918585968) internal successors, (4334), 3734 states have internal predecessors, (4334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:14:02,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3735 states to 3735 states and 4334 transitions. [2023-11-29 00:14:02,138 INFO L78 Accepts]: Start accepts. Automaton has 3735 states and 4334 transitions. Word has length 249 [2023-11-29 00:14:02,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:14:02,139 INFO L495 AbstractCegarLoop]: Abstraction has 3735 states and 4334 transitions. [2023-11-29 00:14:02,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:14:02,140 INFO L276 IsEmpty]: Start isEmpty. Operand 3735 states and 4334 transitions. [2023-11-29 00:14:02,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2023-11-29 00:14:02,145 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:14:02,145 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2023-11-29 00:14:02,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-29 00:14:02,146 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:14:02,146 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:14:02,147 INFO L85 PathProgramCache]: Analyzing trace with hash -571318670, now seen corresponding path program 1 times [2023-11-29 00:14:02,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:14:02,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461260723] [2023-11-29 00:14:02,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:14:02,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:14:02,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:14:02,507 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2023-11-29 00:14:02,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:14:02,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461260723] [2023-11-29 00:14:02,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461260723] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:14:02,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:14:02,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 00:14:02,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413473016] [2023-11-29 00:14:02,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:14:02,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 00:14:02,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:14:02,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 00:14:02,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:14:02,510 INFO L87 Difference]: Start difference. First operand 3735 states and 4334 transitions. Second operand has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:14:03,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:14:03,363 INFO L93 Difference]: Finished difference Result 8578 states and 9917 transitions. [2023-11-29 00:14:03,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:14:03,364 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 262 [2023-11-29 00:14:03,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:14:03,383 INFO L225 Difference]: With dead ends: 8578 [2023-11-29 00:14:03,383 INFO L226 Difference]: Without dead ends: 4844 [2023-11-29 00:14:03,386 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:14:03,387 INFO L413 NwaCegarLoop]: 359 mSDtfsCounter, 179 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 567 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 00:14:03,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 387 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 567 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 00:14:03,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4844 states. [2023-11-29 00:14:03,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4844 to 4843. [2023-11-29 00:14:03,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4843 states, 4842 states have (on average 1.1526228831061545) internal successors, (5581), 4842 states have internal predecessors, (5581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:14:03,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4843 states to 4843 states and 5581 transitions. [2023-11-29 00:14:03,461 INFO L78 Accepts]: Start accepts. Automaton has 4843 states and 5581 transitions. Word has length 262 [2023-11-29 00:14:03,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:14:03,462 INFO L495 AbstractCegarLoop]: Abstraction has 4843 states and 5581 transitions. [2023-11-29 00:14:03,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:14:03,462 INFO L276 IsEmpty]: Start isEmpty. Operand 4843 states and 5581 transitions. [2023-11-29 00:14:03,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2023-11-29 00:14:03,466 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:14:03,466 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2023-11-29 00:14:03,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-29 00:14:03,467 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:14:03,467 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:14:03,467 INFO L85 PathProgramCache]: Analyzing trace with hash -398711536, now seen corresponding path program 1 times [2023-11-29 00:14:03,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:14:03,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646034973] [2023-11-29 00:14:03,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:14:03,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:14:03,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:14:03,926 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 180 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:14:03,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:14:03,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646034973] [2023-11-29 00:14:03,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646034973] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:14:03,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:14:03,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 00:14:03,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179853976] [2023-11-29 00:14:03,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:14:03,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 00:14:03,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:14:03,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 00:14:03,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 00:14:03,929 INFO L87 Difference]: Start difference. First operand 4843 states and 5581 transitions. Second operand has 4 states, 4 states have (on average 67.75) internal successors, (271), 3 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:14:05,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:14:05,423 INFO L93 Difference]: Finished difference Result 13561 states and 15893 transitions. [2023-11-29 00:14:05,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 00:14:05,424 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 67.75) internal successors, (271), 3 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 271 [2023-11-29 00:14:05,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:14:05,465 INFO L225 Difference]: With dead ends: 13561 [2023-11-29 00:14:05,466 INFO L226 Difference]: Without dead ends: 9087 [2023-11-29 00:14:05,471 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 00:14:05,472 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 221 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 1054 mSolverCounterSat, 307 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 1361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 307 IncrementalHoareTripleChecker+Valid, 1054 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-29 00:14:05,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 123 Invalid, 1361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [307 Valid, 1054 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-29 00:14:05,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9087 states. [2023-11-29 00:14:05,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9087 to 8896. [2023-11-29 00:14:05,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8896 states, 8895 states have (on average 1.1535694210230467) internal successors, (10261), 8895 states have internal predecessors, (10261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:14:05,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8896 states to 8896 states and 10261 transitions. [2023-11-29 00:14:05,648 INFO L78 Accepts]: Start accepts. Automaton has 8896 states and 10261 transitions. Word has length 271 [2023-11-29 00:14:05,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:14:05,648 INFO L495 AbstractCegarLoop]: Abstraction has 8896 states and 10261 transitions. [2023-11-29 00:14:05,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 67.75) internal successors, (271), 3 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:14:05,649 INFO L276 IsEmpty]: Start isEmpty. Operand 8896 states and 10261 transitions. [2023-11-29 00:14:05,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2023-11-29 00:14:05,658 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:14:05,659 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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, 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] [2023-11-29 00:14:05,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-29 00:14:05,659 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:14:05,659 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:14:05,660 INFO L85 PathProgramCache]: Analyzing trace with hash -1023940531, now seen corresponding path program 1 times [2023-11-29 00:14:05,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:14:05,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327719639] [2023-11-29 00:14:05,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:14:05,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:14:05,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:14:05,921 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2023-11-29 00:14:05,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:14:05,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327719639] [2023-11-29 00:14:05,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327719639] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:14:05,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:14:05,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 00:14:05,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334879652] [2023-11-29 00:14:05,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:14:05,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 00:14:05,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:14:05,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 00:14:05,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:14:05,924 INFO L87 Difference]: Start difference. First operand 8896 states and 10261 transitions. Second operand has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:14:06,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:14:06,753 INFO L93 Difference]: Finished difference Result 19634 states and 22698 transitions. [2023-11-29 00:14:06,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:14:06,754 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 299 [2023-11-29 00:14:06,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:14:06,778 INFO L225 Difference]: With dead ends: 19634 [2023-11-29 00:14:06,778 INFO L226 Difference]: Without dead ends: 11107 [2023-11-29 00:14:06,785 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:14:06,786 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 194 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 534 mSolverCounterSat, 154 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 154 IncrementalHoareTripleChecker+Valid, 534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 00:14:06,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 70 Invalid, 688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [154 Valid, 534 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 00:14:06,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11107 states. [2023-11-29 00:14:06,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11107 to 10736. [2023-11-29 00:14:06,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10736 states, 10735 states have (on average 1.1461574289706566) internal successors, (12304), 10735 states have internal predecessors, (12304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:14:06,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10736 states to 10736 states and 12304 transitions. [2023-11-29 00:14:06,956 INFO L78 Accepts]: Start accepts. Automaton has 10736 states and 12304 transitions. Word has length 299 [2023-11-29 00:14:06,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:14:06,957 INFO L495 AbstractCegarLoop]: Abstraction has 10736 states and 12304 transitions. [2023-11-29 00:14:06,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:14:06,957 INFO L276 IsEmpty]: Start isEmpty. Operand 10736 states and 12304 transitions. [2023-11-29 00:14:06,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2023-11-29 00:14:06,963 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:14:06,964 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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, 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] [2023-11-29 00:14:06,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-29 00:14:06,964 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:14:06,965 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:14:06,965 INFO L85 PathProgramCache]: Analyzing trace with hash -1862715496, now seen corresponding path program 1 times [2023-11-29 00:14:06,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:14:06,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544042327] [2023-11-29 00:14:06,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:14:06,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:14:07,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:14:07,298 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2023-11-29 00:14:07,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:14:07,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544042327] [2023-11-29 00:14:07,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544042327] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:14:07,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:14:07,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 00:14:07,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323113401] [2023-11-29 00:14:07,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:14:07,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 00:14:07,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:14:07,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 00:14:07,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:14:07,301 INFO L87 Difference]: Start difference. First operand 10736 states and 12304 transitions. Second operand has 3 states, 3 states have (on average 49.0) internal successors, (147), 2 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:14:08,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:14:08,064 INFO L93 Difference]: Finished difference Result 23501 states and 26922 transitions. [2023-11-29 00:14:08,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:14:08,065 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 2 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 301 [2023-11-29 00:14:08,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:14:08,082 INFO L225 Difference]: With dead ends: 23501 [2023-11-29 00:14:08,082 INFO L226 Difference]: Without dead ends: 13134 [2023-11-29 00:14:08,090 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:14:08,090 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 73 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 540 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 00:14:08,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 160 Invalid, 565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 540 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 00:14:08,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13134 states. [2023-11-29 00:14:08,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13134 to 10736. [2023-11-29 00:14:08,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10736 states, 10735 states have (on average 1.1461574289706566) internal successors, (12304), 10735 states have internal predecessors, (12304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:14:08,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10736 states to 10736 states and 12304 transitions. [2023-11-29 00:14:08,261 INFO L78 Accepts]: Start accepts. Automaton has 10736 states and 12304 transitions. Word has length 301 [2023-11-29 00:14:08,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:14:08,262 INFO L495 AbstractCegarLoop]: Abstraction has 10736 states and 12304 transitions. [2023-11-29 00:14:08,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 2 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:14:08,262 INFO L276 IsEmpty]: Start isEmpty. Operand 10736 states and 12304 transitions. [2023-11-29 00:14:08,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2023-11-29 00:14:08,274 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:14:08,274 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-29 00:14:08,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-29 00:14:08,275 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:14:08,275 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:14:08,275 INFO L85 PathProgramCache]: Analyzing trace with hash 1862866362, now seen corresponding path program 1 times [2023-11-29 00:14:08,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:14:08,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554339488] [2023-11-29 00:14:08,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:14:08,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:14:08,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:14:08,703 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 375 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-11-29 00:14:08,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:14:08,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554339488] [2023-11-29 00:14:08,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554339488] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:14:08,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:14:08,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 00:14:08,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420074062] [2023-11-29 00:14:08,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:14:08,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 00:14:08,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:14:08,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 00:14:08,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:14:08,706 INFO L87 Difference]: Start difference. First operand 10736 states and 12304 transitions. Second operand has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:14:09,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:14:09,446 INFO L93 Difference]: Finished difference Result 21101 states and 24225 transitions. [2023-11-29 00:14:09,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:14:09,447 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 376 [2023-11-29 00:14:09,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:14:09,460 INFO L225 Difference]: With dead ends: 21101 [2023-11-29 00:14:09,460 INFO L226 Difference]: Without dead ends: 10734 [2023-11-29 00:14:09,467 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:14:09,468 INFO L413 NwaCegarLoop]: 280 mSDtfsCounter, 142 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 551 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 00:14:09,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 299 Invalid, 577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 551 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 00:14:09,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10734 states. [2023-11-29 00:14:09,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10734 to 10734. [2023-11-29 00:14:09,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10734 states, 10733 states have (on average 1.1424578403055996) internal successors, (12262), 10733 states have internal predecessors, (12262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:14:09,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10734 states to 10734 states and 12262 transitions. [2023-11-29 00:14:09,603 INFO L78 Accepts]: Start accepts. Automaton has 10734 states and 12262 transitions. Word has length 376 [2023-11-29 00:14:09,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:14:09,603 INFO L495 AbstractCegarLoop]: Abstraction has 10734 states and 12262 transitions. [2023-11-29 00:14:09,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:14:09,604 INFO L276 IsEmpty]: Start isEmpty. Operand 10734 states and 12262 transitions. [2023-11-29 00:14:09,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2023-11-29 00:14:09,611 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:14:09,611 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-29 00:14:09,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-29 00:14:09,612 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:14:09,612 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:14:09,612 INFO L85 PathProgramCache]: Analyzing trace with hash -2126028387, now seen corresponding path program 1 times [2023-11-29 00:14:09,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:14:09,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195174424] [2023-11-29 00:14:09,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:14:09,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:14:09,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:14:09,793 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 116 proven. 0 refuted. 0 times theorem prover too weak. 326 trivial. 0 not checked. [2023-11-29 00:14:09,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:14:09,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195174424] [2023-11-29 00:14:09,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195174424] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:14:09,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:14:09,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 00:14:09,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262995046] [2023-11-29 00:14:09,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:14:09,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 00:14:09,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:14:09,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 00:14:09,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:14:09,796 INFO L87 Difference]: Start difference. First operand 10734 states and 12262 transitions. Second operand has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:14:10,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:14:10,430 INFO L93 Difference]: Finished difference Result 22754 states and 26003 transitions. [2023-11-29 00:14:10,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:14:10,431 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 390 [2023-11-29 00:14:10,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:14:10,443 INFO L225 Difference]: With dead ends: 22754 [2023-11-29 00:14:10,443 INFO L226 Difference]: Without dead ends: 12389 [2023-11-29 00:14:10,450 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:14:10,451 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 177 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 00:14:10,451 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 149 Invalid, 561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 00:14:10,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12389 states. [2023-11-29 00:14:10,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12389 to 8521. [2023-11-29 00:14:10,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8521 states, 8520 states have (on average 1.1475352112676056) internal successors, (9777), 8520 states have internal predecessors, (9777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:14:10,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8521 states to 8521 states and 9777 transitions. [2023-11-29 00:14:10,580 INFO L78 Accepts]: Start accepts. Automaton has 8521 states and 9777 transitions. Word has length 390 [2023-11-29 00:14:10,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:14:10,581 INFO L495 AbstractCegarLoop]: Abstraction has 8521 states and 9777 transitions. [2023-11-29 00:14:10,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:14:10,581 INFO L276 IsEmpty]: Start isEmpty. Operand 8521 states and 9777 transitions. [2023-11-29 00:14:10,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2023-11-29 00:14:10,591 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:14:10,592 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-29 00:14:10,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-29 00:14:10,592 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:14:10,592 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:14:10,592 INFO L85 PathProgramCache]: Analyzing trace with hash 965577455, now seen corresponding path program 1 times [2023-11-29 00:14:10,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:14:10,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747157991] [2023-11-29 00:14:10,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:14:10,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:14:10,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:14:11,027 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 354 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2023-11-29 00:14:11,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:14:11,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747157991] [2023-11-29 00:14:11,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747157991] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:14:11,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:14:11,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 00:14:11,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437201416] [2023-11-29 00:14:11,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:14:11,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 00:14:11,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:14:11,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 00:14:11,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:14:11,030 INFO L87 Difference]: Start difference. First operand 8521 states and 9777 transitions. Second operand has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:14:11,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:14:11,716 INFO L93 Difference]: Finished difference Result 18528 states and 21264 transitions. [2023-11-29 00:14:11,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:14:11,717 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 412 [2023-11-29 00:14:11,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:14:11,727 INFO L225 Difference]: With dead ends: 18528 [2023-11-29 00:14:11,727 INFO L226 Difference]: Without dead ends: 10008 [2023-11-29 00:14:11,734 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:14:11,735 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 66 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 576 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 00:14:11,735 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 170 Invalid, 628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 576 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 00:14:11,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10008 states. [2023-11-29 00:14:11,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10008 to 9809. [2023-11-29 00:14:11,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9809 states, 9808 states have (on average 1.1300978792822185) internal successors, (11084), 9808 states have internal predecessors, (11084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:14:11,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9809 states to 9809 states and 11084 transitions. [2023-11-29 00:14:11,916 INFO L78 Accepts]: Start accepts. Automaton has 9809 states and 11084 transitions. Word has length 412 [2023-11-29 00:14:11,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:14:11,916 INFO L495 AbstractCegarLoop]: Abstraction has 9809 states and 11084 transitions. [2023-11-29 00:14:11,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:14:11,917 INFO L276 IsEmpty]: Start isEmpty. Operand 9809 states and 11084 transitions. [2023-11-29 00:14:11,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 494 [2023-11-29 00:14:11,936 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:14:11,936 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-29 00:14:11,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-29 00:14:11,937 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:14:11,937 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:14:11,937 INFO L85 PathProgramCache]: Analyzing trace with hash -1198342670, now seen corresponding path program 1 times [2023-11-29 00:14:11,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:14:11,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709004148] [2023-11-29 00:14:11,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:14:11,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:14:12,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:14:12,504 INFO L134 CoverageAnalysis]: Checked inductivity of 746 backedges. 474 proven. 0 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2023-11-29 00:14:12,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:14:12,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709004148] [2023-11-29 00:14:12,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709004148] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:14:12,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:14:12,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 00:14:12,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678921523] [2023-11-29 00:14:12,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:14:12,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 00:14:12,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:14:12,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 00:14:12,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:14:12,511 INFO L87 Difference]: Start difference. First operand 9809 states and 11084 transitions. Second operand has 3 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:14:13,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:14:13,345 INFO L93 Difference]: Finished difference Result 19443 states and 21990 transitions. [2023-11-29 00:14:13,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:14:13,346 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 493 [2023-11-29 00:14:13,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:14:13,354 INFO L225 Difference]: With dead ends: 19443 [2023-11-29 00:14:13,354 INFO L226 Difference]: Without dead ends: 9817 [2023-11-29 00:14:13,359 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:14:13,360 INFO L413 NwaCegarLoop]: 339 mSDtfsCounter, 63 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 572 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 00:14:13,360 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 357 Invalid, 654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 572 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 00:14:13,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9817 states. [2023-11-29 00:14:13,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9817 to 9807. [2023-11-29 00:14:13,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9807 states, 9806 states have (on average 1.1007546400163166) internal successors, (10794), 9806 states have internal predecessors, (10794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:14:13,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9807 states to 9807 states and 10794 transitions. [2023-11-29 00:14:13,461 INFO L78 Accepts]: Start accepts. Automaton has 9807 states and 10794 transitions. Word has length 493 [2023-11-29 00:14:13,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:14:13,462 INFO L495 AbstractCegarLoop]: Abstraction has 9807 states and 10794 transitions. [2023-11-29 00:14:13,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:14:13,462 INFO L276 IsEmpty]: Start isEmpty. Operand 9807 states and 10794 transitions. [2023-11-29 00:14:13,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 501 [2023-11-29 00:14:13,475 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:14:13,476 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-29 00:14:13,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-29 00:14:13,476 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:14:13,477 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:14:13,477 INFO L85 PathProgramCache]: Analyzing trace with hash -1403927381, now seen corresponding path program 1 times [2023-11-29 00:14:13,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:14:13,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126859047] [2023-11-29 00:14:13,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:14:13,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:14:13,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:14:13,995 INFO L134 CoverageAnalysis]: Checked inductivity of 753 backedges. 544 proven. 0 refuted. 0 times theorem prover too weak. 209 trivial. 0 not checked. [2023-11-29 00:14:13,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:14:13,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126859047] [2023-11-29 00:14:13,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126859047] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:14:13,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:14:13,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 00:14:13,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591484636] [2023-11-29 00:14:13,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:14:13,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 00:14:13,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:14:13,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 00:14:13,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:14:13,998 INFO L87 Difference]: Start difference. First operand 9807 states and 10794 transitions. Second operand has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:14:14,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:14:14,697 INFO L93 Difference]: Finished difference Result 21279 states and 23444 transitions. [2023-11-29 00:14:14,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:14:14,698 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 500 [2023-11-29 00:14:14,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:14:14,706 INFO L225 Difference]: With dead ends: 21279 [2023-11-29 00:14:14,706 INFO L226 Difference]: Without dead ends: 11841 [2023-11-29 00:14:14,710 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:14:14,710 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 135 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 566 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 00:14:14,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 124 Invalid, 619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 566 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 00:14:14,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11841 states. [2023-11-29 00:14:14,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11841 to 10916. [2023-11-29 00:14:14,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10916 states, 10915 states have (on average 1.0979386165826843) internal successors, (11984), 10915 states have internal predecessors, (11984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:14:14,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10916 states to 10916 states and 11984 transitions. [2023-11-29 00:14:14,860 INFO L78 Accepts]: Start accepts. Automaton has 10916 states and 11984 transitions. Word has length 500 [2023-11-29 00:14:14,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:14:14,861 INFO L495 AbstractCegarLoop]: Abstraction has 10916 states and 11984 transitions. [2023-11-29 00:14:14,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:14:14,861 INFO L276 IsEmpty]: Start isEmpty. Operand 10916 states and 11984 transitions. [2023-11-29 00:14:14,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 511 [2023-11-29 00:14:14,875 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:14:14,876 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:14:14,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-29 00:14:14,876 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:14:14,877 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:14:14,877 INFO L85 PathProgramCache]: Analyzing trace with hash 253668356, now seen corresponding path program 1 times [2023-11-29 00:14:14,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:14:14,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644403064] [2023-11-29 00:14:14,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:14:14,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:14:14,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:14:15,493 INFO L134 CoverageAnalysis]: Checked inductivity of 773 backedges. 653 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-11-29 00:14:15,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:14:15,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644403064] [2023-11-29 00:14:15,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644403064] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:14:15,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:14:15,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 00:14:15,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878900272] [2023-11-29 00:14:15,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:14:15,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 00:14:15,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:14:15,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 00:14:15,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 00:14:15,495 INFO L87 Difference]: Start difference. First operand 10916 states and 11984 transitions. Second operand has 4 states, 4 states have (on average 98.0) internal successors, (392), 3 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:14:16,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:14:16,659 INFO L93 Difference]: Finished difference Result 28475 states and 31257 transitions. [2023-11-29 00:14:16,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 00:14:16,660 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 98.0) internal successors, (392), 3 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 510 [2023-11-29 00:14:16,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:14:16,672 INFO L225 Difference]: With dead ends: 28475 [2023-11-29 00:14:16,672 INFO L226 Difference]: Without dead ends: 17376 [2023-11-29 00:14:16,677 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 00:14:16,678 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 202 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 1123 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 1224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 1123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:14:16,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 78 Invalid, 1224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 1123 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 00:14:16,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17376 states. [2023-11-29 00:14:16,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17376 to 16454. [2023-11-29 00:14:16,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16454 states, 16453 states have (on average 1.0923843675925362) internal successors, (17973), 16453 states have internal predecessors, (17973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:14:16,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16454 states to 16454 states and 17973 transitions. [2023-11-29 00:14:16,853 INFO L78 Accepts]: Start accepts. Automaton has 16454 states and 17973 transitions. Word has length 510 [2023-11-29 00:14:16,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:14:16,854 INFO L495 AbstractCegarLoop]: Abstraction has 16454 states and 17973 transitions. [2023-11-29 00:14:16,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 98.0) internal successors, (392), 3 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:14:16,854 INFO L276 IsEmpty]: Start isEmpty. Operand 16454 states and 17973 transitions. [2023-11-29 00:14:16,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 607 [2023-11-29 00:14:16,872 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:14:16,873 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2023-11-29 00:14:16,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-29 00:14:16,873 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:14:16,873 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:14:16,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1476512824, now seen corresponding path program 1 times [2023-11-29 00:14:16,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:14:16,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117550812] [2023-11-29 00:14:16,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:14:16,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:14:16,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:14:17,399 INFO L134 CoverageAnalysis]: Checked inductivity of 1191 backedges. 877 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2023-11-29 00:14:17,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:14:17,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117550812] [2023-11-29 00:14:17,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117550812] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:14:17,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:14:17,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 00:14:17,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927524562] [2023-11-29 00:14:17,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:14:17,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 00:14:17,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:14:17,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 00:14:17,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:14:17,402 INFO L87 Difference]: Start difference. First operand 16454 states and 17973 transitions. Second operand has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:14:18,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:14:18,185 INFO L93 Difference]: Finished difference Result 34204 states and 37380 transitions. [2023-11-29 00:14:18,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:14:18,186 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 606 [2023-11-29 00:14:18,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:14:18,198 INFO L225 Difference]: With dead ends: 34204 [2023-11-29 00:14:18,198 INFO L226 Difference]: Without dead ends: 18119 [2023-11-29 00:14:18,206 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:14:18,206 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 135 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 566 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 00:14:18,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 139 Invalid, 610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 566 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 00:14:18,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18119 states. [2023-11-29 00:14:18,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18119 to 16270. [2023-11-29 00:14:18,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16270 states, 16269 states have (on average 1.0920769561743193) internal successors, (17767), 16269 states have internal predecessors, (17767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:14:18,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16270 states to 16270 states and 17767 transitions. [2023-11-29 00:14:18,425 INFO L78 Accepts]: Start accepts. Automaton has 16270 states and 17767 transitions. Word has length 606 [2023-11-29 00:14:18,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:14:18,426 INFO L495 AbstractCegarLoop]: Abstraction has 16270 states and 17767 transitions. [2023-11-29 00:14:18,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:14:18,426 INFO L276 IsEmpty]: Start isEmpty. Operand 16270 states and 17767 transitions. [2023-11-29 00:14:18,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 635 [2023-11-29 00:14:18,438 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:14:18,439 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-29 00:14:18,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-29 00:14:18,439 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:14:18,439 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:14:18,439 INFO L85 PathProgramCache]: Analyzing trace with hash -450845304, now seen corresponding path program 1 times [2023-11-29 00:14:18,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:14:18,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704586292] [2023-11-29 00:14:18,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:14:18,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:14:18,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:14:18,718 INFO L134 CoverageAnalysis]: Checked inductivity of 1501 backedges. 693 proven. 0 refuted. 0 times theorem prover too weak. 808 trivial. 0 not checked. [2023-11-29 00:14:18,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:14:18,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704586292] [2023-11-29 00:14:18,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704586292] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:14:18,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:14:18,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 00:14:18,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269192155] [2023-11-29 00:14:18,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:14:18,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 00:14:18,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:14:18,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 00:14:18,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:14:18,721 INFO L87 Difference]: Start difference. First operand 16270 states and 17767 transitions. Second operand has 3 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:14:19,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:14:19,500 INFO L93 Difference]: Finished difference Result 33826 states and 36953 transitions. [2023-11-29 00:14:19,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:14:19,501 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 634 [2023-11-29 00:14:19,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:14:19,515 INFO L225 Difference]: With dead ends: 33826 [2023-11-29 00:14:19,515 INFO L226 Difference]: Without dead ends: 17925 [2023-11-29 00:14:19,523 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:14:19,523 INFO L413 NwaCegarLoop]: 314 mSDtfsCounter, 66 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 560 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 560 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 00:14:19,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 334 Invalid, 596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 560 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 00:14:19,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17925 states. [2023-11-29 00:14:19,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17925 to 14971. [2023-11-29 00:14:19,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14971 states, 14970 states have (on average 1.090313961255845) internal successors, (16322), 14970 states have internal predecessors, (16322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:14:19,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14971 states to 14971 states and 16322 transitions. [2023-11-29 00:14:19,729 INFO L78 Accepts]: Start accepts. Automaton has 14971 states and 16322 transitions. Word has length 634 [2023-11-29 00:14:19,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:14:19,730 INFO L495 AbstractCegarLoop]: Abstraction has 14971 states and 16322 transitions. [2023-11-29 00:14:19,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:14:19,730 INFO L276 IsEmpty]: Start isEmpty. Operand 14971 states and 16322 transitions. [2023-11-29 00:14:19,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 662 [2023-11-29 00:14:19,747 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:14:19,747 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-29 00:14:19,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-29 00:14:19,748 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:14:19,748 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:14:19,748 INFO L85 PathProgramCache]: Analyzing trace with hash 359467561, now seen corresponding path program 1 times [2023-11-29 00:14:19,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:14:19,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324549474] [2023-11-29 00:14:19,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:14:19,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:14:19,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:14:21,086 INFO L134 CoverageAnalysis]: Checked inductivity of 1249 backedges. 837 proven. 0 refuted. 0 times theorem prover too weak. 412 trivial. 0 not checked. [2023-11-29 00:14:21,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:14:21,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324549474] [2023-11-29 00:14:21,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324549474] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:14:21,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:14:21,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 00:14:21,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484259376] [2023-11-29 00:14:21,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:14:21,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 00:14:21,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:14:21,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 00:14:21,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 00:14:21,089 INFO L87 Difference]: Start difference. First operand 14971 states and 16322 transitions. Second operand has 7 states, 7 states have (on average 58.857142857142854) internal successors, (412), 6 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:14:22,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:14:22,604 INFO L93 Difference]: Finished difference Result 35573 states and 38738 transitions. [2023-11-29 00:14:22,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 00:14:22,604 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 58.857142857142854) internal successors, (412), 6 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 661 [2023-11-29 00:14:22,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:14:22,619 INFO L225 Difference]: With dead ends: 35573 [2023-11-29 00:14:22,619 INFO L226 Difference]: Without dead ends: 20971 [2023-11-29 00:14:22,626 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-11-29 00:14:22,627 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 316 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 1812 mSolverCounterSat, 174 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 1986 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 174 IncrementalHoareTripleChecker+Valid, 1812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 00:14:22,627 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [316 Valid, 176 Invalid, 1986 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [174 Valid, 1812 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 00:14:22,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20971 states. [2023-11-29 00:14:22,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20971 to 20680. [2023-11-29 00:14:22,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20680 states, 20679 states have (on average 1.0872866192755937) internal successors, (22484), 20679 states have internal predecessors, (22484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:14:22,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20680 states to 20680 states and 22484 transitions. [2023-11-29 00:14:22,871 INFO L78 Accepts]: Start accepts. Automaton has 20680 states and 22484 transitions. Word has length 661 [2023-11-29 00:14:22,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:14:22,872 INFO L495 AbstractCegarLoop]: Abstraction has 20680 states and 22484 transitions. [2023-11-29 00:14:22,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 58.857142857142854) internal successors, (412), 6 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:14:22,872 INFO L276 IsEmpty]: Start isEmpty. Operand 20680 states and 22484 transitions. [2023-11-29 00:14:22,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 670 [2023-11-29 00:14:22,887 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:14:22,887 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:14:22,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-29 00:14:22,887 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:14:22,887 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:14:22,888 INFO L85 PathProgramCache]: Analyzing trace with hash -1399832733, now seen corresponding path program 1 times [2023-11-29 00:14:22,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:14:22,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306384837] [2023-11-29 00:14:22,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:14:22,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:14:22,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:14:23,561 INFO L134 CoverageAnalysis]: Checked inductivity of 1558 backedges. 1119 proven. 0 refuted. 0 times theorem prover too weak. 439 trivial. 0 not checked. [2023-11-29 00:14:23,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:14:23,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306384837] [2023-11-29 00:14:23,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306384837] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:14:23,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:14:23,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 00:14:23,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049670959] [2023-11-29 00:14:23,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:14:23,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 00:14:23,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:14:23,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 00:14:23,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:14:23,566 INFO L87 Difference]: Start difference. First operand 20680 states and 22484 transitions. Second operand has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:14:24,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:14:24,448 INFO L93 Difference]: Finished difference Result 43381 states and 47188 transitions. [2023-11-29 00:14:24,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:14:24,449 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 669 [2023-11-29 00:14:24,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:14:24,468 INFO L225 Difference]: With dead ends: 43381 [2023-11-29 00:14:24,468 INFO L226 Difference]: Without dead ends: 23070 [2023-11-29 00:14:24,478 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:14:24,478 INFO L413 NwaCegarLoop]: 285 mSDtfsCounter, 123 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 00:14:24,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 306 Invalid, 606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 00:14:24,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23070 states. [2023-11-29 00:14:24,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23070 to 15522. [2023-11-29 00:14:24,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15522 states, 15521 states have (on average 1.0891050834353457) internal successors, (16904), 15521 states have internal predecessors, (16904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:14:24,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15522 states to 15522 states and 16904 transitions. [2023-11-29 00:14:24,726 INFO L78 Accepts]: Start accepts. Automaton has 15522 states and 16904 transitions. Word has length 669 [2023-11-29 00:14:24,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:14:24,726 INFO L495 AbstractCegarLoop]: Abstraction has 15522 states and 16904 transitions. [2023-11-29 00:14:24,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:14:24,726 INFO L276 IsEmpty]: Start isEmpty. Operand 15522 states and 16904 transitions. [2023-11-29 00:14:24,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 672 [2023-11-29 00:14:24,740 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:14:24,741 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-29 00:14:24,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-29 00:14:24,741 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:14:24,741 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:14:24,741 INFO L85 PathProgramCache]: Analyzing trace with hash -702496272, now seen corresponding path program 1 times [2023-11-29 00:14:24,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:14:24,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530082796] [2023-11-29 00:14:24,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:14:24,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:14:24,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:14:26,024 INFO L134 CoverageAnalysis]: Checked inductivity of 1279 backedges. 859 proven. 8 refuted. 0 times theorem prover too weak. 412 trivial. 0 not checked. [2023-11-29 00:14:26,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:14:26,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530082796] [2023-11-29 00:14:26,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530082796] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:14:26,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1664340069] [2023-11-29 00:14:26,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:14:26,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:14:26,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc58c43-641f-4985-80a0-02e4e2bcdb19/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:14:26,026 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc58c43-641f-4985-80a0-02e4e2bcdb19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:14:26,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc58c43-641f-4985-80a0-02e4e2bcdb19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 00:14:26,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:14:26,281 INFO L262 TraceCheckSpWp]: Trace formula consists of 860 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 00:14:26,305 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:14:27,560 INFO L134 CoverageAnalysis]: Checked inductivity of 1279 backedges. 746 proven. 121 refuted. 0 times theorem prover too weak. 412 trivial. 0 not checked. [2023-11-29 00:14:27,560 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:14:30,993 INFO L134 CoverageAnalysis]: Checked inductivity of 1279 backedges. 746 proven. 121 refuted. 0 times theorem prover too weak. 412 trivial. 0 not checked. [2023-11-29 00:14:30,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1664340069] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:14:30,993 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 00:14:30,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3, 3] total 10 [2023-11-29 00:14:30,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058288477] [2023-11-29 00:14:30,995 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 00:14:30,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 00:14:30,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:14:31,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 00:14:31,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-29 00:14:31,001 INFO L87 Difference]: Start difference. First operand 15522 states and 16904 transitions. Second operand has 11 states, 11 states have (on average 89.81818181818181) internal successors, (988), 10 states have internal predecessors, (988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:14:35,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:14:35,175 INFO L93 Difference]: Finished difference Result 37216 states and 40392 transitions. [2023-11-29 00:14:35,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-11-29 00:14:35,175 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 89.81818181818181) internal successors, (988), 10 states have internal predecessors, (988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 671 [2023-11-29 00:14:35,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:14:35,196 INFO L225 Difference]: With dead ends: 37216 [2023-11-29 00:14:35,196 INFO L226 Difference]: Without dead ends: 21875 [2023-11-29 00:14:35,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1373 GetRequests, 1338 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 362 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=363, Invalid=969, Unknown=0, NotChecked=0, Total=1332 [2023-11-29 00:14:35,206 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 1578 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 3534 mSolverCounterSat, 755 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1578 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 4289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 755 IncrementalHoareTripleChecker+Valid, 3534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-11-29 00:14:35,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1578 Valid, 131 Invalid, 4289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [755 Valid, 3534 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-11-29 00:14:35,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21875 states. [2023-11-29 00:14:35,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21875 to 12199. [2023-11-29 00:14:35,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12199 states, 12198 states have (on average 1.0650926381373995) internal successors, (12992), 12198 states have internal predecessors, (12992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:14:35,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12199 states to 12199 states and 12992 transitions. [2023-11-29 00:14:35,391 INFO L78 Accepts]: Start accepts. Automaton has 12199 states and 12992 transitions. Word has length 671 [2023-11-29 00:14:35,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:14:35,392 INFO L495 AbstractCegarLoop]: Abstraction has 12199 states and 12992 transitions. [2023-11-29 00:14:35,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 89.81818181818181) internal successors, (988), 10 states have internal predecessors, (988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:14:35,392 INFO L276 IsEmpty]: Start isEmpty. Operand 12199 states and 12992 transitions. [2023-11-29 00:14:35,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 687 [2023-11-29 00:14:35,404 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:14:35,404 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:14:35,410 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc58c43-641f-4985-80a0-02e4e2bcdb19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 00:14:35,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc58c43-641f-4985-80a0-02e4e2bcdb19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:14:35,605 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:14:35,605 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:14:35,606 INFO L85 PathProgramCache]: Analyzing trace with hash -113469302, now seen corresponding path program 1 times [2023-11-29 00:14:35,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:14:35,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668313350] [2023-11-29 00:14:35,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:14:35,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:14:35,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:14:36,394 INFO L134 CoverageAnalysis]: Checked inductivity of 1436 backedges. 1039 proven. 64 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2023-11-29 00:14:36,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:14:36,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668313350] [2023-11-29 00:14:36,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668313350] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:14:36,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1046296919] [2023-11-29 00:14:36,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:14:36,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:14:36,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc58c43-641f-4985-80a0-02e4e2bcdb19/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:14:36,396 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc58c43-641f-4985-80a0-02e4e2bcdb19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:14:36,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc58c43-641f-4985-80a0-02e4e2bcdb19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 00:14:36,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:14:36,680 INFO L262 TraceCheckSpWp]: Trace formula consists of 873 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 00:14:36,688 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:14:36,841 INFO L134 CoverageAnalysis]: Checked inductivity of 1436 backedges. 1103 proven. 0 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2023-11-29 00:14:36,842 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:14:36,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1046296919] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:14:36,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:14:36,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2023-11-29 00:14:36,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048250421] [2023-11-29 00:14:36,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:14:36,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 00:14:36,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:14:36,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 00:14:36,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 00:14:36,845 INFO L87 Difference]: Start difference. First operand 12199 states and 12992 transitions. Second operand has 3 states, 3 states have (on average 131.66666666666666) internal successors, (395), 3 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:14:37,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:14:37,520 INFO L93 Difference]: Finished difference Result 25328 states and 26992 transitions. [2023-11-29 00:14:37,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:14:37,525 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 131.66666666666666) internal successors, (395), 3 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 686 [2023-11-29 00:14:37,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:14:37,537 INFO L225 Difference]: With dead ends: 25328 [2023-11-29 00:14:37,537 INFO L226 Difference]: Without dead ends: 13314 [2023-11-29 00:14:37,542 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 689 GetRequests, 685 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 00:14:37,543 INFO L413 NwaCegarLoop]: 301 mSDtfsCounter, 77 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 00:14:37,543 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 317 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 00:14:37,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13314 states. [2023-11-29 00:14:37,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13314 to 12199. [2023-11-29 00:14:37,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12199 states, 12198 states have (on average 1.0624692572552878) internal successors, (12960), 12198 states have internal predecessors, (12960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:14:37,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12199 states to 12199 states and 12960 transitions. [2023-11-29 00:14:37,706 INFO L78 Accepts]: Start accepts. Automaton has 12199 states and 12960 transitions. Word has length 686 [2023-11-29 00:14:37,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:14:37,707 INFO L495 AbstractCegarLoop]: Abstraction has 12199 states and 12960 transitions. [2023-11-29 00:14:37,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 131.66666666666666) internal successors, (395), 3 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:14:37,707 INFO L276 IsEmpty]: Start isEmpty. Operand 12199 states and 12960 transitions. [2023-11-29 00:14:37,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 716 [2023-11-29 00:14:37,716 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:14:37,717 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:14:37,722 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc58c43-641f-4985-80a0-02e4e2bcdb19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 00:14:37,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc58c43-641f-4985-80a0-02e4e2bcdb19/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-11-29 00:14:37,918 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:14:37,918 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:14:37,918 INFO L85 PathProgramCache]: Analyzing trace with hash 1793926166, now seen corresponding path program 1 times [2023-11-29 00:14:37,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:14:37,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264443650] [2023-11-29 00:14:37,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:14:37,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:14:38,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:14:38,551 INFO L134 CoverageAnalysis]: Checked inductivity of 1656 backedges. 1192 proven. 0 refuted. 0 times theorem prover too weak. 464 trivial. 0 not checked. [2023-11-29 00:14:38,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:14:38,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264443650] [2023-11-29 00:14:38,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264443650] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:14:38,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:14:38,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 00:14:38,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267125141] [2023-11-29 00:14:38,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:14:38,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 00:14:38,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:14:38,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 00:14:38,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:14:38,554 INFO L87 Difference]: Start difference. First operand 12199 states and 12960 transitions. Second operand has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:14:39,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:14:39,162 INFO L93 Difference]: Finished difference Result 25329 states and 26932 transitions. [2023-11-29 00:14:39,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:14:39,163 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 715 [2023-11-29 00:14:39,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:14:39,171 INFO L225 Difference]: With dead ends: 25329 [2023-11-29 00:14:39,172 INFO L226 Difference]: Without dead ends: 13499 [2023-11-29 00:14:39,177 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:14:39,177 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 130 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 00:14:39,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 100 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 518 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 00:14:39,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13499 states. [2023-11-29 00:14:39,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13499 to 12015. [2023-11-29 00:14:39,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12015 states, 12014 states have (on average 1.0620109871816215) internal successors, (12759), 12014 states have internal predecessors, (12759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:14:39,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12015 states to 12015 states and 12759 transitions. [2023-11-29 00:14:39,299 INFO L78 Accepts]: Start accepts. Automaton has 12015 states and 12759 transitions. Word has length 715 [2023-11-29 00:14:39,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:14:39,299 INFO L495 AbstractCegarLoop]: Abstraction has 12015 states and 12759 transitions. [2023-11-29 00:14:39,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:14:39,299 INFO L276 IsEmpty]: Start isEmpty. Operand 12015 states and 12759 transitions. [2023-11-29 00:14:39,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 750 [2023-11-29 00:14:39,308 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:14:39,308 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-29 00:14:39,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-11-29 00:14:39,309 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:14:39,309 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:14:39,309 INFO L85 PathProgramCache]: Analyzing trace with hash 1195867011, now seen corresponding path program 1 times [2023-11-29 00:14:39,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:14:39,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288250742] [2023-11-29 00:14:39,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:14:39,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:14:39,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:14:39,820 INFO L134 CoverageAnalysis]: Checked inductivity of 1751 backedges. 1292 proven. 0 refuted. 0 times theorem prover too weak. 459 trivial. 0 not checked. [2023-11-29 00:14:39,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:14:39,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288250742] [2023-11-29 00:14:39,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288250742] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:14:39,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:14:39,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 00:14:39,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473040590] [2023-11-29 00:14:39,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:14:39,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 00:14:39,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:14:39,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 00:14:39,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:14:39,823 INFO L87 Difference]: Start difference. First operand 12015 states and 12759 transitions. Second operand has 3 states, 3 states have (on average 138.0) internal successors, (414), 3 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:14:40,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:14:40,483 INFO L93 Difference]: Finished difference Result 23105 states and 24549 transitions. [2023-11-29 00:14:40,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:14:40,483 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 138.0) internal successors, (414), 3 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 749 [2023-11-29 00:14:40,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:14:40,491 INFO L225 Difference]: With dead ends: 23105 [2023-11-29 00:14:40,491 INFO L226 Difference]: Without dead ends: 11459 [2023-11-29 00:14:40,496 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:14:40,496 INFO L413 NwaCegarLoop]: 256 mSDtfsCounter, 65 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 00:14:40,496 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 265 Invalid, 568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 449 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 00:14:40,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11459 states. [2023-11-29 00:14:40,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11459 to 9615. [2023-11-29 00:14:40,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9615 states, 9614 states have (on average 1.0582483877678386) internal successors, (10174), 9614 states have internal predecessors, (10174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:14:40,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9615 states to 9615 states and 10174 transitions. [2023-11-29 00:14:40,603 INFO L78 Accepts]: Start accepts. Automaton has 9615 states and 10174 transitions. Word has length 749 [2023-11-29 00:14:40,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:14:40,604 INFO L495 AbstractCegarLoop]: Abstraction has 9615 states and 10174 transitions. [2023-11-29 00:14:40,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 138.0) internal successors, (414), 3 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:14:40,604 INFO L276 IsEmpty]: Start isEmpty. Operand 9615 states and 10174 transitions. [2023-11-29 00:14:40,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 811 [2023-11-29 00:14:40,612 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:14:40,613 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2023-11-29 00:14:40,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-11-29 00:14:40,613 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:14:40,613 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:14:40,614 INFO L85 PathProgramCache]: Analyzing trace with hash -1605379270, now seen corresponding path program 1 times [2023-11-29 00:14:40,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:14:40,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467735036] [2023-11-29 00:14:40,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:14:40,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:14:40,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:14:41,126 INFO L134 CoverageAnalysis]: Checked inductivity of 1864 backedges. 1298 proven. 0 refuted. 0 times theorem prover too weak. 566 trivial. 0 not checked. [2023-11-29 00:14:41,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:14:41,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467735036] [2023-11-29 00:14:41,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467735036] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:14:41,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:14:41,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 00:14:41,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846981819] [2023-11-29 00:14:41,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:14:41,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 00:14:41,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:14:41,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 00:14:41,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:14:41,129 INFO L87 Difference]: Start difference. First operand 9615 states and 10174 transitions. Second operand has 3 states, 3 states have (on average 130.0) internal successors, (390), 3 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:14:41,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:14:41,680 INFO L93 Difference]: Finished difference Result 19413 states and 20551 transitions. [2023-11-29 00:14:41,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:14:41,681 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 130.0) internal successors, (390), 3 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 810 [2023-11-29 00:14:41,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:14:41,688 INFO L225 Difference]: With dead ends: 19413 [2023-11-29 00:14:41,688 INFO L226 Difference]: Without dead ends: 10351 [2023-11-29 00:14:41,692 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:14:41,692 INFO L413 NwaCegarLoop]: 314 mSDtfsCounter, 108 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 00:14:41,692 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 336 Invalid, 489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 00:14:41,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10351 states. [2023-11-29 00:14:41,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10351 to 9983. [2023-11-29 00:14:41,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9983 states, 9982 states have (on average 1.0572029653376076) internal successors, (10553), 9982 states have internal predecessors, (10553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:14:41,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9983 states to 9983 states and 10553 transitions. [2023-11-29 00:14:41,786 INFO L78 Accepts]: Start accepts. Automaton has 9983 states and 10553 transitions. Word has length 810 [2023-11-29 00:14:41,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:14:41,787 INFO L495 AbstractCegarLoop]: Abstraction has 9983 states and 10553 transitions. [2023-11-29 00:14:41,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 130.0) internal successors, (390), 3 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:14:41,787 INFO L276 IsEmpty]: Start isEmpty. Operand 9983 states and 10553 transitions. [2023-11-29 00:14:41,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 816 [2023-11-29 00:14:41,795 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:14:41,795 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2023-11-29 00:14:41,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-11-29 00:14:41,795 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:14:41,796 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:14:41,796 INFO L85 PathProgramCache]: Analyzing trace with hash -926618484, now seen corresponding path program 1 times [2023-11-29 00:14:41,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:14:41,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467787870] [2023-11-29 00:14:41,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:14:41,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:14:41,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:14:42,737 INFO L134 CoverageAnalysis]: Checked inductivity of 1876 backedges. 1474 proven. 0 refuted. 0 times theorem prover too weak. 402 trivial. 0 not checked. [2023-11-29 00:14:42,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:14:42,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467787870] [2023-11-29 00:14:42,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467787870] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:14:42,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:14:42,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 00:14:42,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624807633] [2023-11-29 00:14:42,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:14:42,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 00:14:42,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:14:42,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 00:14:42,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 00:14:42,740 INFO L87 Difference]: Start difference. First operand 9983 states and 10553 transitions. Second operand has 4 states, 4 states have (on average 130.5) internal successors, (522), 4 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:14:43,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:14:43,959 INFO L93 Difference]: Finished difference Result 22925 states and 24205 transitions. [2023-11-29 00:14:43,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 00:14:43,960 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 130.5) internal successors, (522), 4 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 815 [2023-11-29 00:14:43,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:14:43,969 INFO L225 Difference]: With dead ends: 22925 [2023-11-29 00:14:43,969 INFO L226 Difference]: Without dead ends: 12759 [2023-11-29 00:14:43,974 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 00:14:43,975 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 234 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 984 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 1114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 984 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:14:43,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 69 Invalid, 1114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 984 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 00:14:43,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12759 states. [2023-11-29 00:14:44,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12759 to 9065. [2023-11-29 00:14:44,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9065 states, 9064 states have (on average 1.0520741394527802) internal successors, (9536), 9064 states have internal predecessors, (9536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:14:44,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9065 states to 9065 states and 9536 transitions. [2023-11-29 00:14:44,098 INFO L78 Accepts]: Start accepts. Automaton has 9065 states and 9536 transitions. Word has length 815 [2023-11-29 00:14:44,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:14:44,098 INFO L495 AbstractCegarLoop]: Abstraction has 9065 states and 9536 transitions. [2023-11-29 00:14:44,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 130.5) internal successors, (522), 4 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:14:44,098 INFO L276 IsEmpty]: Start isEmpty. Operand 9065 states and 9536 transitions. [2023-11-29 00:14:44,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 872 [2023-11-29 00:14:44,105 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:14:44,106 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:14:44,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-11-29 00:14:44,106 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:14:44,106 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:14:44,106 INFO L85 PathProgramCache]: Analyzing trace with hash 104421009, now seen corresponding path program 1 times [2023-11-29 00:14:44,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:14:44,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138577415] [2023-11-29 00:14:44,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:14:44,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:14:44,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:14:45,046 INFO L134 CoverageAnalysis]: Checked inductivity of 2032 backedges. 1524 proven. 0 refuted. 0 times theorem prover too weak. 508 trivial. 0 not checked. [2023-11-29 00:14:45,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:14:45,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138577415] [2023-11-29 00:14:45,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138577415] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:14:45,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:14:45,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 00:14:45,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428766370] [2023-11-29 00:14:45,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:14:45,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 00:14:45,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:14:45,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 00:14:45,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 00:14:45,049 INFO L87 Difference]: Start difference. First operand 9065 states and 9536 transitions. Second operand has 4 states, 4 states have (on average 130.0) internal successors, (520), 4 states have internal predecessors, (520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:14:45,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:14:45,850 INFO L93 Difference]: Finished difference Result 15724 states and 16546 transitions. [2023-11-29 00:14:45,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 00:14:45,851 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 130.0) internal successors, (520), 4 states have internal predecessors, (520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 871 [2023-11-29 00:14:45,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:14:45,851 INFO L225 Difference]: With dead ends: 15724 [2023-11-29 00:14:45,851 INFO L226 Difference]: Without dead ends: 0 [2023-11-29 00:14:45,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 00:14:45,855 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 222 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 882 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 950 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 882 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 00:14:45,855 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 38 Invalid, 950 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 882 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 00:14:45,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-29 00:14:45,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-29 00:14:45,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:14:45,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-29 00:14:45,856 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 871 [2023-11-29 00:14:45,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:14:45,856 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 00:14:45,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 130.0) internal successors, (520), 4 states have internal predecessors, (520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:14:45,856 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-29 00:14:45,856 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-29 00:14:45,858 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-29 00:14:45,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-11-29 00:14:45,860 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-29 00:14:56,333 WARN L293 SmtUtils]: Spent 10.47s on a formula simplification. DAG size of input: 582 DAG size of output: 821 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2023-11-29 00:15:00,611 INFO L899 garLoopResultBuilder]: For program point L498(lines 498 509) no Hoare annotation was computed. [2023-11-29 00:15:00,611 INFO L899 garLoopResultBuilder]: For program point L432(lines 432 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,611 INFO L899 garLoopResultBuilder]: For program point L498-2(lines 498 509) no Hoare annotation was computed. [2023-11-29 00:15:00,611 INFO L899 garLoopResultBuilder]: For program point L168-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 00:15:00,611 INFO L899 garLoopResultBuilder]: For program point L102-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 00:15:00,611 INFO L899 garLoopResultBuilder]: For program point L36-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 00:15:00,611 INFO L899 garLoopResultBuilder]: For program point L1027(lines 1027 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,611 INFO L899 garLoopResultBuilder]: For program point L631(lines 631 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,611 INFO L899 garLoopResultBuilder]: For program point L565(lines 565 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,611 INFO L899 garLoopResultBuilder]: For program point L896(lines 896 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,611 INFO L899 garLoopResultBuilder]: For program point L698(lines 698 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,611 INFO L899 garLoopResultBuilder]: For program point L368(lines 368 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,611 INFO L899 garLoopResultBuilder]: For program point L963(lines 963 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,611 INFO L899 garLoopResultBuilder]: For program point L237(lines 237 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,611 INFO L899 garLoopResultBuilder]: For program point L171-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 00:15:00,611 INFO L899 garLoopResultBuilder]: For program point L105-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 00:15:00,612 INFO L899 garLoopResultBuilder]: For program point L39-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 00:15:00,612 INFO L899 garLoopResultBuilder]: For program point L832(lines 832 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,612 INFO L899 garLoopResultBuilder]: For program point L304(lines 304 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,612 INFO L899 garLoopResultBuilder]: For program point L767(lines 767 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,612 INFO L899 garLoopResultBuilder]: For program point L768(lines 768 778) no Hoare annotation was computed. [2023-11-29 00:15:00,612 INFO L899 garLoopResultBuilder]: For program point L768-2(lines 768 778) no Hoare annotation was computed. [2023-11-29 00:15:00,612 INFO L899 garLoopResultBuilder]: For program point L174-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 00:15:00,612 INFO L899 garLoopResultBuilder]: For program point L108-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 00:15:00,612 INFO L899 garLoopResultBuilder]: For program point L42-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 00:15:00,612 INFO L899 garLoopResultBuilder]: For program point L835(lines 835 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,612 INFO L899 garLoopResultBuilder]: For program point L571(lines 571 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,612 INFO L899 garLoopResultBuilder]: For program point L439(lines 439 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,613 INFO L899 garLoopResultBuilder]: For program point L968(lines 968 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,613 INFO L899 garLoopResultBuilder]: For program point L704(lines 704 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,613 INFO L899 garLoopResultBuilder]: For program point L638(lines 638 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,613 INFO L899 garLoopResultBuilder]: For program point L903(lines 903 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,613 INFO L899 garLoopResultBuilder]: For program point L705(lines 705 715) no Hoare annotation was computed. [2023-11-29 00:15:00,613 INFO L899 garLoopResultBuilder]: For program point L705-2(lines 705 715) no Hoare annotation was computed. [2023-11-29 00:15:00,613 INFO L899 garLoopResultBuilder]: For program point L375(lines 375 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,613 INFO L899 garLoopResultBuilder]: For program point L309(lines 309 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,613 INFO L899 garLoopResultBuilder]: For program point L243(lines 243 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,613 INFO L899 garLoopResultBuilder]: For program point L177-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 00:15:00,613 INFO L899 garLoopResultBuilder]: For program point L111-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 00:15:00,613 INFO L899 garLoopResultBuilder]: For program point L45-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 00:15:00,613 INFO L899 garLoopResultBuilder]: For program point L1038(lines 1038 1054) no Hoare annotation was computed. [2023-11-29 00:15:00,614 INFO L899 garLoopResultBuilder]: For program point L576(lines 576 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,614 INFO L899 garLoopResultBuilder]: For program point L510(lines 510 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,614 INFO L899 garLoopResultBuilder]: For program point L180-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 00:15:00,614 INFO L899 garLoopResultBuilder]: For program point L114-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 00:15:00,614 INFO L899 garLoopResultBuilder]: For program point L48-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 00:15:00,614 INFO L899 garLoopResultBuilder]: For program point L973(lines 973 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,614 INFO L899 garLoopResultBuilder]: For program point L841(lines 841 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,614 INFO L899 garLoopResultBuilder]: For program point L908(lines 908 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,614 INFO L899 garLoopResultBuilder]: For program point L446(lines 446 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,614 INFO L899 garLoopResultBuilder]: For program point L380(lines 380 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,614 INFO L899 garLoopResultBuilder]: For program point L645(lines 645 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,614 INFO L899 garLoopResultBuilder]: For program point L315(lines 315 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,614 INFO L899 garLoopResultBuilder]: For program point L183-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 00:15:00,614 INFO L899 garLoopResultBuilder]: For program point L117-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 00:15:00,615 INFO L899 garLoopResultBuilder]: For program point L51-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 00:15:00,615 INFO L899 garLoopResultBuilder]: For program point L250(lines 250 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,615 INFO L899 garLoopResultBuilder]: For program point L779(lines 779 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,615 INFO L895 garLoopResultBuilder]: At program point L1044-2(lines 1044 1053) the Hoare annotation is: (let ((.cse10 (<= ~a23~0 600000)) (.cse14 (<= ~a25~0 10)) (.cse13 (<= ~a23~0 599997)) (.cse16 (<= 307 ~a23~0)) (.cse8 (<= 141 ~a29~0)) (.cse4 (<= (+ ~a23~0 55) 0)) (.cse17 (= ~a25~0 10)) (.cse12 (= ~a25~0 11)) (.cse3 (<= ~a29~0 130)) (.cse5 (= ~a25~0 12)) (.cse0 (= ~a4~0 1)) (.cse2 (<= ~a23~0 312)) (.cse15 (<= 260 ~a29~0)) (.cse9 (<= ~a25~0 9)) (.cse1 (= ~a25~0 13)) (.cse18 (<= (+ ~a23~0 43) 0)) (.cse6 (<= ~a29~0 277)) (.cse7 (= ~a4~0 0)) (.cse11 (<= 246 ~a29~0))) (or (and (<= ~a23~0 138) .cse0 (not (= ~a25~0 9))) (and .cse1 .cse0 .cse2 .cse3) (and .cse4 .cse5 .cse6 .cse7 .cse8) (and .cse0 .cse2 .cse9 (<= 0 (+ ~a23~0 42))) (and .cse10 (or (and .cse5 .cse6 .cse0 .cse11) (and .cse6 .cse12 .cse0 .cse11))) (and .cse4 .cse7 .cse9 .cse3) (and .cse13 .cse8 (or (and .cse5 .cse0 (<= ~a29~0 232)) (and .cse12 (<= ~a29~0 220) .cse0))) (and .cse6 .cse14 .cse8 .cse0) (and .cse10 .cse15 .cse16 .cse12 .cse0) (and .cse1 .cse15 .cse13 .cse0) (and .cse10 .cse15 .cse14 .cse0) (and .cse4 .cse5 .cse7 .cse3) (and .cse13 .cse0 .cse17) (and .cse5 .cse6 .cse7 .cse11) (and .cse1 .cse13 .cse16 .cse0) (and .cse1 (<= ~a29~0 240) .cse8 .cse0) (and .cse4 (or (and .cse7 .cse17 .cse3) (and .cse7 .cse12 .cse3))) (and .cse5 (or (< ~a23~0 307) (< ~a29~0 278)) .cse0 .cse2) (and .cse15 .cse18 .cse7 .cse9) (and .cse1 .cse18 .cse6 .cse7 .cse11))) [2023-11-29 00:15:00,615 INFO L899 garLoopResultBuilder]: For program point L846(lines 846 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,615 INFO L899 garLoopResultBuilder]: For program point L582(lines 582 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,615 INFO L899 garLoopResultBuilder]: For program point L186-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 00:15:00,615 INFO L899 garLoopResultBuilder]: For program point L120-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 00:15:00,615 INFO L899 garLoopResultBuilder]: For program point L54-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 00:15:00,615 INFO L899 garLoopResultBuilder]: For program point L979(lines 979 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,615 INFO L899 garLoopResultBuilder]: For program point L913(lines 913 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,615 INFO L899 garLoopResultBuilder]: For program point L517(lines 517 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,615 INFO L899 garLoopResultBuilder]: For program point L980(lines 980 990) no Hoare annotation was computed. [2023-11-29 00:15:00,616 INFO L899 garLoopResultBuilder]: For program point L914(lines 914 924) no Hoare annotation was computed. [2023-11-29 00:15:00,616 INFO L899 garLoopResultBuilder]: For program point L980-2(lines 980 990) no Hoare annotation was computed. [2023-11-29 00:15:00,616 INFO L899 garLoopResultBuilder]: For program point L914-2(lines 914 924) no Hoare annotation was computed. [2023-11-29 00:15:00,616 INFO L899 garLoopResultBuilder]: For program point L716(lines 716 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,616 INFO L899 garLoopResultBuilder]: For program point L320(lines 320 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,616 INFO L899 garLoopResultBuilder]: For program point L585(lines 585 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,616 INFO L899 garLoopResultBuilder]: For program point L453(lines 453 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,616 INFO L899 garLoopResultBuilder]: For program point L387(lines 387 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,616 INFO L899 garLoopResultBuilder]: For program point L189-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 00:15:00,616 INFO L899 garLoopResultBuilder]: For program point L123-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 00:15:00,616 INFO L899 garLoopResultBuilder]: For program point L57-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 00:15:00,616 INFO L899 garLoopResultBuilder]: For program point L784(lines 784 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,616 INFO L899 garLoopResultBuilder]: For program point L652(lines 652 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,616 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-29 00:15:00,616 INFO L899 garLoopResultBuilder]: For program point L1049(line 1049) no Hoare annotation was computed. [2023-11-29 00:15:00,616 INFO L899 garLoopResultBuilder]: For program point L851(lines 851 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,616 INFO L899 garLoopResultBuilder]: For program point L257(lines 257 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,616 INFO L899 garLoopResultBuilder]: For program point L192-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 00:15:00,616 INFO L899 garLoopResultBuilder]: For program point L126-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 00:15:00,617 INFO L899 garLoopResultBuilder]: For program point L60-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 00:15:00,617 INFO L899 garLoopResultBuilder]: For program point L722(lines 722 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,617 INFO L899 garLoopResultBuilder]: For program point L524(lines 524 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,617 INFO L899 garLoopResultBuilder]: For program point L657(lines 657 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,617 INFO L899 garLoopResultBuilder]: For program point L591(lines 591 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,617 INFO L899 garLoopResultBuilder]: For program point L525(lines 525 535) no Hoare annotation was computed. [2023-11-29 00:15:00,617 INFO L899 garLoopResultBuilder]: For program point L525-2(lines 525 535) no Hoare annotation was computed. [2023-11-29 00:15:00,617 INFO L899 garLoopResultBuilder]: For program point L327(lines 327 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,617 INFO L899 garLoopResultBuilder]: For program point L195-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 00:15:00,617 INFO L899 garLoopResultBuilder]: For program point L129-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 00:15:00,617 INFO L899 garLoopResultBuilder]: For program point L63-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 00:15:00,617 INFO L899 garLoopResultBuilder]: For program point L856(lines 856 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,617 INFO L899 garLoopResultBuilder]: For program point L790(lines 790 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,617 INFO L899 garLoopResultBuilder]: For program point L658(lines 658 667) no Hoare annotation was computed. [2023-11-29 00:15:00,617 INFO L899 garLoopResultBuilder]: For program point L658-2(lines 658 667) no Hoare annotation was computed. [2023-11-29 00:15:00,617 INFO L899 garLoopResultBuilder]: For program point L460(lines 460 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,617 INFO L899 garLoopResultBuilder]: For program point L394(lines 394 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,617 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 139) no Hoare annotation was computed. [2023-11-29 00:15:00,617 INFO L899 garLoopResultBuilder]: For program point L264(lines 264 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,617 INFO L899 garLoopResultBuilder]: For program point L198-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 00:15:00,617 INFO L899 garLoopResultBuilder]: For program point L132-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 00:15:00,618 INFO L899 garLoopResultBuilder]: For program point L66-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 00:15:00,618 INFO L899 garLoopResultBuilder]: For program point L991(lines 991 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,618 INFO L899 garLoopResultBuilder]: For program point L925(lines 925 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,618 INFO L899 garLoopResultBuilder]: For program point L727(lines 727 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,618 INFO L899 garLoopResultBuilder]: For program point L926(lines 926 936) no Hoare annotation was computed. [2023-11-29 00:15:00,618 INFO L899 garLoopResultBuilder]: For program point L926-2(lines 926 936) no Hoare annotation was computed. [2023-11-29 00:15:00,618 INFO L899 garLoopResultBuilder]: For program point L728(lines 728 740) no Hoare annotation was computed. [2023-11-29 00:15:00,618 INFO L899 garLoopResultBuilder]: For program point L728-2(lines 728 740) no Hoare annotation was computed. [2023-11-29 00:15:00,618 INFO L899 garLoopResultBuilder]: For program point L596(lines 596 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,618 INFO L899 garLoopResultBuilder]: For program point L332(lines 332 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,618 INFO L899 garLoopResultBuilder]: For program point L597(lines 597 607) no Hoare annotation was computed. [2023-11-29 00:15:00,618 INFO L899 garLoopResultBuilder]: For program point L597-2(lines 597 607) no Hoare annotation was computed. [2023-11-29 00:15:00,618 INFO L899 garLoopResultBuilder]: For program point L201-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 00:15:00,618 INFO L899 garLoopResultBuilder]: For program point L135-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 00:15:00,618 INFO L899 garLoopResultBuilder]: For program point L69-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 00:15:00,618 INFO L899 garLoopResultBuilder]: For program point L862(lines 862 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,618 INFO L899 garLoopResultBuilder]: For program point L466(lines 466 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,618 INFO L899 garLoopResultBuilder]: For program point L797(lines 797 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,618 INFO L899 garLoopResultBuilder]: For program point L401(lines 401 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,618 INFO L899 garLoopResultBuilder]: For program point L270(lines 270 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,618 INFO L899 garLoopResultBuilder]: For program point L204-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 00:15:00,618 INFO L899 garLoopResultBuilder]: For program point L138-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 00:15:00,619 INFO L899 garLoopResultBuilder]: For program point L72-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 00:15:00,619 INFO L899 garLoopResultBuilder]: For program point L139(line 139) no Hoare annotation was computed. [2023-11-29 00:15:00,619 INFO L899 garLoopResultBuilder]: For program point L998(lines 998 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,619 INFO L899 garLoopResultBuilder]: For program point L668(lines 668 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,619 INFO L899 garLoopResultBuilder]: For program point L536(lines 536 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,619 INFO L899 garLoopResultBuilder]: For program point L339(lines 339 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,619 INFO L899 garLoopResultBuilder]: For program point L207-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 00:15:00,619 INFO L899 garLoopResultBuilder]: For program point L141-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 00:15:00,619 INFO L899 garLoopResultBuilder]: For program point L75-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 00:15:00,619 INFO L899 garLoopResultBuilder]: For program point L802(lines 802 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,619 INFO L899 garLoopResultBuilder]: For program point L869(lines 869 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,619 INFO L899 garLoopResultBuilder]: For program point L473(lines 473 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,619 INFO L899 garLoopResultBuilder]: For program point L275(lines 275 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,619 INFO L899 garLoopResultBuilder]: For program point L408(lines 408 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,619 INFO L899 garLoopResultBuilder]: For program point L210-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 00:15:00,619 INFO L899 garLoopResultBuilder]: For program point L144-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 00:15:00,619 INFO L899 garLoopResultBuilder]: For program point L78-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 00:15:00,619 INFO L899 garLoopResultBuilder]: For program point L1003(lines 1003 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,619 INFO L899 garLoopResultBuilder]: For program point L937(lines 937 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,619 INFO L899 garLoopResultBuilder]: For program point L673(lines 673 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,620 INFO L899 garLoopResultBuilder]: For program point L541(lines 541 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,620 INFO L899 garLoopResultBuilder]: For program point L409(lines 409 420) no Hoare annotation was computed. [2023-11-29 00:15:00,620 INFO L899 garLoopResultBuilder]: For program point L409-2(lines 409 420) no Hoare annotation was computed. [2023-11-29 00:15:00,620 INFO L899 garLoopResultBuilder]: For program point L608(lines 608 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,620 INFO L899 garLoopResultBuilder]: For program point L344(lines 344 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,620 INFO L899 garLoopResultBuilder]: For program point L278(lines 278 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,620 INFO L899 garLoopResultBuilder]: For program point L741(lines 741 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,620 INFO L899 garLoopResultBuilder]: For program point L213-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 00:15:00,620 INFO L899 garLoopResultBuilder]: For program point L147-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 00:15:00,620 INFO L899 garLoopResultBuilder]: For program point L81-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 00:15:00,620 INFO L899 garLoopResultBuilder]: For program point L875(lines 875 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,620 INFO L899 garLoopResultBuilder]: For program point L809(lines 809 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,620 INFO L899 garLoopResultBuilder]: For program point L942(lines 942 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,620 INFO L899 garLoopResultBuilder]: For program point L876(lines 876 885) no Hoare annotation was computed. [2023-11-29 00:15:00,620 INFO L899 garLoopResultBuilder]: For program point L876-2(lines 876 885) no Hoare annotation was computed. [2023-11-29 00:15:00,620 INFO L899 garLoopResultBuilder]: For program point L480(lines 480 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,621 INFO L899 garLoopResultBuilder]: For program point L150-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 00:15:00,621 INFO L899 garLoopResultBuilder]: For program point L84-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 00:15:00,621 INFO L899 garLoopResultBuilder]: For program point L613(lines 613 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,621 INFO L899 garLoopResultBuilder]: For program point L547(lines 547 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,621 INFO L899 garLoopResultBuilder]: For program point L1010(lines 1010 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,621 INFO L899 garLoopResultBuilder]: For program point L680(lines 680 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,621 INFO L899 garLoopResultBuilder]: For program point L614(lines 614 624) no Hoare annotation was computed. [2023-11-29 00:15:00,621 INFO L899 garLoopResultBuilder]: For program point L614-2(lines 614 624) no Hoare annotation was computed. [2023-11-29 00:15:00,621 INFO L899 garLoopResultBuilder]: For program point L350(lines 350 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,621 INFO L899 garLoopResultBuilder]: For program point L285(lines 285 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,621 INFO L899 garLoopResultBuilder]: For program point L153-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 00:15:00,621 INFO L899 garLoopResultBuilder]: For program point L87-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 00:15:00,621 INFO L899 garLoopResultBuilder]: For program point L814(lines 814 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,621 INFO L899 garLoopResultBuilder]: For program point L748(lines 748 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,621 INFO L899 garLoopResultBuilder]: For program point L815(lines 815 825) no Hoare annotation was computed. [2023-11-29 00:15:00,621 INFO L899 garLoopResultBuilder]: For program point L815-2(lines 815 825) no Hoare annotation was computed. [2023-11-29 00:15:00,621 INFO L899 garLoopResultBuilder]: For program point L552(lines 552 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,621 INFO L899 garLoopResultBuilder]: For program point L156-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 00:15:00,621 INFO L899 garLoopResultBuilder]: For program point L90-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 00:15:00,621 INFO L899 garLoopResultBuilder]: For program point L1015(lines 1015 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,621 INFO L899 garLoopResultBuilder]: For program point L949(lines 949 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,621 INFO L899 garLoopResultBuilder]: For program point L685(lines 685 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,622 INFO L899 garLoopResultBuilder]: For program point L487(lines 487 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,622 INFO L899 garLoopResultBuilder]: For program point L421(lines 421 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,622 INFO L899 garLoopResultBuilder]: For program point L950(lines 950 962) no Hoare annotation was computed. [2023-11-29 00:15:00,622 INFO L899 garLoopResultBuilder]: For program point L950-2(lines 950 962) no Hoare annotation was computed. [2023-11-29 00:15:00,622 INFO L899 garLoopResultBuilder]: For program point L488(lines 488 496) no Hoare annotation was computed. [2023-11-29 00:15:00,622 INFO L899 garLoopResultBuilder]: For program point L488-2(lines 488 496) no Hoare annotation was computed. [2023-11-29 00:15:00,622 INFO L899 garLoopResultBuilder]: For program point L356(lines 356 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,622 INFO L899 garLoopResultBuilder]: For program point L290(lines 290 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,622 INFO L899 garLoopResultBuilder]: For program point L224(lines 224 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,622 INFO L899 garLoopResultBuilder]: For program point L753(lines 753 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,622 INFO L899 garLoopResultBuilder]: For program point L159-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 00:15:00,622 INFO L899 garLoopResultBuilder]: For program point L93-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 00:15:00,622 INFO L899 garLoopResultBuilder]: For program point L886(lines 886 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,622 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-29 00:15:00,622 INFO L899 garLoopResultBuilder]: For program point L162-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 00:15:00,622 INFO L899 garLoopResultBuilder]: For program point L96-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 00:15:00,622 INFO L899 garLoopResultBuilder]: For program point L691(lines 691 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,622 INFO L899 garLoopResultBuilder]: For program point L625(lines 625 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,622 INFO L899 garLoopResultBuilder]: For program point L559(lines 559 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,622 INFO L899 garLoopResultBuilder]: For program point L427(lines 427 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,622 INFO L899 garLoopResultBuilder]: For program point L1022(lines 1022 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,622 INFO L899 garLoopResultBuilder]: For program point calculate_output_returnLabel#1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 00:15:00,622 INFO L899 garLoopResultBuilder]: For program point L891(lines 891 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,623 INFO L899 garLoopResultBuilder]: For program point L363(lines 363 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,623 INFO L899 garLoopResultBuilder]: For program point L297(lines 297 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,623 INFO L899 garLoopResultBuilder]: For program point L231(lines 231 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,623 INFO L899 garLoopResultBuilder]: For program point L165-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 00:15:00,623 INFO L899 garLoopResultBuilder]: For program point L99-1(lines 32 1036) no Hoare annotation was computed. [2023-11-29 00:15:00,623 INFO L899 garLoopResultBuilder]: For program point L33(lines 33 35) no Hoare annotation was computed. [2023-11-29 00:15:00,623 INFO L899 garLoopResultBuilder]: For program point L33-2(lines 32 1036) no Hoare annotation was computed. [2023-11-29 00:15:00,623 INFO L899 garLoopResultBuilder]: For program point L826(lines 826 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,623 INFO L899 garLoopResultBuilder]: For program point L760(lines 760 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,623 INFO L899 garLoopResultBuilder]: For program point L497(lines 497 1034) no Hoare annotation was computed. [2023-11-29 00:15:00,626 INFO L445 BasicCegarLoop]: Path program 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] [2023-11-29 00:15:00,627 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 00:15:00,644 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 12:15:00 BoogieIcfgContainer [2023-11-29 00:15:00,645 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 00:15:00,645 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 00:15:00,645 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 00:15:00,645 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 00:15:00,646 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:13:53" (3/4) ... [2023-11-29 00:15:00,648 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-29 00:15:00,671 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-11-29 00:15:00,673 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-29 00:15:00,674 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-29 00:15:00,676 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-29 00:15:00,826 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc58c43-641f-4985-80a0-02e4e2bcdb19/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 00:15:00,826 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc58c43-641f-4985-80a0-02e4e2bcdb19/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-29 00:15:00,826 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 00:15:00,827 INFO L158 Benchmark]: Toolchain (without parser) took 70063.70ms. Allocated memory was 142.6MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 102.2MB in the beginning and 844.0MB in the end (delta: -741.8MB). Peak memory consumption was 566.8MB. Max. memory is 16.1GB. [2023-11-29 00:15:00,827 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 107.0MB. Free memory is still 81.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 00:15:00,827 INFO L158 Benchmark]: CACSL2BoogieTranslator took 593.52ms. Allocated memory is still 142.6MB. Free memory was 101.6MB in the beginning and 56.9MB in the end (delta: 44.7MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2023-11-29 00:15:00,827 INFO L158 Benchmark]: Boogie Procedure Inliner took 102.22ms. Allocated memory is still 142.6MB. Free memory was 56.3MB in the beginning and 39.4MB in the end (delta: 16.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-29 00:15:00,828 INFO L158 Benchmark]: Boogie Preprocessor took 180.35ms. Allocated memory is still 142.6MB. Free memory was 39.4MB in the beginning and 79.4MB in the end (delta: -40.0MB). Peak memory consumption was 11.6MB. Max. memory is 16.1GB. [2023-11-29 00:15:00,828 INFO L158 Benchmark]: RCFGBuilder took 1678.95ms. Allocated memory was 142.6MB in the beginning and 184.5MB in the end (delta: 41.9MB). Free memory was 79.4MB in the beginning and 77.1MB in the end (delta: 2.3MB). Peak memory consumption was 50.2MB. Max. memory is 16.1GB. [2023-11-29 00:15:00,828 INFO L158 Benchmark]: TraceAbstraction took 67320.62ms. Allocated memory was 184.5MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 77.1MB in the beginning and 861.8MB in the end (delta: -784.8MB). Peak memory consumption was 940.0MB. Max. memory is 16.1GB. [2023-11-29 00:15:00,829 INFO L158 Benchmark]: Witness Printer took 181.28ms. Allocated memory is still 1.5GB. Free memory was 861.8MB in the beginning and 844.0MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-29 00:15:00,830 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 107.0MB. Free memory is still 81.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 593.52ms. Allocated memory is still 142.6MB. Free memory was 101.6MB in the beginning and 56.9MB in the end (delta: 44.7MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 102.22ms. Allocated memory is still 142.6MB. Free memory was 56.3MB in the beginning and 39.4MB in the end (delta: 16.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 180.35ms. Allocated memory is still 142.6MB. Free memory was 39.4MB in the beginning and 79.4MB in the end (delta: -40.0MB). Peak memory consumption was 11.6MB. Max. memory is 16.1GB. * RCFGBuilder took 1678.95ms. Allocated memory was 142.6MB in the beginning and 184.5MB in the end (delta: 41.9MB). Free memory was 79.4MB in the beginning and 77.1MB in the end (delta: 2.3MB). Peak memory consumption was 50.2MB. Max. memory is 16.1GB. * TraceAbstraction took 67320.62ms. Allocated memory was 184.5MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 77.1MB in the beginning and 861.8MB in the end (delta: -784.8MB). Peak memory consumption was 940.0MB. Max. memory is 16.1GB. * Witness Printer took 181.28ms. Allocated memory is still 1.5GB. Free memory was 861.8MB in the beginning and 844.0MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 139]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 221 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 67.2s, OverallIterations: 29, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.3s, AutomataDifference: 28.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 14.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5547 SdHoareTripleChecker+Valid, 24.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5547 mSDsluCounter, 6139 SdHoareTripleChecker+Invalid, 21.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 736 mSDsCounter, 3154 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 21112 IncrementalHoareTripleChecker+Invalid, 24266 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3154 mSolverCounterUnsat, 5403 mSDtfsCounter, 21112 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2147 GetRequests, 2070 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 375 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20680occurred in iteration=21, InterpolantAutomatonStates: 127, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.5s AutomataMinimizationTime, 29 MinimizatonAttempts, 40842 StatesRemovedByMinimization, 25 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 51 NumberOfFragments, 328 HoareAnnotationTreeSize, 1 FomulaSimplifications, 172610 FormulaSimplificationTreeSizeReduction, 10.5s HoareSimplificationTime, 1 FomulaSimplificationsInter, 29395 FormulaSimplificationTreeSizeReductionInter, 4.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 16.7s InterpolantComputationTime, 14212 NumberOfCodeBlocks, 14212 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 14851 ConstructedInterpolants, 0 QuantifiedInterpolants, 42537 SizeOfPredicates, 1 NumberOfNonLiveVariables, 1733 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 32 InterpolantComputations, 28 PerfectInterpolantSequences, 25974/26288 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1044]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((a23 <= 138) && (a4 == 1)) && !((a25 == 9))) || ((((a25 == 13) && (a4 == 1)) && (a23 <= 312)) && (a29 <= 130))) || ((((((a23 + 55) <= 0) && (a25 == 12)) && (a29 <= 277)) && (a4 == 0)) && (141 <= a29))) || ((((a4 == 1) && (a23 <= 312)) && (a25 <= 9)) && (0 <= (a23 + 42)))) || ((a23 <= 600000) && (((((a25 == 12) && (a29 <= 277)) && (a4 == 1)) && (246 <= a29)) || ((((a29 <= 277) && (a25 == 11)) && (a4 == 1)) && (246 <= a29))))) || (((((a23 + 55) <= 0) && (a4 == 0)) && (a25 <= 9)) && (a29 <= 130))) || (((a23 <= 599997) && (141 <= a29)) && ((((a25 == 12) && (a4 == 1)) && (a29 <= 232)) || (((a25 == 11) && (a29 <= 220)) && (a4 == 1))))) || ((((a29 <= 277) && (a25 <= 10)) && (141 <= a29)) && (a4 == 1))) || (((((a23 <= 600000) && (260 <= a29)) && (307 <= a23)) && (a25 == 11)) && (a4 == 1))) || ((((a25 == 13) && (260 <= a29)) && (a23 <= 599997)) && (a4 == 1))) || ((((a23 <= 600000) && (260 <= a29)) && (a25 <= 10)) && (a4 == 1))) || (((((a23 + 55) <= 0) && (a25 == 12)) && (a4 == 0)) && (a29 <= 130))) || (((a23 <= 599997) && (a4 == 1)) && (a25 == 10))) || ((((a25 == 12) && (a29 <= 277)) && (a4 == 0)) && (246 <= a29))) || ((((a25 == 13) && (a23 <= 599997)) && (307 <= a23)) && (a4 == 1))) || ((((a25 == 13) && (a29 <= 240)) && (141 <= a29)) && (a4 == 1))) || (((a23 + 55) <= 0) && ((((a4 == 0) && (a25 == 10)) && (a29 <= 130)) || (((a4 == 0) && (a25 == 11)) && (a29 <= 130))))) || ((((a25 == 12) && ((a23 < 307) || (a29 < 278))) && (a4 == 1)) && (a23 <= 312))) || ((((260 <= a29) && ((a23 + 43) <= 0)) && (a4 == 0)) && (a25 <= 9))) || (((((a25 == 13) && ((a23 + 43) <= 0)) && (a29 <= 277)) && (a4 == 0)) && (246 <= a29))) RESULT: Ultimate proved your program to be correct! [2023-11-29 00:15:00,848 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc58c43-641f-4985-80a0-02e4e2bcdb19/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE