./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label03.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a44795b-3219-42b6-8fe2-0ccfa3674b9d/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a44795b-3219-42b6-8fe2-0ccfa3674b9d/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_0a44795b-3219-42b6-8fe2-0ccfa3674b9d/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a44795b-3219-42b6-8fe2-0ccfa3674b9d/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label03.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a44795b-3219-42b6-8fe2-0ccfa3674b9d/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_0a44795b-3219-42b6-8fe2-0ccfa3674b9d/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 d4466c84cf3346dae2c632daaf2229efd1401f42fa973f4243eec5185ec47b02 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 02:21:58,807 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 02:21:58,873 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a44795b-3219-42b6-8fe2-0ccfa3674b9d/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-29 02:21:58,877 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 02:21:58,878 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 02:21:58,902 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 02:21:58,903 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 02:21:58,904 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 02:21:58,904 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 02:21:58,905 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 02:21:58,905 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 02:21:58,906 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 02:21:58,907 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 02:21:58,907 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 02:21:58,908 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 02:21:58,908 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 02:21:58,909 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 02:21:58,909 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 02:21:58,909 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 02:21:58,910 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 02:21:58,910 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 02:21:58,911 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 02:21:58,911 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 02:21:58,912 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 02:21:58,912 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 02:21:58,913 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 02:21:58,913 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 02:21:58,913 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 02:21:58,914 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 02:21:58,914 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 02:21:58,915 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 02:21:58,915 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 02:21:58,915 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 02:21:58,915 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 02:21:58,916 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 02:21:58,916 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 02:21:58,916 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 02:21:58,916 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 02:21:58,916 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 02:21:58,917 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 02:21:58,917 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 02:21:58,917 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 02:21:58,917 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_0a44795b-3219-42b6-8fe2-0ccfa3674b9d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a44795b-3219-42b6-8fe2-0ccfa3674b9d/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d4466c84cf3346dae2c632daaf2229efd1401f42fa973f4243eec5185ec47b02 [2023-11-29 02:21:59,158 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 02:21:59,180 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 02:21:59,183 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 02:21:59,184 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 02:21:59,184 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 02:21:59,185 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a44795b-3219-42b6-8fe2-0ccfa3674b9d/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/eca-rers2012/Problem14_label03.c [2023-11-29 02:22:01,992 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 02:22:02,232 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 02:22:02,232 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a44795b-3219-42b6-8fe2-0ccfa3674b9d/sv-benchmarks/c/eca-rers2012/Problem14_label03.c [2023-11-29 02:22:02,248 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a44795b-3219-42b6-8fe2-0ccfa3674b9d/bin/uautomizer-verify-BQ2R08f2Ya/data/1d6ed7bf3/99c71d6406214a7fa117feb92b3172d2/FLAG5b1bbb179 [2023-11-29 02:22:02,261 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a44795b-3219-42b6-8fe2-0ccfa3674b9d/bin/uautomizer-verify-BQ2R08f2Ya/data/1d6ed7bf3/99c71d6406214a7fa117feb92b3172d2 [2023-11-29 02:22:02,263 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 02:22:02,265 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 02:22:02,266 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 02:22:02,266 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 02:22:02,271 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 02:22:02,271 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:22:02" (1/1) ... [2023-11-29 02:22:02,272 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40c52163 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:22:02, skipping insertion in model container [2023-11-29 02:22:02,272 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:22:02" (1/1) ... [2023-11-29 02:22:02,321 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 02:22:02,486 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_0a44795b-3219-42b6-8fe2-0ccfa3674b9d/sv-benchmarks/c/eca-rers2012/Problem14_label03.c[5277,5290] [2023-11-29 02:22:02,649 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 02:22:02,660 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 02:22:02,684 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_0a44795b-3219-42b6-8fe2-0ccfa3674b9d/sv-benchmarks/c/eca-rers2012/Problem14_label03.c[5277,5290] [2023-11-29 02:22:02,797 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 02:22:02,814 INFO L206 MainTranslator]: Completed translation [2023-11-29 02:22:02,814 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:22:02 WrapperNode [2023-11-29 02:22:02,814 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 02:22:02,816 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 02:22:02,816 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 02:22:02,816 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 02:22:02,824 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:22:02" (1/1) ... [2023-11-29 02:22:02,847 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:22:02" (1/1) ... [2023-11-29 02:22:02,905 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 859 [2023-11-29 02:22:02,906 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 02:22:02,906 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 02:22:02,906 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 02:22:02,907 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 02:22:02,918 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:22:02" (1/1) ... [2023-11-29 02:22:02,919 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:22:02" (1/1) ... [2023-11-29 02:22:02,926 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:22:02" (1/1) ... [2023-11-29 02:22:02,957 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 02:22:02,958 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:22:02" (1/1) ... [2023-11-29 02:22:02,958 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:22:02" (1/1) ... [2023-11-29 02:22:02,978 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:22:02" (1/1) ... [2023-11-29 02:22:02,988 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:22:02" (1/1) ... [2023-11-29 02:22:02,993 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:22:02" (1/1) ... [2023-11-29 02:22:03,000 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:22:02" (1/1) ... [2023-11-29 02:22:03,012 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 02:22:03,013 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 02:22:03,013 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 02:22:03,013 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 02:22:03,014 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:22:02" (1/1) ... [2023-11-29 02:22:03,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 02:22:03,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a44795b-3219-42b6-8fe2-0ccfa3674b9d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:22:03,042 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a44795b-3219-42b6-8fe2-0ccfa3674b9d/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 02:22:03,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a44795b-3219-42b6-8fe2-0ccfa3674b9d/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 02:22:03,081 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 02:22:03,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 02:22:03,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 02:22:03,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 02:22:03,149 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 02:22:03,152 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 02:22:04,248 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 02:22:04,293 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 02:22:04,293 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 02:22:04,294 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:22:04 BoogieIcfgContainer [2023-11-29 02:22:04,294 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 02:22:04,297 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 02:22:04,297 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 02:22:04,300 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 02:22:04,301 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 02:22:02" (1/3) ... [2023-11-29 02:22:04,301 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@612e8127 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 02:22:04, skipping insertion in model container [2023-11-29 02:22:04,301 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:22:02" (2/3) ... [2023-11-29 02:22:04,302 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@612e8127 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 02:22:04, skipping insertion in model container [2023-11-29 02:22:04,302 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:22:04" (3/3) ... [2023-11-29 02:22:04,303 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label03.c [2023-11-29 02:22:04,323 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 02:22:04,323 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 02:22:04,379 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 02:22:04,387 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;@442a28a0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 02:22:04,387 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 02:22:04,392 INFO L276 IsEmpty]: Start isEmpty. Operand has 183 states, 181 states have (on average 1.988950276243094) internal successors, (360), 182 states have internal predecessors, (360), 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 02:22:04,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-29 02:22:04,401 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:22:04,401 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:22:04,402 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:22:04,407 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:22:04,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1529030149, now seen corresponding path program 1 times [2023-11-29 02:22:04,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:22:04,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422266397] [2023-11-29 02:22:04,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:22:04,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:22:04,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:22:04,589 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 02:22:04,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:22:04,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422266397] [2023-11-29 02:22:04,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422266397] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:22:04,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:22:04,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 02:22:04,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587757858] [2023-11-29 02:22:04,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:22:04,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 02:22:04,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:22:04,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 02:22:04,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 02:22:04,628 INFO L87 Difference]: Start difference. First operand has 183 states, 181 states have (on average 1.988950276243094) internal successors, (360), 182 states have internal predecessors, (360), 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 25.0) internal successors, (50), 2 states have internal predecessors, (50), 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 02:22:04,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:22:04,670 INFO L93 Difference]: Finished difference Result 365 states and 719 transitions. [2023-11-29 02:22:04,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 02:22:04,672 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 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 50 [2023-11-29 02:22:04,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:22:04,684 INFO L225 Difference]: With dead ends: 365 [2023-11-29 02:22:04,684 INFO L226 Difference]: Without dead ends: 181 [2023-11-29 02:22:04,688 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 02:22:04,692 INFO L413 NwaCegarLoop]: 295 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, 295 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 02:22:04,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 295 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:22:04,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2023-11-29 02:22:04,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2023-11-29 02:22:04,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 180 states have (on average 1.6388888888888888) internal successors, (295), 180 states have internal predecessors, (295), 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 02:22:04,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 295 transitions. [2023-11-29 02:22:04,740 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 295 transitions. Word has length 50 [2023-11-29 02:22:04,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:22:04,741 INFO L495 AbstractCegarLoop]: Abstraction has 181 states and 295 transitions. [2023-11-29 02:22:04,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 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 02:22:04,741 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 295 transitions. [2023-11-29 02:22:04,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-29 02:22:04,743 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:22:04,743 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:22:04,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 02:22:04,744 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:22:04,744 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:22:04,744 INFO L85 PathProgramCache]: Analyzing trace with hash 1534715820, now seen corresponding path program 1 times [2023-11-29 02:22:04,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:22:04,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105392523] [2023-11-29 02:22:04,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:22:04,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:22:04,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:22:04,887 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 02:22:04,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:22:04,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105392523] [2023-11-29 02:22:04,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105392523] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:22:04,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:22:04,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 02:22:04,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300807144] [2023-11-29 02:22:04,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:22:04,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:22:04,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:22:04,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:22:04,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:22:04,891 INFO L87 Difference]: Start difference. First operand 181 states and 295 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 2 states have internal predecessors, (50), 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 02:22:05,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:22:05,762 INFO L93 Difference]: Finished difference Result 539 states and 882 transitions. [2023-11-29 02:22:05,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:22:05,763 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 2 states have internal predecessors, (50), 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 50 [2023-11-29 02:22:05,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:22:05,767 INFO L225 Difference]: With dead ends: 539 [2023-11-29 02:22:05,767 INFO L226 Difference]: Without dead ends: 359 [2023-11-29 02:22:05,768 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 02:22:05,770 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 131 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 169 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 169 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 02:22:05,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 51 Invalid, 629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [169 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 02:22:05,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2023-11-29 02:22:05,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 359. [2023-11-29 02:22:05,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 358 states have (on average 1.5223463687150838) internal successors, (545), 358 states have internal predecessors, (545), 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 02:22:05,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 545 transitions. [2023-11-29 02:22:05,799 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 545 transitions. Word has length 50 [2023-11-29 02:22:05,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:22:05,800 INFO L495 AbstractCegarLoop]: Abstraction has 359 states and 545 transitions. [2023-11-29 02:22:05,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 2 states have internal predecessors, (50), 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 02:22:05,800 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 545 transitions. [2023-11-29 02:22:05,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-11-29 02:22:05,806 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:22:05,806 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, 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] [2023-11-29 02:22:05,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 02:22:05,807 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:22:05,807 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:22:05,807 INFO L85 PathProgramCache]: Analyzing trace with hash -589166086, now seen corresponding path program 1 times [2023-11-29 02:22:05,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:22:05,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361007731] [2023-11-29 02:22:05,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:22:05,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:22:05,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:22:05,984 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:22:05,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:22:05,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361007731] [2023-11-29 02:22:05,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361007731] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:22:05,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:22:05,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 02:22:05,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247720214] [2023-11-29 02:22:05,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:22:05,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:22:05,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:22:05,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:22:05,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:22:05,987 INFO L87 Difference]: Start difference. First operand 359 states and 545 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 2 states have internal predecessors, (125), 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 02:22:06,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:22:06,687 INFO L93 Difference]: Finished difference Result 1075 states and 1633 transitions. [2023-11-29 02:22:06,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:22:06,687 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 2 states have internal predecessors, (125), 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 125 [2023-11-29 02:22:06,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:22:06,692 INFO L225 Difference]: With dead ends: 1075 [2023-11-29 02:22:06,692 INFO L226 Difference]: Without dead ends: 717 [2023-11-29 02:22:06,694 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 02:22:06,696 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 124 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 02:22:06,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 94 Invalid, 593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 462 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 02:22:06,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2023-11-29 02:22:06,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 715. [2023-11-29 02:22:06,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 715 states, 714 states have (on average 1.3557422969187676) internal successors, (968), 714 states have internal predecessors, (968), 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 02:22:06,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 715 states to 715 states and 968 transitions. [2023-11-29 02:22:06,741 INFO L78 Accepts]: Start accepts. Automaton has 715 states and 968 transitions. Word has length 125 [2023-11-29 02:22:06,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:22:06,741 INFO L495 AbstractCegarLoop]: Abstraction has 715 states and 968 transitions. [2023-11-29 02:22:06,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 2 states have internal predecessors, (125), 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 02:22:06,742 INFO L276 IsEmpty]: Start isEmpty. Operand 715 states and 968 transitions. [2023-11-29 02:22:06,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-11-29 02:22:06,745 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:22:06,745 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, 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] [2023-11-29 02:22:06,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 02:22:06,746 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:22:06,746 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:22:06,747 INFO L85 PathProgramCache]: Analyzing trace with hash 1102716484, now seen corresponding path program 1 times [2023-11-29 02:22:06,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:22:06,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150817093] [2023-11-29 02:22:06,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:22:06,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:22:06,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:22:07,039 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:22:07,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:22:07,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150817093] [2023-11-29 02:22:07,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150817093] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:22:07,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:22:07,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:22:07,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085591539] [2023-11-29 02:22:07,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:22:07,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 02:22:07,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:22:07,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 02:22:07,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:22:07,043 INFO L87 Difference]: Start difference. First operand 715 states and 968 transitions. Second operand has 4 states, 4 states have (on average 32.25) internal successors, (129), 3 states have internal predecessors, (129), 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 02:22:08,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:22:08,041 INFO L93 Difference]: Finished difference Result 1965 states and 2574 transitions. [2023-11-29 02:22:08,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 02:22:08,042 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 3 states have internal predecessors, (129), 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 129 [2023-11-29 02:22:08,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:22:08,049 INFO L225 Difference]: With dead ends: 1965 [2023-11-29 02:22:08,049 INFO L226 Difference]: Without dead ends: 1251 [2023-11-29 02:22:08,050 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:22:08,052 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 420 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 979 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 420 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 1020 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 979 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 02:22:08,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [420 Valid, 121 Invalid, 1020 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 979 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 02:22:08,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1251 states. [2023-11-29 02:22:08,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1251 to 1249. [2023-11-29 02:22:08,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1249 states, 1248 states have (on average 1.2379807692307692) internal successors, (1545), 1248 states have internal predecessors, (1545), 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 02:22:08,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1249 states to 1249 states and 1545 transitions. [2023-11-29 02:22:08,089 INFO L78 Accepts]: Start accepts. Automaton has 1249 states and 1545 transitions. Word has length 129 [2023-11-29 02:22:08,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:22:08,089 INFO L495 AbstractCegarLoop]: Abstraction has 1249 states and 1545 transitions. [2023-11-29 02:22:08,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 3 states have internal predecessors, (129), 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 02:22:08,090 INFO L276 IsEmpty]: Start isEmpty. Operand 1249 states and 1545 transitions. [2023-11-29 02:22:08,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2023-11-29 02:22:08,096 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:22:08,096 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, 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, 1, 1, 1, 1, 1, 1] [2023-11-29 02:22:08,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 02:22:08,097 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:22:08,097 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:22:08,098 INFO L85 PathProgramCache]: Analyzing trace with hash -476747055, now seen corresponding path program 1 times [2023-11-29 02:22:08,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:22:08,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803080020] [2023-11-29 02:22:08,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:22:08,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:22:08,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:22:08,392 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 155 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-29 02:22:08,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:22:08,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803080020] [2023-11-29 02:22:08,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803080020] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:22:08,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:22:08,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:22:08,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977614918] [2023-11-29 02:22:08,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:22:08,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 02:22:08,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:22:08,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 02:22:08,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:22:08,396 INFO L87 Difference]: Start difference. First operand 1249 states and 1545 transitions. Second operand has 4 states, 4 states have (on average 47.5) internal successors, (190), 3 states have internal predecessors, (190), 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 02:22:09,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:22:09,173 INFO L93 Difference]: Finished difference Result 2706 states and 3358 transitions. [2023-11-29 02:22:09,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 02:22:09,174 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.5) internal successors, (190), 3 states have internal predecessors, (190), 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 209 [2023-11-29 02:22:09,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:22:09,182 INFO L225 Difference]: With dead ends: 2706 [2023-11-29 02:22:09,182 INFO L226 Difference]: Without dead ends: 1607 [2023-11-29 02:22:09,184 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 02:22:09,185 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 104 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 739 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 739 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 02:22:09,186 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 119 Invalid, 805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 739 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 02:22:09,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1607 states. [2023-11-29 02:22:09,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1607 to 1605. [2023-11-29 02:22:09,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1605 states, 1604 states have (on average 1.124064837905237) internal successors, (1803), 1604 states have internal predecessors, (1803), 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 02:22:09,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1605 states to 1605 states and 1803 transitions. [2023-11-29 02:22:09,229 INFO L78 Accepts]: Start accepts. Automaton has 1605 states and 1803 transitions. Word has length 209 [2023-11-29 02:22:09,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:22:09,230 INFO L495 AbstractCegarLoop]: Abstraction has 1605 states and 1803 transitions. [2023-11-29 02:22:09,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.5) internal successors, (190), 3 states have internal predecessors, (190), 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 02:22:09,231 INFO L276 IsEmpty]: Start isEmpty. Operand 1605 states and 1803 transitions. [2023-11-29 02:22:09,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2023-11-29 02:22:09,237 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:22:09,237 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, 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, 2, 2, 2, 2, 2, 2, 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] [2023-11-29 02:22:09,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 02:22:09,237 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:22:09,238 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:22:09,238 INFO L85 PathProgramCache]: Analyzing trace with hash -1330789579, now seen corresponding path program 1 times [2023-11-29 02:22:09,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:22:09,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839808116] [2023-11-29 02:22:09,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:22:09,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:22:09,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:22:09,851 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 194 proven. 130 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2023-11-29 02:22:09,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:22:09,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839808116] [2023-11-29 02:22:09,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839808116] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:22:09,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [631723170] [2023-11-29 02:22:09,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:22:09,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:22:09,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a44795b-3219-42b6-8fe2-0ccfa3674b9d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:22:09,856 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a44795b-3219-42b6-8fe2-0ccfa3674b9d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:22:09,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a44795b-3219-42b6-8fe2-0ccfa3674b9d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 02:22:10,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:22:10,032 INFO L262 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 02:22:10,046 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:22:10,444 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2023-11-29 02:22:10,445 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:22:10,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [631723170] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:22:10,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:22:10,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-11-29 02:22:10,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449240328] [2023-11-29 02:22:10,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:22:10,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:22:10,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:22:10,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:22:10,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-29 02:22:10,449 INFO L87 Difference]: Start difference. First operand 1605 states and 1803 transitions. Second operand has 3 states, 3 states have (on average 53.0) internal successors, (159), 2 states have internal predecessors, (159), 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 02:22:11,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:22:11,045 INFO L93 Difference]: Finished difference Result 3387 states and 3906 transitions. [2023-11-29 02:22:11,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:22:11,046 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 2 states have internal predecessors, (159), 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 336 [2023-11-29 02:22:11,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:22:11,057 INFO L225 Difference]: With dead ends: 3387 [2023-11-29 02:22:11,058 INFO L226 Difference]: Without dead ends: 1961 [2023-11-29 02:22:11,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 335 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-29 02:22:11,061 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 82 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 02:22:11,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 45 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 02:22:11,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1961 states. [2023-11-29 02:22:11,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1961 to 1961. [2023-11-29 02:22:11,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1961 states, 1960 states have (on average 1.1224489795918366) internal successors, (2200), 1960 states have internal predecessors, (2200), 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 02:22:11,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1961 states to 1961 states and 2200 transitions. [2023-11-29 02:22:11,115 INFO L78 Accepts]: Start accepts. Automaton has 1961 states and 2200 transitions. Word has length 336 [2023-11-29 02:22:11,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:22:11,116 INFO L495 AbstractCegarLoop]: Abstraction has 1961 states and 2200 transitions. [2023-11-29 02:22:11,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 2 states have internal predecessors, (159), 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 02:22:11,117 INFO L276 IsEmpty]: Start isEmpty. Operand 1961 states and 2200 transitions. [2023-11-29 02:22:11,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2023-11-29 02:22:11,137 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:22:11,138 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:22:11,145 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a44795b-3219-42b6-8fe2-0ccfa3674b9d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 02:22:11,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a44795b-3219-42b6-8fe2-0ccfa3674b9d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:22:11,339 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:22:11,339 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:22:11,340 INFO L85 PathProgramCache]: Analyzing trace with hash 1782628863, now seen corresponding path program 1 times [2023-11-29 02:22:11,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:22:11,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209962201] [2023-11-29 02:22:11,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:22:11,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:22:11,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:22:11,767 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 303 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2023-11-29 02:22:11,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:22:11,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209962201] [2023-11-29 02:22:11,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209962201] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:22:11,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:22:11,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:22:11,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691143378] [2023-11-29 02:22:11,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:22:11,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:22:11,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:22:11,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:22:11,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:22:11,771 INFO L87 Difference]: Start difference. First operand 1961 states and 2200 transitions. Second operand has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 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 02:22:12,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:22:12,322 INFO L93 Difference]: Finished difference Result 4099 states and 4647 transitions. [2023-11-29 02:22:12,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:22:12,323 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 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 340 [2023-11-29 02:22:12,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:22:12,335 INFO L225 Difference]: With dead ends: 4099 [2023-11-29 02:22:12,335 INFO L226 Difference]: Without dead ends: 2317 [2023-11-29 02:22:12,338 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 02:22:12,338 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 100 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 02:22:12,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 75 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 470 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 02:22:12,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2317 states. [2023-11-29 02:22:12,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2317 to 2317. [2023-11-29 02:22:12,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2317 states, 2316 states have (on average 1.1204663212435233) internal successors, (2595), 2316 states have internal predecessors, (2595), 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 02:22:12,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2317 states to 2317 states and 2595 transitions. [2023-11-29 02:22:12,394 INFO L78 Accepts]: Start accepts. Automaton has 2317 states and 2595 transitions. Word has length 340 [2023-11-29 02:22:12,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:22:12,395 INFO L495 AbstractCegarLoop]: Abstraction has 2317 states and 2595 transitions. [2023-11-29 02:22:12,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 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 02:22:12,395 INFO L276 IsEmpty]: Start isEmpty. Operand 2317 states and 2595 transitions. [2023-11-29 02:22:12,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2023-11-29 02:22:12,401 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:22:12,401 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, 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, 2, 2, 1, 1, 1, 1] [2023-11-29 02:22:12,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 02:22:12,402 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:22:12,402 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:22:12,402 INFO L85 PathProgramCache]: Analyzing trace with hash 77554789, now seen corresponding path program 1 times [2023-11-29 02:22:12,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:22:12,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088826569] [2023-11-29 02:22:12,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:22:12,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:22:12,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:22:12,913 INFO L134 CoverageAnalysis]: Checked inductivity of 460 backedges. 0 proven. 148 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-29 02:22:12,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:22:12,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088826569] [2023-11-29 02:22:12,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088826569] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:22:12,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1535170314] [2023-11-29 02:22:12,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:22:12,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:22:12,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a44795b-3219-42b6-8fe2-0ccfa3674b9d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:22:12,915 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a44795b-3219-42b6-8fe2-0ccfa3674b9d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:22:12,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a44795b-3219-42b6-8fe2-0ccfa3674b9d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 02:22:13,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:22:13,079 INFO L262 TraceCheckSpWp]: Trace formula consists of 481 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 02:22:13,088 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:22:13,503 INFO L134 CoverageAnalysis]: Checked inductivity of 460 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 460 trivial. 0 not checked. [2023-11-29 02:22:13,503 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:22:13,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1535170314] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:22:13,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:22:13,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2023-11-29 02:22:13,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125966304] [2023-11-29 02:22:13,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:22:13,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:22:13,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:22:13,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:22:13,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:22:13,507 INFO L87 Difference]: Start difference. First operand 2317 states and 2595 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 02:22:13,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:22:13,974 INFO L93 Difference]: Finished difference Result 2853 states and 3201 transitions. [2023-11-29 02:22:13,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:22:13,975 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 367 [2023-11-29 02:22:13,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:22:13,986 INFO L225 Difference]: With dead ends: 2853 [2023-11-29 02:22:13,986 INFO L226 Difference]: Without dead ends: 2851 [2023-11-29 02:22:13,986 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 369 GetRequests, 366 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:22:13,987 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 90 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 02:22:13,987 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 22 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 487 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 02:22:13,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2851 states. [2023-11-29 02:22:14,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2851 to 2495. [2023-11-29 02:22:14,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2495 states, 2494 states have (on average 1.1255012028869287) internal successors, (2807), 2494 states have internal predecessors, (2807), 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 02:22:14,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2495 states to 2495 states and 2807 transitions. [2023-11-29 02:22:14,029 INFO L78 Accepts]: Start accepts. Automaton has 2495 states and 2807 transitions. Word has length 367 [2023-11-29 02:22:14,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:22:14,030 INFO L495 AbstractCegarLoop]: Abstraction has 2495 states and 2807 transitions. [2023-11-29 02:22:14,030 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 02:22:14,030 INFO L276 IsEmpty]: Start isEmpty. Operand 2495 states and 2807 transitions. [2023-11-29 02:22:14,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 421 [2023-11-29 02:22:14,034 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:22:14,035 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:22:14,040 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a44795b-3219-42b6-8fe2-0ccfa3674b9d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 02:22:14,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a44795b-3219-42b6-8fe2-0ccfa3674b9d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:22:14,240 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:22:14,241 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:22:14,241 INFO L85 PathProgramCache]: Analyzing trace with hash 1249894540, now seen corresponding path program 1 times [2023-11-29 02:22:14,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:22:14,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152337024] [2023-11-29 02:22:14,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:22:14,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:22:14,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:22:14,565 INFO L134 CoverageAnalysis]: Checked inductivity of 694 backedges. 411 proven. 0 refuted. 0 times theorem prover too weak. 283 trivial. 0 not checked. [2023-11-29 02:22:14,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:22:14,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152337024] [2023-11-29 02:22:14,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152337024] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:22:14,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:22:14,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:22:14,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378946400] [2023-11-29 02:22:14,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:22:14,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 02:22:14,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:22:14,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 02:22:14,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:22:14,568 INFO L87 Difference]: Start difference. First operand 2495 states and 2807 transitions. Second operand has 4 states, 4 states have (on average 54.75) internal successors, (219), 3 states have internal predecessors, (219), 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 02:22:15,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:22:15,068 INFO L93 Difference]: Finished difference Result 5047 states and 5688 transitions. [2023-11-29 02:22:15,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 02:22:15,069 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 54.75) internal successors, (219), 3 states have internal predecessors, (219), 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 420 [2023-11-29 02:22:15,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:22:15,079 INFO L225 Difference]: With dead ends: 5047 [2023-11-29 02:22:15,079 INFO L226 Difference]: Without dead ends: 2673 [2023-11-29 02:22:15,081 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 02:22:15,082 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 124 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 687 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 687 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 02:22:15,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 14 Invalid, 726 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 687 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 02:22:15,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2673 states. [2023-11-29 02:22:15,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2673 to 2495. [2023-11-29 02:22:15,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2495 states, 2494 states have (on average 1.0850040096230955) internal successors, (2706), 2494 states have internal predecessors, (2706), 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 02:22:15,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2495 states to 2495 states and 2706 transitions. [2023-11-29 02:22:15,119 INFO L78 Accepts]: Start accepts. Automaton has 2495 states and 2706 transitions. Word has length 420 [2023-11-29 02:22:15,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:22:15,120 INFO L495 AbstractCegarLoop]: Abstraction has 2495 states and 2706 transitions. [2023-11-29 02:22:15,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.75) internal successors, (219), 3 states have internal predecessors, (219), 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 02:22:15,121 INFO L276 IsEmpty]: Start isEmpty. Operand 2495 states and 2706 transitions. [2023-11-29 02:22:15,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 447 [2023-11-29 02:22:15,126 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:22:15,126 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, 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, 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, 1, 1, 1, 1, 1] [2023-11-29 02:22:15,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-29 02:22:15,127 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:22:15,127 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:22:15,127 INFO L85 PathProgramCache]: Analyzing trace with hash 2083635307, now seen corresponding path program 2 times [2023-11-29 02:22:15,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:22:15,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357643151] [2023-11-29 02:22:15,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:22:15,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:22:15,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:22:15,875 INFO L134 CoverageAnalysis]: Checked inductivity of 745 backedges. 445 proven. 195 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-11-29 02:22:15,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:22:15,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357643151] [2023-11-29 02:22:15,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357643151] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:22:15,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2089903915] [2023-11-29 02:22:15,876 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 02:22:15,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:22:15,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a44795b-3219-42b6-8fe2-0ccfa3674b9d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:22:15,877 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a44795b-3219-42b6-8fe2-0ccfa3674b9d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:22:15,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a44795b-3219-42b6-8fe2-0ccfa3674b9d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 02:22:16,056 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 02:22:16,056 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 02:22:16,058 INFO L262 TraceCheckSpWp]: Trace formula consists of 580 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 02:22:16,065 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:22:16,651 INFO L134 CoverageAnalysis]: Checked inductivity of 745 backedges. 431 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2023-11-29 02:22:16,651 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:22:16,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2089903915] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:22:16,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:22:16,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2023-11-29 02:22:16,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900923523] [2023-11-29 02:22:16,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:22:16,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 02:22:16,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:22:16,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 02:22:16,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-29 02:22:16,655 INFO L87 Difference]: Start difference. First operand 2495 states and 2706 transitions. Second operand has 4 states, 4 states have (on average 59.5) internal successors, (238), 3 states have internal predecessors, (238), 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 02:22:17,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:22:17,444 INFO L93 Difference]: Finished difference Result 5523 states and 6044 transitions. [2023-11-29 02:22:17,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 02:22:17,445 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 59.5) internal successors, (238), 3 states have internal predecessors, (238), 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 446 [2023-11-29 02:22:17,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:22:17,459 INFO L225 Difference]: With dead ends: 5523 [2023-11-29 02:22:17,459 INFO L226 Difference]: Without dead ends: 3207 [2023-11-29 02:22:17,462 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 450 GetRequests, 444 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-29 02:22:17,463 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 264 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 642 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 642 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 02:22:17,463 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 12 Invalid, 711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 642 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 02:22:17,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3207 states. [2023-11-29 02:22:17,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3207 to 2851. [2023-11-29 02:22:17,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2851 states, 2850 states have (on average 1.0771929824561404) internal successors, (3070), 2850 states have internal predecessors, (3070), 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 02:22:17,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2851 states to 2851 states and 3070 transitions. [2023-11-29 02:22:17,525 INFO L78 Accepts]: Start accepts. Automaton has 2851 states and 3070 transitions. Word has length 446 [2023-11-29 02:22:17,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:22:17,526 INFO L495 AbstractCegarLoop]: Abstraction has 2851 states and 3070 transitions. [2023-11-29 02:22:17,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 59.5) internal successors, (238), 3 states have internal predecessors, (238), 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 02:22:17,526 INFO L276 IsEmpty]: Start isEmpty. Operand 2851 states and 3070 transitions. [2023-11-29 02:22:17,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 454 [2023-11-29 02:22:17,530 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:22:17,531 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:22:17,537 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a44795b-3219-42b6-8fe2-0ccfa3674b9d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 02:22:17,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a44795b-3219-42b6-8fe2-0ccfa3674b9d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-29 02:22:17,732 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:22:17,733 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:22:17,733 INFO L85 PathProgramCache]: Analyzing trace with hash -904553668, now seen corresponding path program 1 times [2023-11-29 02:22:17,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:22:17,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906688404] [2023-11-29 02:22:17,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:22:17,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:22:17,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:22:18,225 INFO L134 CoverageAnalysis]: Checked inductivity of 745 backedges. 431 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2023-11-29 02:22:18,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:22:18,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906688404] [2023-11-29 02:22:18,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906688404] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:22:18,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:22:18,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:22:18,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291390851] [2023-11-29 02:22:18,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:22:18,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:22:18,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:22:18,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:22:18,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:22:18,228 INFO L87 Difference]: Start difference. First operand 2851 states and 3070 transitions. Second operand has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 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 02:22:18,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:22:18,708 INFO L93 Difference]: Finished difference Result 6057 states and 6600 transitions. [2023-11-29 02:22:18,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:22:18,708 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 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 453 [2023-11-29 02:22:18,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:22:18,722 INFO L225 Difference]: With dead ends: 6057 [2023-11-29 02:22:18,722 INFO L226 Difference]: Without dead ends: 3385 [2023-11-29 02:22:18,725 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 02:22:18,726 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 103 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 02:22:18,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 217 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 426 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 02:22:18,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3385 states. [2023-11-29 02:22:18,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3385 to 3207. [2023-11-29 02:22:18,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3207 states, 3206 states have (on average 1.0795383655645665) internal successors, (3461), 3206 states have internal predecessors, (3461), 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 02:22:18,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3207 states to 3207 states and 3461 transitions. [2023-11-29 02:22:18,793 INFO L78 Accepts]: Start accepts. Automaton has 3207 states and 3461 transitions. Word has length 453 [2023-11-29 02:22:18,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:22:18,794 INFO L495 AbstractCegarLoop]: Abstraction has 3207 states and 3461 transitions. [2023-11-29 02:22:18,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 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 02:22:18,794 INFO L276 IsEmpty]: Start isEmpty. Operand 3207 states and 3461 transitions. [2023-11-29 02:22:18,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 499 [2023-11-29 02:22:18,799 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:22:18,800 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:22:18,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-29 02:22:18,800 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:22:18,800 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:22:18,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1822843945, now seen corresponding path program 1 times [2023-11-29 02:22:18,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:22:18,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307224041] [2023-11-29 02:22:18,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:22:18,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:22:18,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:22:19,682 INFO L134 CoverageAnalysis]: Checked inductivity of 745 backedges. 445 proven. 195 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-11-29 02:22:19,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:22:19,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307224041] [2023-11-29 02:22:19,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307224041] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:22:19,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2026183489] [2023-11-29 02:22:19,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:22:19,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:22:19,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a44795b-3219-42b6-8fe2-0ccfa3674b9d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:22:19,684 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a44795b-3219-42b6-8fe2-0ccfa3674b9d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:22:19,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a44795b-3219-42b6-8fe2-0ccfa3674b9d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 02:22:19,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:22:19,882 INFO L262 TraceCheckSpWp]: Trace formula consists of 632 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 02:22:19,890 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:22:19,968 INFO L134 CoverageAnalysis]: Checked inductivity of 745 backedges. 195 proven. 0 refuted. 0 times theorem prover too weak. 550 trivial. 0 not checked. [2023-11-29 02:22:19,968 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:22:19,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2026183489] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:22:19,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:22:19,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2023-11-29 02:22:19,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061154685] [2023-11-29 02:22:19,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:22:19,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:22:19,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:22:19,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:22:19,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:22:19,971 INFO L87 Difference]: Start difference. First operand 3207 states and 3461 transitions. Second operand has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 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 02:22:20,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:22:20,405 INFO L93 Difference]: Finished difference Result 3921 states and 4227 transitions. [2023-11-29 02:22:20,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:22:20,406 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 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 498 [2023-11-29 02:22:20,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:22:20,421 INFO L225 Difference]: With dead ends: 3921 [2023-11-29 02:22:20,421 INFO L226 Difference]: Without dead ends: 3919 [2023-11-29 02:22:20,422 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 502 GetRequests, 497 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:22:20,423 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 150 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 02:22:20,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 9 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 425 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 02:22:20,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3919 states. [2023-11-29 02:22:20,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3919 to 3207. [2023-11-29 02:22:20,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3207 states, 3206 states have (on average 1.0795383655645665) internal successors, (3461), 3206 states have internal predecessors, (3461), 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 02:22:20,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3207 states to 3207 states and 3461 transitions. [2023-11-29 02:22:20,473 INFO L78 Accepts]: Start accepts. Automaton has 3207 states and 3461 transitions. Word has length 498 [2023-11-29 02:22:20,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:22:20,473 INFO L495 AbstractCegarLoop]: Abstraction has 3207 states and 3461 transitions. [2023-11-29 02:22:20,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 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 02:22:20,474 INFO L276 IsEmpty]: Start isEmpty. Operand 3207 states and 3461 transitions. [2023-11-29 02:22:20,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 641 [2023-11-29 02:22:20,479 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:22:20,479 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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 02:22:20,484 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a44795b-3219-42b6-8fe2-0ccfa3674b9d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 02:22:20,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a44795b-3219-42b6-8fe2-0ccfa3674b9d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:22:20,680 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:22:20,680 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:22:20,680 INFO L85 PathProgramCache]: Analyzing trace with hash -1139076533, now seen corresponding path program 1 times [2023-11-29 02:22:20,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:22:20,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859790928] [2023-11-29 02:22:20,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:22:20,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:22:20,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:22:21,445 INFO L134 CoverageAnalysis]: Checked inductivity of 1273 backedges. 924 proven. 195 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2023-11-29 02:22:21,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:22:21,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859790928] [2023-11-29 02:22:21,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859790928] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:22:21,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [578824591] [2023-11-29 02:22:21,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:22:21,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:22:21,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a44795b-3219-42b6-8fe2-0ccfa3674b9d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:22:21,447 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a44795b-3219-42b6-8fe2-0ccfa3674b9d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:22:21,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a44795b-3219-42b6-8fe2-0ccfa3674b9d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 02:22:21,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:22:21,664 INFO L262 TraceCheckSpWp]: Trace formula consists of 796 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 02:22:21,670 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:22:21,767 INFO L134 CoverageAnalysis]: Checked inductivity of 1273 backedges. 244 proven. 0 refuted. 0 times theorem prover too weak. 1029 trivial. 0 not checked. [2023-11-29 02:22:21,767 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:22:21,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [578824591] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:22:21,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:22:21,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2023-11-29 02:22:21,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287959217] [2023-11-29 02:22:21,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:22:21,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:22:21,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:22:21,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:22:21,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:22:21,770 INFO L87 Difference]: Start difference. First operand 3207 states and 3461 transitions. Second operand has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 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 02:22:22,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:22:22,253 INFO L93 Difference]: Finished difference Result 7125 states and 7764 transitions. [2023-11-29 02:22:22,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:22:22,254 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 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 640 [2023-11-29 02:22:22,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:22:22,274 INFO L225 Difference]: With dead ends: 7125 [2023-11-29 02:22:22,274 INFO L226 Difference]: Without dead ends: 4275 [2023-11-29 02:22:22,277 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 644 GetRequests, 639 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:22:22,278 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 140 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 02:22:22,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 213 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 430 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 02:22:22,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4275 states. [2023-11-29 02:22:22,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4275 to 4097. [2023-11-29 02:22:22,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4097 states, 4096 states have (on average 1.078125) internal successors, (4416), 4096 states have internal predecessors, (4416), 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 02:22:22,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4097 states to 4097 states and 4416 transitions. [2023-11-29 02:22:22,350 INFO L78 Accepts]: Start accepts. Automaton has 4097 states and 4416 transitions. Word has length 640 [2023-11-29 02:22:22,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:22:22,351 INFO L495 AbstractCegarLoop]: Abstraction has 4097 states and 4416 transitions. [2023-11-29 02:22:22,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 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 02:22:22,352 INFO L276 IsEmpty]: Start isEmpty. Operand 4097 states and 4416 transitions. [2023-11-29 02:22:22,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 671 [2023-11-29 02:22:22,361 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:22:22,361 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, 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, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 02:22:22,368 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a44795b-3219-42b6-8fe2-0ccfa3674b9d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-29 02:22:22,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a44795b-3219-42b6-8fe2-0ccfa3674b9d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:22:22,562 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:22:22,563 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:22:22,563 INFO L85 PathProgramCache]: Analyzing trace with hash 722164790, now seen corresponding path program 1 times [2023-11-29 02:22:22,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:22:22,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715111852] [2023-11-29 02:22:22,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:22:22,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:22:22,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:22:23,277 INFO L134 CoverageAnalysis]: Checked inductivity of 1354 backedges. 1005 proven. 195 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2023-11-29 02:22:23,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:22:23,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715111852] [2023-11-29 02:22:23,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715111852] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:22:23,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [893084338] [2023-11-29 02:22:23,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:22:23,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:22:23,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a44795b-3219-42b6-8fe2-0ccfa3674b9d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:22:23,278 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a44795b-3219-42b6-8fe2-0ccfa3674b9d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:22:23,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a44795b-3219-42b6-8fe2-0ccfa3674b9d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 02:22:23,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:22:23,477 INFO L262 TraceCheckSpWp]: Trace formula consists of 827 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 02:22:23,482 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:22:23,993 INFO L134 CoverageAnalysis]: Checked inductivity of 1354 backedges. 655 proven. 0 refuted. 0 times theorem prover too weak. 699 trivial. 0 not checked. [2023-11-29 02:22:23,993 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:22:23,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [893084338] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:22:23,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:22:23,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2023-11-29 02:22:23,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24501643] [2023-11-29 02:22:23,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:22:23,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:22:23,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:22:23,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:22:23,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:22:23,996 INFO L87 Difference]: Start difference. First operand 4097 states and 4416 transitions. Second operand has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 2 states have internal predecessors, (289), 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 02:22:24,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:22:24,502 INFO L93 Difference]: Finished difference Result 8905 states and 9615 transitions. [2023-11-29 02:22:24,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:22:24,503 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 2 states have internal predecessors, (289), 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 670 [2023-11-29 02:22:24,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:22:24,519 INFO L225 Difference]: With dead ends: 8905 [2023-11-29 02:22:24,520 INFO L226 Difference]: Without dead ends: 5165 [2023-11-29 02:22:24,523 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 674 GetRequests, 669 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:22:24,524 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 27 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 02:22:24,525 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 48 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 02:22:24,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5165 states. [2023-11-29 02:22:24,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5165 to 4631. [2023-11-29 02:22:24,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4631 states, 4630 states have (on average 1.0773218142548595) internal successors, (4988), 4630 states have internal predecessors, (4988), 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 02:22:24,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4631 states to 4631 states and 4988 transitions. [2023-11-29 02:22:24,641 INFO L78 Accepts]: Start accepts. Automaton has 4631 states and 4988 transitions. Word has length 670 [2023-11-29 02:22:24,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:22:24,642 INFO L495 AbstractCegarLoop]: Abstraction has 4631 states and 4988 transitions. [2023-11-29 02:22:24,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 2 states have internal predecessors, (289), 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 02:22:24,643 INFO L276 IsEmpty]: Start isEmpty. Operand 4631 states and 4988 transitions. [2023-11-29 02:22:24,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 675 [2023-11-29 02:22:24,659 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:22:24,659 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, 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, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:22:24,666 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a44795b-3219-42b6-8fe2-0ccfa3674b9d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 02:22:24,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a44795b-3219-42b6-8fe2-0ccfa3674b9d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-29 02:22:24,860 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:22:24,860 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:22:24,861 INFO L85 PathProgramCache]: Analyzing trace with hash 30801687, now seen corresponding path program 1 times [2023-11-29 02:22:24,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:22:24,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71169014] [2023-11-29 02:22:24,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:22:24,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:22:24,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:22:25,173 INFO L134 CoverageAnalysis]: Checked inductivity of 1329 backedges. 966 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2023-11-29 02:22:25,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:22:25,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71169014] [2023-11-29 02:22:25,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71169014] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:22:25,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:22:25,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:22:25,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579760583] [2023-11-29 02:22:25,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:22:25,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:22:25,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:22:25,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:22:25,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:22:25,176 INFO L87 Difference]: Start difference. First operand 4631 states and 4988 transitions. Second operand has 3 states, 3 states have (on average 139.33333333333334) internal successors, (418), 3 states have internal predecessors, (418), 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 02:22:25,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:22:25,609 INFO L93 Difference]: Finished difference Result 9617 states and 10428 transitions. [2023-11-29 02:22:25,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:22:25,610 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 139.33333333333334) internal successors, (418), 3 states have internal predecessors, (418), 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 674 [2023-11-29 02:22:25,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:22:25,619 INFO L225 Difference]: With dead ends: 9617 [2023-11-29 02:22:25,619 INFO L226 Difference]: Without dead ends: 5343 [2023-11-29 02:22:25,623 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 02:22:25,624 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 8 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 02:22:25,624 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 48 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 02:22:25,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5343 states. [2023-11-29 02:22:25,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5343 to 5343. [2023-11-29 02:22:25,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5343 states, 5342 states have (on average 1.0733807562710596) internal successors, (5734), 5342 states have internal predecessors, (5734), 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 02:22:25,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5343 states to 5343 states and 5734 transitions. [2023-11-29 02:22:25,691 INFO L78 Accepts]: Start accepts. Automaton has 5343 states and 5734 transitions. Word has length 674 [2023-11-29 02:22:25,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:22:25,692 INFO L495 AbstractCegarLoop]: Abstraction has 5343 states and 5734 transitions. [2023-11-29 02:22:25,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 139.33333333333334) internal successors, (418), 3 states have internal predecessors, (418), 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 02:22:25,692 INFO L276 IsEmpty]: Start isEmpty. Operand 5343 states and 5734 transitions. [2023-11-29 02:22:25,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 688 [2023-11-29 02:22:25,699 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:22:25,700 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, 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, 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, 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] [2023-11-29 02:22:25,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-29 02:22:25,700 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:22:25,700 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:22:25,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1549986123, now seen corresponding path program 1 times [2023-11-29 02:22:25,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:22:25,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750432150] [2023-11-29 02:22:25,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:22:25,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:22:25,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:22:26,152 INFO L134 CoverageAnalysis]: Checked inductivity of 1708 backedges. 1171 proven. 0 refuted. 0 times theorem prover too weak. 537 trivial. 0 not checked. [2023-11-29 02:22:26,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:22:26,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750432150] [2023-11-29 02:22:26,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750432150] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:22:26,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:22:26,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:22:26,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944225355] [2023-11-29 02:22:26,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:22:26,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:22:26,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:22:26,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:22:26,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:22:26,155 INFO L87 Difference]: Start difference. First operand 5343 states and 5734 transitions. Second operand has 3 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 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 02:22:26,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:22:26,545 INFO L93 Difference]: Finished difference Result 10507 states and 11288 transitions. [2023-11-29 02:22:26,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:22:26,546 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 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 687 [2023-11-29 02:22:26,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:22:26,552 INFO L225 Difference]: With dead ends: 10507 [2023-11-29 02:22:26,552 INFO L226 Difference]: Without dead ends: 5343 [2023-11-29 02:22:26,556 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 02:22:26,556 INFO L413 NwaCegarLoop]: 238 mSDtfsCounter, 111 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 02:22:26,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 241 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 02:22:26,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5343 states. [2023-11-29 02:22:26,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5343 to 4631. [2023-11-29 02:22:26,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4631 states, 4630 states have (on average 1.0796976241900649) internal successors, (4999), 4630 states have internal predecessors, (4999), 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 02:22:26,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4631 states to 4631 states and 4999 transitions. [2023-11-29 02:22:26,608 INFO L78 Accepts]: Start accepts. Automaton has 4631 states and 4999 transitions. Word has length 687 [2023-11-29 02:22:26,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:22:26,608 INFO L495 AbstractCegarLoop]: Abstraction has 4631 states and 4999 transitions. [2023-11-29 02:22:26,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 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 02:22:26,609 INFO L276 IsEmpty]: Start isEmpty. Operand 4631 states and 4999 transitions. [2023-11-29 02:22:26,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 772 [2023-11-29 02:22:26,615 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:22:26,616 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 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, 3, 3, 3, 3, 3, 3, 3, 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 02:22:26,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-29 02:22:26,616 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:22:26,616 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:22:26,616 INFO L85 PathProgramCache]: Analyzing trace with hash 2045363709, now seen corresponding path program 1 times [2023-11-29 02:22:26,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:22:26,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586872168] [2023-11-29 02:22:26,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:22:26,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:22:26,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:22:27,153 INFO L134 CoverageAnalysis]: Checked inductivity of 2224 backedges. 1618 proven. 0 refuted. 0 times theorem prover too weak. 606 trivial. 0 not checked. [2023-11-29 02:22:27,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:22:27,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586872168] [2023-11-29 02:22:27,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586872168] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:22:27,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:22:27,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:22:27,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445505428] [2023-11-29 02:22:27,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:22:27,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:22:27,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:22:27,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:22:27,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:22:27,156 INFO L87 Difference]: Start difference. First operand 4631 states and 4999 transitions. Second operand has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 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 02:22:27,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:22:27,588 INFO L93 Difference]: Finished difference Result 9259 states and 9998 transitions. [2023-11-29 02:22:27,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:22:27,589 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 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 771 [2023-11-29 02:22:27,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:22:27,589 INFO L225 Difference]: With dead ends: 9259 [2023-11-29 02:22:27,589 INFO L226 Difference]: Without dead ends: 0 [2023-11-29 02:22:27,595 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 02:22:27,595 INFO L413 NwaCegarLoop]: 234 mSDtfsCounter, 102 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 02:22:27,596 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 237 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 02:22:27,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-29 02:22:27,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-29 02:22:27,597 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 02:22:27,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-29 02:22:27,597 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 771 [2023-11-29 02:22:27,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:22:27,597 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 02:22:27,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 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 02:22:27,597 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-29 02:22:27,597 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-29 02:22:27,600 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-29 02:22:27,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-29 02:22:27,602 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-29 02:22:28,142 INFO L899 garLoopResultBuilder]: For program point L762(lines 762 880) no Hoare annotation was computed. [2023-11-29 02:22:28,142 INFO L899 garLoopResultBuilder]: For program point L895(line 895) no Hoare annotation was computed. [2023-11-29 02:22:28,142 INFO L899 garLoopResultBuilder]: For program point L829(lines 829 880) no Hoare annotation was computed. [2023-11-29 02:22:28,142 INFO L899 garLoopResultBuilder]: For program point L631(lines 631 880) no Hoare annotation was computed. [2023-11-29 02:22:28,142 INFO L899 garLoopResultBuilder]: For program point L565(lines 565 880) no Hoare annotation was computed. [2023-11-29 02:22:28,142 INFO L899 garLoopResultBuilder]: For program point L169-1(lines 30 882) no Hoare annotation was computed. [2023-11-29 02:22:28,142 INFO L899 garLoopResultBuilder]: For program point L103-1(lines 30 882) no Hoare annotation was computed. [2023-11-29 02:22:28,142 INFO L899 garLoopResultBuilder]: For program point L37-1(lines 30 882) no Hoare annotation was computed. [2023-11-29 02:22:28,142 INFO L899 garLoopResultBuilder]: For program point L698(lines 698 880) no Hoare annotation was computed. [2023-11-29 02:22:28,142 INFO L899 garLoopResultBuilder]: For program point L500(lines 500 880) no Hoare annotation was computed. [2023-11-29 02:22:28,143 INFO L899 garLoopResultBuilder]: For program point L369(lines 369 880) no Hoare annotation was computed. [2023-11-29 02:22:28,143 INFO L899 garLoopResultBuilder]: For program point L303(lines 303 880) no Hoare annotation was computed. [2023-11-29 02:22:28,143 INFO L899 garLoopResultBuilder]: For program point L436(lines 436 880) no Hoare annotation was computed. [2023-11-29 02:22:28,143 INFO L899 garLoopResultBuilder]: For program point L172-1(lines 30 882) no Hoare annotation was computed. [2023-11-29 02:22:28,143 INFO L899 garLoopResultBuilder]: For program point L106-1(lines 30 882) no Hoare annotation was computed. [2023-11-29 02:22:28,143 INFO L899 garLoopResultBuilder]: For program point L40-1(lines 30 882) no Hoare annotation was computed. [2023-11-29 02:22:28,143 INFO L899 garLoopResultBuilder]: For program point L239(lines 239 880) no Hoare annotation was computed. [2023-11-29 02:22:28,143 INFO L899 garLoopResultBuilder]: For program point L768(lines 768 880) no Hoare annotation was computed. [2023-11-29 02:22:28,143 INFO L899 garLoopResultBuilder]: For program point L636(lines 636 880) no Hoare annotation was computed. [2023-11-29 02:22:28,143 INFO L899 garLoopResultBuilder]: For program point L835(lines 835 880) no Hoare annotation was computed. [2023-11-29 02:22:28,143 INFO L899 garLoopResultBuilder]: For program point L571(lines 571 880) no Hoare annotation was computed. [2023-11-29 02:22:28,144 INFO L899 garLoopResultBuilder]: For program point L505(lines 505 880) no Hoare annotation was computed. [2023-11-29 02:22:28,148 INFO L899 garLoopResultBuilder]: For program point L175-1(lines 30 882) no Hoare annotation was computed. [2023-11-29 02:22:28,148 INFO L899 garLoopResultBuilder]: For program point L109-1(lines 30 882) no Hoare annotation was computed. [2023-11-29 02:22:28,148 INFO L899 garLoopResultBuilder]: For program point L43-1(lines 30 882) no Hoare annotation was computed. [2023-11-29 02:22:28,149 INFO L899 garLoopResultBuilder]: For program point L704(lines 704 880) no Hoare annotation was computed. [2023-11-29 02:22:28,149 INFO L899 garLoopResultBuilder]: For program point L309(lines 309 880) no Hoare annotation was computed. [2023-11-29 02:22:28,149 INFO L899 garLoopResultBuilder]: For program point L442(lines 442 880) no Hoare annotation was computed. [2023-11-29 02:22:28,149 INFO L899 garLoopResultBuilder]: For program point L376(lines 376 880) no Hoare annotation was computed. [2023-11-29 02:22:28,149 INFO L899 garLoopResultBuilder]: For program point L178-1(lines 30 882) no Hoare annotation was computed. [2023-11-29 02:22:28,149 INFO L899 garLoopResultBuilder]: For program point L112-1(lines 30 882) no Hoare annotation was computed. [2023-11-29 02:22:28,149 INFO L899 garLoopResultBuilder]: For program point L46-1(lines 30 882) no Hoare annotation was computed. [2023-11-29 02:22:28,149 INFO L899 garLoopResultBuilder]: For program point L245(lines 245 880) no Hoare annotation was computed. [2023-11-29 02:22:28,149 INFO L899 garLoopResultBuilder]: For program point L774(lines 774 880) no Hoare annotation was computed. [2023-11-29 02:22:28,149 INFO L899 garLoopResultBuilder]: For program point L642(lines 642 880) no Hoare annotation was computed. [2023-11-29 02:22:28,150 INFO L899 garLoopResultBuilder]: For program point L510(lines 510 880) no Hoare annotation was computed. [2023-11-29 02:22:28,150 INFO L899 garLoopResultBuilder]: For program point L841(lines 841 880) no Hoare annotation was computed. [2023-11-29 02:22:28,150 INFO L899 garLoopResultBuilder]: For program point L181-1(lines 30 882) no Hoare annotation was computed. [2023-11-29 02:22:28,150 INFO L899 garLoopResultBuilder]: For program point L115-1(lines 30 882) no Hoare annotation was computed. [2023-11-29 02:22:28,150 INFO L899 garLoopResultBuilder]: For program point L49-1(lines 30 882) no Hoare annotation was computed. [2023-11-29 02:22:28,150 INFO L899 garLoopResultBuilder]: For program point L710(lines 710 880) no Hoare annotation was computed. [2023-11-29 02:22:28,150 INFO L899 garLoopResultBuilder]: For program point L578(lines 578 880) no Hoare annotation was computed. [2023-11-29 02:22:28,150 INFO L899 garLoopResultBuilder]: For program point L315(lines 315 880) no Hoare annotation was computed. [2023-11-29 02:22:28,151 INFO L899 garLoopResultBuilder]: For program point L448(lines 448 880) no Hoare annotation was computed. [2023-11-29 02:22:28,151 INFO L899 garLoopResultBuilder]: For program point L382(lines 382 880) no Hoare annotation was computed. [2023-11-29 02:22:28,151 INFO L899 garLoopResultBuilder]: For program point L184-1(lines 30 882) no Hoare annotation was computed. [2023-11-29 02:22:28,151 INFO L899 garLoopResultBuilder]: For program point L118-1(lines 30 882) no Hoare annotation was computed. [2023-11-29 02:22:28,151 INFO L899 garLoopResultBuilder]: For program point L52-1(lines 30 882) no Hoare annotation was computed. [2023-11-29 02:22:28,151 INFO L899 garLoopResultBuilder]: For program point L251(lines 251 880) no Hoare annotation was computed. [2023-11-29 02:22:28,151 INFO L899 garLoopResultBuilder]: For program point L648(lines 648 880) no Hoare annotation was computed. [2023-11-29 02:22:28,152 INFO L899 garLoopResultBuilder]: For program point L516(lines 516 880) no Hoare annotation was computed. [2023-11-29 02:22:28,152 INFO L899 garLoopResultBuilder]: For program point L847(lines 847 880) no Hoare annotation was computed. [2023-11-29 02:22:28,152 INFO L899 garLoopResultBuilder]: For program point L781(lines 781 880) no Hoare annotation was computed. [2023-11-29 02:22:28,152 INFO L899 garLoopResultBuilder]: For program point L583(lines 583 880) no Hoare annotation was computed. [2023-11-29 02:22:28,152 INFO L899 garLoopResultBuilder]: For program point L187-1(lines 30 882) no Hoare annotation was computed. [2023-11-29 02:22:28,152 INFO L899 garLoopResultBuilder]: For program point L121-1(lines 30 882) no Hoare annotation was computed. [2023-11-29 02:22:28,152 INFO L899 garLoopResultBuilder]: For program point L55-1(lines 30 882) no Hoare annotation was computed. [2023-11-29 02:22:28,152 INFO L899 garLoopResultBuilder]: For program point L716(lines 716 880) no Hoare annotation was computed. [2023-11-29 02:22:28,153 INFO L899 garLoopResultBuilder]: For program point L321(lines 321 880) no Hoare annotation was computed. [2023-11-29 02:22:28,153 INFO L899 garLoopResultBuilder]: For program point L454(lines 454 880) no Hoare annotation was computed. [2023-11-29 02:22:28,153 INFO L899 garLoopResultBuilder]: For program point L388(lines 388 880) no Hoare annotation was computed. [2023-11-29 02:22:28,153 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-29 02:22:28,153 INFO L899 garLoopResultBuilder]: For program point L190-1(lines 30 882) no Hoare annotation was computed. [2023-11-29 02:22:28,153 INFO L899 garLoopResultBuilder]: For program point L124-1(lines 30 882) no Hoare annotation was computed. [2023-11-29 02:22:28,153 INFO L899 garLoopResultBuilder]: For program point L58-1(lines 30 882) no Hoare annotation was computed. [2023-11-29 02:22:28,153 INFO L899 garLoopResultBuilder]: For program point L257(lines 257 880) no Hoare annotation was computed. [2023-11-29 02:22:28,154 INFO L899 garLoopResultBuilder]: For program point L852(lines 852 880) no Hoare annotation was computed. [2023-11-29 02:22:28,154 INFO L899 garLoopResultBuilder]: For program point L654(lines 654 880) no Hoare annotation was computed. [2023-11-29 02:22:28,154 INFO L899 garLoopResultBuilder]: For program point L522(lines 522 880) no Hoare annotation was computed. [2023-11-29 02:22:28,154 INFO L899 garLoopResultBuilder]: For program point L787(lines 787 880) no Hoare annotation was computed. [2023-11-29 02:22:28,154 INFO L899 garLoopResultBuilder]: For program point L589(lines 589 880) no Hoare annotation was computed. [2023-11-29 02:22:28,154 INFO L899 garLoopResultBuilder]: For program point L193-1(lines 30 882) no Hoare annotation was computed. [2023-11-29 02:22:28,154 INFO L899 garLoopResultBuilder]: For program point L127-1(lines 30 882) no Hoare annotation was computed. [2023-11-29 02:22:28,154 INFO L899 garLoopResultBuilder]: For program point L61-1(lines 30 882) no Hoare annotation was computed. [2023-11-29 02:22:28,155 INFO L899 garLoopResultBuilder]: For program point L722(lines 722 880) no Hoare annotation was computed. [2023-11-29 02:22:28,155 INFO L899 garLoopResultBuilder]: For program point L459(lines 459 880) no Hoare annotation was computed. [2023-11-29 02:22:28,155 INFO L899 garLoopResultBuilder]: For program point L327(lines 327 880) no Hoare annotation was computed. [2023-11-29 02:22:28,155 INFO L899 garLoopResultBuilder]: For program point L394(lines 394 880) no Hoare annotation was computed. [2023-11-29 02:22:28,155 INFO L899 garLoopResultBuilder]: For program point L262(lines 262 880) no Hoare annotation was computed. [2023-11-29 02:22:28,155 INFO L899 garLoopResultBuilder]: For program point L196-1(lines 30 882) no Hoare annotation was computed. [2023-11-29 02:22:28,155 INFO L899 garLoopResultBuilder]: For program point L130-1(lines 30 882) no Hoare annotation was computed. [2023-11-29 02:22:28,155 INFO L899 garLoopResultBuilder]: For program point L64-1(lines 30 882) no Hoare annotation was computed. [2023-11-29 02:22:28,155 INFO L899 garLoopResultBuilder]: For program point L858(lines 858 880) no Hoare annotation was computed. [2023-11-29 02:22:28,156 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 167) no Hoare annotation was computed. [2023-11-29 02:22:28,156 INFO L899 garLoopResultBuilder]: For program point L660(lines 660 880) no Hoare annotation was computed. [2023-11-29 02:22:28,156 INFO L899 garLoopResultBuilder]: For program point L528(lines 528 880) no Hoare annotation was computed. [2023-11-29 02:22:28,156 INFO L899 garLoopResultBuilder]: For program point L793(lines 793 880) no Hoare annotation was computed. [2023-11-29 02:22:28,156 INFO L899 garLoopResultBuilder]: For program point L595(lines 595 880) no Hoare annotation was computed. [2023-11-29 02:22:28,156 INFO L899 garLoopResultBuilder]: For program point L199-1(lines 30 882) no Hoare annotation was computed. [2023-11-29 02:22:28,156 INFO L899 garLoopResultBuilder]: For program point L133-1(lines 30 882) no Hoare annotation was computed. [2023-11-29 02:22:28,157 INFO L899 garLoopResultBuilder]: For program point L67-1(lines 30 882) no Hoare annotation was computed. [2023-11-29 02:22:28,157 INFO L899 garLoopResultBuilder]: For program point L728(lines 728 880) no Hoare annotation was computed. [2023-11-29 02:22:28,157 INFO L899 garLoopResultBuilder]: For program point L464(lines 464 880) no Hoare annotation was computed. [2023-11-29 02:22:28,157 INFO L899 garLoopResultBuilder]: For program point L333(lines 333 880) no Hoare annotation was computed. [2023-11-29 02:22:28,157 INFO L899 garLoopResultBuilder]: For program point L400(lines 400 880) no Hoare annotation was computed. [2023-11-29 02:22:28,157 INFO L899 garLoopResultBuilder]: For program point L268(lines 268 880) no Hoare annotation was computed. [2023-11-29 02:22:28,157 INFO L899 garLoopResultBuilder]: For program point L202-1(lines 30 882) no Hoare annotation was computed. [2023-11-29 02:22:28,157 INFO L899 garLoopResultBuilder]: For program point L136-1(lines 30 882) no Hoare annotation was computed. [2023-11-29 02:22:28,158 INFO L899 garLoopResultBuilder]: For program point L70-1(lines 30 882) no Hoare annotation was computed. [2023-11-29 02:22:28,158 INFO L899 garLoopResultBuilder]: For program point L864(lines 864 880) no Hoare annotation was computed. [2023-11-29 02:22:28,158 INFO L899 garLoopResultBuilder]: For program point L666(lines 666 880) no Hoare annotation was computed. [2023-11-29 02:22:28,158 INFO L899 garLoopResultBuilder]: For program point L534(lines 534 880) no Hoare annotation was computed. [2023-11-29 02:22:28,158 INFO L899 garLoopResultBuilder]: For program point L799(lines 799 880) no Hoare annotation was computed. [2023-11-29 02:22:28,158 INFO L899 garLoopResultBuilder]: For program point L601(lines 601 880) no Hoare annotation was computed. [2023-11-29 02:22:28,158 INFO L899 garLoopResultBuilder]: For program point L205-1(lines 30 882) no Hoare annotation was computed. [2023-11-29 02:22:28,158 INFO L899 garLoopResultBuilder]: For program point L139-1(lines 30 882) no Hoare annotation was computed. [2023-11-29 02:22:28,158 INFO L899 garLoopResultBuilder]: For program point L73-1(lines 30 882) no Hoare annotation was computed. [2023-11-29 02:22:28,159 INFO L899 garLoopResultBuilder]: For program point L734(lines 734 880) no Hoare annotation was computed. [2023-11-29 02:22:28,159 INFO L899 garLoopResultBuilder]: For program point L470(lines 470 880) no Hoare annotation was computed. [2023-11-29 02:22:28,159 INFO L899 garLoopResultBuilder]: For program point L339(lines 339 880) no Hoare annotation was computed. [2023-11-29 02:22:28,159 INFO L899 garLoopResultBuilder]: For program point L406(lines 406 880) no Hoare annotation was computed. [2023-11-29 02:22:28,159 INFO L899 garLoopResultBuilder]: For program point L274(lines 274 880) no Hoare annotation was computed. [2023-11-29 02:22:28,159 INFO L899 garLoopResultBuilder]: For program point L208-1(lines 30 882) no Hoare annotation was computed. [2023-11-29 02:22:28,159 INFO L899 garLoopResultBuilder]: For program point L142-1(lines 30 882) no Hoare annotation was computed. [2023-11-29 02:22:28,159 INFO L899 garLoopResultBuilder]: For program point L76-1(lines 30 882) no Hoare annotation was computed. [2023-11-29 02:22:28,160 INFO L899 garLoopResultBuilder]: For program point L869(lines 869 880) no Hoare annotation was computed. [2023-11-29 02:22:28,160 INFO L899 garLoopResultBuilder]: For program point L672(lines 672 880) no Hoare annotation was computed. [2023-11-29 02:22:28,160 INFO L899 garLoopResultBuilder]: For program point L540(lines 540 880) no Hoare annotation was computed. [2023-11-29 02:22:28,160 INFO L899 garLoopResultBuilder]: For program point L805(lines 805 880) no Hoare annotation was computed. [2023-11-29 02:22:28,160 INFO L899 garLoopResultBuilder]: For program point L607(lines 607 880) no Hoare annotation was computed. [2023-11-29 02:22:28,160 INFO L899 garLoopResultBuilder]: For program point L211-1(lines 30 882) no Hoare annotation was computed. [2023-11-29 02:22:28,160 INFO L899 garLoopResultBuilder]: For program point L145-1(lines 30 882) no Hoare annotation was computed. [2023-11-29 02:22:28,160 INFO L899 garLoopResultBuilder]: For program point L79-1(lines 30 882) no Hoare annotation was computed. [2023-11-29 02:22:28,160 INFO L899 garLoopResultBuilder]: For program point L740(lines 740 880) no Hoare annotation was computed. [2023-11-29 02:22:28,161 INFO L899 garLoopResultBuilder]: For program point L477(lines 477 880) no Hoare annotation was computed. [2023-11-29 02:22:28,161 INFO L899 garLoopResultBuilder]: For program point L345(lines 345 880) no Hoare annotation was computed. [2023-11-29 02:22:28,161 INFO L899 garLoopResultBuilder]: For program point L279(lines 279 880) no Hoare annotation was computed. [2023-11-29 02:22:28,161 INFO L899 garLoopResultBuilder]: For program point L412(lines 412 880) no Hoare annotation was computed. [2023-11-29 02:22:28,161 INFO L899 garLoopResultBuilder]: For program point L148-1(lines 30 882) no Hoare annotation was computed. [2023-11-29 02:22:28,161 INFO L899 garLoopResultBuilder]: For program point L82-1(lines 30 882) no Hoare annotation was computed. [2023-11-29 02:22:28,161 INFO L899 garLoopResultBuilder]: For program point L875(lines 875 880) no Hoare annotation was computed. [2023-11-29 02:22:28,161 INFO L899 garLoopResultBuilder]: For program point L678(lines 678 880) no Hoare annotation was computed. [2023-11-29 02:22:28,162 INFO L899 garLoopResultBuilder]: For program point L546(lines 546 880) no Hoare annotation was computed. [2023-11-29 02:22:28,162 INFO L899 garLoopResultBuilder]: For program point L811(lines 811 880) no Hoare annotation was computed. [2023-11-29 02:22:28,162 INFO L899 garLoopResultBuilder]: For program point L745(lines 745 880) no Hoare annotation was computed. [2023-11-29 02:22:28,162 INFO L899 garLoopResultBuilder]: For program point L613(lines 613 880) no Hoare annotation was computed. [2023-11-29 02:22:28,162 INFO L899 garLoopResultBuilder]: For program point L151-1(lines 30 882) no Hoare annotation was computed. [2023-11-29 02:22:28,162 INFO L899 garLoopResultBuilder]: For program point L85-1(lines 30 882) no Hoare annotation was computed. [2023-11-29 02:22:28,162 INFO L899 garLoopResultBuilder]: For program point L482(lines 482 880) no Hoare annotation was computed. [2023-11-29 02:22:28,162 INFO L899 garLoopResultBuilder]: For program point L351(lines 351 880) no Hoare annotation was computed. [2023-11-29 02:22:28,162 INFO L899 garLoopResultBuilder]: For program point L285(lines 285 880) no Hoare annotation was computed. [2023-11-29 02:22:28,163 INFO L899 garLoopResultBuilder]: For program point L418(lines 418 880) no Hoare annotation was computed. [2023-11-29 02:22:28,163 INFO L899 garLoopResultBuilder]: For program point L154-1(lines 30 882) no Hoare annotation was computed. [2023-11-29 02:22:28,163 INFO L899 garLoopResultBuilder]: For program point L88-1(lines 30 882) no Hoare annotation was computed. [2023-11-29 02:22:28,163 INFO L899 garLoopResultBuilder]: For program point L551(lines 551 880) no Hoare annotation was computed. [2023-11-29 02:22:28,163 INFO L899 garLoopResultBuilder]: For program point L221(lines 221 880) no Hoare annotation was computed. [2023-11-29 02:22:28,163 INFO L899 garLoopResultBuilder]: For program point L684(lines 684 880) no Hoare annotation was computed. [2023-11-29 02:22:28,163 INFO L899 garLoopResultBuilder]: For program point L817(lines 817 880) no Hoare annotation was computed. [2023-11-29 02:22:28,163 INFO L899 garLoopResultBuilder]: For program point L751(lines 751 880) no Hoare annotation was computed. [2023-11-29 02:22:28,164 INFO L899 garLoopResultBuilder]: For program point L619(lines 619 880) no Hoare annotation was computed. [2023-11-29 02:22:28,164 INFO L899 garLoopResultBuilder]: For program point L157-1(lines 30 882) no Hoare annotation was computed. [2023-11-29 02:22:28,164 INFO L899 garLoopResultBuilder]: For program point L91-1(lines 30 882) no Hoare annotation was computed. [2023-11-29 02:22:28,164 INFO L899 garLoopResultBuilder]: For program point L884(lines 884 900) no Hoare annotation was computed. [2023-11-29 02:22:28,164 INFO L899 garLoopResultBuilder]: For program point L488(lines 488 880) no Hoare annotation was computed. [2023-11-29 02:22:28,164 INFO L899 garLoopResultBuilder]: For program point L290(lines 290 880) no Hoare annotation was computed. [2023-11-29 02:22:28,164 INFO L899 garLoopResultBuilder]: For program point L687(lines 687 880) no Hoare annotation was computed. [2023-11-29 02:22:28,164 INFO L899 garLoopResultBuilder]: For program point L357(lines 357 880) no Hoare annotation was computed. [2023-11-29 02:22:28,164 INFO L899 garLoopResultBuilder]: For program point L424(lines 424 880) no Hoare annotation was computed. [2023-11-29 02:22:28,165 INFO L899 garLoopResultBuilder]: For program point L160-1(lines 30 882) no Hoare annotation was computed. [2023-11-29 02:22:28,165 INFO L899 garLoopResultBuilder]: For program point L94-1(lines 30 882) no Hoare annotation was computed. [2023-11-29 02:22:28,165 INFO L899 garLoopResultBuilder]: For program point L557(lines 557 880) no Hoare annotation was computed. [2023-11-29 02:22:28,165 INFO L899 garLoopResultBuilder]: For program point L227(lines 227 880) no Hoare annotation was computed. [2023-11-29 02:22:28,165 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-29 02:22:28,165 INFO L899 garLoopResultBuilder]: For program point L757(lines 757 880) no Hoare annotation was computed. [2023-11-29 02:22:28,165 INFO L899 garLoopResultBuilder]: For program point L625(lines 625 880) no Hoare annotation was computed. [2023-11-29 02:22:28,165 INFO L899 garLoopResultBuilder]: For program point L163-1(lines 30 882) no Hoare annotation was computed. [2023-11-29 02:22:28,166 INFO L899 garLoopResultBuilder]: For program point L97-1(lines 30 882) no Hoare annotation was computed. [2023-11-29 02:22:28,166 INFO L899 garLoopResultBuilder]: For program point L31(lines 31 33) no Hoare annotation was computed. [2023-11-29 02:22:28,166 INFO L899 garLoopResultBuilder]: For program point L31-2(lines 30 882) no Hoare annotation was computed. [2023-11-29 02:22:28,166 INFO L899 garLoopResultBuilder]: For program point L824(lines 824 880) no Hoare annotation was computed. [2023-11-29 02:22:28,167 INFO L895 garLoopResultBuilder]: At program point L890-2(lines 890 899) the Hoare annotation is: (let ((.cse0 (= ~a24~0 1)) (.cse1 (<= ~a21~0 7))) (or (and (<= 6 ~a15~0) .cse0) (and .cse0 (<= 0 (+ ~a12~0 42))) (and (<= ~a15~0 8) .cse1 (<= (+ 49 ~a12~0) 0)) (and .cse0 (= ~a21~0 9)) (and .cse0 .cse1))) [2023-11-29 02:22:28,167 INFO L899 garLoopResultBuilder]: For program point L494(lines 494 880) no Hoare annotation was computed. [2023-11-29 02:22:28,167 INFO L899 garLoopResultBuilder]: For program point L296(lines 296 880) no Hoare annotation was computed. [2023-11-29 02:22:28,167 INFO L899 garLoopResultBuilder]: For program point calculate_output_returnLabel#1(lines 30 882) no Hoare annotation was computed. [2023-11-29 02:22:28,167 INFO L899 garLoopResultBuilder]: For program point L693(lines 693 880) no Hoare annotation was computed. [2023-11-29 02:22:28,167 INFO L899 garLoopResultBuilder]: For program point L363(lines 363 880) no Hoare annotation was computed. [2023-11-29 02:22:28,167 INFO L899 garLoopResultBuilder]: For program point L562(lines 562 880) no Hoare annotation was computed. [2023-11-29 02:22:28,168 INFO L899 garLoopResultBuilder]: For program point L430(lines 430 880) no Hoare annotation was computed. [2023-11-29 02:22:28,168 INFO L899 garLoopResultBuilder]: For program point L166-1(lines 30 882) no Hoare annotation was computed. [2023-11-29 02:22:28,168 INFO L899 garLoopResultBuilder]: For program point L100-1(lines 30 882) no Hoare annotation was computed. [2023-11-29 02:22:28,168 INFO L899 garLoopResultBuilder]: For program point L34-1(lines 30 882) no Hoare annotation was computed. [2023-11-29 02:22:28,168 INFO L899 garLoopResultBuilder]: For program point L233(lines 233 880) no Hoare annotation was computed. [2023-11-29 02:22:28,168 INFO L899 garLoopResultBuilder]: For program point L167(line 167) no Hoare annotation was computed. [2023-11-29 02:22:28,172 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:22:28,174 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 02:22:28,186 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 02:22:28 BoogieIcfgContainer [2023-11-29 02:22:28,186 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 02:22:28,187 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 02:22:28,187 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 02:22:28,187 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 02:22:28,188 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:22:04" (3/4) ... [2023-11-29 02:22:28,190 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-29 02:22:28,211 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-11-29 02:22:28,213 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-29 02:22:28,215 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-29 02:22:28,217 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-29 02:22:28,402 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a44795b-3219-42b6-8fe2-0ccfa3674b9d/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 02:22:28,403 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a44795b-3219-42b6-8fe2-0ccfa3674b9d/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-29 02:22:28,403 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 02:22:28,404 INFO L158 Benchmark]: Toolchain (without parser) took 26139.04ms. Allocated memory was 148.9MB in the beginning and 625.0MB in the end (delta: 476.1MB). Free memory was 101.3MB in the beginning and 561.8MB in the end (delta: -460.5MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. [2023-11-29 02:22:28,404 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 148.9MB. Free memory was 119.0MB in the beginning and 119.0MB in the end (delta: 27.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 02:22:28,405 INFO L158 Benchmark]: CACSL2BoogieTranslator took 548.49ms. Allocated memory was 148.9MB in the beginning and 205.5MB in the end (delta: 56.6MB). Free memory was 100.8MB in the beginning and 171.4MB in the end (delta: -70.6MB). Peak memory consumption was 40.4MB. Max. memory is 16.1GB. [2023-11-29 02:22:28,406 INFO L158 Benchmark]: Boogie Procedure Inliner took 90.13ms. Allocated memory is still 205.5MB. Free memory was 171.4MB in the beginning and 161.9MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-29 02:22:28,406 INFO L158 Benchmark]: Boogie Preprocessor took 105.77ms. Allocated memory is still 205.5MB. Free memory was 161.9MB in the beginning and 149.3MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-29 02:22:28,406 INFO L158 Benchmark]: RCFGBuilder took 1281.51ms. Allocated memory is still 205.5MB. Free memory was 149.3MB in the beginning and 129.0MB in the end (delta: 20.3MB). Peak memory consumption was 79.7MB. Max. memory is 16.1GB. [2023-11-29 02:22:28,407 INFO L158 Benchmark]: TraceAbstraction took 23889.71ms. Allocated memory was 205.5MB in the beginning and 625.0MB in the end (delta: 419.4MB). Free memory was 127.9MB in the beginning and 576.5MB in the end (delta: -448.6MB). Peak memory consumption was 273.9MB. Max. memory is 16.1GB. [2023-11-29 02:22:28,407 INFO L158 Benchmark]: Witness Printer took 216.18ms. Allocated memory is still 625.0MB. Free memory was 576.5MB in the beginning and 561.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-29 02:22:28,409 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 148.9MB. Free memory was 119.0MB in the beginning and 119.0MB in the end (delta: 27.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 548.49ms. Allocated memory was 148.9MB in the beginning and 205.5MB in the end (delta: 56.6MB). Free memory was 100.8MB in the beginning and 171.4MB in the end (delta: -70.6MB). Peak memory consumption was 40.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 90.13ms. Allocated memory is still 205.5MB. Free memory was 171.4MB in the beginning and 161.9MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 105.77ms. Allocated memory is still 205.5MB. Free memory was 161.9MB in the beginning and 149.3MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * RCFGBuilder took 1281.51ms. Allocated memory is still 205.5MB. Free memory was 149.3MB in the beginning and 129.0MB in the end (delta: 20.3MB). Peak memory consumption was 79.7MB. Max. memory is 16.1GB. * TraceAbstraction took 23889.71ms. Allocated memory was 205.5MB in the beginning and 625.0MB in the end (delta: 419.4MB). Free memory was 127.9MB in the beginning and 576.5MB in the end (delta: -448.6MB). Peak memory consumption was 273.9MB. Max. memory is 16.1GB. * Witness Printer took 216.18ms. Allocated memory is still 625.0MB. Free memory was 576.5MB in the beginning and 561.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. 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: 167]: 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, 183 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 23.8s, OverallIterations: 17, TraceHistogramMax: 8, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 9.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2080 SdHoareTripleChecker+Valid, 8.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2080 mSDsluCounter, 1861 SdHoareTripleChecker+Invalid, 7.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 79 mSDsCounter, 907 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8280 IncrementalHoareTripleChecker+Invalid, 9187 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 907 mSolverCounterUnsat, 1782 mSDtfsCounter, 8280 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3009 GetRequests, 2967 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5343occurred in iteration=15, InterpolantAutomatonStates: 54, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 17 MinimizatonAttempts, 3210 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 31 NumberOfFragments, 43 HoareAnnotationTreeSize, 1 FomulaSimplifications, 1059 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 1 FomulaSimplificationsInter, 889 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 8.8s InterpolantComputationTime, 9822 NumberOfCodeBlocks, 9822 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 9799 ConstructedInterpolants, 0 QuantifiedInterpolants, 32205 SizeOfPredicates, 0 NumberOfNonLiveVariables, 3765 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 23 InterpolantComputations, 17 PerfectInterpolantSequences, 16272/17330 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: 890]: Loop Invariant Derived loop invariant: ((((((6 <= a15) && (a24 == 1)) || ((a24 == 1) && (0 <= (a12 + 42)))) || (((a15 <= 8) && (a21 <= 7)) && ((49 + a12) <= 0))) || ((a24 == 1) && (a21 == 9))) || ((a24 == 1) && (a21 <= 7))) RESULT: Ultimate proved your program to be correct! [2023-11-29 02:22:28,427 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a44795b-3219-42b6-8fe2-0ccfa3674b9d/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