./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/forester-heap/sll-01-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ae57aac-cfc6-46d2-a232-f76caa198384/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ae57aac-cfc6-46d2-a232-f76caa198384/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ae57aac-cfc6-46d2-a232-f76caa198384/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ae57aac-cfc6-46d2-a232-f76caa198384/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/forester-heap/sll-01-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ae57aac-cfc6-46d2-a232-f76caa198384/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ae57aac-cfc6-46d2-a232-f76caa198384/bin/uautomizer-verify-bycVGegfSx --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 14067621d9a8f66625f13d1d9faf9b421dec38bd60b4ac0ad734bd36e2df123a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:21:45,526 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:21:45,594 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ae57aac-cfc6-46d2-a232-f76caa198384/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-21 22:21:45,600 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:21:45,601 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:21:45,626 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:21:45,627 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:21:45,628 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:21:45,629 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:21:45,629 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:21:45,630 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:21:45,631 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:21:45,632 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:21:45,633 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:21:45,633 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:21:45,634 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:21:45,634 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:21:45,635 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:21:45,636 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:21:45,636 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:21:45,637 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:21:45,637 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:21:45,638 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:21:45,638 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:21:45,639 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:21:45,639 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:21:45,640 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:21:45,640 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:21:45,641 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:21:45,641 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:21:45,642 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:21:45,642 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:21:45,643 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:21:45,643 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:21:45,643 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:21:45,644 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:21:45,644 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:21:45,644 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:21:45,645 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:21:45,645 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:21:45,645 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:21:45,646 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:21:45,646 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_4ae57aac-cfc6-46d2-a232-f76caa198384/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ae57aac-cfc6-46d2-a232-f76caa198384/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14067621d9a8f66625f13d1d9faf9b421dec38bd60b4ac0ad734bd36e2df123a [2023-11-21 22:21:45,916 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:21:45,949 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:21:45,952 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:21:45,954 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:21:45,954 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:21:45,955 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ae57aac-cfc6-46d2-a232-f76caa198384/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/forester-heap/sll-01-2.i [2023-11-21 22:21:49,245 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:21:49,592 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:21:49,593 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ae57aac-cfc6-46d2-a232-f76caa198384/sv-benchmarks/c/forester-heap/sll-01-2.i [2023-11-21 22:21:49,607 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ae57aac-cfc6-46d2-a232-f76caa198384/bin/uautomizer-verify-bycVGegfSx/data/301407b4f/08d68bd7961d43689c62bc2537b36e9d/FLAGcb838dc14 [2023-11-21 22:21:49,624 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ae57aac-cfc6-46d2-a232-f76caa198384/bin/uautomizer-verify-bycVGegfSx/data/301407b4f/08d68bd7961d43689c62bc2537b36e9d [2023-11-21 22:21:49,627 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:21:49,628 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:21:49,630 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:21:49,630 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:21:49,636 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:21:49,637 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:21:49" (1/1) ... [2023-11-21 22:21:49,638 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@388f7002 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:49, skipping insertion in model container [2023-11-21 22:21:49,639 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:21:49" (1/1) ... [2023-11-21 22:21:49,710 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:21:50,077 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_4ae57aac-cfc6-46d2-a232-f76caa198384/sv-benchmarks/c/forester-heap/sll-01-2.i[22034,22047] [2023-11-21 22:21:50,097 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_4ae57aac-cfc6-46d2-a232-f76caa198384/sv-benchmarks/c/forester-heap/sll-01-2.i[22307,22320] [2023-11-21 22:21:50,102 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_4ae57aac-cfc6-46d2-a232-f76caa198384/sv-benchmarks/c/forester-heap/sll-01-2.i[22516,22529] [2023-11-21 22:21:50,103 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_4ae57aac-cfc6-46d2-a232-f76caa198384/sv-benchmarks/c/forester-heap/sll-01-2.i[22586,22599] [2023-11-21 22:21:50,107 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_4ae57aac-cfc6-46d2-a232-f76caa198384/sv-benchmarks/c/forester-heap/sll-01-2.i[22853,22866] [2023-11-21 22:21:50,109 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_4ae57aac-cfc6-46d2-a232-f76caa198384/sv-benchmarks/c/forester-heap/sll-01-2.i[22961,22974] [2023-11-21 22:21:50,112 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_4ae57aac-cfc6-46d2-a232-f76caa198384/sv-benchmarks/c/forester-heap/sll-01-2.i[23192,23205] [2023-11-21 22:21:50,113 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_4ae57aac-cfc6-46d2-a232-f76caa198384/sv-benchmarks/c/forester-heap/sll-01-2.i[23272,23285] [2023-11-21 22:21:50,115 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_4ae57aac-cfc6-46d2-a232-f76caa198384/sv-benchmarks/c/forester-heap/sll-01-2.i[23351,23364] [2023-11-21 22:21:50,116 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_4ae57aac-cfc6-46d2-a232-f76caa198384/sv-benchmarks/c/forester-heap/sll-01-2.i[23484,23497] [2023-11-21 22:21:50,119 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_4ae57aac-cfc6-46d2-a232-f76caa198384/sv-benchmarks/c/forester-heap/sll-01-2.i[23662,23675] [2023-11-21 22:21:50,120 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_4ae57aac-cfc6-46d2-a232-f76caa198384/sv-benchmarks/c/forester-heap/sll-01-2.i[23740,23753] [2023-11-21 22:21:50,121 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_4ae57aac-cfc6-46d2-a232-f76caa198384/sv-benchmarks/c/forester-heap/sll-01-2.i[23817,23830] [2023-11-21 22:21:50,127 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:21:50,147 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:21:50,184 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_4ae57aac-cfc6-46d2-a232-f76caa198384/sv-benchmarks/c/forester-heap/sll-01-2.i[22034,22047] [2023-11-21 22:21:50,187 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_4ae57aac-cfc6-46d2-a232-f76caa198384/sv-benchmarks/c/forester-heap/sll-01-2.i[22307,22320] [2023-11-21 22:21:50,189 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_4ae57aac-cfc6-46d2-a232-f76caa198384/sv-benchmarks/c/forester-heap/sll-01-2.i[22516,22529] [2023-11-21 22:21:50,190 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_4ae57aac-cfc6-46d2-a232-f76caa198384/sv-benchmarks/c/forester-heap/sll-01-2.i[22586,22599] [2023-11-21 22:21:50,193 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_4ae57aac-cfc6-46d2-a232-f76caa198384/sv-benchmarks/c/forester-heap/sll-01-2.i[22853,22866] [2023-11-21 22:21:50,195 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_4ae57aac-cfc6-46d2-a232-f76caa198384/sv-benchmarks/c/forester-heap/sll-01-2.i[22961,22974] [2023-11-21 22:21:50,197 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_4ae57aac-cfc6-46d2-a232-f76caa198384/sv-benchmarks/c/forester-heap/sll-01-2.i[23192,23205] [2023-11-21 22:21:50,198 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_4ae57aac-cfc6-46d2-a232-f76caa198384/sv-benchmarks/c/forester-heap/sll-01-2.i[23272,23285] [2023-11-21 22:21:50,199 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_4ae57aac-cfc6-46d2-a232-f76caa198384/sv-benchmarks/c/forester-heap/sll-01-2.i[23351,23364] [2023-11-21 22:21:50,201 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_4ae57aac-cfc6-46d2-a232-f76caa198384/sv-benchmarks/c/forester-heap/sll-01-2.i[23484,23497] [2023-11-21 22:21:50,203 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_4ae57aac-cfc6-46d2-a232-f76caa198384/sv-benchmarks/c/forester-heap/sll-01-2.i[23662,23675] [2023-11-21 22:21:50,204 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_4ae57aac-cfc6-46d2-a232-f76caa198384/sv-benchmarks/c/forester-heap/sll-01-2.i[23740,23753] [2023-11-21 22:21:50,205 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_4ae57aac-cfc6-46d2-a232-f76caa198384/sv-benchmarks/c/forester-heap/sll-01-2.i[23817,23830] [2023-11-21 22:21:50,208 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:21:50,242 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:21:50,243 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:50 WrapperNode [2023-11-21 22:21:50,243 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:21:50,244 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:21:50,245 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:21:50,245 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:21:50,254 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:50" (1/1) ... [2023-11-21 22:21:50,280 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:50" (1/1) ... [2023-11-21 22:21:50,308 INFO L138 Inliner]: procedures = 119, calls = 42, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 228 [2023-11-21 22:21:50,309 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:21:50,310 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:21:50,310 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:21:50,310 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:21:50,323 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:50" (1/1) ... [2023-11-21 22:21:50,324 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:50" (1/1) ... [2023-11-21 22:21:50,333 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:50" (1/1) ... [2023-11-21 22:21:50,357 INFO L187 HeapSplitter]: Split 32 memory accesses to 2 slices as follows [2, 30] [2023-11-21 22:21:50,360 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:50" (1/1) ... [2023-11-21 22:21:50,361 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:50" (1/1) ... [2023-11-21 22:21:50,373 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:50" (1/1) ... [2023-11-21 22:21:50,384 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:50" (1/1) ... [2023-11-21 22:21:50,387 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:50" (1/1) ... [2023-11-21 22:21:50,389 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:50" (1/1) ... [2023-11-21 22:21:50,393 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:21:50,394 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:21:50,394 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:21:50,394 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:21:50,395 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:50" (1/1) ... [2023-11-21 22:21:50,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:21:50,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ae57aac-cfc6-46d2-a232-f76caa198384/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:21:50,446 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ae57aac-cfc6-46d2-a232-f76caa198384/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:21:50,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ae57aac-cfc6-46d2-a232-f76caa198384/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:21:50,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 22:21:50,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:21:50,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-21 22:21:50,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-21 22:21:50,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-21 22:21:50,510 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-21 22:21:50,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:21:50,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 22:21:50,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-21 22:21:50,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:21:50,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:21:50,707 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:21:50,710 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:21:51,135 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:21:51,307 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:21:51,307 INFO L308 CfgBuilder]: Removed 30 assume(true) statements. [2023-11-21 22:21:51,309 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:21:51 BoogieIcfgContainer [2023-11-21 22:21:51,309 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:21:51,312 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:21:51,312 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:21:51,319 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:21:51,319 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:21:49" (1/3) ... [2023-11-21 22:21:51,320 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35fef705 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:21:51, skipping insertion in model container [2023-11-21 22:21:51,321 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:50" (2/3) ... [2023-11-21 22:21:51,323 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35fef705 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:21:51, skipping insertion in model container [2023-11-21 22:21:51,323 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:21:51" (3/3) ... [2023-11-21 22:21:51,325 INFO L112 eAbstractionObserver]: Analyzing ICFG sll-01-2.i [2023-11-21 22:21:51,348 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:21:51,348 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2023-11-21 22:21:51,420 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:21:51,429 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;@5f90cd7d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:21:51,430 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2023-11-21 22:21:51,435 INFO L276 IsEmpty]: Start isEmpty. Operand has 74 states, 60 states have (on average 1.9666666666666666) internal successors, (118), 73 states have internal predecessors, (118), 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) [2023-11-21 22:21:51,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-21 22:21:51,441 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:21:51,442 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-21 22:21:51,443 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2023-11-21 22:21:51,449 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:21:51,449 INFO L85 PathProgramCache]: Analyzing trace with hash 353905, now seen corresponding path program 1 times [2023-11-21 22:21:51,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:21:51,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592102864] [2023-11-21 22:21:51,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:21:51,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:21:51,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:51,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:21:51,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:21:51,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592102864] [2023-11-21 22:21:51,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592102864] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:21:51,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:21:51,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:21:51,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282320731] [2023-11-21 22:21:51,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:21:51,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:21:51,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:21:51,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:21:51,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:21:51,732 INFO L87 Difference]: Start difference. First operand has 74 states, 60 states have (on average 1.9666666666666666) internal successors, (118), 73 states have internal predecessors, (118), 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 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 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) [2023-11-21 22:21:51,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:21:51,864 INFO L93 Difference]: Finished difference Result 163 states and 262 transitions. [2023-11-21 22:21:51,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:21:51,867 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2023-11-21 22:21:51,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:21:51,878 INFO L225 Difference]: With dead ends: 163 [2023-11-21 22:21:51,879 INFO L226 Difference]: Without dead ends: 89 [2023-11-21 22:21:51,882 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 [2023-11-21 22:21:51,888 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 73 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:21:51,893 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 78 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:21:51,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2023-11-21 22:21:51,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 71. [2023-11-21 22:21:51,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 59 states have (on average 1.271186440677966) internal successors, (75), 70 states have internal predecessors, (75), 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) [2023-11-21 22:21:51,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 75 transitions. [2023-11-21 22:21:51,942 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 75 transitions. Word has length 3 [2023-11-21 22:21:51,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:21:51,943 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 75 transitions. [2023-11-21 22:21:51,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 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) [2023-11-21 22:21:51,943 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 75 transitions. [2023-11-21 22:21:51,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-21 22:21:51,944 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:21:51,945 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:21:51,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:21:51,946 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2023-11-21 22:21:51,947 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:21:51,947 INFO L85 PathProgramCache]: Analyzing trace with hash 552990291, now seen corresponding path program 1 times [2023-11-21 22:21:51,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:21:51,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495765488] [2023-11-21 22:21:51,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:21:51,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:21:52,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:52,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:21:52,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:21:52,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495765488] [2023-11-21 22:21:52,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495765488] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:21:52,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:21:52,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:21:52,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908000883] [2023-11-21 22:21:52,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:21:52,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:21:52,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:21:52,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:21:52,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:21:52,396 INFO L87 Difference]: Start difference. First operand 71 states and 75 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2023-11-21 22:21:52,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:21:52,488 INFO L93 Difference]: Finished difference Result 71 states and 75 transitions. [2023-11-21 22:21:52,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:21:52,489 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2023-11-21 22:21:52,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:21:52,493 INFO L225 Difference]: With dead ends: 71 [2023-11-21 22:21:52,493 INFO L226 Difference]: Without dead ends: 69 [2023-11-21 22:21:52,493 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 [2023-11-21 22:21:52,497 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 0 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:21:52,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 126 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:21:52,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2023-11-21 22:21:52,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2023-11-21 22:21:52,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 58 states have (on average 1.2586206896551724) internal successors, (73), 68 states have internal predecessors, (73), 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) [2023-11-21 22:21:52,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 73 transitions. [2023-11-21 22:21:52,518 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 73 transitions. Word has length 7 [2023-11-21 22:21:52,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:21:52,519 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 73 transitions. [2023-11-21 22:21:52,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2023-11-21 22:21:52,519 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 73 transitions. [2023-11-21 22:21:52,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-21 22:21:52,520 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:21:52,520 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:21:52,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 22:21:52,520 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2023-11-21 22:21:52,521 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:21:52,521 INFO L85 PathProgramCache]: Analyzing trace with hash 1752727428, now seen corresponding path program 1 times [2023-11-21 22:21:52,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:21:52,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401095980] [2023-11-21 22:21:52,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:21:52,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:21:52,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:52,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:21:52,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:21:52,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401095980] [2023-11-21 22:21:52,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401095980] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:21:52,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:21:52,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:21:52,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867847172] [2023-11-21 22:21:52,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:21:52,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:21:52,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:21:52,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:21:52,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:21:52,656 INFO L87 Difference]: Start difference. First operand 69 states and 73 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2023-11-21 22:21:52,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:21:52,775 INFO L93 Difference]: Finished difference Result 72 states and 77 transitions. [2023-11-21 22:21:52,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:21:52,776 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 12 [2023-11-21 22:21:52,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:21:52,778 INFO L225 Difference]: With dead ends: 72 [2023-11-21 22:21:52,779 INFO L226 Difference]: Without dead ends: 68 [2023-11-21 22:21:52,779 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 [2023-11-21 22:21:52,783 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 12 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:21:52,784 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 97 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:21:52,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2023-11-21 22:21:52,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 65. [2023-11-21 22:21:52,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 56 states have (on average 1.2321428571428572) internal successors, (69), 64 states have internal predecessors, (69), 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) [2023-11-21 22:21:52,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 69 transitions. [2023-11-21 22:21:52,796 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 69 transitions. Word has length 12 [2023-11-21 22:21:52,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:21:52,797 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 69 transitions. [2023-11-21 22:21:52,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2023-11-21 22:21:52,797 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 69 transitions. [2023-11-21 22:21:52,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-21 22:21:52,797 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:21:52,798 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:21:52,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 22:21:52,798 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2023-11-21 22:21:52,799 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:21:52,799 INFO L85 PathProgramCache]: Analyzing trace with hash -1500020380, now seen corresponding path program 1 times [2023-11-21 22:21:52,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:21:52,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608741450] [2023-11-21 22:21:52,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:21:52,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:21:52,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:52,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:21:52,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:21:52,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608741450] [2023-11-21 22:21:52,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608741450] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:21:52,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:21:52,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:21:52,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217625261] [2023-11-21 22:21:52,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:21:52,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:21:52,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:21:52,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:21:52,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:21:52,957 INFO L87 Difference]: Start difference. First operand 65 states and 69 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 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) [2023-11-21 22:21:53,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:21:53,097 INFO L93 Difference]: Finished difference Result 123 states and 131 transitions. [2023-11-21 22:21:53,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:21:53,098 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 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 13 [2023-11-21 22:21:53,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:21:53,103 INFO L225 Difference]: With dead ends: 123 [2023-11-21 22:21:53,104 INFO L226 Difference]: Without dead ends: 103 [2023-11-21 22:21:53,104 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 [2023-11-21 22:21:53,107 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 115 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:21:53,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 95 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:21:53,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2023-11-21 22:21:53,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 64. [2023-11-21 22:21:53,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 56 states have (on average 1.2142857142857142) internal successors, (68), 63 states have internal predecessors, (68), 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) [2023-11-21 22:21:53,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 68 transitions. [2023-11-21 22:21:53,120 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 68 transitions. Word has length 13 [2023-11-21 22:21:53,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:21:53,120 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 68 transitions. [2023-11-21 22:21:53,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 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) [2023-11-21 22:21:53,121 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 68 transitions. [2023-11-21 22:21:53,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-21 22:21:53,121 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:21:53,122 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:21:53,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-21 22:21:53,122 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2023-11-21 22:21:53,122 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:21:53,123 INFO L85 PathProgramCache]: Analyzing trace with hash -1443683458, now seen corresponding path program 1 times [2023-11-21 22:21:53,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:21:53,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121189141] [2023-11-21 22:21:53,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:21:53,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:21:53,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:53,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:21:53,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:21:53,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121189141] [2023-11-21 22:21:53,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121189141] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:21:53,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:21:53,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:21:53,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760629861] [2023-11-21 22:21:53,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:21:53,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:21:53,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:21:53,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:21:53,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:21:53,205 INFO L87 Difference]: Start difference. First operand 64 states and 68 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2023-11-21 22:21:53,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:21:53,274 INFO L93 Difference]: Finished difference Result 70 states and 75 transitions. [2023-11-21 22:21:53,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:21:53,275 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 17 [2023-11-21 22:21:53,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:21:53,276 INFO L225 Difference]: With dead ends: 70 [2023-11-21 22:21:53,276 INFO L226 Difference]: Without dead ends: 68 [2023-11-21 22:21:53,277 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 [2023-11-21 22:21:53,278 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 2 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:21:53,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 111 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:21:53,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2023-11-21 22:21:53,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 66. [2023-11-21 22:21:53,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 58 states have (on average 1.2241379310344827) internal successors, (71), 65 states have internal predecessors, (71), 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) [2023-11-21 22:21:53,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 71 transitions. [2023-11-21 22:21:53,298 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 71 transitions. Word has length 17 [2023-11-21 22:21:53,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:21:53,299 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 71 transitions. [2023-11-21 22:21:53,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2023-11-21 22:21:53,301 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 71 transitions. [2023-11-21 22:21:53,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-21 22:21:53,305 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:21:53,305 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:21:53,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-21 22:21:53,306 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2023-11-21 22:21:53,307 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:21:53,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1443679708, now seen corresponding path program 1 times [2023-11-21 22:21:53,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:21:53,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823821815] [2023-11-21 22:21:53,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:21:53,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:21:53,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:53,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:21:53,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:21:53,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823821815] [2023-11-21 22:21:53,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823821815] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:21:53,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:21:53,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:21:53,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889673015] [2023-11-21 22:21:53,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:21:53,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:21:53,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:21:53,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:21:53,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:21:53,404 INFO L87 Difference]: Start difference. First operand 66 states and 71 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2023-11-21 22:21:53,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:21:53,465 INFO L93 Difference]: Finished difference Result 66 states and 71 transitions. [2023-11-21 22:21:53,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:21:53,466 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 17 [2023-11-21 22:21:53,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:21:53,466 INFO L225 Difference]: With dead ends: 66 [2023-11-21 22:21:53,467 INFO L226 Difference]: Without dead ends: 64 [2023-11-21 22:21:53,467 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:21:53,468 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 12 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 22:21:53,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 95 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 22:21:53,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2023-11-21 22:21:53,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2023-11-21 22:21:53,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 57 states have (on average 1.2105263157894737) internal successors, (69), 63 states have internal predecessors, (69), 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) [2023-11-21 22:21:53,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 69 transitions. [2023-11-21 22:21:53,488 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 69 transitions. Word has length 17 [2023-11-21 22:21:53,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:21:53,489 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 69 transitions. [2023-11-21 22:21:53,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2023-11-21 22:21:53,489 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 69 transitions. [2023-11-21 22:21:53,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-21 22:21:53,491 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:21:53,491 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:21:53,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-21 22:21:53,491 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2023-11-21 22:21:53,492 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:21:53,492 INFO L85 PathProgramCache]: Analyzing trace with hash 1543724711, now seen corresponding path program 1 times [2023-11-21 22:21:53,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:21:53,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855176818] [2023-11-21 22:21:53,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:21:53,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:21:53,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:53,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:21:53,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:21:53,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855176818] [2023-11-21 22:21:53,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855176818] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:21:53,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:21:53,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:21:53,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956970771] [2023-11-21 22:21:53,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:21:53,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:21:53,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:21:53,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:21:53,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:21:53,767 INFO L87 Difference]: Start difference. First operand 64 states and 69 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2023-11-21 22:21:53,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:21:53,824 INFO L93 Difference]: Finished difference Result 64 states and 69 transitions. [2023-11-21 22:21:53,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:21:53,825 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 18 [2023-11-21 22:21:53,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:21:53,826 INFO L225 Difference]: With dead ends: 64 [2023-11-21 22:21:53,826 INFO L226 Difference]: Without dead ends: 62 [2023-11-21 22:21:53,827 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 [2023-11-21 22:21:53,828 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 0 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 22:21:53,829 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 106 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 22:21:53,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2023-11-21 22:21:53,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2023-11-21 22:21:53,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 56 states have (on average 1.1964285714285714) internal successors, (67), 61 states have internal predecessors, (67), 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) [2023-11-21 22:21:53,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 67 transitions. [2023-11-21 22:21:53,842 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 67 transitions. Word has length 18 [2023-11-21 22:21:53,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:21:53,842 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 67 transitions. [2023-11-21 22:21:53,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2023-11-21 22:21:53,842 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 67 transitions. [2023-11-21 22:21:53,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-21 22:21:53,843 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:21:53,844 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] [2023-11-21 22:21:53,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-21 22:21:53,844 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2023-11-21 22:21:53,844 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:21:53,845 INFO L85 PathProgramCache]: Analyzing trace with hash 1144415483, now seen corresponding path program 1 times [2023-11-21 22:21:53,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:21:53,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847524051] [2023-11-21 22:21:53,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:21:53,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:21:53,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:55,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:21:55,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:21:55,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847524051] [2023-11-21 22:21:55,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847524051] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:21:55,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:21:55,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-21 22:21:55,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900232857] [2023-11-21 22:21:55,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:21:55,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-21 22:21:55,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:21:55,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-21 22:21:55,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-21 22:21:55,332 INFO L87 Difference]: Start difference. First operand 62 states and 67 transitions. Second operand has 8 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 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) [2023-11-21 22:21:56,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:21:56,011 INFO L93 Difference]: Finished difference Result 160 states and 173 transitions. [2023-11-21 22:21:56,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-21 22:21:56,012 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 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 20 [2023-11-21 22:21:56,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:21:56,013 INFO L225 Difference]: With dead ends: 160 [2023-11-21 22:21:56,013 INFO L226 Difference]: Without dead ends: 158 [2023-11-21 22:21:56,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2023-11-21 22:21:56,016 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 247 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-21 22:21:56,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 276 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-21 22:21:56,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2023-11-21 22:21:56,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 73. [2023-11-21 22:21:56,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 67 states have (on average 1.1940298507462686) internal successors, (80), 72 states have internal predecessors, (80), 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) [2023-11-21 22:21:56,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 80 transitions. [2023-11-21 22:21:56,042 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 80 transitions. Word has length 20 [2023-11-21 22:21:56,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:21:56,042 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 80 transitions. [2023-11-21 22:21:56,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 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) [2023-11-21 22:21:56,042 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 80 transitions. [2023-11-21 22:21:56,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-21 22:21:56,044 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:21:56,045 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] [2023-11-21 22:21:56,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-21 22:21:56,045 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2023-11-21 22:21:56,047 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:21:56,047 INFO L85 PathProgramCache]: Analyzing trace with hash -2109195128, now seen corresponding path program 1 times [2023-11-21 22:21:56,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:21:56,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635639083] [2023-11-21 22:21:56,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:21:56,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:21:56,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:56,119 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-21 22:21:56,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:21:56,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635639083] [2023-11-21 22:21:56,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635639083] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:21:56,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:21:56,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:21:56,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998603125] [2023-11-21 22:21:56,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:21:56,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:21:56,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:21:56,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:21:56,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:21:56,123 INFO L87 Difference]: Start difference. First operand 73 states and 80 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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) [2023-11-21 22:21:56,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:21:56,210 INFO L93 Difference]: Finished difference Result 73 states and 80 transitions. [2023-11-21 22:21:56,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:21:56,211 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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 23 [2023-11-21 22:21:56,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:21:56,212 INFO L225 Difference]: With dead ends: 73 [2023-11-21 22:21:56,212 INFO L226 Difference]: Without dead ends: 71 [2023-11-21 22:21:56,212 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 [2023-11-21 22:21:56,213 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 43 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:21:56,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 53 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:21:56,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2023-11-21 22:21:56,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2023-11-21 22:21:56,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 66 states have (on average 1.1818181818181819) internal successors, (78), 70 states have internal predecessors, (78), 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) [2023-11-21 22:21:56,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 78 transitions. [2023-11-21 22:21:56,230 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 78 transitions. Word has length 23 [2023-11-21 22:21:56,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:21:56,230 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 78 transitions. [2023-11-21 22:21:56,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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) [2023-11-21 22:21:56,230 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 78 transitions. [2023-11-21 22:21:56,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-21 22:21:56,231 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:21:56,232 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] [2023-11-21 22:21:56,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-21 22:21:56,232 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2023-11-21 22:21:56,233 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:21:56,233 INFO L85 PathProgramCache]: Analyzing trace with hash -164629354, now seen corresponding path program 1 times [2023-11-21 22:21:56,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:21:56,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996360905] [2023-11-21 22:21:56,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:21:56,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:21:56,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:57,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:21:57,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:21:57,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996360905] [2023-11-21 22:21:57,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996360905] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:21:57,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:21:57,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-21 22:21:57,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403269308] [2023-11-21 22:21:57,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:21:57,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-21 22:21:57,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:21:57,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-21 22:21:57,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-21 22:21:57,186 INFO L87 Difference]: Start difference. First operand 71 states and 78 transitions. Second operand has 8 states, 8 states have (on average 2.875) internal successors, (23), 7 states have internal predecessors, (23), 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) [2023-11-21 22:21:57,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:21:57,818 INFO L93 Difference]: Finished difference Result 153 states and 166 transitions. [2023-11-21 22:21:57,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-21 22:21:57,819 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 7 states have internal predecessors, (23), 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 23 [2023-11-21 22:21:57,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:21:57,822 INFO L225 Difference]: With dead ends: 153 [2023-11-21 22:21:57,822 INFO L226 Difference]: Without dead ends: 151 [2023-11-21 22:21:57,822 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2023-11-21 22:21:57,823 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 227 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-21 22:21:57,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 217 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-21 22:21:57,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2023-11-21 22:21:57,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 74. [2023-11-21 22:21:57,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 69 states have (on average 1.173913043478261) internal successors, (81), 73 states have internal predecessors, (81), 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) [2023-11-21 22:21:57,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 81 transitions. [2023-11-21 22:21:57,851 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 81 transitions. Word has length 23 [2023-11-21 22:21:57,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:21:57,852 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 81 transitions. [2023-11-21 22:21:57,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 7 states have internal predecessors, (23), 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) [2023-11-21 22:21:57,852 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 81 transitions. [2023-11-21 22:21:57,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-21 22:21:57,853 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:21:57,854 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:21:57,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-21 22:21:57,854 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2023-11-21 22:21:57,855 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:21:57,855 INFO L85 PathProgramCache]: Analyzing trace with hash 1260364037, now seen corresponding path program 1 times [2023-11-21 22:21:57,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:21:57,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058101794] [2023-11-21 22:21:57,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:21:57,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:21:57,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:58,351 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:21:58,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:21:58,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058101794] [2023-11-21 22:21:58,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058101794] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:21:58,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1985634019] [2023-11-21 22:21:58,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:21:58,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:21:58,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ae57aac-cfc6-46d2-a232-f76caa198384/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:21:58,364 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ae57aac-cfc6-46d2-a232-f76caa198384/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:21:58,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ae57aac-cfc6-46d2-a232-f76caa198384/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-21 22:21:58,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:58,537 INFO L262 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 28 conjunts are in the unsatisfiable core [2023-11-21 22:21:58,546 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:21:58,604 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-21 22:21:58,610 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-21 22:21:58,617 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-21 22:21:58,800 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 193 treesize of output 185 [2023-11-21 22:21:58,834 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 189 treesize of output 202 [2023-11-21 22:21:58,855 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 191 treesize of output 185 [2023-11-21 22:21:59,007 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-21 22:21:59,007 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 95 treesize of output 99 [2023-11-21 22:21:59,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:21:59,092 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 23 [2023-11-21 22:21:59,163 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 16 [2023-11-21 22:21:59,407 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:21:59,407 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:21:59,728 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-21 22:21:59,729 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 223 treesize of output 239 [2023-11-21 22:22:00,785 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:22:00,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1985634019] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:22:00,786 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 22:22:00,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 7] total 14 [2023-11-21 22:22:00,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777140055] [2023-11-21 22:22:00,788 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 22:22:00,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-21 22:22:00,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:22:00,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-21 22:22:00,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2023-11-21 22:22:00,790 INFO L87 Difference]: Start difference. First operand 74 states and 81 transitions. Second operand has 15 states, 15 states have (on average 3.8666666666666667) internal successors, (58), 14 states have internal predecessors, (58), 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) [2023-11-21 22:22:01,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:22:01,731 INFO L93 Difference]: Finished difference Result 155 states and 169 transitions. [2023-11-21 22:22:01,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-21 22:22:01,731 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.8666666666666667) internal successors, (58), 14 states have internal predecessors, (58), 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 25 [2023-11-21 22:22:01,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:22:01,732 INFO L225 Difference]: With dead ends: 155 [2023-11-21 22:22:01,732 INFO L226 Difference]: Without dead ends: 117 [2023-11-21 22:22:01,733 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=122, Invalid=298, Unknown=0, NotChecked=0, Total=420 [2023-11-21 22:22:01,734 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 308 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-21 22:22:01,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [308 Valid, 255 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-21 22:22:01,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2023-11-21 22:22:01,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 89. [2023-11-21 22:22:01,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 84 states have (on average 1.1904761904761905) internal successors, (100), 88 states have internal predecessors, (100), 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) [2023-11-21 22:22:01,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 100 transitions. [2023-11-21 22:22:01,763 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 100 transitions. Word has length 25 [2023-11-21 22:22:01,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:22:01,763 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 100 transitions. [2023-11-21 22:22:01,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.8666666666666667) internal successors, (58), 14 states have internal predecessors, (58), 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) [2023-11-21 22:22:01,764 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 100 transitions. [2023-11-21 22:22:01,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-21 22:22:01,765 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:22:01,765 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] [2023-11-21 22:22:01,794 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ae57aac-cfc6-46d2-a232-f76caa198384/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-21 22:22:01,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ae57aac-cfc6-46d2-a232-f76caa198384/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-21 22:22:01,981 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2023-11-21 22:22:01,981 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:22:01,981 INFO L85 PathProgramCache]: Analyzing trace with hash 343671927, now seen corresponding path program 1 times [2023-11-21 22:22:01,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:22:01,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836417141] [2023-11-21 22:22:01,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:01,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:22:02,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:22:02,434 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:22:02,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:22:02,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836417141] [2023-11-21 22:22:02,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836417141] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:22:02,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [288013676] [2023-11-21 22:22:02,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:02,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:22:02,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ae57aac-cfc6-46d2-a232-f76caa198384/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:22:02,441 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ae57aac-cfc6-46d2-a232-f76caa198384/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:22:02,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ae57aac-cfc6-46d2-a232-f76caa198384/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-21 22:22:02,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:22:02,578 INFO L262 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 38 conjunts are in the unsatisfiable core [2023-11-21 22:22:02,583 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:22:02,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:22:02,651 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 223 treesize of output 173 [2023-11-21 22:22:02,675 INFO L349 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2023-11-21 22:22:02,675 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 268 treesize of output 226 [2023-11-21 22:22:02,685 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 119 treesize of output 94 [2023-11-21 22:22:02,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:22:02,708 INFO L349 Elim1Store]: treesize reduction 76, result has 6.2 percent of original size [2023-11-21 22:22:02,709 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 110 treesize of output 99 [2023-11-21 22:22:02,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:22:02,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:22:02,727 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-21 22:22:02,734 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 46 [2023-11-21 22:22:02,744 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2023-11-21 22:22:02,750 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 37 [2023-11-21 22:22:02,762 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2023-11-21 22:22:02,769 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 23 [2023-11-21 22:22:02,786 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 217 treesize of output 167 [2023-11-21 22:22:02,816 INFO L349 Elim1Store]: treesize reduction 27, result has 10.0 percent of original size [2023-11-21 22:22:02,817 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 254 treesize of output 212 [2023-11-21 22:22:02,827 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 90 [2023-11-21 22:22:02,869 INFO L349 Elim1Store]: treesize reduction 68, result has 11.7 percent of original size [2023-11-21 22:22:02,870 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 255 treesize of output 278 [2023-11-21 22:22:02,881 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-21 22:22:02,883 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-21 22:22:02,891 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-21 22:22:02,893 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-21 22:22:02,998 INFO L349 Elim1Store]: treesize reduction 69, result has 45.7 percent of original size [2023-11-21 22:22:02,999 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 138 treesize of output 261 [2023-11-21 22:22:03,072 INFO L349 Elim1Store]: treesize reduction 42, result has 37.3 percent of original size [2023-11-21 22:22:03,073 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 375 treesize of output 323 [2023-11-21 22:22:03,108 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 159 treesize of output 137 [2023-11-21 22:22:03,161 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-11-21 22:22:03,232 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 52 [2023-11-21 22:22:03,550 INFO L349 Elim1Store]: treesize reduction 17, result has 37.0 percent of original size [2023-11-21 22:22:03,551 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 98 treesize of output 85 [2023-11-21 22:22:03,604 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2023-11-21 22:22:03,645 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2023-11-21 22:22:03,661 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-11-21 22:22:03,661 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 40 [2023-11-21 22:22:03,684 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-11-21 22:22:03,698 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2023-11-21 22:22:03,721 INFO L349 Elim1Store]: treesize reduction 50, result has 2.0 percent of original size [2023-11-21 22:22:03,721 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 1 [2023-11-21 22:22:03,732 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2023-11-21 22:22:03,740 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-11-21 22:22:03,780 INFO L349 Elim1Store]: treesize reduction 58, result has 15.9 percent of original size [2023-11-21 22:22:03,780 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 64 treesize of output 88 [2023-11-21 22:22:03,795 INFO L349 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2023-11-21 22:22:03,795 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 32 treesize of output 24 [2023-11-21 22:22:03,806 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2023-11-21 22:22:03,853 INFO L349 Elim1Store]: treesize reduction 52, result has 37.3 percent of original size [2023-11-21 22:22:03,854 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 48 [2023-11-21 22:22:03,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:22:03,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:22:03,963 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 267 treesize of output 209 [2023-11-21 22:22:03,975 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 166 treesize of output 141 [2023-11-21 22:22:03,999 INFO L349 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2023-11-21 22:22:03,999 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 324 treesize of output 256 [2023-11-21 22:22:04,009 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 250 treesize of output 184 [2023-11-21 22:22:04,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:22:04,034 INFO L349 Elim1Store]: treesize reduction 55, result has 8.3 percent of original size [2023-11-21 22:22:04,035 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 109 treesize of output 95 [2023-11-21 22:22:04,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:22:04,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:22:04,051 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 51 [2023-11-21 22:22:04,062 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 23 [2023-11-21 22:22:04,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:22:04,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:22:04,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:22:04,089 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 3 [2023-11-21 22:22:04,100 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2023-11-21 22:22:04,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:22:04,115 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 261 treesize of output 203 [2023-11-21 22:22:04,156 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-21 22:22:04,174 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 261 treesize of output 203 [2023-11-21 22:22:04,187 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 166 treesize of output 141 [2023-11-21 22:22:04,214 INFO L349 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2023-11-21 22:22:04,215 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 310 treesize of output 244 [2023-11-21 22:22:04,226 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 238 treesize of output 174 [2023-11-21 22:22:04,320 INFO L349 Elim1Store]: treesize reduction 176, result has 14.1 percent of original size [2023-11-21 22:22:04,321 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 265 treesize of output 302 [2023-11-21 22:22:04,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:22:04,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:22:04,350 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-21 22:22:04,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:22:04,561 INFO L349 Elim1Store]: treesize reduction 166, result has 25.6 percent of original size [2023-11-21 22:22:04,562 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 150 treesize of output 265 [2023-11-21 22:22:04,626 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2023-11-21 22:22:04,666 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 32 [2023-11-21 22:22:04,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:22:04,736 INFO L349 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2023-11-21 22:22:04,737 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 87 [2023-11-21 22:22:04,786 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-11-21 22:22:04,872 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2023-11-21 22:22:04,934 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2023-11-21 22:22:05,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:22:05,041 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-21 22:22:05,056 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-21 22:22:05,112 INFO L349 Elim1Store]: treesize reduction 49, result has 33.8 percent of original size [2023-11-21 22:22:05,112 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 72 treesize of output 56 [2023-11-21 22:22:05,145 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 121 [2023-11-21 22:22:05,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:22:05,223 INFO L349 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2023-11-21 22:22:05,223 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 49 treesize of output 15 [2023-11-21 22:22:05,748 INFO L349 Elim1Store]: treesize reduction 301, result has 17.5 percent of original size [2023-11-21 22:22:05,749 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 2286 treesize of output 1953 [2023-11-21 22:22:06,571 INFO L349 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2023-11-21 22:22:06,571 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 61 treesize of output 34 [2023-11-21 22:22:06,707 INFO L349 Elim1Store]: treesize reduction 62, result has 52.3 percent of original size [2023-11-21 22:22:06,708 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 225 treesize of output 254 [2023-11-21 22:22:06,734 INFO L349 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2023-11-21 22:22:06,735 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 76 treesize of output 47 [2023-11-21 22:22:07,074 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 255 treesize of output 197 [2023-11-21 22:22:07,086 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 166 treesize of output 141 [2023-11-21 22:22:07,099 INFO L349 Elim1Store]: treesize reduction 29, result has 3.3 percent of original size [2023-11-21 22:22:07,100 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 296 treesize of output 229 [2023-11-21 22:22:07,110 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 224 treesize of output 166 [2023-11-21 22:22:07,116 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-21 22:22:07,117 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-21 22:22:07,122 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 57 [2023-11-21 22:22:07,149 INFO L349 Elim1Store]: treesize reduction 176, result has 0.6 percent of original size [2023-11-21 22:22:07,150 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 216 treesize of output 229 [2023-11-21 22:22:07,165 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 180 treesize of output 162 [2023-11-21 22:22:07,179 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-21 22:22:07,196 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-21 22:22:07,206 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-21 22:22:08,663 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:22:08,664 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:22:09,038 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:22:09,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [288013676] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-21 22:22:09,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-21 22:22:09,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8, 7] total 21 [2023-11-21 22:22:09,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867012876] [2023-11-21 22:22:09,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:22:09,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-21 22:22:09,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:22:09,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-21 22:22:09,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=338, Unknown=0, NotChecked=0, Total=420 [2023-11-21 22:22:09,042 INFO L87 Difference]: Start difference. First operand 89 states and 100 transitions. Second operand has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 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) [2023-11-21 22:22:09,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:22:09,517 INFO L93 Difference]: Finished difference Result 149 states and 166 transitions. [2023-11-21 22:22:09,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-21 22:22:09,517 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 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 26 [2023-11-21 22:22:09,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:22:09,518 INFO L225 Difference]: With dead ends: 149 [2023-11-21 22:22:09,518 INFO L226 Difference]: Without dead ends: 147 [2023-11-21 22:22:09,519 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=128, Invalid=522, Unknown=0, NotChecked=0, Total=650 [2023-11-21 22:22:09,520 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 117 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-21 22:22:09,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 180 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-21 22:22:09,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2023-11-21 22:22:09,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 112. [2023-11-21 22:22:09,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 107 states have (on average 1.2242990654205608) internal successors, (131), 111 states have internal predecessors, (131), 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) [2023-11-21 22:22:09,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 131 transitions. [2023-11-21 22:22:09,551 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 131 transitions. Word has length 26 [2023-11-21 22:22:09,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:22:09,551 INFO L495 AbstractCegarLoop]: Abstraction has 112 states and 131 transitions. [2023-11-21 22:22:09,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 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) [2023-11-21 22:22:09,552 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 131 transitions. [2023-11-21 22:22:09,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-21 22:22:09,552 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:22:09,553 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] [2023-11-21 22:22:09,574 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ae57aac-cfc6-46d2-a232-f76caa198384/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-21 22:22:09,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ae57aac-cfc6-46d2-a232-f76caa198384/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-21 22:22:09,768 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2023-11-21 22:22:09,769 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:22:09,769 INFO L85 PathProgramCache]: Analyzing trace with hash -986820104, now seen corresponding path program 1 times [2023-11-21 22:22:09,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:22:09,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014519216] [2023-11-21 22:22:09,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:09,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:22:09,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:22:09,843 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:22:09,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:22:09,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014519216] [2023-11-21 22:22:09,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014519216] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:22:09,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1298740974] [2023-11-21 22:22:09,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:09,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:22:09,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ae57aac-cfc6-46d2-a232-f76caa198384/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:22:09,846 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ae57aac-cfc6-46d2-a232-f76caa198384/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:22:09,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ae57aac-cfc6-46d2-a232-f76caa198384/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-21 22:22:09,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:22:09,975 INFO L262 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 22:22:09,977 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:22:09,993 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:22:09,993 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:22:10,014 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:22:10,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1298740974] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:22:10,015 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 22:22:10,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 5 [2023-11-21 22:22:10,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757309999] [2023-11-21 22:22:10,017 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 22:22:10,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 22:22:10,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:22:10,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 22:22:10,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:22:10,021 INFO L87 Difference]: Start difference. First operand 112 states and 131 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 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) [2023-11-21 22:22:10,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:22:10,153 INFO L93 Difference]: Finished difference Result 156 states and 182 transitions. [2023-11-21 22:22:10,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 22:22:10,154 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 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 27 [2023-11-21 22:22:10,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:22:10,155 INFO L225 Difference]: With dead ends: 156 [2023-11-21 22:22:10,155 INFO L226 Difference]: Without dead ends: 154 [2023-11-21 22:22:10,155 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:22:10,156 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 18 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:22:10,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 118 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:22:10,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2023-11-21 22:22:10,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 135. [2023-11-21 22:22:10,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 130 states have (on average 1.2384615384615385) internal successors, (161), 134 states have internal predecessors, (161), 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) [2023-11-21 22:22:10,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 161 transitions. [2023-11-21 22:22:10,198 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 161 transitions. Word has length 27 [2023-11-21 22:22:10,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:22:10,198 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 161 transitions. [2023-11-21 22:22:10,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 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) [2023-11-21 22:22:10,198 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 161 transitions. [2023-11-21 22:22:10,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-21 22:22:10,199 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:22:10,199 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:22:10,225 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ae57aac-cfc6-46d2-a232-f76caa198384/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-21 22:22:10,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ae57aac-cfc6-46d2-a232-f76caa198384/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:22:10,412 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2023-11-21 22:22:10,413 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:22:10,413 INFO L85 PathProgramCache]: Analyzing trace with hash 159139316, now seen corresponding path program 1 times [2023-11-21 22:22:10,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:22:10,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409168860] [2023-11-21 22:22:10,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:10,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:22:10,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:22:10,602 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:22:10,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:22:10,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409168860] [2023-11-21 22:22:10,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409168860] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:22:10,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [482871430] [2023-11-21 22:22:10,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:10,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:22:10,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ae57aac-cfc6-46d2-a232-f76caa198384/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:22:10,604 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ae57aac-cfc6-46d2-a232-f76caa198384/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:22:10,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ae57aac-cfc6-46d2-a232-f76caa198384/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-21 22:22:10,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:22:10,747 INFO L262 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-21 22:22:10,764 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:22:10,768 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-21 22:22:10,772 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-21 22:22:10,777 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-21 22:22:10,900 INFO L349 Elim1Store]: treesize reduction 44, result has 38.0 percent of original size [2023-11-21 22:22:10,901 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 275 treesize of output 322 [2023-11-21 22:22:10,955 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-11-21 22:22:10,956 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 307 treesize of output 313 [2023-11-21 22:22:11,036 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 245 treesize of output 258 [2023-11-21 22:22:11,242 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-21 22:22:11,243 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 71 [2023-11-21 22:22:11,297 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 18 [2023-11-21 22:22:11,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:22:11,447 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 122 treesize of output 175 [2023-11-21 22:22:11,455 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 11 [2023-11-21 22:22:11,461 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-11-21 22:22:11,566 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-21 22:22:11,566 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 7 [2023-11-21 22:22:13,936 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-21 22:22:13,936 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:22:14,183 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-21 22:22:14,183 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 283 treesize of output 299 [2023-11-21 22:22:14,760 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-21 22:22:14,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [482871430] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:22:14,761 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 22:22:14,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2023-11-21 22:22:14,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911513168] [2023-11-21 22:22:14,762 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 22:22:14,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-21 22:22:14,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:22:14,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-21 22:22:14,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=106, Unknown=7, NotChecked=0, Total=156 [2023-11-21 22:22:14,764 INFO L87 Difference]: Start difference. First operand 135 states and 161 transitions. Second operand has 13 states, 13 states have (on average 5.538461538461538) internal successors, (72), 13 states have internal predecessors, (72), 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) [2023-11-21 22:22:16,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:22:16,431 INFO L93 Difference]: Finished difference Result 287 states and 333 transitions. [2023-11-21 22:22:16,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-21 22:22:16,432 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.538461538461538) internal successors, (72), 13 states have internal predecessors, (72), 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 29 [2023-11-21 22:22:16,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:22:16,434 INFO L225 Difference]: With dead ends: 287 [2023-11-21 22:22:16,434 INFO L226 Difference]: Without dead ends: 263 [2023-11-21 22:22:16,435 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=117, Invalid=289, Unknown=14, NotChecked=0, Total=420 [2023-11-21 22:22:16,435 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 186 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 12 mSolverCounterUnsat, 45 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 45 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-21 22:22:16,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 362 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 239 Invalid, 45 Unknown, 0 Unchecked, 0.9s Time] [2023-11-21 22:22:16,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2023-11-21 22:22:16,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 179. [2023-11-21 22:22:16,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 174 states have (on average 1.235632183908046) internal successors, (215), 178 states have internal predecessors, (215), 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) [2023-11-21 22:22:16,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 215 transitions. [2023-11-21 22:22:16,517 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 215 transitions. Word has length 29 [2023-11-21 22:22:16,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:22:16,518 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 215 transitions. [2023-11-21 22:22:16,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.538461538461538) internal successors, (72), 13 states have internal predecessors, (72), 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) [2023-11-21 22:22:16,518 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 215 transitions. [2023-11-21 22:22:16,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-21 22:22:16,519 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:22:16,519 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] [2023-11-21 22:22:16,540 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ae57aac-cfc6-46d2-a232-f76caa198384/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-21 22:22:16,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ae57aac-cfc6-46d2-a232-f76caa198384/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-21 22:22:16,734 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2023-11-21 22:22:16,734 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:22:16,734 INFO L85 PathProgramCache]: Analyzing trace with hash -867448838, now seen corresponding path program 1 times [2023-11-21 22:22:16,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:22:16,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887080788] [2023-11-21 22:22:16,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:16,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:22:16,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:22:17,367 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-21 22:22:17,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:22:17,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887080788] [2023-11-21 22:22:17,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887080788] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:22:17,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:22:17,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-21 22:22:17,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907606990] [2023-11-21 22:22:17,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:22:17,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-21 22:22:17,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:22:17,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-21 22:22:17,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-21 22:22:17,370 INFO L87 Difference]: Start difference. First operand 179 states and 215 transitions. Second operand has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 6 states have internal predecessors, (29), 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) [2023-11-21 22:22:17,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:22:17,837 INFO L93 Difference]: Finished difference Result 212 states and 245 transitions. [2023-11-21 22:22:17,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-21 22:22:17,837 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 6 states have internal predecessors, (29), 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 29 [2023-11-21 22:22:17,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:22:17,840 INFO L225 Difference]: With dead ends: 212 [2023-11-21 22:22:17,840 INFO L226 Difference]: Without dead ends: 197 [2023-11-21 22:22:17,843 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2023-11-21 22:22:17,843 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 138 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-21 22:22:17,844 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 189 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-21 22:22:17,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2023-11-21 22:22:17,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 175. [2023-11-21 22:22:17,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 170 states have (on average 1.223529411764706) internal successors, (208), 174 states have internal predecessors, (208), 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) [2023-11-21 22:22:17,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 208 transitions. [2023-11-21 22:22:17,912 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 208 transitions. Word has length 29 [2023-11-21 22:22:17,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:22:17,912 INFO L495 AbstractCegarLoop]: Abstraction has 175 states and 208 transitions. [2023-11-21 22:22:17,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 6 states have internal predecessors, (29), 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) [2023-11-21 22:22:17,913 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 208 transitions. [2023-11-21 22:22:17,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-21 22:22:17,913 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:22:17,914 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-21 22:22:17,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-21 22:22:17,914 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2023-11-21 22:22:17,914 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:22:17,915 INFO L85 PathProgramCache]: Analyzing trace with hash 809233473, now seen corresponding path program 1 times [2023-11-21 22:22:17,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:22:17,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340750611] [2023-11-21 22:22:17,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:17,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:22:17,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:22:17,955 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:22:17,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:22:18,012 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:22:18,013 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 22:22:18,014 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION (12 of 13 remaining) [2023-11-21 22:22:18,016 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (11 of 13 remaining) [2023-11-21 22:22:18,017 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (10 of 13 remaining) [2023-11-21 22:22:18,017 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (9 of 13 remaining) [2023-11-21 22:22:18,017 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (8 of 13 remaining) [2023-11-21 22:22:18,017 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (7 of 13 remaining) [2023-11-21 22:22:18,018 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (6 of 13 remaining) [2023-11-21 22:22:18,018 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION (5 of 13 remaining) [2023-11-21 22:22:18,018 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION (4 of 13 remaining) [2023-11-21 22:22:18,018 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION (3 of 13 remaining) [2023-11-21 22:22:18,018 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION (2 of 13 remaining) [2023-11-21 22:22:18,019 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION (1 of 13 remaining) [2023-11-21 22:22:18,019 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION (0 of 13 remaining) [2023-11-21 22:22:18,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-21 22:22:18,022 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:22:18,028 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 22:22:18,067 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem5 [2023-11-21 22:22:18,068 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc3 [2023-11-21 22:22:18,068 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem4 [2023-11-21 22:22:18,069 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc3 [2023-11-21 22:22:18,069 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem4 [2023-11-21 22:22:18,069 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem5 [2023-11-21 22:22:18,069 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem4 [2023-11-21 22:22:18,070 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem5 [2023-11-21 22:22:18,070 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc3 [2023-11-21 22:22:18,071 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc3 [2023-11-21 22:22:18,071 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem5 [2023-11-21 22:22:18,071 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem4 [2023-11-21 22:22:18,071 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem5 [2023-11-21 22:22:18,072 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem4 [2023-11-21 22:22:18,072 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc3 [2023-11-21 22:22:18,073 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem4 [2023-11-21 22:22:18,073 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem5 [2023-11-21 22:22:18,073 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem23 [2023-11-21 22:22:18,073 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc3 [2023-11-21 22:22:18,073 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem5 [2023-11-21 22:22:18,074 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc3 [2023-11-21 22:22:18,074 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem23 [2023-11-21 22:22:18,074 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem4 [2023-11-21 22:22:18,074 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem5 [2023-11-21 22:22:18,074 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem23 [2023-11-21 22:22:18,075 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem4 [2023-11-21 22:22:18,075 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc3 [2023-11-21 22:22:18,088 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 10:22:18 BoogieIcfgContainer [2023-11-21 22:22:18,089 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 22:22:18,091 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 22:22:18,091 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 22:22:18,091 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 22:22:18,092 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:21:51" (3/4) ... [2023-11-21 22:22:18,093 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-21 22:22:18,109 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc3 [2023-11-21 22:22:18,110 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem4 [2023-11-21 22:22:18,110 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem5 [2023-11-21 22:22:18,111 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem4 [2023-11-21 22:22:18,111 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem5 [2023-11-21 22:22:18,111 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc3 [2023-11-21 22:22:18,111 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc3 [2023-11-21 22:22:18,111 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem5 [2023-11-21 22:22:18,112 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem4 [2023-11-21 22:22:18,112 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc3 [2023-11-21 22:22:18,112 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem5 [2023-11-21 22:22:18,112 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem4 [2023-11-21 22:22:18,113 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc3 [2023-11-21 22:22:18,113 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem5 [2023-11-21 22:22:18,113 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem4 [2023-11-21 22:22:18,114 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem23 [2023-11-21 22:22:18,114 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc3 [2023-11-21 22:22:18,114 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem4 [2023-11-21 22:22:18,115 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem5 [2023-11-21 22:22:18,115 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem5 [2023-11-21 22:22:18,115 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc3 [2023-11-21 22:22:18,115 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem23 [2023-11-21 22:22:18,115 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem4 [2023-11-21 22:22:18,121 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem5 [2023-11-21 22:22:18,121 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc3 [2023-11-21 22:22:18,121 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem4 [2023-11-21 22:22:18,121 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem23 [2023-11-21 22:22:18,169 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ae57aac-cfc6-46d2-a232-f76caa198384/bin/uautomizer-verify-bycVGegfSx/witness.graphml [2023-11-21 22:22:18,169 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 22:22:18,170 INFO L158 Benchmark]: Toolchain (without parser) took 28541.93ms. Allocated memory was 136.3MB in the beginning and 448.8MB in the end (delta: 312.5MB). Free memory was 89.3MB in the beginning and 289.6MB in the end (delta: -200.3MB). Peak memory consumption was 113.9MB. Max. memory is 16.1GB. [2023-11-21 22:22:18,171 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 100.7MB. Free memory is still 46.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:22:18,176 INFO L158 Benchmark]: CACSL2BoogieTranslator took 613.61ms. Allocated memory is still 136.3MB. Free memory was 89.3MB in the beginning and 68.6MB in the end (delta: 20.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-21 22:22:18,177 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.62ms. Allocated memory is still 136.3MB. Free memory was 68.6MB in the beginning and 66.3MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:22:18,178 INFO L158 Benchmark]: Boogie Preprocessor took 83.27ms. Allocated memory is still 136.3MB. Free memory was 66.3MB in the beginning and 62.8MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:22:18,183 INFO L158 Benchmark]: RCFGBuilder took 915.49ms. Allocated memory was 136.3MB in the beginning and 176.2MB in the end (delta: 39.8MB). Free memory was 62.8MB in the beginning and 126.7MB in the end (delta: -64.0MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. [2023-11-21 22:22:18,184 INFO L158 Benchmark]: TraceAbstraction took 26777.11ms. Allocated memory was 176.2MB in the beginning and 448.8MB in the end (delta: 272.6MB). Free memory was 125.5MB in the beginning and 293.8MB in the end (delta: -168.3MB). Peak memory consumption was 104.2MB. Max. memory is 16.1GB. [2023-11-21 22:22:18,184 INFO L158 Benchmark]: Witness Printer took 78.56ms. Allocated memory is still 448.8MB. Free memory was 293.8MB in the beginning and 289.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 22:22:18,185 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 100.7MB. Free memory is still 46.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 613.61ms. Allocated memory is still 136.3MB. Free memory was 89.3MB in the beginning and 68.6MB in the end (delta: 20.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.62ms. Allocated memory is still 136.3MB. Free memory was 68.6MB in the beginning and 66.3MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 83.27ms. Allocated memory is still 136.3MB. Free memory was 66.3MB in the beginning and 62.8MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 915.49ms. Allocated memory was 136.3MB in the beginning and 176.2MB in the end (delta: 39.8MB). Free memory was 62.8MB in the beginning and 126.7MB in the end (delta: -64.0MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. * TraceAbstraction took 26777.11ms. Allocated memory was 176.2MB in the beginning and 448.8MB in the end (delta: 272.6MB). Free memory was 125.5MB in the beginning and 293.8MB in the end (delta: -168.3MB). Peak memory consumption was 104.2MB. Max. memory is 16.1GB. * Witness Printer took 78.56ms. Allocated memory is still 448.8MB. Free memory was 293.8MB in the beginning and 289.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem5 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~malloc3 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem4 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~malloc3 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem4 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem5 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem4 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem5 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~malloc3 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~malloc3 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem5 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem4 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem5 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem4 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~malloc3 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem4 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem5 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem23 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~malloc3 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem5 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~malloc3 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem23 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem4 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem5 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem23 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem4 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~malloc3 - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~malloc3 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem4 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem5 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem4 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem5 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~malloc3 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~malloc3 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem5 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem4 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~malloc3 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem5 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem4 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~malloc3 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem5 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem4 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem23 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~malloc3 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem4 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem5 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem5 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~malloc3 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem23 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem4 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem5 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~malloc3 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem4 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem23 - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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 - CounterExampleResult [Line: 1036]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1002] SLL* list = malloc(sizeof(SLL)); [L1003] list->next = ((void*)0) [L1004] COND FALSE !(!(list != ((void*)0))) VAL [list={-1:0}] [L1004] COND FALSE !(__VERIFIER_nondet_int()) [L1004] list->inner = malloc(sizeof(SLL)) [L1004] EXPR list->inner [L1004] list->inner->next = ((void*)0) [L1004] EXPR list->inner [L1004] list->inner->inner = ((void*)0) [L1004] EXPR list->inner [L1004] EXPR list->inner != ((void*)0) || list->inner == ((void*)0) [L1004] EXPR list->inner != ((void*)0) || list->inner == ((void*)0) [L1004] COND FALSE !(!(list->inner != ((void*)0) || list->inner == ((void*)0))) [L1006] SLL* end = list; VAL [end={-1:0}, list={-1:0}] [L1009] COND FALSE !(__VERIFIER_nondet_int()) [L1019] end = ((void*)0) [L1020] end = list VAL [end={-1:0}, list={-1:0}] [L1023] COND FALSE !(!(((void*)0) != end)) VAL [end={-1:0}, list={-1:0}] [L1025] COND TRUE ((void*)0) != end [L1027] int len = 0; [L1028] EXPR end->inner [L1028] SLL* inner = end->inner; [L1029] COND TRUE ((void*)0) != inner [L1031] COND TRUE len == 0 [L1032] len = 1 VAL [end={-1:0}, inner={-2:0}, len=1, list={-1:0}] [L1035] COND FALSE !(!(((void*)0) != inner)) VAL [end={-1:0}, inner={-2:0}, len=1, list={-1:0}] [L1036] EXPR inner->inner [L1036] COND FALSE !(!(((void*)0) == inner->inner)) [L1037] EXPR inner->next [L1037] COND FALSE !(!(((void*)0) == inner->next)) [L1038] EXPR inner->inner [L1038] inner = inner->inner [L1039] COND TRUE len == 1 [L1040] EXPR inner->inner [L1040] inner = inner->inner [L1029] COND TRUE ((void*)0) != inner [L1031] COND FALSE !(len == 0) [L1034] len = 2 VAL [end={-1:0}, inner={59:6}, len=2, list={-1:0}] [L1035] COND FALSE !(!(((void*)0) != inner)) VAL [end={-1:0}, inner={59:6}, len=2, list={-1:0}] [L1036] EXPR inner->inner [L1036] COND TRUE !(((void*)0) == inner->inner) [L1036] reach_error() VAL [end={-1:0}, inner={59:6}, len=2, list={-1:0}] - UnprovableResult [Line: 1004]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1004]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1015]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1016]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1016]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1023]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1035]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1037]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1042]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1054]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1055]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1056]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 74 locations, 13 error locations. Started 1 CEGAR loops. OverallTime: 26.6s, OverallIterations: 16, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 45 mSolverCounterUnknown, 1498 SdHoareTripleChecker+Valid, 3.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1498 mSDsluCounter, 2358 SdHoareTripleChecker+Invalid, 2.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1619 mSDsCounter, 82 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1215 IncrementalHoareTripleChecker+Invalid, 1342 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 82 mSolverCounterUnsat, 739 mSDtfsCounter, 1215 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 316 GetRequests, 201 SyntacticMatches, 1 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 354 ImplicationChecksByTransitivity, 3.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=179occurred in iteration=14, InterpolantAutomatonStates: 100, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 15 MinimizatonAttempts, 412 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 17.7s InterpolantComputationTime, 426 NumberOfCodeBlocks, 426 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 480 ConstructedInterpolants, 36 QuantifiedInterpolants, 15683 SizeOfPredicates, 60 NumberOfNonLiveVariables, 580 ConjunctsInSsa, 97 ConjunctsInUnsatCore, 23 InterpolantComputations, 12 PerfectInterpolantSequences, 11/23 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 RESULT: Ultimate proved your program to be incorrect! [2023-11-21 22:22:18,228 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ae57aac-cfc6-46d2-a232-f76caa198384/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE