./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f857abf8-3edc-4f16-a201-59bf9d04a56c/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f857abf8-3edc-4f16-a201-59bf9d04a56c/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f857abf8-3edc-4f16-a201-59bf9d04a56c/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f857abf8-3edc-4f16-a201-59bf9d04a56c/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f857abf8-3edc-4f16-a201-59bf9d04a56c/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f857abf8-3edc-4f16-a201-59bf9d04a56c/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 700a368a7186f7babba672e6f0e63377b52860406179fc124b8eed545215de4f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 08:03:20,773 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 08:03:20,864 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f857abf8-3edc-4f16-a201-59bf9d04a56c/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-19 08:03:20,869 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 08:03:20,870 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 08:03:20,896 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 08:03:20,897 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 08:03:20,897 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 08:03:20,898 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 08:03:20,899 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 08:03:20,900 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 08:03:20,900 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 08:03:20,901 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 08:03:20,901 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 08:03:20,902 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 08:03:20,902 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 08:03:20,903 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 08:03:20,903 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 08:03:20,904 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 08:03:20,904 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 08:03:20,905 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 08:03:20,905 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 08:03:20,906 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 08:03:20,906 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 08:03:20,907 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 08:03:20,907 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 08:03:20,908 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 08:03:20,908 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 08:03:20,908 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:03:20,909 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 08:03:20,909 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 08:03:20,910 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 08:03:20,910 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 08:03:20,910 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 08:03:20,910 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 08:03:20,911 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 08:03:20,911 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 08:03:20,911 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 08:03:20,911 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 08:03:20,911 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_f857abf8-3edc-4f16-a201-59bf9d04a56c/bin/uautomizer-verify-uCwYo4JHxu/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f857abf8-3edc-4f16-a201-59bf9d04a56c/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 700a368a7186f7babba672e6f0e63377b52860406179fc124b8eed545215de4f [2023-11-19 08:03:21,183 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 08:03:21,215 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 08:03:21,218 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 08:03:21,220 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 08:03:21,220 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 08:03:21,222 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f857abf8-3edc-4f16-a201-59bf9d04a56c/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c [2023-11-19 08:03:24,387 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 08:03:24,850 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 08:03:24,851 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f857abf8-3edc-4f16-a201-59bf9d04a56c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c [2023-11-19 08:03:24,886 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f857abf8-3edc-4f16-a201-59bf9d04a56c/bin/uautomizer-verify-uCwYo4JHxu/data/735c91970/423be9ef354a4f4aa3ce12dc97be71cd/FLAG08bcad873 [2023-11-19 08:03:24,904 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f857abf8-3edc-4f16-a201-59bf9d04a56c/bin/uautomizer-verify-uCwYo4JHxu/data/735c91970/423be9ef354a4f4aa3ce12dc97be71cd [2023-11-19 08:03:24,911 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 08:03:24,913 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 08:03:24,917 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 08:03:24,917 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 08:03:24,923 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 08:03:24,925 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:03:24" (1/1) ... [2023-11-19 08:03:24,926 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22c17bdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:24, skipping insertion in model container [2023-11-19 08:03:24,927 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:03:24" (1/1) ... [2023-11-19 08:03:25,156 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 08:03:25,683 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_f857abf8-3edc-4f16-a201-59bf9d04a56c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[14181,14194] [2023-11-19 08:03:25,747 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_f857abf8-3edc-4f16-a201-59bf9d04a56c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[18885,18898] [2023-11-19 08:03:25,774 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_f857abf8-3edc-4f16-a201-59bf9d04a56c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[20177,20190] [2023-11-19 08:03:25,787 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_f857abf8-3edc-4f16-a201-59bf9d04a56c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[20935,20948] [2023-11-19 08:03:25,802 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_f857abf8-3edc-4f16-a201-59bf9d04a56c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[22598,22611] [2023-11-19 08:03:25,812 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_f857abf8-3edc-4f16-a201-59bf9d04a56c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[23356,23369] [2023-11-19 08:03:25,836 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_f857abf8-3edc-4f16-a201-59bf9d04a56c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[24485,24498] [2023-11-19 08:03:25,866 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_f857abf8-3edc-4f16-a201-59bf9d04a56c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[27110,27123] [2023-11-19 08:03:25,873 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_f857abf8-3edc-4f16-a201-59bf9d04a56c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[27871,27884] [2023-11-19 08:03:25,884 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f857abf8-3edc-4f16-a201-59bf9d04a56c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[29003,29016] [2023-11-19 08:03:25,902 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_f857abf8-3edc-4f16-a201-59bf9d04a56c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[31094,31107] [2023-11-19 08:03:25,936 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_f857abf8-3edc-4f16-a201-59bf9d04a56c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[35189,35202] [2023-11-19 08:03:25,946 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_f857abf8-3edc-4f16-a201-59bf9d04a56c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[35950,35963] [2023-11-19 08:03:25,961 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_f857abf8-3edc-4f16-a201-59bf9d04a56c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[37043,37056] [2023-11-19 08:03:25,974 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_f857abf8-3edc-4f16-a201-59bf9d04a56c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[39095,39108] [2023-11-19 08:03:26,001 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_f857abf8-3edc-4f16-a201-59bf9d04a56c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[42827,42840] [2023-11-19 08:03:26,049 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_f857abf8-3edc-4f16-a201-59bf9d04a56c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[50005,50018] [2023-11-19 08:03:26,055 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_f857abf8-3edc-4f16-a201-59bf9d04a56c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[50766,50779] [2023-11-19 08:03:26,066 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_f857abf8-3edc-4f16-a201-59bf9d04a56c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[51898,51911] [2023-11-19 08:03:26,083 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_f857abf8-3edc-4f16-a201-59bf9d04a56c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[53989,54002] [2023-11-19 08:03:26,109 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_f857abf8-3edc-4f16-a201-59bf9d04a56c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[57550,57563] [2023-11-19 08:03:26,151 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_f857abf8-3edc-4f16-a201-59bf9d04a56c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[63548,63561] [2023-11-19 08:03:26,631 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:03:26,654 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 08:03:26,736 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_f857abf8-3edc-4f16-a201-59bf9d04a56c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[14181,14194] [2023-11-19 08:03:26,752 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_f857abf8-3edc-4f16-a201-59bf9d04a56c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[18885,18898] [2023-11-19 08:03:26,759 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_f857abf8-3edc-4f16-a201-59bf9d04a56c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[20177,20190] [2023-11-19 08:03:26,774 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_f857abf8-3edc-4f16-a201-59bf9d04a56c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[20935,20948] [2023-11-19 08:03:26,784 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_f857abf8-3edc-4f16-a201-59bf9d04a56c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[22598,22611] [2023-11-19 08:03:26,794 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_f857abf8-3edc-4f16-a201-59bf9d04a56c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[23356,23369] [2023-11-19 08:03:26,800 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_f857abf8-3edc-4f16-a201-59bf9d04a56c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[24485,24498] [2023-11-19 08:03:26,816 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_f857abf8-3edc-4f16-a201-59bf9d04a56c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[27110,27123] [2023-11-19 08:03:26,822 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_f857abf8-3edc-4f16-a201-59bf9d04a56c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[27871,27884] [2023-11-19 08:03:26,829 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_f857abf8-3edc-4f16-a201-59bf9d04a56c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[29003,29016] [2023-11-19 08:03:26,841 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_f857abf8-3edc-4f16-a201-59bf9d04a56c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[31094,31107] [2023-11-19 08:03:26,867 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_f857abf8-3edc-4f16-a201-59bf9d04a56c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[35189,35202] [2023-11-19 08:03:26,872 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_f857abf8-3edc-4f16-a201-59bf9d04a56c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[35950,35963] [2023-11-19 08:03:26,879 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_f857abf8-3edc-4f16-a201-59bf9d04a56c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[37043,37056] [2023-11-19 08:03:26,889 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_f857abf8-3edc-4f16-a201-59bf9d04a56c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[39095,39108] [2023-11-19 08:03:26,909 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_f857abf8-3edc-4f16-a201-59bf9d04a56c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[42827,42840] [2023-11-19 08:03:26,954 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_f857abf8-3edc-4f16-a201-59bf9d04a56c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[50005,50018] [2023-11-19 08:03:26,960 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_f857abf8-3edc-4f16-a201-59bf9d04a56c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[50766,50779] [2023-11-19 08:03:26,969 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_f857abf8-3edc-4f16-a201-59bf9d04a56c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[51898,51911] [2023-11-19 08:03:26,980 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_f857abf8-3edc-4f16-a201-59bf9d04a56c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[53989,54002] [2023-11-19 08:03:27,010 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_f857abf8-3edc-4f16-a201-59bf9d04a56c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[57550,57563] [2023-11-19 08:03:27,036 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_f857abf8-3edc-4f16-a201-59bf9d04a56c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[63548,63561] [2023-11-19 08:03:27,355 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:03:27,383 INFO L206 MainTranslator]: Completed translation [2023-11-19 08:03:27,384 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:27 WrapperNode [2023-11-19 08:03:27,384 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 08:03:27,385 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 08:03:27,386 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 08:03:27,386 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 08:03:27,394 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:27" (1/1) ... [2023-11-19 08:03:27,453 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:27" (1/1) ... [2023-11-19 08:03:27,651 INFO L138 Inliner]: procedures = 25, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 7077 [2023-11-19 08:03:27,651 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 08:03:27,652 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 08:03:27,652 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 08:03:27,653 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 08:03:27,662 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:27" (1/1) ... [2023-11-19 08:03:27,663 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:27" (1/1) ... [2023-11-19 08:03:27,688 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:27" (1/1) ... [2023-11-19 08:03:27,688 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:27" (1/1) ... [2023-11-19 08:03:27,770 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:27" (1/1) ... [2023-11-19 08:03:27,797 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:27" (1/1) ... [2023-11-19 08:03:27,816 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:27" (1/1) ... [2023-11-19 08:03:27,830 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:27" (1/1) ... [2023-11-19 08:03:27,861 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 08:03:27,862 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 08:03:27,862 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 08:03:27,862 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 08:03:27,863 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:27" (1/1) ... [2023-11-19 08:03:27,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:03:27,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f857abf8-3edc-4f16-a201-59bf9d04a56c/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:03:27,894 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f857abf8-3edc-4f16-a201-59bf9d04a56c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 08:03:27,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f857abf8-3edc-4f16-a201-59bf9d04a56c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 08:03:27,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 08:03:27,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 08:03:27,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 08:03:27,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 08:03:28,317 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 08:03:28,320 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 08:03:31,799 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 08:03:31,826 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 08:03:31,826 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 08:03:31,840 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:03:31 BoogieIcfgContainer [2023-11-19 08:03:31,840 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 08:03:31,844 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 08:03:31,844 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 08:03:31,848 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 08:03:31,848 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:03:24" (1/3) ... [2023-11-19 08:03:31,849 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32e0244d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:03:31, skipping insertion in model container [2023-11-19 08:03:31,849 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:27" (2/3) ... [2023-11-19 08:03:31,851 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32e0244d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:03:31, skipping insertion in model container [2023-11-19 08:03:31,852 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:03:31" (3/3) ... [2023-11-19 08:03:31,853 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c [2023-11-19 08:03:31,872 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 08:03:31,872 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2023-11-19 08:03:31,965 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 08:03:31,972 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;@4812bb5d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 08:03:31,972 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2023-11-19 08:03:31,982 INFO L276 IsEmpty]: Start isEmpty. Operand has 1132 states, 1108 states have (on average 1.855595667870036) internal successors, (2056), 1131 states have internal predecessors, (2056), 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) [2023-11-19 08:03:32,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-11-19 08:03:32,008 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:03:32,009 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:03:32,009 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-11-19 08:03:32,014 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:32,044 INFO L85 PathProgramCache]: Analyzing trace with hash -1995797141, now seen corresponding path program 1 times [2023-11-19 08:03:32,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:03:32,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681171741] [2023-11-19 08:03:32,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:32,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:03:32,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:32,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:03:32,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:03:32,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681171741] [2023-11-19 08:03:32,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681171741] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:03:32,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:03:32,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 08:03:32,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510362433] [2023-11-19 08:03:32,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:03:32,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 08:03:32,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:03:32,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 08:03:32,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:03:32,862 INFO L87 Difference]: Start difference. First operand has 1132 states, 1108 states have (on average 1.855595667870036) internal successors, (2056), 1131 states have internal predecessors, (2056), 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 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 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) [2023-11-19 08:03:33,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:03:33,815 INFO L93 Difference]: Finished difference Result 1717 states and 3012 transitions. [2023-11-19 08:03:33,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 08:03:33,821 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 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 86 [2023-11-19 08:03:33,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:03:33,848 INFO L225 Difference]: With dead ends: 1717 [2023-11-19 08:03:33,849 INFO L226 Difference]: Without dead ends: 874 [2023-11-19 08:03:33,859 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-19 08:03:33,870 INFO L413 NwaCegarLoop]: 1034 mSDtfsCounter, 4517 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4517 SdHoareTripleChecker+Valid, 1048 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-19 08:03:33,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4517 Valid, 1048 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 500 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-19 08:03:33,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 874 states. [2023-11-19 08:03:33,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 874 to 874. [2023-11-19 08:03:33,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 874 states, 852 states have (on average 1.3157276995305165) internal successors, (1121), 873 states have internal predecessors, (1121), 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) [2023-11-19 08:03:33,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 874 states to 874 states and 1121 transitions. [2023-11-19 08:03:33,972 INFO L78 Accepts]: Start accepts. Automaton has 874 states and 1121 transitions. Word has length 86 [2023-11-19 08:03:33,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:03:33,973 INFO L495 AbstractCegarLoop]: Abstraction has 874 states and 1121 transitions. [2023-11-19 08:03:33,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 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) [2023-11-19 08:03:33,974 INFO L276 IsEmpty]: Start isEmpty. Operand 874 states and 1121 transitions. [2023-11-19 08:03:33,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-11-19 08:03:33,979 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:03:33,979 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:03:33,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 08:03:33,980 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-11-19 08:03:33,980 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:33,981 INFO L85 PathProgramCache]: Analyzing trace with hash -1029751, now seen corresponding path program 1 times [2023-11-19 08:03:33,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:03:33,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328030146] [2023-11-19 08:03:33,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:33,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:03:34,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:34,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:03:34,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:03:34,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328030146] [2023-11-19 08:03:34,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328030146] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:03:34,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:03:34,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 08:03:34,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618577422] [2023-11-19 08:03:34,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:03:34,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 08:03:34,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:03:34,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 08:03:34,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:03:34,293 INFO L87 Difference]: Start difference. First operand 874 states and 1121 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 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) [2023-11-19 08:03:34,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:03:34,959 INFO L93 Difference]: Finished difference Result 1448 states and 1911 transitions. [2023-11-19 08:03:34,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 08:03:34,959 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 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 87 [2023-11-19 08:03:34,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:03:34,964 INFO L225 Difference]: With dead ends: 1448 [2023-11-19 08:03:34,965 INFO L226 Difference]: Without dead ends: 770 [2023-11-19 08:03:34,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-19 08:03:34,972 INFO L413 NwaCegarLoop]: 530 mSDtfsCounter, 2889 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2889 SdHoareTripleChecker+Valid, 566 SdHoareTripleChecker+Invalid, 499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-19 08:03:34,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2889 Valid, 566 Invalid, 499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-19 08:03:34,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 770 states. [2023-11-19 08:03:34,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 770 to 770. [2023-11-19 08:03:34,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 770 states, 748 states have (on average 1.3368983957219251) internal successors, (1000), 769 states have internal predecessors, (1000), 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) [2023-11-19 08:03:34,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 770 states to 770 states and 1000 transitions. [2023-11-19 08:03:34,996 INFO L78 Accepts]: Start accepts. Automaton has 770 states and 1000 transitions. Word has length 87 [2023-11-19 08:03:34,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:03:34,999 INFO L495 AbstractCegarLoop]: Abstraction has 770 states and 1000 transitions. [2023-11-19 08:03:35,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 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) [2023-11-19 08:03:35,003 INFO L276 IsEmpty]: Start isEmpty. Operand 770 states and 1000 transitions. [2023-11-19 08:03:35,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-11-19 08:03:35,007 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:03:35,007 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:03:35,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 08:03:35,009 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-11-19 08:03:35,019 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:35,020 INFO L85 PathProgramCache]: Analyzing trace with hash -1805729392, now seen corresponding path program 1 times [2023-11-19 08:03:35,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:03:35,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043560586] [2023-11-19 08:03:35,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:35,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:03:35,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:35,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:03:35,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:03:35,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043560586] [2023-11-19 08:03:35,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043560586] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:03:35,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:03:35,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 08:03:35,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384832084] [2023-11-19 08:03:35,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:03:35,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 08:03:35,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:03:35,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 08:03:35,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:03:35,333 INFO L87 Difference]: Start difference. First operand 770 states and 1000 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 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) [2023-11-19 08:03:35,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:03:35,983 INFO L93 Difference]: Finished difference Result 1344 states and 1789 transitions. [2023-11-19 08:03:35,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 08:03:35,984 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 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 88 [2023-11-19 08:03:35,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:03:35,991 INFO L225 Difference]: With dead ends: 1344 [2023-11-19 08:03:35,991 INFO L226 Difference]: Without dead ends: 706 [2023-11-19 08:03:35,992 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-19 08:03:35,995 INFO L413 NwaCegarLoop]: 506 mSDtfsCounter, 2688 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2688 SdHoareTripleChecker+Valid, 534 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-19 08:03:36,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2688 Valid, 534 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-19 08:03:36,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2023-11-19 08:03:36,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 706. [2023-11-19 08:03:36,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 706 states, 684 states have (on average 1.355263157894737) internal successors, (927), 705 states have internal predecessors, (927), 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) [2023-11-19 08:03:36,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 927 transitions. [2023-11-19 08:03:36,021 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 927 transitions. Word has length 88 [2023-11-19 08:03:36,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:03:36,022 INFO L495 AbstractCegarLoop]: Abstraction has 706 states and 927 transitions. [2023-11-19 08:03:36,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 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) [2023-11-19 08:03:36,023 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 927 transitions. [2023-11-19 08:03:36,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-19 08:03:36,026 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:03:36,026 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:03:36,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 08:03:36,027 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-11-19 08:03:36,028 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:36,029 INFO L85 PathProgramCache]: Analyzing trace with hash 19097864, now seen corresponding path program 1 times [2023-11-19 08:03:36,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:03:36,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662450119] [2023-11-19 08:03:36,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:36,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:03:36,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:36,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:03:36,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:03:36,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662450119] [2023-11-19 08:03:36,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662450119] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:03:36,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:03:36,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 08:03:36,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616482518] [2023-11-19 08:03:36,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:03:36,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 08:03:36,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:03:36,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 08:03:36,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:03:36,282 INFO L87 Difference]: Start difference. First operand 706 states and 927 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 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) [2023-11-19 08:03:36,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:03:36,834 INFO L93 Difference]: Finished difference Result 1280 states and 1715 transitions. [2023-11-19 08:03:36,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 08:03:36,835 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 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 89 [2023-11-19 08:03:36,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:03:36,839 INFO L225 Difference]: With dead ends: 1280 [2023-11-19 08:03:36,839 INFO L226 Difference]: Without dead ends: 665 [2023-11-19 08:03:36,840 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-19 08:03:36,844 INFO L413 NwaCegarLoop]: 497 mSDtfsCounter, 2576 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2576 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-19 08:03:36,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2576 Valid, 509 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-19 08:03:36,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2023-11-19 08:03:36,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 665. [2023-11-19 08:03:36,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 665 states, 643 states have (on average 1.370139968895801) internal successors, (881), 664 states have internal predecessors, (881), 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) [2023-11-19 08:03:36,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 881 transitions. [2023-11-19 08:03:36,865 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 881 transitions. Word has length 89 [2023-11-19 08:03:36,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:03:36,865 INFO L495 AbstractCegarLoop]: Abstraction has 665 states and 881 transitions. [2023-11-19 08:03:36,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 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) [2023-11-19 08:03:36,866 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 881 transitions. [2023-11-19 08:03:36,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-11-19 08:03:36,872 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:03:36,873 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:03:36,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 08:03:36,873 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-11-19 08:03:36,874 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:36,874 INFO L85 PathProgramCache]: Analyzing trace with hash 817016169, now seen corresponding path program 1 times [2023-11-19 08:03:36,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:03:36,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650911385] [2023-11-19 08:03:36,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:36,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:03:36,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:37,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:03:37,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:03:37,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650911385] [2023-11-19 08:03:37,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650911385] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:03:37,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:03:37,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 08:03:37,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460262783] [2023-11-19 08:03:37,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:03:37,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 08:03:37,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:03:37,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 08:03:37,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:03:37,126 INFO L87 Difference]: Start difference. First operand 665 states and 881 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 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) [2023-11-19 08:03:37,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:03:37,718 INFO L93 Difference]: Finished difference Result 1239 states and 1668 transitions. [2023-11-19 08:03:37,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 08:03:37,719 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 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 90 [2023-11-19 08:03:37,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:03:37,723 INFO L225 Difference]: With dead ends: 1239 [2023-11-19 08:03:37,723 INFO L226 Difference]: Without dead ends: 646 [2023-11-19 08:03:37,724 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-19 08:03:37,725 INFO L413 NwaCegarLoop]: 478 mSDtfsCounter, 2497 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2497 SdHoareTripleChecker+Valid, 498 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-19 08:03:37,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2497 Valid, 498 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-19 08:03:37,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 646 states. [2023-11-19 08:03:37,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 646 to 646. [2023-11-19 08:03:37,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 646 states, 624 states have (on average 1.376602564102564) internal successors, (859), 645 states have internal predecessors, (859), 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) [2023-11-19 08:03:37,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 646 states to 646 states and 859 transitions. [2023-11-19 08:03:37,746 INFO L78 Accepts]: Start accepts. Automaton has 646 states and 859 transitions. Word has length 90 [2023-11-19 08:03:37,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:03:37,746 INFO L495 AbstractCegarLoop]: Abstraction has 646 states and 859 transitions. [2023-11-19 08:03:37,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 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) [2023-11-19 08:03:37,747 INFO L276 IsEmpty]: Start isEmpty. Operand 646 states and 859 transitions. [2023-11-19 08:03:37,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-11-19 08:03:37,749 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:03:37,750 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:03:37,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 08:03:37,750 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-11-19 08:03:37,751 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:37,751 INFO L85 PathProgramCache]: Analyzing trace with hash 1321361543, now seen corresponding path program 1 times [2023-11-19 08:03:37,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:03:37,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408133260] [2023-11-19 08:03:37,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:37,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:03:37,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:37,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:03:37,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:03:37,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408133260] [2023-11-19 08:03:37,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408133260] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:03:37,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:03:37,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 08:03:37,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550172073] [2023-11-19 08:03:37,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:03:37,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 08:03:37,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:03:37,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 08:03:37,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:03:37,940 INFO L87 Difference]: Start difference. First operand 646 states and 859 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 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) [2023-11-19 08:03:38,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:03:38,556 INFO L93 Difference]: Finished difference Result 1220 states and 1645 transitions. [2023-11-19 08:03:38,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 08:03:38,556 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 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 91 [2023-11-19 08:03:38,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:03:38,560 INFO L225 Difference]: With dead ends: 1220 [2023-11-19 08:03:38,560 INFO L226 Difference]: Without dead ends: 641 [2023-11-19 08:03:38,561 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-19 08:03:38,562 INFO L413 NwaCegarLoop]: 379 mSDtfsCounter, 2415 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2415 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-19 08:03:38,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2415 Valid, 423 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 475 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-19 08:03:38,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2023-11-19 08:03:38,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 641. [2023-11-19 08:03:38,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3764135702746365) internal successors, (852), 640 states have internal predecessors, (852), 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) [2023-11-19 08:03:38,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 852 transitions. [2023-11-19 08:03:38,579 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 852 transitions. Word has length 91 [2023-11-19 08:03:38,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:03:38,579 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 852 transitions. [2023-11-19 08:03:38,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 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) [2023-11-19 08:03:38,580 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 852 transitions. [2023-11-19 08:03:38,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-19 08:03:38,582 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:03:38,582 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:03:38,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 08:03:38,583 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-11-19 08:03:38,583 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:38,583 INFO L85 PathProgramCache]: Analyzing trace with hash 471449544, now seen corresponding path program 1 times [2023-11-19 08:03:38,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:03:38,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15978304] [2023-11-19 08:03:38,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:38,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:03:38,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:39,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:03:39,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:03:39,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15978304] [2023-11-19 08:03:39,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15978304] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:03:39,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:03:39,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 08:03:39,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369853327] [2023-11-19 08:03:39,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:03:39,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 08:03:39,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:03:39,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 08:03:39,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-19 08:03:39,101 INFO L87 Difference]: Start difference. First operand 641 states and 852 transitions. Second operand has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 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) [2023-11-19 08:03:40,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:03:40,694 INFO L93 Difference]: Finished difference Result 1260 states and 1708 transitions. [2023-11-19 08:03:40,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-19 08:03:40,695 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 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 92 [2023-11-19 08:03:40,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:03:40,701 INFO L225 Difference]: With dead ends: 1260 [2023-11-19 08:03:40,701 INFO L226 Difference]: Without dead ends: 1136 [2023-11-19 08:03:40,702 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2023-11-19 08:03:40,703 INFO L413 NwaCegarLoop]: 524 mSDtfsCounter, 5172 mSDsluCounter, 1699 mSDsCounter, 0 mSdLazyCounter, 1787 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5172 SdHoareTripleChecker+Valid, 2223 SdHoareTripleChecker+Invalid, 1794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1787 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-19 08:03:40,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5172 Valid, 2223 Invalid, 1794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1787 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-19 08:03:40,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1136 states. [2023-11-19 08:03:40,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1136 to 641. [2023-11-19 08:03:40,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3747980613893376) internal successors, (851), 640 states have internal predecessors, (851), 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) [2023-11-19 08:03:40,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 851 transitions. [2023-11-19 08:03:40,748 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 851 transitions. Word has length 92 [2023-11-19 08:03:40,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:03:40,748 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 851 transitions. [2023-11-19 08:03:40,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 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) [2023-11-19 08:03:40,749 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 851 transitions. [2023-11-19 08:03:40,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-19 08:03:40,751 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:03:40,751 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:03:40,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 08:03:40,752 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-11-19 08:03:40,752 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:40,752 INFO L85 PathProgramCache]: Analyzing trace with hash -1530881816, now seen corresponding path program 1 times [2023-11-19 08:03:40,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:03:40,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282399783] [2023-11-19 08:03:40,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:40,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:03:40,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:41,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:03:41,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:03:41,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282399783] [2023-11-19 08:03:41,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282399783] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:03:41,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:03:41,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-19 08:03:41,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851884952] [2023-11-19 08:03:41,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:03:41,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-19 08:03:41,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:03:41,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-19 08:03:41,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-11-19 08:03:41,391 INFO L87 Difference]: Start difference. First operand 641 states and 851 transitions. Second operand has 12 states, 12 states have (on average 7.666666666666667) internal successors, (92), 11 states have internal predecessors, (92), 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) [2023-11-19 08:03:43,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:03:43,403 INFO L93 Difference]: Finished difference Result 1409 states and 1897 transitions. [2023-11-19 08:03:43,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-19 08:03:43,404 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.666666666666667) internal successors, (92), 11 states have internal predecessors, (92), 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 92 [2023-11-19 08:03:43,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:03:43,411 INFO L225 Difference]: With dead ends: 1409 [2023-11-19 08:03:43,411 INFO L226 Difference]: Without dead ends: 1271 [2023-11-19 08:03:43,412 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=170, Invalid=480, Unknown=0, NotChecked=0, Total=650 [2023-11-19 08:03:43,413 INFO L413 NwaCegarLoop]: 539 mSDtfsCounter, 5378 mSDsluCounter, 2333 mSDsCounter, 0 mSdLazyCounter, 2262 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5378 SdHoareTripleChecker+Valid, 2872 SdHoareTripleChecker+Invalid, 2277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 2262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-19 08:03:43,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5378 Valid, 2872 Invalid, 2277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 2262 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-19 08:03:43,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1271 states. [2023-11-19 08:03:43,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1271 to 644. [2023-11-19 08:03:43,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 644 states, 622 states have (on average 1.3729903536977492) internal successors, (854), 643 states have internal predecessors, (854), 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) [2023-11-19 08:03:43,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 854 transitions. [2023-11-19 08:03:43,434 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 854 transitions. Word has length 92 [2023-11-19 08:03:43,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:03:43,435 INFO L495 AbstractCegarLoop]: Abstraction has 644 states and 854 transitions. [2023-11-19 08:03:43,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.666666666666667) internal successors, (92), 11 states have internal predecessors, (92), 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) [2023-11-19 08:03:43,435 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 854 transitions. [2023-11-19 08:03:43,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-19 08:03:43,437 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:03:43,437 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:03:43,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-19 08:03:43,438 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-11-19 08:03:43,438 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:43,439 INFO L85 PathProgramCache]: Analyzing trace with hash 348627122, now seen corresponding path program 1 times [2023-11-19 08:03:43,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:03:43,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259844339] [2023-11-19 08:03:43,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:43,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:03:43,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:43,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:03:43,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:03:43,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259844339] [2023-11-19 08:03:43,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259844339] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:03:43,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:03:43,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 08:03:43,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671841230] [2023-11-19 08:03:43,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:03:43,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 08:03:43,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:03:43,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 08:03:43,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-19 08:03:43,971 INFO L87 Difference]: Start difference. First operand 644 states and 854 transitions. Second operand has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 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) [2023-11-19 08:03:45,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:03:45,648 INFO L93 Difference]: Finished difference Result 1333 states and 1802 transitions. [2023-11-19 08:03:45,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-19 08:03:45,649 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 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 92 [2023-11-19 08:03:45,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:03:45,655 INFO L225 Difference]: With dead ends: 1333 [2023-11-19 08:03:45,655 INFO L226 Difference]: Without dead ends: 1140 [2023-11-19 08:03:45,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2023-11-19 08:03:45,661 INFO L413 NwaCegarLoop]: 526 mSDtfsCounter, 4467 mSDsluCounter, 2256 mSDsCounter, 0 mSdLazyCounter, 2208 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4467 SdHoareTripleChecker+Valid, 2782 SdHoareTripleChecker+Invalid, 2215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-19 08:03:45,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4467 Valid, 2782 Invalid, 2215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2208 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-19 08:03:45,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1140 states. [2023-11-19 08:03:45,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1140 to 641. [2023-11-19 08:03:45,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3731825525040389) internal successors, (850), 640 states have internal predecessors, (850), 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) [2023-11-19 08:03:45,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 850 transitions. [2023-11-19 08:03:45,679 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 850 transitions. Word has length 92 [2023-11-19 08:03:45,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:03:45,680 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 850 transitions. [2023-11-19 08:03:45,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 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) [2023-11-19 08:03:45,680 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 850 transitions. [2023-11-19 08:03:45,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-19 08:03:45,682 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:03:45,682 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:03:45,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-19 08:03:45,683 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-11-19 08:03:45,683 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:45,684 INFO L85 PathProgramCache]: Analyzing trace with hash 889427447, now seen corresponding path program 1 times [2023-11-19 08:03:45,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:03:45,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981799131] [2023-11-19 08:03:45,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:45,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:03:45,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:46,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:03:46,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:03:46,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981799131] [2023-11-19 08:03:46,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981799131] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:03:46,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:03:46,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 08:03:46,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591569927] [2023-11-19 08:03:46,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:03:46,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 08:03:46,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:03:46,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 08:03:46,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-19 08:03:46,110 INFO L87 Difference]: Start difference. First operand 641 states and 850 transitions. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 7 states have internal predecessors, (92), 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) [2023-11-19 08:03:47,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:03:47,135 INFO L93 Difference]: Finished difference Result 1209 states and 1559 transitions. [2023-11-19 08:03:47,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 08:03:47,136 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 7 states have internal predecessors, (92), 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 92 [2023-11-19 08:03:47,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:03:47,141 INFO L225 Difference]: With dead ends: 1209 [2023-11-19 08:03:47,141 INFO L226 Difference]: Without dead ends: 863 [2023-11-19 08:03:47,142 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2023-11-19 08:03:47,143 INFO L413 NwaCegarLoop]: 408 mSDtfsCounter, 2825 mSDsluCounter, 628 mSDsCounter, 0 mSdLazyCounter, 1071 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2825 SdHoareTripleChecker+Valid, 1036 SdHoareTripleChecker+Invalid, 1074 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1071 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-19 08:03:47,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2825 Valid, 1036 Invalid, 1074 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1071 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-19 08:03:47,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 863 states. [2023-11-19 08:03:47,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 863 to 641. [2023-11-19 08:03:47,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.37156704361874) internal successors, (849), 640 states have internal predecessors, (849), 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) [2023-11-19 08:03:47,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 849 transitions. [2023-11-19 08:03:47,162 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 849 transitions. Word has length 92 [2023-11-19 08:03:47,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:03:47,162 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 849 transitions. [2023-11-19 08:03:47,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 7 states have internal predecessors, (92), 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) [2023-11-19 08:03:47,163 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 849 transitions. [2023-11-19 08:03:47,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-19 08:03:47,165 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:03:47,165 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:03:47,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-19 08:03:47,165 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-11-19 08:03:47,166 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:47,166 INFO L85 PathProgramCache]: Analyzing trace with hash -709696546, now seen corresponding path program 1 times [2023-11-19 08:03:47,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:03:47,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229381926] [2023-11-19 08:03:47,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:47,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:03:47,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:47,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:03:47,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:03:47,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229381926] [2023-11-19 08:03:47,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229381926] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:03:47,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:03:47,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 08:03:47,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934110013] [2023-11-19 08:03:47,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:03:47,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 08:03:47,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:03:47,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 08:03:47,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-19 08:03:47,590 INFO L87 Difference]: Start difference. First operand 641 states and 849 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 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) [2023-11-19 08:03:49,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:03:49,472 INFO L93 Difference]: Finished difference Result 1362 states and 1827 transitions. [2023-11-19 08:03:49,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-19 08:03:49,472 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 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 94 [2023-11-19 08:03:49,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:03:49,484 INFO L225 Difference]: With dead ends: 1362 [2023-11-19 08:03:49,484 INFO L226 Difference]: Without dead ends: 1140 [2023-11-19 08:03:49,486 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2023-11-19 08:03:49,487 INFO L413 NwaCegarLoop]: 799 mSDtfsCounter, 3803 mSDsluCounter, 2092 mSDsCounter, 0 mSdLazyCounter, 2296 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3803 SdHoareTripleChecker+Valid, 2891 SdHoareTripleChecker+Invalid, 2304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-19 08:03:49,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3803 Valid, 2891 Invalid, 2304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 2296 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-19 08:03:49,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1140 states. [2023-11-19 08:03:49,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1140 to 641. [2023-11-19 08:03:49,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.369951534733441) internal successors, (848), 640 states have internal predecessors, (848), 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) [2023-11-19 08:03:49,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 848 transitions. [2023-11-19 08:03:49,507 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 848 transitions. Word has length 94 [2023-11-19 08:03:49,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:03:49,507 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 848 transitions. [2023-11-19 08:03:49,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 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) [2023-11-19 08:03:49,508 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 848 transitions. [2023-11-19 08:03:49,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-19 08:03:49,510 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:03:49,510 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:03:49,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-19 08:03:49,510 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-11-19 08:03:49,511 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:49,511 INFO L85 PathProgramCache]: Analyzing trace with hash -904842275, now seen corresponding path program 1 times [2023-11-19 08:03:49,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:03:49,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073824411] [2023-11-19 08:03:49,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:49,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:03:49,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:49,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:03:49,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:03:49,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073824411] [2023-11-19 08:03:49,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073824411] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:03:49,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:03:49,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 08:03:49,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85505865] [2023-11-19 08:03:49,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:03:49,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 08:03:49,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:03:49,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 08:03:49,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-19 08:03:49,974 INFO L87 Difference]: Start difference. First operand 641 states and 848 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 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) [2023-11-19 08:03:51,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:03:51,618 INFO L93 Difference]: Finished difference Result 1227 states and 1649 transitions. [2023-11-19 08:03:51,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-19 08:03:51,619 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 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 94 [2023-11-19 08:03:51,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:03:51,626 INFO L225 Difference]: With dead ends: 1227 [2023-11-19 08:03:51,626 INFO L226 Difference]: Without dead ends: 1128 [2023-11-19 08:03:51,627 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2023-11-19 08:03:51,628 INFO L413 NwaCegarLoop]: 569 mSDtfsCounter, 4827 mSDsluCounter, 1843 mSDsCounter, 0 mSdLazyCounter, 1941 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4827 SdHoareTripleChecker+Valid, 2412 SdHoareTripleChecker+Invalid, 1948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1941 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-19 08:03:51,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4827 Valid, 2412 Invalid, 1948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1941 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-19 08:03:51,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1128 states. [2023-11-19 08:03:51,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1128 to 641. [2023-11-19 08:03:51,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.368336025848142) internal successors, (847), 640 states have internal predecessors, (847), 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) [2023-11-19 08:03:51,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 847 transitions. [2023-11-19 08:03:51,648 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 847 transitions. Word has length 94 [2023-11-19 08:03:51,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:03:51,649 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 847 transitions. [2023-11-19 08:03:51,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 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) [2023-11-19 08:03:51,649 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 847 transitions. [2023-11-19 08:03:51,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-19 08:03:51,651 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:03:51,652 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:03:51,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-19 08:03:51,652 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-11-19 08:03:51,653 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:51,653 INFO L85 PathProgramCache]: Analyzing trace with hash 1510616083, now seen corresponding path program 1 times [2023-11-19 08:03:51,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:03:51,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089082521] [2023-11-19 08:03:51,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:51,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:03:51,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:52,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:03:52,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:03:52,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089082521] [2023-11-19 08:03:52,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089082521] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:03:52,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:03:52,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 08:03:52,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189273641] [2023-11-19 08:03:52,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:03:52,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 08:03:52,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:03:52,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 08:03:52,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-19 08:03:52,019 INFO L87 Difference]: Start difference. First operand 641 states and 847 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 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) [2023-11-19 08:03:53,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:03:53,913 INFO L93 Difference]: Finished difference Result 1274 states and 1714 transitions. [2023-11-19 08:03:53,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-19 08:03:53,914 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 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 94 [2023-11-19 08:03:53,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:03:53,920 INFO L225 Difference]: With dead ends: 1274 [2023-11-19 08:03:53,921 INFO L226 Difference]: Without dead ends: 1136 [2023-11-19 08:03:53,922 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2023-11-19 08:03:53,922 INFO L413 NwaCegarLoop]: 790 mSDtfsCounter, 2963 mSDsluCounter, 2471 mSDsCounter, 0 mSdLazyCounter, 2536 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2963 SdHoareTripleChecker+Valid, 3261 SdHoareTripleChecker+Invalid, 2542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 2536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-19 08:03:53,923 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2963 Valid, 3261 Invalid, 2542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 2536 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-19 08:03:53,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1136 states. [2023-11-19 08:03:53,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1136 to 641. [2023-11-19 08:03:53,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3667205169628434) internal successors, (846), 640 states have internal predecessors, (846), 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) [2023-11-19 08:03:53,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 846 transitions. [2023-11-19 08:03:53,946 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 846 transitions. Word has length 94 [2023-11-19 08:03:53,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:03:53,946 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 846 transitions. [2023-11-19 08:03:53,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 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) [2023-11-19 08:03:53,947 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 846 transitions. [2023-11-19 08:03:53,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-19 08:03:53,949 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:03:53,949 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:03:53,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-19 08:03:53,950 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-11-19 08:03:53,950 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:53,950 INFO L85 PathProgramCache]: Analyzing trace with hash -10217144, now seen corresponding path program 1 times [2023-11-19 08:03:53,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:03:53,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901248648] [2023-11-19 08:03:53,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:53,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:03:53,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:54,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:03:54,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:03:54,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901248648] [2023-11-19 08:03:54,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901248648] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:03:54,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:03:54,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 08:03:54,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226061597] [2023-11-19 08:03:54,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:03:54,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 08:03:54,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:03:54,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 08:03:54,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-19 08:03:54,292 INFO L87 Difference]: Start difference. First operand 641 states and 846 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 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) [2023-11-19 08:03:56,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:03:56,007 INFO L93 Difference]: Finished difference Result 1274 states and 1716 transitions. [2023-11-19 08:03:56,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-19 08:03:56,007 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 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 94 [2023-11-19 08:03:56,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:03:56,016 INFO L225 Difference]: With dead ends: 1274 [2023-11-19 08:03:56,016 INFO L226 Difference]: Without dead ends: 1136 [2023-11-19 08:03:56,017 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2023-11-19 08:03:56,017 INFO L413 NwaCegarLoop]: 800 mSDtfsCounter, 2210 mSDsluCounter, 2282 mSDsCounter, 0 mSdLazyCounter, 2381 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2210 SdHoareTripleChecker+Valid, 3082 SdHoareTripleChecker+Invalid, 2388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-19 08:03:56,018 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2210 Valid, 3082 Invalid, 2388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2381 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-19 08:03:56,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1136 states. [2023-11-19 08:03:56,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1136 to 641. [2023-11-19 08:03:56,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3651050080775444) internal successors, (845), 640 states have internal predecessors, (845), 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) [2023-11-19 08:03:56,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 845 transitions. [2023-11-19 08:03:56,044 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 845 transitions. Word has length 94 [2023-11-19 08:03:56,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:03:56,045 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 845 transitions. [2023-11-19 08:03:56,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 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) [2023-11-19 08:03:56,045 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 845 transitions. [2023-11-19 08:03:56,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-19 08:03:56,047 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:03:56,047 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:03:56,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-19 08:03:56,048 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-11-19 08:03:56,048 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:56,048 INFO L85 PathProgramCache]: Analyzing trace with hash 1869291794, now seen corresponding path program 1 times [2023-11-19 08:03:56,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:03:56,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118287384] [2023-11-19 08:03:56,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:56,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:03:56,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:56,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:03:56,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:03:56,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118287384] [2023-11-19 08:03:56,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118287384] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:03:56,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:03:56,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 08:03:56,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705599890] [2023-11-19 08:03:56,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:03:56,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 08:03:56,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:03:56,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 08:03:56,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-19 08:03:56,412 INFO L87 Difference]: Start difference. First operand 641 states and 845 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 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) [2023-11-19 08:03:57,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:03:57,768 INFO L93 Difference]: Finished difference Result 1159 states and 1534 transitions. [2023-11-19 08:03:57,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-19 08:03:57,769 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 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 94 [2023-11-19 08:03:57,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:03:57,781 INFO L225 Difference]: With dead ends: 1159 [2023-11-19 08:03:57,781 INFO L226 Difference]: Without dead ends: 1080 [2023-11-19 08:03:57,784 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2023-11-19 08:03:57,784 INFO L413 NwaCegarLoop]: 509 mSDtfsCounter, 3689 mSDsluCounter, 1597 mSDsCounter, 0 mSdLazyCounter, 1783 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3689 SdHoareTripleChecker+Valid, 2106 SdHoareTripleChecker+Invalid, 1790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1783 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-19 08:03:57,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3689 Valid, 2106 Invalid, 1790 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1783 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-19 08:03:57,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1080 states. [2023-11-19 08:03:57,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1080 to 641. [2023-11-19 08:03:57,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3634894991922455) internal successors, (844), 640 states have internal predecessors, (844), 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) [2023-11-19 08:03:57,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 844 transitions. [2023-11-19 08:03:57,804 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 844 transitions. Word has length 94 [2023-11-19 08:03:57,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:03:57,805 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 844 transitions. [2023-11-19 08:03:57,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 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) [2023-11-19 08:03:57,805 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 844 transitions. [2023-11-19 08:03:57,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-19 08:03:57,807 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:03:57,807 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:03:57,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-19 08:03:57,808 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-11-19 08:03:57,808 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:57,808 INFO L85 PathProgramCache]: Analyzing trace with hash 191796868, now seen corresponding path program 1 times [2023-11-19 08:03:57,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:03:57,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486522906] [2023-11-19 08:03:57,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:57,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:03:57,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:58,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:03:58,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:03:58,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486522906] [2023-11-19 08:03:58,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486522906] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:03:58,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:03:58,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 08:03:58,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248795029] [2023-11-19 08:03:58,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:03:58,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 08:03:58,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:03:58,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 08:03:58,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-19 08:03:58,238 INFO L87 Difference]: Start difference. First operand 641 states and 844 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 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) [2023-11-19 08:03:59,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:03:59,943 INFO L93 Difference]: Finished difference Result 1227 states and 1645 transitions. [2023-11-19 08:03:59,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-19 08:03:59,943 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 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 94 [2023-11-19 08:03:59,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:03:59,950 INFO L225 Difference]: With dead ends: 1227 [2023-11-19 08:03:59,950 INFO L226 Difference]: Without dead ends: 1128 [2023-11-19 08:03:59,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2023-11-19 08:03:59,952 INFO L413 NwaCegarLoop]: 720 mSDtfsCounter, 3183 mSDsluCounter, 2185 mSDsCounter, 0 mSdLazyCounter, 2329 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3183 SdHoareTripleChecker+Valid, 2905 SdHoareTripleChecker+Invalid, 2336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-19 08:03:59,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3183 Valid, 2905 Invalid, 2336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2329 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-19 08:03:59,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1128 states. [2023-11-19 08:03:59,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1128 to 641. [2023-11-19 08:03:59,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3618739903069468) internal successors, (843), 640 states have internal predecessors, (843), 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) [2023-11-19 08:03:59,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 843 transitions. [2023-11-19 08:03:59,971 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 843 transitions. Word has length 94 [2023-11-19 08:03:59,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:03:59,972 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 843 transitions. [2023-11-19 08:03:59,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 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) [2023-11-19 08:03:59,972 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 843 transitions. [2023-11-19 08:03:59,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-19 08:03:59,974 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:03:59,974 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:03:59,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-19 08:03:59,975 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-11-19 08:03:59,975 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:59,975 INFO L85 PathProgramCache]: Analyzing trace with hash 1752938330, now seen corresponding path program 1 times [2023-11-19 08:03:59,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:03:59,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621219696] [2023-11-19 08:03:59,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:59,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:00,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:00,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:04:00,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:00,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621219696] [2023-11-19 08:04:00,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621219696] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:04:00,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:04:00,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 08:04:00,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503150926] [2023-11-19 08:04:00,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:04:00,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 08:04:00,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:00,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 08:04:00,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-19 08:04:00,371 INFO L87 Difference]: Start difference. First operand 641 states and 843 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 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) [2023-11-19 08:04:01,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:04:01,925 INFO L93 Difference]: Finished difference Result 1222 states and 1639 transitions. [2023-11-19 08:04:01,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-19 08:04:01,925 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 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 94 [2023-11-19 08:04:01,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:04:01,931 INFO L225 Difference]: With dead ends: 1222 [2023-11-19 08:04:01,932 INFO L226 Difference]: Without dead ends: 1128 [2023-11-19 08:04:01,933 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2023-11-19 08:04:01,933 INFO L413 NwaCegarLoop]: 654 mSDtfsCounter, 4343 mSDsluCounter, 2109 mSDsCounter, 0 mSdLazyCounter, 2201 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4343 SdHoareTripleChecker+Valid, 2763 SdHoareTripleChecker+Invalid, 2208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-19 08:04:01,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4343 Valid, 2763 Invalid, 2208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2201 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-19 08:04:01,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1128 states. [2023-11-19 08:04:01,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1128 to 641. [2023-11-19 08:04:01,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.3602584814216478) internal successors, (842), 640 states have internal predecessors, (842), 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) [2023-11-19 08:04:01,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 842 transitions. [2023-11-19 08:04:01,953 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 842 transitions. Word has length 94 [2023-11-19 08:04:01,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:04:01,954 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 842 transitions. [2023-11-19 08:04:01,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 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) [2023-11-19 08:04:01,954 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 842 transitions. [2023-11-19 08:04:01,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-19 08:04:01,956 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:04:01,956 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:04:01,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-19 08:04:01,957 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-11-19 08:04:01,957 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:01,957 INFO L85 PathProgramCache]: Analyzing trace with hash 1333702137, now seen corresponding path program 1 times [2023-11-19 08:04:01,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:01,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542994975] [2023-11-19 08:04:01,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:01,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:02,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:02,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:04:02,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:02,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542994975] [2023-11-19 08:04:02,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542994975] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:04:02,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:04:02,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 08:04:02,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795848258] [2023-11-19 08:04:02,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:04:02,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 08:04:02,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:02,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 08:04:02,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-19 08:04:02,337 INFO L87 Difference]: Start difference. First operand 641 states and 842 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 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) [2023-11-19 08:04:03,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:04:03,912 INFO L93 Difference]: Finished difference Result 1236 states and 1651 transitions. [2023-11-19 08:04:03,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-19 08:04:03,913 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 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 96 [2023-11-19 08:04:03,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:04:03,919 INFO L225 Difference]: With dead ends: 1236 [2023-11-19 08:04:03,919 INFO L226 Difference]: Without dead ends: 1128 [2023-11-19 08:04:03,920 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2023-11-19 08:04:03,921 INFO L413 NwaCegarLoop]: 616 mSDtfsCounter, 4689 mSDsluCounter, 2020 mSDsCounter, 0 mSdLazyCounter, 2053 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4689 SdHoareTripleChecker+Valid, 2636 SdHoareTripleChecker+Invalid, 2061 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2053 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-19 08:04:03,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4689 Valid, 2636 Invalid, 2061 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 2053 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-19 08:04:03,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1128 states. [2023-11-19 08:04:03,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1128 to 641. [2023-11-19 08:04:03,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 619 states have (on average 1.358642972536349) internal successors, (841), 640 states have internal predecessors, (841), 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) [2023-11-19 08:04:03,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 841 transitions. [2023-11-19 08:04:03,942 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 841 transitions. Word has length 96 [2023-11-19 08:04:03,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:04:03,943 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 841 transitions. [2023-11-19 08:04:03,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 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) [2023-11-19 08:04:03,943 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 841 transitions. [2023-11-19 08:04:03,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-19 08:04:03,945 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:04:03,946 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:04:03,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-19 08:04:03,946 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2023-11-19 08:04:03,946 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:03,947 INFO L85 PathProgramCache]: Analyzing trace with hash 924856909, now seen corresponding path program 1 times [2023-11-19 08:04:03,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:03,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21620418] [2023-11-19 08:04:03,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:03,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:04,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:04,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:04:04,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:04,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21620418] [2023-11-19 08:04:04,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21620418] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:04:04,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:04:04,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 08:04:04,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401256186] [2023-11-19 08:04:04,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:04:04,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 08:04:04,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:04,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 08:04:04,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-19 08:04:04,364 INFO L87 Difference]: Start difference. First operand 641 states and 841 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 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)