./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1adf5704-1e76-40c6-bbcf-f4cfb2989620/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1adf5704-1e76-40c6-bbcf-f4cfb2989620/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1adf5704-1e76-40c6-bbcf-f4cfb2989620/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1adf5704-1e76-40c6-bbcf-f4cfb2989620/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1adf5704-1e76-40c6-bbcf-f4cfb2989620/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1adf5704-1e76-40c6-bbcf-f4cfb2989620/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6fcbb6774587cda7a5d573623a9a47b3e351563c8bea7eebdf86bc25d20b8061 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 02:53:11,126 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 02:53:11,189 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1adf5704-1e76-40c6-bbcf-f4cfb2989620/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-29 02:53:11,193 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 02:53:11,194 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 02:53:11,217 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 02:53:11,217 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 02:53:11,218 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 02:53:11,218 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 02:53:11,219 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 02:53:11,219 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 02:53:11,220 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 02:53:11,221 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 02:53:11,221 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 02:53:11,222 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 02:53:11,222 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 02:53:11,223 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 02:53:11,223 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 02:53:11,224 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 02:53:11,224 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 02:53:11,225 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 02:53:11,226 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 02:53:11,226 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 02:53:11,226 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 02:53:11,227 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 02:53:11,227 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 02:53:11,228 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 02:53:11,228 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 02:53:11,229 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 02:53:11,229 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 02:53:11,229 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 02:53:11,230 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 02:53:11,230 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 02:53:11,230 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 02:53:11,231 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 02:53:11,231 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 02:53:11,231 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 02:53:11,231 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 02:53:11,231 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 02:53:11,231 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 02:53:11,231 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 02:53:11,232 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 02:53:11,232 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_1adf5704-1e76-40c6-bbcf-f4cfb2989620/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1adf5704-1e76-40c6-bbcf-f4cfb2989620/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6fcbb6774587cda7a5d573623a9a47b3e351563c8bea7eebdf86bc25d20b8061 [2023-11-29 02:53:11,429 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 02:53:11,449 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 02:53:11,452 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 02:53:11,453 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 02:53:11,453 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 02:53:11,454 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1adf5704-1e76-40c6-bbcf-f4cfb2989620/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2023-11-29 02:53:14,254 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 02:53:14,501 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 02:53:14,502 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1adf5704-1e76-40c6-bbcf-f4cfb2989620/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2023-11-29 02:53:14,516 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1adf5704-1e76-40c6-bbcf-f4cfb2989620/bin/uautomizer-verify-BQ2R08f2Ya/data/d9a676d5d/590ea98e9415440da01d4bbc09159919/FLAG6fd488d5f [2023-11-29 02:53:14,528 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1adf5704-1e76-40c6-bbcf-f4cfb2989620/bin/uautomizer-verify-BQ2R08f2Ya/data/d9a676d5d/590ea98e9415440da01d4bbc09159919 [2023-11-29 02:53:14,531 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 02:53:14,532 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 02:53:14,534 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 02:53:14,534 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 02:53:14,543 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 02:53:14,544 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:53:14" (1/1) ... [2023-11-29 02:53:14,545 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a8539e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:53:14, skipping insertion in model container [2023-11-29 02:53:14,545 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:53:14" (1/1) ... [2023-11-29 02:53:14,622 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 02:53:14,864 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_1adf5704-1e76-40c6-bbcf-f4cfb2989620/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[8891,8904] [2023-11-29 02:53:14,889 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_1adf5704-1e76-40c6-bbcf-f4cfb2989620/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[12143,12156] [2023-11-29 02:53:14,899 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_1adf5704-1e76-40c6-bbcf-f4cfb2989620/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[13299,13312] [2023-11-29 02:53:14,905 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_1adf5704-1e76-40c6-bbcf-f4cfb2989620/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[13955,13968] [2023-11-29 02:53:14,918 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_1adf5704-1e76-40c6-bbcf-f4cfb2989620/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[15434,15447] [2023-11-29 02:53:14,924 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_1adf5704-1e76-40c6-bbcf-f4cfb2989620/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[16090,16103] [2023-11-29 02:53:14,933 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_1adf5704-1e76-40c6-bbcf-f4cfb2989620/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[17074,17087] [2023-11-29 02:53:14,948 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_1adf5704-1e76-40c6-bbcf-f4cfb2989620/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[19370,19383] [2023-11-29 02:53:14,953 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_1adf5704-1e76-40c6-bbcf-f4cfb2989620/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[20029,20042] [2023-11-29 02:53:14,959 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_1adf5704-1e76-40c6-bbcf-f4cfb2989620/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[21011,21024] [2023-11-29 02:53:14,970 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_1adf5704-1e76-40c6-bbcf-f4cfb2989620/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[22802,22815] [2023-11-29 02:53:15,056 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 02:53:15,071 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 02:53:15,148 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_1adf5704-1e76-40c6-bbcf-f4cfb2989620/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[8891,8904] [2023-11-29 02:53:15,158 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_1adf5704-1e76-40c6-bbcf-f4cfb2989620/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[12143,12156] [2023-11-29 02:53:15,163 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_1adf5704-1e76-40c6-bbcf-f4cfb2989620/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[13299,13312] [2023-11-29 02:53:15,167 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_1adf5704-1e76-40c6-bbcf-f4cfb2989620/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[13955,13968] [2023-11-29 02:53:15,173 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_1adf5704-1e76-40c6-bbcf-f4cfb2989620/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[15434,15447] [2023-11-29 02:53:15,177 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_1adf5704-1e76-40c6-bbcf-f4cfb2989620/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[16090,16103] [2023-11-29 02:53:15,181 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_1adf5704-1e76-40c6-bbcf-f4cfb2989620/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[17074,17087] [2023-11-29 02:53:15,191 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_1adf5704-1e76-40c6-bbcf-f4cfb2989620/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[19370,19383] [2023-11-29 02:53:15,195 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1adf5704-1e76-40c6-bbcf-f4cfb2989620/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[20029,20042] [2023-11-29 02:53:15,199 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1adf5704-1e76-40c6-bbcf-f4cfb2989620/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[21011,21024] [2023-11-29 02:53:15,205 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1adf5704-1e76-40c6-bbcf-f4cfb2989620/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[22802,22815] [2023-11-29 02:53:15,254 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 02:53:15,272 INFO L206 MainTranslator]: Completed translation [2023-11-29 02:53:15,272 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:53:15 WrapperNode [2023-11-29 02:53:15,272 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 02:53:15,273 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 02:53:15,273 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 02:53:15,273 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 02:53:15,281 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:53:15" (1/1) ... [2023-11-29 02:53:15,305 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:53:15" (1/1) ... [2023-11-29 02:53:15,370 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1918 [2023-11-29 02:53:15,371 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 02:53:15,371 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 02:53:15,372 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 02:53:15,372 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 02:53:15,383 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:53:15" (1/1) ... [2023-11-29 02:53:15,383 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:53:15" (1/1) ... [2023-11-29 02:53:15,390 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:53:15" (1/1) ... [2023-11-29 02:53:15,420 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-29 02:53:15,420 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:53:15" (1/1) ... [2023-11-29 02:53:15,421 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:53:15" (1/1) ... [2023-11-29 02:53:15,447 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:53:15" (1/1) ... [2023-11-29 02:53:15,458 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:53:15" (1/1) ... [2023-11-29 02:53:15,463 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:53:15" (1/1) ... [2023-11-29 02:53:15,471 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:53:15" (1/1) ... [2023-11-29 02:53:15,481 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 02:53:15,482 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 02:53:15,482 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 02:53:15,482 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 02:53:15,483 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:53:15" (1/1) ... [2023-11-29 02:53:15,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 02:53:15,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1adf5704-1e76-40c6-bbcf-f4cfb2989620/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:53:15,510 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1adf5704-1e76-40c6-bbcf-f4cfb2989620/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 02:53:15,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1adf5704-1e76-40c6-bbcf-f4cfb2989620/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 02:53:15,539 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 02:53:15,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 02:53:15,539 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 02:53:15,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 02:53:15,685 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 02:53:15,687 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 02:53:16,699 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 02:53:16,746 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 02:53:16,746 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-29 02:53:16,747 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:53:16 BoogieIcfgContainer [2023-11-29 02:53:16,747 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 02:53:16,750 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 02:53:16,750 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 02:53:16,753 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 02:53:16,753 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 02:53:14" (1/3) ... [2023-11-29 02:53:16,754 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7954a14c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 02:53:16, skipping insertion in model container [2023-11-29 02:53:16,754 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:53:15" (2/3) ... [2023-11-29 02:53:16,755 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7954a14c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 02:53:16, skipping insertion in model container [2023-11-29 02:53:16,755 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:53:16" (3/3) ... [2023-11-29 02:53:16,756 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2023-11-29 02:53:16,776 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 02:53:16,776 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2023-11-29 02:53:16,861 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 02:53:16,867 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;@6b97da64, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 02:53:16,868 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2023-11-29 02:53:16,874 INFO L276 IsEmpty]: Start isEmpty. Operand has 356 states, 343 states have (on average 1.8425655976676385) internal successors, (632), 355 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:16,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-29 02:53:16,887 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:53:16,888 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] [2023-11-29 02:53:16,889 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-29 02:53:16,893 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:53:16,894 INFO L85 PathProgramCache]: Analyzing trace with hash 1432511949, now seen corresponding path program 1 times [2023-11-29 02:53:16,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:53:16,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262450323] [2023-11-29 02:53:16,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:53:16,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:53:17,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:53:17,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:53:17,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:53:17,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262450323] [2023-11-29 02:53:17,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262450323] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:53:17,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:53:17,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 02:53:17,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224579410] [2023-11-29 02:53:17,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:53:17,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 02:53:17,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:53:17,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 02:53:17,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:53:17,385 INFO L87 Difference]: Start difference. First operand has 356 states, 343 states have (on average 1.8425655976676385) internal successors, (632), 355 states have internal predecessors, (632), 0 states have call successors, (0), 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 11.4) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:17,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:53:17,719 INFO L93 Difference]: Finished difference Result 566 states and 967 transitions. [2023-11-29 02:53:17,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 02:53:17,721 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2023-11-29 02:53:17,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:53:17,733 INFO L225 Difference]: With dead ends: 566 [2023-11-29 02:53:17,734 INFO L226 Difference]: Without dead ends: 300 [2023-11-29 02:53:17,738 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:53:17,741 INFO L413 NwaCegarLoop]: 337 mSDtfsCounter, 1457 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1457 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:53:17,742 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1457 Valid, 377 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 02:53:17,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2023-11-29 02:53:17,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 300. [2023-11-29 02:53:17,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 289 states have (on average 1.28719723183391) internal successors, (372), 299 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:17,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 372 transitions. [2023-11-29 02:53:17,790 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 372 transitions. Word has length 57 [2023-11-29 02:53:17,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:53:17,790 INFO L495 AbstractCegarLoop]: Abstraction has 300 states and 372 transitions. [2023-11-29 02:53:17,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:17,791 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 372 transitions. [2023-11-29 02:53:17,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-29 02:53:17,794 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:53:17,794 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] [2023-11-29 02:53:17,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 02:53:17,795 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-29 02:53:17,795 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:53:17,795 INFO L85 PathProgramCache]: Analyzing trace with hash 1451472122, now seen corresponding path program 1 times [2023-11-29 02:53:17,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:53:17,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775769448] [2023-11-29 02:53:17,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:53:17,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:53:17,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:53:17,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:53:17,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:53:17,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775769448] [2023-11-29 02:53:17,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775769448] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:53:17,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:53:17,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 02:53:17,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457193462] [2023-11-29 02:53:17,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:53:17,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 02:53:17,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:53:17,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 02:53:17,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:53:17,944 INFO L87 Difference]: Start difference. First operand 300 states and 372 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:18,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:53:18,155 INFO L93 Difference]: Finished difference Result 502 states and 639 transitions. [2023-11-29 02:53:18,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 02:53:18,157 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2023-11-29 02:53:18,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:53:18,159 INFO L225 Difference]: With dead ends: 502 [2023-11-29 02:53:18,159 INFO L226 Difference]: Without dead ends: 265 [2023-11-29 02:53:18,160 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:53:18,162 INFO L413 NwaCegarLoop]: 197 mSDtfsCounter, 962 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 962 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:53:18,162 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [962 Valid, 201 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 02:53:18,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2023-11-29 02:53:18,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 265. [2023-11-29 02:53:18,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 254 states have (on average 1.3070866141732282) internal successors, (332), 264 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:18,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 332 transitions. [2023-11-29 02:53:18,178 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 332 transitions. Word has length 58 [2023-11-29 02:53:18,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:53:18,179 INFO L495 AbstractCegarLoop]: Abstraction has 265 states and 332 transitions. [2023-11-29 02:53:18,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:18,179 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 332 transitions. [2023-11-29 02:53:18,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-29 02:53:18,182 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:53:18,182 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] [2023-11-29 02:53:18,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 02:53:18,183 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-29 02:53:18,183 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:53:18,183 INFO L85 PathProgramCache]: Analyzing trace with hash 659385937, now seen corresponding path program 1 times [2023-11-29 02:53:18,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:53:18,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483482589] [2023-11-29 02:53:18,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:53:18,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:53:18,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:53:18,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:53:18,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:53:18,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483482589] [2023-11-29 02:53:18,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483482589] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:53:18,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:53:18,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 02:53:18,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878734688] [2023-11-29 02:53:18,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:53:18,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 02:53:18,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:53:18,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 02:53:18,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:53:18,316 INFO L87 Difference]: Start difference. First operand 265 states and 332 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:18,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:53:18,518 INFO L93 Difference]: Finished difference Result 467 states and 598 transitions. [2023-11-29 02:53:18,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 02:53:18,518 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 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 59 [2023-11-29 02:53:18,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:53:18,520 INFO L225 Difference]: With dead ends: 467 [2023-11-29 02:53:18,520 INFO L226 Difference]: Without dead ends: 255 [2023-11-29 02:53:18,521 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:53:18,522 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 884 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 884 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:53:18,523 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [884 Valid, 194 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 02:53:18,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2023-11-29 02:53:18,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 255. [2023-11-29 02:53:18,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 244 states have (on average 1.3073770491803278) internal successors, (319), 254 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:18,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 319 transitions. [2023-11-29 02:53:18,536 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 319 transitions. Word has length 59 [2023-11-29 02:53:18,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:53:18,536 INFO L495 AbstractCegarLoop]: Abstraction has 255 states and 319 transitions. [2023-11-29 02:53:18,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:18,537 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 319 transitions. [2023-11-29 02:53:18,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-29 02:53:18,538 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:53:18,539 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] [2023-11-29 02:53:18,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 02:53:18,539 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-29 02:53:18,540 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:53:18,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1543164138, now seen corresponding path program 1 times [2023-11-29 02:53:18,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:53:18,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191244347] [2023-11-29 02:53:18,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:53:18,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:53:18,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:53:18,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:53:18,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:53:18,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191244347] [2023-11-29 02:53:18,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191244347] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:53:18,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:53:18,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 02:53:18,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294447069] [2023-11-29 02:53:18,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:53:18,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 02:53:18,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:53:18,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 02:53:18,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:53:18,661 INFO L87 Difference]: Start difference. First operand 255 states and 319 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:18,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:53:18,810 INFO L93 Difference]: Finished difference Result 457 states and 584 transitions. [2023-11-29 02:53:18,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 02:53:18,811 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 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 60 [2023-11-29 02:53:18,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:53:18,813 INFO L225 Difference]: With dead ends: 457 [2023-11-29 02:53:18,813 INFO L226 Difference]: Without dead ends: 244 [2023-11-29 02:53:18,814 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:53:18,815 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 872 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 872 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:53:18,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [872 Valid, 189 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:53:18,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2023-11-29 02:53:18,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 244. [2023-11-29 02:53:18,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 233 states have (on average 1.3133047210300428) internal successors, (306), 243 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:18,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 306 transitions. [2023-11-29 02:53:18,824 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 306 transitions. Word has length 60 [2023-11-29 02:53:18,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:53:18,824 INFO L495 AbstractCegarLoop]: Abstraction has 244 states and 306 transitions. [2023-11-29 02:53:18,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:18,825 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 306 transitions. [2023-11-29 02:53:18,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-29 02:53:18,826 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:53:18,827 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] [2023-11-29 02:53:18,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 02:53:18,827 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-29 02:53:18,828 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:53:18,828 INFO L85 PathProgramCache]: Analyzing trace with hash 1012719179, now seen corresponding path program 1 times [2023-11-29 02:53:18,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:53:18,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685549442] [2023-11-29 02:53:18,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:53:18,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:53:18,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:53:19,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:53:19,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:53:19,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685549442] [2023-11-29 02:53:19,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685549442] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:53:19,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:53:19,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 02:53:19,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489877736] [2023-11-29 02:53:19,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:53:19,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 02:53:19,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:53:19,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 02:53:19,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-29 02:53:19,118 INFO L87 Difference]: Start difference. First operand 244 states and 306 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:19,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:53:19,741 INFO L93 Difference]: Finished difference Result 574 states and 756 transitions. [2023-11-29 02:53:19,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 02:53:19,741 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2023-11-29 02:53:19,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:53:19,744 INFO L225 Difference]: With dead ends: 574 [2023-11-29 02:53:19,745 INFO L226 Difference]: Without dead ends: 487 [2023-11-29 02:53:19,746 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-11-29 02:53:19,747 INFO L413 NwaCegarLoop]: 208 mSDtfsCounter, 1063 mSDsluCounter, 649 mSDsCounter, 0 mSdLazyCounter, 665 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1063 SdHoareTripleChecker+Valid, 857 SdHoareTripleChecker+Invalid, 669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 02:53:19,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1063 Valid, 857 Invalid, 669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 665 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 02:53:19,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2023-11-29 02:53:19,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 244. [2023-11-29 02:53:19,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 233 states have (on average 1.3090128755364807) internal successors, (305), 243 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:19,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 305 transitions. [2023-11-29 02:53:19,756 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 305 transitions. Word has length 61 [2023-11-29 02:53:19,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:53:19,757 INFO L495 AbstractCegarLoop]: Abstraction has 244 states and 305 transitions. [2023-11-29 02:53:19,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:19,757 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 305 transitions. [2023-11-29 02:53:19,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-29 02:53:19,758 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:53:19,758 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] [2023-11-29 02:53:19,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 02:53:19,759 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-29 02:53:19,759 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:53:19,759 INFO L85 PathProgramCache]: Analyzing trace with hash 603873951, now seen corresponding path program 1 times [2023-11-29 02:53:19,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:53:19,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665961834] [2023-11-29 02:53:19,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:53:19,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:53:19,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:53:20,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:53:20,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:53:20,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665961834] [2023-11-29 02:53:20,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665961834] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:53:20,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:53:20,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 02:53:20,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146356350] [2023-11-29 02:53:20,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:53:20,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 02:53:20,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:53:20,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 02:53:20,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-29 02:53:20,019 INFO L87 Difference]: Start difference. First operand 244 states and 305 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:20,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:53:20,656 INFO L93 Difference]: Finished difference Result 548 states and 722 transitions. [2023-11-29 02:53:20,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 02:53:20,657 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2023-11-29 02:53:20,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:53:20,660 INFO L225 Difference]: With dead ends: 548 [2023-11-29 02:53:20,660 INFO L226 Difference]: Without dead ends: 483 [2023-11-29 02:53:20,661 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-11-29 02:53:20,662 INFO L413 NwaCegarLoop]: 232 mSDtfsCounter, 1401 mSDsluCounter, 753 mSDsCounter, 0 mSdLazyCounter, 743 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1401 SdHoareTripleChecker+Valid, 985 SdHoareTripleChecker+Invalid, 747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 743 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 02:53:20,663 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1401 Valid, 985 Invalid, 747 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 743 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 02:53:20,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2023-11-29 02:53:20,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 244. [2023-11-29 02:53:20,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 233 states have (on average 1.3047210300429184) internal successors, (304), 243 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:20,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 304 transitions. [2023-11-29 02:53:20,672 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 304 transitions. Word has length 61 [2023-11-29 02:53:20,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:53:20,672 INFO L495 AbstractCegarLoop]: Abstraction has 244 states and 304 transitions. [2023-11-29 02:53:20,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:20,673 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 304 transitions. [2023-11-29 02:53:20,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-29 02:53:20,673 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:53:20,674 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] [2023-11-29 02:53:20,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 02:53:20,674 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-29 02:53:20,674 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:53:20,675 INFO L85 PathProgramCache]: Analyzing trace with hash -1551029823, now seen corresponding path program 1 times [2023-11-29 02:53:20,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:53:20,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589652830] [2023-11-29 02:53:20,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:53:20,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:53:20,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:53:21,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:53:21,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:53:21,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589652830] [2023-11-29 02:53:21,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589652830] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:53:21,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:53:21,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 02:53:21,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975097288] [2023-11-29 02:53:21,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:53:21,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 02:53:21,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:53:21,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 02:53:21,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-11-29 02:53:21,064 INFO L87 Difference]: Start difference. First operand 244 states and 304 transitions. Second operand has 10 states, 10 states have (on average 6.1) internal successors, (61), 9 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:21,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:53:21,692 INFO L93 Difference]: Finished difference Result 576 states and 755 transitions. [2023-11-29 02:53:21,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 02:53:21,693 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 9 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2023-11-29 02:53:21,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:53:21,696 INFO L225 Difference]: With dead ends: 576 [2023-11-29 02:53:21,696 INFO L226 Difference]: Without dead ends: 483 [2023-11-29 02:53:21,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=248, Unknown=0, NotChecked=0, Total=342 [2023-11-29 02:53:21,698 INFO L413 NwaCegarLoop]: 221 mSDtfsCounter, 1199 mSDsluCounter, 845 mSDsCounter, 0 mSdLazyCounter, 788 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1199 SdHoareTripleChecker+Valid, 1066 SdHoareTripleChecker+Invalid, 793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 788 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 02:53:21,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1199 Valid, 1066 Invalid, 793 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 788 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 02:53:21,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2023-11-29 02:53:21,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 244. [2023-11-29 02:53:21,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 233 states have (on average 1.3004291845493563) internal successors, (303), 243 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:21,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 303 transitions. [2023-11-29 02:53:21,707 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 303 transitions. Word has length 61 [2023-11-29 02:53:21,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:53:21,707 INFO L495 AbstractCegarLoop]: Abstraction has 244 states and 303 transitions. [2023-11-29 02:53:21,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 9 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:21,708 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 303 transitions. [2023-11-29 02:53:21,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-29 02:53:21,708 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:53:21,709 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] [2023-11-29 02:53:21,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 02:53:21,709 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-29 02:53:21,709 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:53:21,709 INFO L85 PathProgramCache]: Analyzing trace with hash -427677757, now seen corresponding path program 1 times [2023-11-29 02:53:21,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:53:21,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418767109] [2023-11-29 02:53:21,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:53:21,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:53:21,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:53:21,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:53:21,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:53:21,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418767109] [2023-11-29 02:53:21,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418767109] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:53:21,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:53:21,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 02:53:21,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586871084] [2023-11-29 02:53:21,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:53:21,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 02:53:21,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:53:21,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 02:53:21,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:53:21,980 INFO L87 Difference]: Start difference. First operand 244 states and 303 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 6 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:22,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:53:22,366 INFO L93 Difference]: Finished difference Result 481 states and 598 transitions. [2023-11-29 02:53:22,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 02:53:22,367 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 6 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2023-11-29 02:53:22,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:53:22,369 INFO L225 Difference]: With dead ends: 481 [2023-11-29 02:53:22,369 INFO L226 Difference]: Without dead ends: 349 [2023-11-29 02:53:22,370 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2023-11-29 02:53:22,371 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 1209 mSDsluCounter, 446 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1209 SdHoareTripleChecker+Valid, 609 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 02:53:22,371 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1209 Valid, 609 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 449 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 02:53:22,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2023-11-29 02:53:22,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 244. [2023-11-29 02:53:22,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 233 states have (on average 1.296137339055794) internal successors, (302), 243 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:22,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 302 transitions. [2023-11-29 02:53:22,378 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 302 transitions. Word has length 61 [2023-11-29 02:53:22,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:53:22,378 INFO L495 AbstractCegarLoop]: Abstraction has 244 states and 302 transitions. [2023-11-29 02:53:22,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 6 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:22,379 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 302 transitions. [2023-11-29 02:53:22,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-29 02:53:22,380 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:53:22,380 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] [2023-11-29 02:53:22,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-29 02:53:22,380 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-29 02:53:22,380 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:53:22,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1026541166, now seen corresponding path program 1 times [2023-11-29 02:53:22,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:53:22,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548940341] [2023-11-29 02:53:22,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:53:22,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:53:22,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:53:22,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:53:22,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:53:22,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548940341] [2023-11-29 02:53:22,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548940341] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:53:22,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:53:22,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 02:53:22,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889212859] [2023-11-29 02:53:22,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:53:22,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 02:53:22,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:53:22,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 02:53:22,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-29 02:53:22,648 INFO L87 Difference]: Start difference. First operand 244 states and 302 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:23,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:53:23,198 INFO L93 Difference]: Finished difference Result 533 states and 694 transitions. [2023-11-29 02:53:23,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 02:53:23,198 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2023-11-29 02:53:23,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:53:23,201 INFO L225 Difference]: With dead ends: 533 [2023-11-29 02:53:23,201 INFO L226 Difference]: Without dead ends: 475 [2023-11-29 02:53:23,202 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-11-29 02:53:23,202 INFO L413 NwaCegarLoop]: 223 mSDtfsCounter, 1372 mSDsluCounter, 710 mSDsCounter, 0 mSdLazyCounter, 698 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1372 SdHoareTripleChecker+Valid, 933 SdHoareTripleChecker+Invalid, 702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 698 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 02:53:23,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1372 Valid, 933 Invalid, 702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 698 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 02:53:23,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2023-11-29 02:53:23,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 244. [2023-11-29 02:53:23,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 233 states have (on average 1.2918454935622317) internal successors, (301), 243 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:23,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 301 transitions. [2023-11-29 02:53:23,211 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 301 transitions. Word has length 63 [2023-11-29 02:53:23,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:53:23,211 INFO L495 AbstractCegarLoop]: Abstraction has 244 states and 301 transitions. [2023-11-29 02:53:23,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:23,212 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 301 transitions. [2023-11-29 02:53:23,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-29 02:53:23,212 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:53:23,213 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] [2023-11-29 02:53:23,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-29 02:53:23,213 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-29 02:53:23,213 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:53:23,213 INFO L85 PathProgramCache]: Analyzing trace with hash 885655936, now seen corresponding path program 1 times [2023-11-29 02:53:23,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:53:23,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38683475] [2023-11-29 02:53:23,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:53:23,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:53:23,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:53:23,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:53:23,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:53:23,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38683475] [2023-11-29 02:53:23,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38683475] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:53:23,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:53:23,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 02:53:23,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611963442] [2023-11-29 02:53:23,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:53:23,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 02:53:23,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:53:23,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 02:53:23,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-29 02:53:23,474 INFO L87 Difference]: Start difference. First operand 244 states and 301 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:24,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:53:24,063 INFO L93 Difference]: Finished difference Result 553 states and 722 transitions. [2023-11-29 02:53:24,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 02:53:24,063 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2023-11-29 02:53:24,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:53:24,065 INFO L225 Difference]: With dead ends: 553 [2023-11-29 02:53:24,065 INFO L226 Difference]: Without dead ends: 483 [2023-11-29 02:53:24,066 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-11-29 02:53:24,066 INFO L413 NwaCegarLoop]: 317 mSDtfsCounter, 1256 mSDsluCounter, 896 mSDsCounter, 0 mSdLazyCounter, 867 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1256 SdHoareTripleChecker+Valid, 1213 SdHoareTripleChecker+Invalid, 872 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 867 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 02:53:24,067 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1256 Valid, 1213 Invalid, 872 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 867 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 02:53:24,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2023-11-29 02:53:24,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 244. [2023-11-29 02:53:24,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 233 states have (on average 1.2875536480686696) internal successors, (300), 243 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:24,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 300 transitions. [2023-11-29 02:53:24,075 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 300 transitions. Word has length 63 [2023-11-29 02:53:24,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:53:24,075 INFO L495 AbstractCegarLoop]: Abstraction has 244 states and 300 transitions. [2023-11-29 02:53:24,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:24,076 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 300 transitions. [2023-11-29 02:53:24,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-29 02:53:24,077 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:53:24,077 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] [2023-11-29 02:53:24,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-29 02:53:24,077 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-29 02:53:24,077 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:53:24,078 INFO L85 PathProgramCache]: Analyzing trace with hash -515644867, now seen corresponding path program 1 times [2023-11-29 02:53:24,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:53:24,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686780724] [2023-11-29 02:53:24,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:53:24,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:53:24,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:53:24,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:53:24,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:53:24,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686780724] [2023-11-29 02:53:24,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686780724] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:53:24,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:53:24,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 02:53:24,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035571887] [2023-11-29 02:53:24,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:53:24,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 02:53:24,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:53:24,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 02:53:24,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-29 02:53:24,363 INFO L87 Difference]: Start difference. First operand 244 states and 300 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:24,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:53:24,983 INFO L93 Difference]: Finished difference Result 530 states and 689 transitions. [2023-11-29 02:53:24,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 02:53:24,983 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2023-11-29 02:53:24,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:53:24,986 INFO L225 Difference]: With dead ends: 530 [2023-11-29 02:53:24,986 INFO L226 Difference]: Without dead ends: 475 [2023-11-29 02:53:24,987 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-11-29 02:53:24,987 INFO L413 NwaCegarLoop]: 299 mSDtfsCounter, 1111 mSDsluCounter, 1131 mSDsCounter, 0 mSdLazyCounter, 986 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1111 SdHoareTripleChecker+Valid, 1430 SdHoareTripleChecker+Invalid, 989 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 986 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 02:53:24,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1111 Valid, 1430 Invalid, 989 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 986 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 02:53:24,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2023-11-29 02:53:24,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 244. [2023-11-29 02:53:24,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 233 states have (on average 1.2832618025751072) internal successors, (299), 243 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:24,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 299 transitions. [2023-11-29 02:53:24,996 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 299 transitions. Word has length 63 [2023-11-29 02:53:24,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:53:24,996 INFO L495 AbstractCegarLoop]: Abstraction has 244 states and 299 transitions. [2023-11-29 02:53:24,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:24,997 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 299 transitions. [2023-11-29 02:53:24,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-29 02:53:24,997 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:53:24,997 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] [2023-11-29 02:53:24,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-29 02:53:24,998 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-29 02:53:24,998 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:53:24,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1781677741, now seen corresponding path program 1 times [2023-11-29 02:53:24,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:53:24,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757565081] [2023-11-29 02:53:24,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:53:24,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:53:25,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:53:25,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:53:25,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:53:25,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757565081] [2023-11-29 02:53:25,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757565081] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:53:25,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:53:25,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 02:53:25,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529337678] [2023-11-29 02:53:25,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:53:25,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 02:53:25,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:53:25,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 02:53:25,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-29 02:53:25,220 INFO L87 Difference]: Start difference. First operand 244 states and 299 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:25,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:53:25,868 INFO L93 Difference]: Finished difference Result 480 states and 613 transitions. [2023-11-29 02:53:25,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 02:53:25,868 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2023-11-29 02:53:25,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:53:25,870 INFO L225 Difference]: With dead ends: 480 [2023-11-29 02:53:25,870 INFO L226 Difference]: Without dead ends: 475 [2023-11-29 02:53:25,871 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-11-29 02:53:25,872 INFO L413 NwaCegarLoop]: 308 mSDtfsCounter, 783 mSDsluCounter, 906 mSDsCounter, 0 mSdLazyCounter, 953 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 783 SdHoareTripleChecker+Valid, 1214 SdHoareTripleChecker+Invalid, 956 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 953 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 02:53:25,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [783 Valid, 1214 Invalid, 956 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 953 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 02:53:25,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2023-11-29 02:53:25,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 244. [2023-11-29 02:53:25,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 233 states have (on average 1.2789699570815452) internal successors, (298), 243 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:25,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 298 transitions. [2023-11-29 02:53:25,879 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 298 transitions. Word has length 63 [2023-11-29 02:53:25,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:53:25,880 INFO L495 AbstractCegarLoop]: Abstraction has 244 states and 298 transitions. [2023-11-29 02:53:25,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:25,880 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 298 transitions. [2023-11-29 02:53:25,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-29 02:53:25,881 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:53:25,881 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] [2023-11-29 02:53:25,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-29 02:53:25,881 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-29 02:53:25,882 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:53:25,882 INFO L85 PathProgramCache]: Analyzing trace with hash 100501655, now seen corresponding path program 1 times [2023-11-29 02:53:25,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:53:25,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848580741] [2023-11-29 02:53:25,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:53:25,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:53:25,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:53:26,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:53:26,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:53:26,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848580741] [2023-11-29 02:53:26,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848580741] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:53:26,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:53:26,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 02:53:26,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571215766] [2023-11-29 02:53:26,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:53:26,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 02:53:26,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:53:26,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 02:53:26,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-29 02:53:26,097 INFO L87 Difference]: Start difference. First operand 244 states and 298 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:26,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:53:26,768 INFO L93 Difference]: Finished difference Result 480 states and 611 transitions. [2023-11-29 02:53:26,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 02:53:26,768 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2023-11-29 02:53:26,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:53:26,771 INFO L225 Difference]: With dead ends: 480 [2023-11-29 02:53:26,771 INFO L226 Difference]: Without dead ends: 475 [2023-11-29 02:53:26,772 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-11-29 02:53:26,772 INFO L413 NwaCegarLoop]: 307 mSDtfsCounter, 1080 mSDsluCounter, 1137 mSDsCounter, 0 mSdLazyCounter, 972 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1080 SdHoareTripleChecker+Valid, 1444 SdHoareTripleChecker+Invalid, 975 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 972 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 02:53:26,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1080 Valid, 1444 Invalid, 975 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 972 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 02:53:26,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2023-11-29 02:53:26,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 244. [2023-11-29 02:53:26,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 233 states have (on average 1.2746781115879828) internal successors, (297), 243 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:26,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 297 transitions. [2023-11-29 02:53:26,780 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 297 transitions. Word has length 63 [2023-11-29 02:53:26,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:53:26,780 INFO L495 AbstractCegarLoop]: Abstraction has 244 states and 297 transitions. [2023-11-29 02:53:26,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:26,781 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 297 transitions. [2023-11-29 02:53:26,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-29 02:53:26,781 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:53:26,782 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] [2023-11-29 02:53:26,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-29 02:53:26,782 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-29 02:53:26,782 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:53:26,782 INFO L85 PathProgramCache]: Analyzing trace with hash 2012698757, now seen corresponding path program 1 times [2023-11-29 02:53:26,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:53:26,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670556759] [2023-11-29 02:53:26,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:53:26,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:53:26,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:53:26,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:53:26,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:53:26,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670556759] [2023-11-29 02:53:26,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670556759] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:53:26,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:53:26,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 02:53:26,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204767677] [2023-11-29 02:53:26,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:53:26,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 02:53:26,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:53:26,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 02:53:26,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-29 02:53:26,985 INFO L87 Difference]: Start difference. First operand 244 states and 297 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:27,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:53:27,499 INFO L93 Difference]: Finished difference Result 500 states and 639 transitions. [2023-11-29 02:53:27,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 02:53:27,499 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2023-11-29 02:53:27,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:53:27,502 INFO L225 Difference]: With dead ends: 500 [2023-11-29 02:53:27,502 INFO L226 Difference]: Without dead ends: 483 [2023-11-29 02:53:27,502 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-11-29 02:53:27,503 INFO L413 NwaCegarLoop]: 311 mSDtfsCounter, 812 mSDsluCounter, 968 mSDsCounter, 0 mSdLazyCounter, 904 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 812 SdHoareTripleChecker+Valid, 1279 SdHoareTripleChecker+Invalid, 907 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 904 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 02:53:27,503 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [812 Valid, 1279 Invalid, 907 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 904 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 02:53:27,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2023-11-29 02:53:27,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 244. [2023-11-29 02:53:27,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 233 states have (on average 1.2703862660944205) internal successors, (296), 243 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:27,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 296 transitions. [2023-11-29 02:53:27,508 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 296 transitions. Word has length 63 [2023-11-29 02:53:27,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:53:27,508 INFO L495 AbstractCegarLoop]: Abstraction has 244 states and 296 transitions. [2023-11-29 02:53:27,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:27,509 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 296 transitions. [2023-11-29 02:53:27,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-29 02:53:27,509 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:53:27,510 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] [2023-11-29 02:53:27,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-29 02:53:27,510 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-29 02:53:27,510 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:53:27,510 INFO L85 PathProgramCache]: Analyzing trace with hash -522081681, now seen corresponding path program 1 times [2023-11-29 02:53:27,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:53:27,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089715040] [2023-11-29 02:53:27,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:53:27,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:53:27,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:53:28,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:53:28,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:53:28,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089715040] [2023-11-29 02:53:28,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089715040] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:53:28,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:53:28,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-29 02:53:28,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426281612] [2023-11-29 02:53:28,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:53:28,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 02:53:28,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:53:28,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 02:53:28,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-11-29 02:53:28,114 INFO L87 Difference]: Start difference. First operand 244 states and 296 transitions. Second operand has 13 states, 13 states have (on average 5.0) internal successors, (65), 12 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:29,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:53:29,272 INFO L93 Difference]: Finished difference Result 615 states and 759 transitions. [2023-11-29 02:53:29,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 02:53:29,272 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.0) internal successors, (65), 12 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2023-11-29 02:53:29,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:53:29,274 INFO L225 Difference]: With dead ends: 615 [2023-11-29 02:53:29,275 INFO L226 Difference]: Without dead ends: 558 [2023-11-29 02:53:29,275 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=158, Invalid=492, Unknown=0, NotChecked=0, Total=650 [2023-11-29 02:53:29,276 INFO L413 NwaCegarLoop]: 337 mSDtfsCounter, 1353 mSDsluCounter, 2503 mSDsCounter, 0 mSdLazyCounter, 934 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1353 SdHoareTripleChecker+Valid, 2840 SdHoareTripleChecker+Invalid, 934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 934 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 02:53:29,276 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1353 Valid, 2840 Invalid, 934 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 934 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 02:53:29,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2023-11-29 02:53:29,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 240. [2023-11-29 02:53:29,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 230 states have (on average 1.2652173913043478) internal successors, (291), 239 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:29,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 291 transitions. [2023-11-29 02:53:29,283 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 291 transitions. Word has length 65 [2023-11-29 02:53:29,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:53:29,284 INFO L495 AbstractCegarLoop]: Abstraction has 240 states and 291 transitions. [2023-11-29 02:53:29,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.0) internal successors, (65), 12 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:29,284 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 291 transitions. [2023-11-29 02:53:29,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-29 02:53:29,285 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:53:29,285 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] [2023-11-29 02:53:29,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-29 02:53:29,285 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-29 02:53:29,286 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:53:29,286 INFO L85 PathProgramCache]: Analyzing trace with hash 1992368467, now seen corresponding path program 1 times [2023-11-29 02:53:29,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:53:29,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583252938] [2023-11-29 02:53:29,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:53:29,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:53:29,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:53:30,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:53:30,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:53:30,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583252938] [2023-11-29 02:53:30,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583252938] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:53:30,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:53:30,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2023-11-29 02:53:30,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632039559] [2023-11-29 02:53:30,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:53:30,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-29 02:53:30,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:53:30,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-29 02:53:30,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=488, Unknown=0, NotChecked=0, Total=552 [2023-11-29 02:53:30,829 INFO L87 Difference]: Start difference. First operand 240 states and 291 transitions. Second operand has 24 states, 24 states have (on average 2.7083333333333335) internal successors, (65), 23 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:34,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:53:34,245 INFO L93 Difference]: Finished difference Result 941 states and 1209 transitions. [2023-11-29 02:53:34,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-11-29 02:53:34,246 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 2.7083333333333335) internal successors, (65), 23 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2023-11-29 02:53:34,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:53:34,250 INFO L225 Difference]: With dead ends: 941 [2023-11-29 02:53:34,251 INFO L226 Difference]: Without dead ends: 881 [2023-11-29 02:53:34,251 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 275 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=360, Invalid=1620, Unknown=0, NotChecked=0, Total=1980 [2023-11-29 02:53:34,252 INFO L413 NwaCegarLoop]: 521 mSDtfsCounter, 2629 mSDsluCounter, 6371 mSDsCounter, 0 mSdLazyCounter, 3235 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2629 SdHoareTripleChecker+Valid, 6892 SdHoareTripleChecker+Invalid, 3236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:53:34,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2629 Valid, 6892 Invalid, 3236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3235 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-29 02:53:34,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 881 states. [2023-11-29 02:53:34,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 881 to 250. [2023-11-29 02:53:34,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 240 states have (on average 1.2625) internal successors, (303), 249 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:34,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 303 transitions. [2023-11-29 02:53:34,258 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 303 transitions. Word has length 65 [2023-11-29 02:53:34,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:53:34,259 INFO L495 AbstractCegarLoop]: Abstraction has 250 states and 303 transitions. [2023-11-29 02:53:34,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 2.7083333333333335) internal successors, (65), 23 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:34,259 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 303 transitions. [2023-11-29 02:53:34,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-29 02:53:34,260 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:53:34,260 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] [2023-11-29 02:53:34,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-29 02:53:34,260 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-29 02:53:34,260 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:53:34,260 INFO L85 PathProgramCache]: Analyzing trace with hash 1545464944, now seen corresponding path program 1 times [2023-11-29 02:53:34,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:53:34,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746832095] [2023-11-29 02:53:34,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:53:34,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:53:34,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:53:34,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:53:34,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:53:34,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746832095] [2023-11-29 02:53:34,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746832095] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:53:34,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:53:34,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-29 02:53:34,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236828596] [2023-11-29 02:53:34,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:53:34,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 02:53:34,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:53:34,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 02:53:34,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-11-29 02:53:34,714 INFO L87 Difference]: Start difference. First operand 250 states and 303 transitions. Second operand has 13 states, 13 states have (on average 5.0) internal successors, (65), 12 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:35,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:53:35,628 INFO L93 Difference]: Finished difference Result 938 states and 1247 transitions. [2023-11-29 02:53:35,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-29 02:53:35,629 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.0) internal successors, (65), 12 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2023-11-29 02:53:35,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:53:35,632 INFO L225 Difference]: With dead ends: 938 [2023-11-29 02:53:35,633 INFO L226 Difference]: Without dead ends: 878 [2023-11-29 02:53:35,633 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=157, Invalid=493, Unknown=0, NotChecked=0, Total=650 [2023-11-29 02:53:35,634 INFO L413 NwaCegarLoop]: 569 mSDtfsCounter, 2172 mSDsluCounter, 3500 mSDsCounter, 0 mSdLazyCounter, 749 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2172 SdHoareTripleChecker+Valid, 4069 SdHoareTripleChecker+Invalid, 749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 02:53:35,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2172 Valid, 4069 Invalid, 749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 749 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 02:53:35,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 878 states. [2023-11-29 02:53:35,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 878 to 243. [2023-11-29 02:53:35,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 233 states have (on average 1.257510729613734) internal successors, (293), 242 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:35,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 293 transitions. [2023-11-29 02:53:35,640 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 293 transitions. Word has length 65 [2023-11-29 02:53:35,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:53:35,640 INFO L495 AbstractCegarLoop]: Abstraction has 243 states and 293 transitions. [2023-11-29 02:53:35,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.0) internal successors, (65), 12 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:35,640 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 293 transitions. [2023-11-29 02:53:35,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-29 02:53:35,641 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:53:35,641 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] [2023-11-29 02:53:35,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-29 02:53:35,641 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-29 02:53:35,641 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:53:35,642 INFO L85 PathProgramCache]: Analyzing trace with hash -2139372300, now seen corresponding path program 1 times [2023-11-29 02:53:35,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:53:35,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778049241] [2023-11-29 02:53:35,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:53:35,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:53:35,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:53:36,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:53:36,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:53:36,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778049241] [2023-11-29 02:53:36,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778049241] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:53:36,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:53:36,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2023-11-29 02:53:36,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537464881] [2023-11-29 02:53:36,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:53:36,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-29 02:53:36,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:53:36,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-29 02:53:36,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=406, Unknown=0, NotChecked=0, Total=462 [2023-11-29 02:53:36,710 INFO L87 Difference]: Start difference. First operand 243 states and 293 transitions. Second operand has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 21 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:39,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:53:39,237 INFO L93 Difference]: Finished difference Result 666 states and 837 transitions. [2023-11-29 02:53:39,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-29 02:53:39,238 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 21 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2023-11-29 02:53:39,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:53:39,241 INFO L225 Difference]: With dead ends: 666 [2023-11-29 02:53:39,241 INFO L226 Difference]: Without dead ends: 606 [2023-11-29 02:53:39,242 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=342, Invalid=1218, Unknown=0, NotChecked=0, Total=1560 [2023-11-29 02:53:39,242 INFO L413 NwaCegarLoop]: 536 mSDtfsCounter, 2840 mSDsluCounter, 5307 mSDsCounter, 0 mSdLazyCounter, 2541 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2840 SdHoareTripleChecker+Valid, 5843 SdHoareTripleChecker+Invalid, 2544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-29 02:53:39,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2840 Valid, 5843 Invalid, 2544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2541 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-29 02:53:39,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2023-11-29 02:53:39,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 249. [2023-11-29 02:53:39,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 239 states have (on average 1.2510460251046025) internal successors, (299), 248 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:39,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 299 transitions. [2023-11-29 02:53:39,249 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 299 transitions. Word has length 65 [2023-11-29 02:53:39,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:53:39,249 INFO L495 AbstractCegarLoop]: Abstraction has 249 states and 299 transitions. [2023-11-29 02:53:39,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 21 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:39,250 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 299 transitions. [2023-11-29 02:53:39,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-29 02:53:39,250 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:53:39,251 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] [2023-11-29 02:53:39,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-29 02:53:39,251 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-29 02:53:39,251 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:53:39,251 INFO L85 PathProgramCache]: Analyzing trace with hash 1614163178, now seen corresponding path program 1 times [2023-11-29 02:53:39,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:53:39,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96836800] [2023-11-29 02:53:39,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:53:39,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:53:39,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:53:39,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:53:39,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:53:39,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96836800] [2023-11-29 02:53:39,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96836800] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:53:39,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:53:39,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-29 02:53:39,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904664079] [2023-11-29 02:53:39,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:53:39,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 02:53:39,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:53:39,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 02:53:39,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-11-29 02:53:39,781 INFO L87 Difference]: Start difference. First operand 249 states and 299 transitions. Second operand has 13 states, 13 states have (on average 5.0) internal successors, (65), 12 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:40,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:53:40,539 INFO L93 Difference]: Finished difference Result 597 states and 738 transitions. [2023-11-29 02:53:40,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 02:53:40,540 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.0) internal successors, (65), 12 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2023-11-29 02:53:40,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:53:40,543 INFO L225 Difference]: With dead ends: 597 [2023-11-29 02:53:40,543 INFO L226 Difference]: Without dead ends: 540 [2023-11-29 02:53:40,543 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2023-11-29 02:53:40,544 INFO L413 NwaCegarLoop]: 265 mSDtfsCounter, 1405 mSDsluCounter, 1899 mSDsCounter, 0 mSdLazyCounter, 664 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1405 SdHoareTripleChecker+Valid, 2164 SdHoareTripleChecker+Invalid, 664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 02:53:40,544 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1405 Valid, 2164 Invalid, 664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 664 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 02:53:40,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2023-11-29 02:53:40,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 245. [2023-11-29 02:53:40,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 236 states have (on average 1.2457627118644068) internal successors, (294), 244 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:40,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 294 transitions. [2023-11-29 02:53:40,550 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 294 transitions. Word has length 65 [2023-11-29 02:53:40,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:53:40,551 INFO L495 AbstractCegarLoop]: Abstraction has 245 states and 294 transitions. [2023-11-29 02:53:40,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.0) internal successors, (65), 12 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:40,551 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 294 transitions. [2023-11-29 02:53:40,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-29 02:53:40,552 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:53:40,552 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] [2023-11-29 02:53:40,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-29 02:53:40,552 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-29 02:53:40,552 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:53:40,553 INFO L85 PathProgramCache]: Analyzing trace with hash 234306004, now seen corresponding path program 1 times [2023-11-29 02:53:40,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:53:40,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251347977] [2023-11-29 02:53:40,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:53:40,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:53:40,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:53:41,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:53:41,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:53:41,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251347977] [2023-11-29 02:53:41,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251347977] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:53:41,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:53:41,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-29 02:53:41,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009794418] [2023-11-29 02:53:41,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:53:41,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 02:53:41,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:53:41,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 02:53:41,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-11-29 02:53:41,069 INFO L87 Difference]: Start difference. First operand 245 states and 294 transitions. Second operand has 13 states, 13 states have (on average 5.0) internal successors, (65), 12 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:41,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:53:41,773 INFO L93 Difference]: Finished difference Result 543 states and 659 transitions. [2023-11-29 02:53:41,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 02:53:41,774 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.0) internal successors, (65), 12 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2023-11-29 02:53:41,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:53:41,776 INFO L225 Difference]: With dead ends: 543 [2023-11-29 02:53:41,776 INFO L226 Difference]: Without dead ends: 539 [2023-11-29 02:53:41,776 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=158, Invalid=492, Unknown=0, NotChecked=0, Total=650 [2023-11-29 02:53:41,777 INFO L413 NwaCegarLoop]: 259 mSDtfsCounter, 1732 mSDsluCounter, 1514 mSDsCounter, 0 mSdLazyCounter, 554 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1732 SdHoareTripleChecker+Valid, 1773 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 02:53:41,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1732 Valid, 1773 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 554 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 02:53:41,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2023-11-29 02:53:41,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 241. [2023-11-29 02:53:41,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 233 states have (on average 1.2446351931330473) internal successors, (290), 240 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:41,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 290 transitions. [2023-11-29 02:53:41,781 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 290 transitions. Word has length 65 [2023-11-29 02:53:41,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:53:41,782 INFO L495 AbstractCegarLoop]: Abstraction has 241 states and 290 transitions. [2023-11-29 02:53:41,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.0) internal successors, (65), 12 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:41,782 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 290 transitions. [2023-11-29 02:53:41,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-29 02:53:41,783 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:53:41,783 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] [2023-11-29 02:53:41,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-29 02:53:41,783 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-29 02:53:41,783 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:53:41,784 INFO L85 PathProgramCache]: Analyzing trace with hash -1546211144, now seen corresponding path program 1 times [2023-11-29 02:53:41,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:53:41,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101410611] [2023-11-29 02:53:41,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:53:41,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:53:41,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:53:42,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:53:42,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:53:42,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101410611] [2023-11-29 02:53:42,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101410611] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:53:42,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:53:42,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2023-11-29 02:53:42,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854003724] [2023-11-29 02:53:42,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:53:42,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-11-29 02:53:42,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:53:42,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-11-29 02:53:42,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=446, Unknown=0, NotChecked=0, Total=506 [2023-11-29 02:53:42,917 INFO L87 Difference]: Start difference. First operand 241 states and 290 transitions. Second operand has 23 states, 23 states have (on average 2.8260869565217392) internal successors, (65), 22 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:45,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:53:45,145 INFO L93 Difference]: Finished difference Result 749 states and 934 transitions. [2023-11-29 02:53:45,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-29 02:53:45,145 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.8260869565217392) internal successors, (65), 22 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2023-11-29 02:53:45,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:53:45,149 INFO L225 Difference]: With dead ends: 749 [2023-11-29 02:53:45,149 INFO L226 Difference]: Without dead ends: 689 [2023-11-29 02:53:45,150 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=278, Invalid=1362, Unknown=0, NotChecked=0, Total=1640 [2023-11-29 02:53:45,150 INFO L413 NwaCegarLoop]: 429 mSDtfsCounter, 1652 mSDsluCounter, 5156 mSDsCounter, 0 mSdLazyCounter, 2829 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1652 SdHoareTripleChecker+Valid, 5585 SdHoareTripleChecker+Invalid, 2832 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2829 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-29 02:53:45,151 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1652 Valid, 5585 Invalid, 2832 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2829 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-29 02:53:45,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 689 states. [2023-11-29 02:53:45,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 689 to 255. [2023-11-29 02:53:45,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 247 states have (on average 1.2469635627530364) internal successors, (308), 254 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:45,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 308 transitions. [2023-11-29 02:53:45,155 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 308 transitions. Word has length 65 [2023-11-29 02:53:45,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:53:45,156 INFO L495 AbstractCegarLoop]: Abstraction has 255 states and 308 transitions. [2023-11-29 02:53:45,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.8260869565217392) internal successors, (65), 22 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:45,156 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 308 transitions. [2023-11-29 02:53:45,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-29 02:53:45,156 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:53:45,156 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] [2023-11-29 02:53:45,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-29 02:53:45,157 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-29 02:53:45,157 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:53:45,157 INFO L85 PathProgramCache]: Analyzing trace with hash 1710848008, now seen corresponding path program 1 times [2023-11-29 02:53:45,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:53:45,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638596542] [2023-11-29 02:53:45,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:53:45,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:53:45,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:53:45,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:53:45,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:53:45,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638596542] [2023-11-29 02:53:45,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638596542] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:53:45,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:53:45,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 02:53:45,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666146599] [2023-11-29 02:53:45,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:53:45,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 02:53:45,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:53:45,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 02:53:45,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-11-29 02:53:45,524 INFO L87 Difference]: Start difference. First operand 255 states and 308 transitions. Second operand has 11 states, 11 states have (on average 6.0) internal successors, (66), 10 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:46,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:53:46,289 INFO L93 Difference]: Finished difference Result 517 states and 655 transitions. [2023-11-29 02:53:46,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-29 02:53:46,290 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.0) internal successors, (66), 10 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2023-11-29 02:53:46,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:53:46,292 INFO L225 Difference]: With dead ends: 517 [2023-11-29 02:53:46,292 INFO L226 Difference]: Without dead ends: 510 [2023-11-29 02:53:46,292 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=215, Invalid=541, Unknown=0, NotChecked=0, Total=756 [2023-11-29 02:53:46,293 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 2577 mSDsluCounter, 756 mSDsCounter, 0 mSdLazyCounter, 740 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2577 SdHoareTripleChecker+Valid, 931 SdHoareTripleChecker+Invalid, 817 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 740 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 02:53:46,293 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2577 Valid, 931 Invalid, 817 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 740 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 02:53:46,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2023-11-29 02:53:46,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 259. [2023-11-29 02:53:46,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 251 states have (on average 1.2430278884462151) internal successors, (312), 258 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:46,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 312 transitions. [2023-11-29 02:53:46,297 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 312 transitions. Word has length 66 [2023-11-29 02:53:46,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:53:46,298 INFO L495 AbstractCegarLoop]: Abstraction has 259 states and 312 transitions. [2023-11-29 02:53:46,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.0) internal successors, (66), 10 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:46,298 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 312 transitions. [2023-11-29 02:53:46,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-29 02:53:46,299 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:53:46,300 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] [2023-11-29 02:53:46,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-29 02:53:46,300 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-29 02:53:46,300 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:53:46,300 INFO L85 PathProgramCache]: Analyzing trace with hash 1171437196, now seen corresponding path program 1 times [2023-11-29 02:53:46,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:53:46,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533528379] [2023-11-29 02:53:46,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:53:46,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:53:46,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:53:46,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:53:46,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:53:46,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533528379] [2023-11-29 02:53:46,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533528379] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:53:46,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:53:46,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-11-29 02:53:46,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995591115] [2023-11-29 02:53:46,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:53:46,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 02:53:46,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:53:46,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 02:53:46,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2023-11-29 02:53:46,978 INFO L87 Difference]: Start difference. First operand 259 states and 312 transitions. Second operand has 14 states, 14 states have (on average 4.714285714285714) internal successors, (66), 13 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:48,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:53:48,249 INFO L93 Difference]: Finished difference Result 641 states and 814 transitions. [2023-11-29 02:53:48,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-29 02:53:48,249 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.714285714285714) internal successors, (66), 13 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2023-11-29 02:53:48,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:53:48,252 INFO L225 Difference]: With dead ends: 641 [2023-11-29 02:53:48,252 INFO L226 Difference]: Without dead ends: 576 [2023-11-29 02:53:48,253 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=179, Invalid=523, Unknown=0, NotChecked=0, Total=702 [2023-11-29 02:53:48,253 INFO L413 NwaCegarLoop]: 310 mSDtfsCounter, 2018 mSDsluCounter, 2321 mSDsCounter, 0 mSdLazyCounter, 1060 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2018 SdHoareTripleChecker+Valid, 2631 SdHoareTripleChecker+Invalid, 1061 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1060 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 02:53:48,254 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2018 Valid, 2631 Invalid, 1061 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1060 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 02:53:48,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states. [2023-11-29 02:53:48,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 253. [2023-11-29 02:53:48,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 245 states have (on average 1.236734693877551) internal successors, (303), 252 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:48,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 303 transitions. [2023-11-29 02:53:48,258 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 303 transitions. Word has length 66 [2023-11-29 02:53:48,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:53:48,258 INFO L495 AbstractCegarLoop]: Abstraction has 253 states and 303 transitions. [2023-11-29 02:53:48,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.714285714285714) internal successors, (66), 13 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:48,259 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 303 transitions. [2023-11-29 02:53:48,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-29 02:53:48,259 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:53:48,259 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] [2023-11-29 02:53:48,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-29 02:53:48,260 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-29 02:53:48,260 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:53:48,260 INFO L85 PathProgramCache]: Analyzing trace with hash 1810811317, now seen corresponding path program 1 times [2023-11-29 02:53:48,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:53:48,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903980984] [2023-11-29 02:53:48,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:53:48,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:53:48,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:53:48,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:53:48,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:53:48,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903980984] [2023-11-29 02:53:48,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903980984] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:53:48,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:53:48,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 02:53:48,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73175452] [2023-11-29 02:53:48,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:53:48,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 02:53:48,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:53:48,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 02:53:48,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-11-29 02:53:48,603 INFO L87 Difference]: Start difference. First operand 253 states and 303 transitions. Second operand has 10 states, 10 states have (on average 6.6) internal successors, (66), 9 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:48,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:53:48,965 INFO L93 Difference]: Finished difference Result 574 states and 721 transitions. [2023-11-29 02:53:48,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 02:53:48,966 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.6) internal successors, (66), 9 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2023-11-29 02:53:48,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:53:48,967 INFO L225 Difference]: With dead ends: 574 [2023-11-29 02:53:48,967 INFO L226 Difference]: Without dead ends: 455 [2023-11-29 02:53:48,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342 [2023-11-29 02:53:48,968 INFO L413 NwaCegarLoop]: 249 mSDtfsCounter, 1769 mSDsluCounter, 769 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1769 SdHoareTripleChecker+Valid, 1018 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:53:48,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1769 Valid, 1018 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 02:53:48,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2023-11-29 02:53:48,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 187. [2023-11-29 02:53:48,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 182 states have (on average 1.2527472527472527) internal successors, (228), 186 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:48,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 228 transitions. [2023-11-29 02:53:48,972 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 228 transitions. Word has length 66 [2023-11-29 02:53:48,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:53:48,972 INFO L495 AbstractCegarLoop]: Abstraction has 187 states and 228 transitions. [2023-11-29 02:53:48,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.6) internal successors, (66), 9 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:48,972 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 228 transitions. [2023-11-29 02:53:48,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-29 02:53:48,973 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:53:48,973 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] [2023-11-29 02:53:48,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-11-29 02:53:48,973 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-29 02:53:48,973 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:53:48,974 INFO L85 PathProgramCache]: Analyzing trace with hash 1841751753, now seen corresponding path program 1 times [2023-11-29 02:53:48,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:53:48,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68761880] [2023-11-29 02:53:48,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:53:48,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:53:48,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:53:49,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:53:49,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:53:49,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68761880] [2023-11-29 02:53:49,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68761880] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:53:49,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:53:49,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-11-29 02:53:49,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346127850] [2023-11-29 02:53:49,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:53:49,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-29 02:53:49,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:53:49,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-29 02:53:49,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2023-11-29 02:53:49,829 INFO L87 Difference]: Start difference. First operand 187 states and 228 transitions. Second operand has 19 states, 19 states have (on average 3.473684210526316) internal successors, (66), 18 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:51,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:53:51,572 INFO L93 Difference]: Finished difference Result 680 states and 879 transitions. [2023-11-29 02:53:51,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-29 02:53:51,572 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.473684210526316) internal successors, (66), 18 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2023-11-29 02:53:51,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:53:51,575 INFO L225 Difference]: With dead ends: 680 [2023-11-29 02:53:51,575 INFO L226 Difference]: Without dead ends: 620 [2023-11-29 02:53:51,575 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=289, Invalid=1043, Unknown=0, NotChecked=0, Total=1332 [2023-11-29 02:53:51,576 INFO L413 NwaCegarLoop]: 510 mSDtfsCounter, 1464 mSDsluCounter, 4544 mSDsCounter, 0 mSdLazyCounter, 1579 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1464 SdHoareTripleChecker+Valid, 5054 SdHoareTripleChecker+Invalid, 1582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 02:53:51,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1464 Valid, 5054 Invalid, 1582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1579 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 02:53:51,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 620 states. [2023-11-29 02:53:51,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 620 to 172. [2023-11-29 02:53:51,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 167 states have (on average 1.2395209580838322) internal successors, (207), 171 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:51,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 207 transitions. [2023-11-29 02:53:51,581 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 207 transitions. Word has length 66 [2023-11-29 02:53:51,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:53:51,581 INFO L495 AbstractCegarLoop]: Abstraction has 172 states and 207 transitions. [2023-11-29 02:53:51,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.473684210526316) internal successors, (66), 18 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:51,581 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 207 transitions. [2023-11-29 02:53:51,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-29 02:53:51,582 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:53:51,582 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] [2023-11-29 02:53:51,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-11-29 02:53:51,582 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-29 02:53:51,582 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:53:51,583 INFO L85 PathProgramCache]: Analyzing trace with hash -785038328, now seen corresponding path program 1 times [2023-11-29 02:53:51,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:53:51,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888912762] [2023-11-29 02:53:51,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:53:51,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:53:51,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:53:51,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:53:51,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:53:51,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888912762] [2023-11-29 02:53:51,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888912762] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:53:51,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:53:51,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 02:53:51,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740209673] [2023-11-29 02:53:51,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:53:51,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 02:53:51,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:53:51,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 02:53:51,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-29 02:53:51,749 INFO L87 Difference]: Start difference. First operand 172 states and 207 transitions. Second operand has 8 states, 8 states have (on average 8.25) internal successors, (66), 7 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:52,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:53:52,043 INFO L93 Difference]: Finished difference Result 267 states and 328 transitions. [2023-11-29 02:53:52,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 02:53:52,043 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 7 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2023-11-29 02:53:52,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:53:52,045 INFO L225 Difference]: With dead ends: 267 [2023-11-29 02:53:52,045 INFO L226 Difference]: Without dead ends: 260 [2023-11-29 02:53:52,045 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2023-11-29 02:53:52,046 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 632 mSDsluCounter, 550 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 632 SdHoareTripleChecker+Valid, 681 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:53:52,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [632 Valid, 681 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 02:53:52,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2023-11-29 02:53:52,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 172. [2023-11-29 02:53:52,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 167 states have (on average 1.2335329341317365) internal successors, (206), 171 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:52,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 206 transitions. [2023-11-29 02:53:52,050 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 206 transitions. Word has length 66 [2023-11-29 02:53:52,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:53:52,050 INFO L495 AbstractCegarLoop]: Abstraction has 172 states and 206 transitions. [2023-11-29 02:53:52,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 7 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:52,050 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 206 transitions. [2023-11-29 02:53:52,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-29 02:53:52,051 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:53:52,051 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] [2023-11-29 02:53:52,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-11-29 02:53:52,051 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-29 02:53:52,052 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:53:52,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1670965080, now seen corresponding path program 1 times [2023-11-29 02:53:52,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:53:52,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469525123] [2023-11-29 02:53:52,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:53:52,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:53:52,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:53:52,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:53:52,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:53:52,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469525123] [2023-11-29 02:53:52,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469525123] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:53:52,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:53:52,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 02:53:52,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777221530] [2023-11-29 02:53:52,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:53:52,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 02:53:52,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:53:52,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 02:53:52,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-29 02:53:52,194 INFO L87 Difference]: Start difference. First operand 172 states and 206 transitions. Second operand has 8 states, 8 states have (on average 8.25) internal successors, (66), 7 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:52,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:53:52,473 INFO L93 Difference]: Finished difference Result 335 states and 424 transitions. [2023-11-29 02:53:52,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 02:53:52,473 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 7 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2023-11-29 02:53:52,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:53:52,475 INFO L225 Difference]: With dead ends: 335 [2023-11-29 02:53:52,475 INFO L226 Difference]: Without dead ends: 264 [2023-11-29 02:53:52,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2023-11-29 02:53:52,476 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 734 mSDsluCounter, 457 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 734 SdHoareTripleChecker+Valid, 646 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:53:52,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [734 Valid, 646 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 02:53:52,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2023-11-29 02:53:52,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 172. [2023-11-29 02:53:52,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 167 states have (on average 1.2275449101796407) internal successors, (205), 171 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:52,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 205 transitions. [2023-11-29 02:53:52,478 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 205 transitions. Word has length 66 [2023-11-29 02:53:52,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:53:52,478 INFO L495 AbstractCegarLoop]: Abstraction has 172 states and 205 transitions. [2023-11-29 02:53:52,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 7 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:52,479 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 205 transitions. [2023-11-29 02:53:52,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-29 02:53:52,479 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:53:52,479 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] [2023-11-29 02:53:52,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-11-29 02:53:52,479 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-29 02:53:52,479 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:53:52,479 INFO L85 PathProgramCache]: Analyzing trace with hash -610937680, now seen corresponding path program 1 times [2023-11-29 02:53:52,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:53:52,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822113420] [2023-11-29 02:53:52,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:53:52,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:53:52,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:53:52,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:53:52,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:53:52,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822113420] [2023-11-29 02:53:52,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822113420] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:53:52,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:53:52,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 02:53:52,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879577678] [2023-11-29 02:53:52,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:53:52,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 02:53:52,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:53:52,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 02:53:52,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-29 02:53:52,611 INFO L87 Difference]: Start difference. First operand 172 states and 205 transitions. Second operand has 8 states, 8 states have (on average 8.25) internal successors, (66), 7 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:52,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:53:52,932 INFO L93 Difference]: Finished difference Result 267 states and 326 transitions. [2023-11-29 02:53:52,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 02:53:52,933 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 7 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2023-11-29 02:53:52,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:53:52,934 INFO L225 Difference]: With dead ends: 267 [2023-11-29 02:53:52,934 INFO L226 Difference]: Without dead ends: 260 [2023-11-29 02:53:52,934 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2023-11-29 02:53:52,935 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 627 mSDsluCounter, 563 mSDsCounter, 0 mSdLazyCounter, 542 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 627 SdHoareTripleChecker+Valid, 746 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:53:52,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [627 Valid, 746 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 542 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 02:53:52,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2023-11-29 02:53:52,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 172. [2023-11-29 02:53:52,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 167 states have (on average 1.221556886227545) internal successors, (204), 171 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:52,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 204 transitions. [2023-11-29 02:53:52,938 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 204 transitions. Word has length 66 [2023-11-29 02:53:52,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:53:52,939 INFO L495 AbstractCegarLoop]: Abstraction has 172 states and 204 transitions. [2023-11-29 02:53:52,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 7 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:52,939 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 204 transitions. [2023-11-29 02:53:52,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-29 02:53:52,939 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:53:52,939 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] [2023-11-29 02:53:52,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-11-29 02:53:52,939 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-29 02:53:52,939 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:53:52,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1150348492, now seen corresponding path program 1 times [2023-11-29 02:53:52,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:53:52,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562039733] [2023-11-29 02:53:52,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:53:52,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:53:52,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:53:53,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:53:53,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:53:53,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562039733] [2023-11-29 02:53:53,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562039733] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:53:53,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:53:53,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-11-29 02:53:53,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546491922] [2023-11-29 02:53:53,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:53:53,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 02:53:53,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:53:53,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 02:53:53,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2023-11-29 02:53:53,450 INFO L87 Difference]: Start difference. First operand 172 states and 204 transitions. Second operand has 14 states, 14 states have (on average 4.714285714285714) internal successors, (66), 13 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:54,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:53:54,336 INFO L93 Difference]: Finished difference Result 582 states and 749 transitions. [2023-11-29 02:53:54,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 02:53:54,337 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.714285714285714) internal successors, (66), 13 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2023-11-29 02:53:54,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:53:54,339 INFO L225 Difference]: With dead ends: 582 [2023-11-29 02:53:54,339 INFO L226 Difference]: Without dead ends: 554 [2023-11-29 02:53:54,340 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=152, Invalid=550, Unknown=0, NotChecked=0, Total=702 [2023-11-29 02:53:54,340 INFO L413 NwaCegarLoop]: 500 mSDtfsCounter, 1681 mSDsluCounter, 3972 mSDsCounter, 0 mSdLazyCounter, 744 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1681 SdHoareTripleChecker+Valid, 4472 SdHoareTripleChecker+Invalid, 747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 744 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 02:53:54,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1681 Valid, 4472 Invalid, 747 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 744 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 02:53:54,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2023-11-29 02:53:54,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 178. [2023-11-29 02:53:54,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 173 states have (on average 1.2196531791907514) internal successors, (211), 177 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:54,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 211 transitions. [2023-11-29 02:53:54,343 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 211 transitions. Word has length 66 [2023-11-29 02:53:54,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:53:54,344 INFO L495 AbstractCegarLoop]: Abstraction has 178 states and 211 transitions. [2023-11-29 02:53:54,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.714285714285714) internal successors, (66), 13 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:54,344 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 211 transitions. [2023-11-29 02:53:54,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-29 02:53:54,344 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:53:54,344 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] [2023-11-29 02:53:54,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-11-29 02:53:54,345 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-29 02:53:54,345 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:53:54,345 INFO L85 PathProgramCache]: Analyzing trace with hash 797286211, now seen corresponding path program 1 times [2023-11-29 02:53:54,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:53:54,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085341757] [2023-11-29 02:53:54,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:53:54,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:53:54,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:53:54,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:53:54,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:53:54,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085341757] [2023-11-29 02:53:54,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085341757] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:53:54,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:53:54,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 02:53:54,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907402650] [2023-11-29 02:53:54,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:53:54,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 02:53:54,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:53:54,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 02:53:54,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-11-29 02:53:54,694 INFO L87 Difference]: Start difference. First operand 178 states and 211 transitions. Second operand has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 11 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:55,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:53:55,154 INFO L93 Difference]: Finished difference Result 448 states and 565 transitions. [2023-11-29 02:53:55,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 02:53:55,155 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 11 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2023-11-29 02:53:55,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:53:55,156 INFO L225 Difference]: With dead ends: 448 [2023-11-29 02:53:55,156 INFO L226 Difference]: Without dead ends: 420 [2023-11-29 02:53:55,157 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=117, Invalid=345, Unknown=0, NotChecked=0, Total=462 [2023-11-29 02:53:55,157 INFO L413 NwaCegarLoop]: 473 mSDtfsCounter, 873 mSDsluCounter, 1613 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 873 SdHoareTripleChecker+Valid, 2086 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:53:55,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [873 Valid, 2086 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 02:53:55,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2023-11-29 02:53:55,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 144. [2023-11-29 02:53:55,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 141 states have (on average 1.2340425531914894) internal successors, (174), 143 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:55,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 174 transitions. [2023-11-29 02:53:55,160 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 174 transitions. Word has length 67 [2023-11-29 02:53:55,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:53:55,160 INFO L495 AbstractCegarLoop]: Abstraction has 144 states and 174 transitions. [2023-11-29 02:53:55,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 11 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:55,161 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 174 transitions. [2023-11-29 02:53:55,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-29 02:53:55,161 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:53:55,161 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] [2023-11-29 02:53:55,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-11-29 02:53:55,161 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-29 02:53:55,162 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:53:55,162 INFO L85 PathProgramCache]: Analyzing trace with hash 207320224, now seen corresponding path program 1 times [2023-11-29 02:53:55,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:53:55,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260047697] [2023-11-29 02:53:55,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:53:55,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:53:55,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:53:55,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:53:55,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:53:55,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260047697] [2023-11-29 02:53:55,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260047697] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:53:55,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:53:55,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-29 02:53:55,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167685182] [2023-11-29 02:53:55,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:53:55,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 02:53:55,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:53:55,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 02:53:55,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-11-29 02:53:55,549 INFO L87 Difference]: Start difference. First operand 144 states and 174 transitions. Second operand has 13 states, 13 states have (on average 5.230769230769231) internal successors, (68), 12 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:56,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:53:56,335 INFO L93 Difference]: Finished difference Result 562 states and 762 transitions. [2023-11-29 02:53:56,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 02:53:56,336 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.230769230769231) internal successors, (68), 12 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2023-11-29 02:53:56,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:53:56,338 INFO L225 Difference]: With dead ends: 562 [2023-11-29 02:53:56,338 INFO L226 Difference]: Without dead ends: 556 [2023-11-29 02:53:56,339 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2023-11-29 02:53:56,339 INFO L413 NwaCegarLoop]: 357 mSDtfsCounter, 1374 mSDsluCounter, 2210 mSDsCounter, 0 mSdLazyCounter, 606 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1374 SdHoareTripleChecker+Valid, 2567 SdHoareTripleChecker+Invalid, 606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 606 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 02:53:56,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1374 Valid, 2567 Invalid, 606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 606 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 02:53:56,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2023-11-29 02:53:56,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 138. [2023-11-29 02:53:56,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 136 states have (on average 1.2352941176470589) internal successors, (168), 137 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:56,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 168 transitions. [2023-11-29 02:53:56,342 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 168 transitions. Word has length 68 [2023-11-29 02:53:56,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:53:56,343 INFO L495 AbstractCegarLoop]: Abstraction has 138 states and 168 transitions. [2023-11-29 02:53:56,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.230769230769231) internal successors, (68), 12 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:56,343 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 168 transitions. [2023-11-29 02:53:56,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-29 02:53:56,343 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:53:56,343 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] [2023-11-29 02:53:56,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-11-29 02:53:56,344 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-29 02:53:56,344 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:53:56,344 INFO L85 PathProgramCache]: Analyzing trace with hash -1386499272, now seen corresponding path program 1 times [2023-11-29 02:53:56,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:53:56,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798327211] [2023-11-29 02:53:56,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:53:56,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:53:56,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:53:57,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:53:57,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:53:57,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798327211] [2023-11-29 02:53:57,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798327211] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:53:57,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:53:57,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2023-11-29 02:53:57,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184045543] [2023-11-29 02:53:57,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:53:57,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-11-29 02:53:57,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:53:57,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-11-29 02:53:57,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=444, Unknown=0, NotChecked=0, Total=506 [2023-11-29 02:53:57,204 INFO L87 Difference]: Start difference. First operand 138 states and 168 transitions. Second operand has 23 states, 23 states have (on average 2.9565217391304346) internal successors, (68), 22 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:59,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:53:59,200 INFO L93 Difference]: Finished difference Result 478 states and 615 transitions. [2023-11-29 02:53:59,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-29 02:53:59,200 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.9565217391304346) internal successors, (68), 22 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2023-11-29 02:53:59,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:53:59,202 INFO L225 Difference]: With dead ends: 478 [2023-11-29 02:53:59,202 INFO L226 Difference]: Without dead ends: 470 [2023-11-29 02:53:59,203 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=281, Invalid=1359, Unknown=0, NotChecked=0, Total=1640 [2023-11-29 02:53:59,203 INFO L413 NwaCegarLoop]: 401 mSDtfsCounter, 1144 mSDsluCounter, 4556 mSDsCounter, 0 mSdLazyCounter, 2284 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1144 SdHoareTripleChecker+Valid, 4957 SdHoareTripleChecker+Invalid, 2284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 02:53:59,204 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1144 Valid, 4957 Invalid, 2284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2284 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 02:53:59,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2023-11-29 02:53:59,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 152. [2023-11-29 02:53:59,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 150 states have (on average 1.2333333333333334) internal successors, (185), 151 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:59,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 185 transitions. [2023-11-29 02:53:59,208 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 185 transitions. Word has length 68 [2023-11-29 02:53:59,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:53:59,208 INFO L495 AbstractCegarLoop]: Abstraction has 152 states and 185 transitions. [2023-11-29 02:53:59,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.9565217391304346) internal successors, (68), 22 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:53:59,209 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 185 transitions. [2023-11-29 02:53:59,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-29 02:53:59,209 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:53:59,209 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] [2023-11-29 02:53:59,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-11-29 02:53:59,209 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-29 02:53:59,210 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:53:59,210 INFO L85 PathProgramCache]: Analyzing trace with hash 1979676551, now seen corresponding path program 1 times [2023-11-29 02:53:59,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:53:59,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847442586] [2023-11-29 02:53:59,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:53:59,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:53:59,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:53:59,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:53:59,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:53:59,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847442586] [2023-11-29 02:53:59,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847442586] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:53:59,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:53:59,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-29 02:53:59,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647860657] [2023-11-29 02:53:59,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:53:59,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 02:53:59,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:53:59,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 02:53:59,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-11-29 02:53:59,660 INFO L87 Difference]: Start difference. First operand 152 states and 185 transitions. Second operand has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 12 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:54:00,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:54:00,463 INFO L93 Difference]: Finished difference Result 462 states and 623 transitions. [2023-11-29 02:54:00,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-29 02:54:00,464 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 12 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2023-11-29 02:54:00,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:54:00,465 INFO L225 Difference]: With dead ends: 462 [2023-11-29 02:54:00,465 INFO L226 Difference]: Without dead ends: 447 [2023-11-29 02:54:00,466 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2023-11-29 02:54:00,466 INFO L413 NwaCegarLoop]: 374 mSDtfsCounter, 823 mSDsluCounter, 2842 mSDsCounter, 0 mSdLazyCounter, 641 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 823 SdHoareTripleChecker+Valid, 3216 SdHoareTripleChecker+Invalid, 641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 02:54:00,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [823 Valid, 3216 Invalid, 641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 641 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 02:54:00,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2023-11-29 02:54:00,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 126. [2023-11-29 02:54:00,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 125 states have (on average 1.24) internal successors, (155), 125 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:54:00,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 155 transitions. [2023-11-29 02:54:00,469 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 155 transitions. Word has length 69 [2023-11-29 02:54:00,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:54:00,469 INFO L495 AbstractCegarLoop]: Abstraction has 126 states and 155 transitions. [2023-11-29 02:54:00,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 12 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:54:00,470 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 155 transitions. [2023-11-29 02:54:00,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-11-29 02:54:00,470 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:54:00,470 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] [2023-11-29 02:54:00,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-11-29 02:54:00,471 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-29 02:54:00,471 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:54:00,471 INFO L85 PathProgramCache]: Analyzing trace with hash -1973108893, now seen corresponding path program 1 times [2023-11-29 02:54:00,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:54:00,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029869062] [2023-11-29 02:54:00,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:54:00,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:54:00,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:54:00,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:54:00,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:54:00,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029869062] [2023-11-29 02:54:00,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029869062] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:54:00,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:54:00,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 02:54:00,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927858654] [2023-11-29 02:54:00,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:54:00,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 02:54:00,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:54:00,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 02:54:00,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 02:54:00,576 INFO L87 Difference]: Start difference. First operand 126 states and 155 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 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) [2023-11-29 02:54:00,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:54:00,661 INFO L93 Difference]: Finished difference Result 550 states and 771 transitions. [2023-11-29 02:54:00,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 02:54:00,662 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 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 [2023-11-29 02:54:00,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:54:00,664 INFO L225 Difference]: With dead ends: 550 [2023-11-29 02:54:00,664 INFO L226 Difference]: Without dead ends: 497 [2023-11-29 02:54:00,665 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-11-29 02:54:00,665 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 871 mSDsluCounter, 786 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 871 SdHoareTripleChecker+Valid, 937 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:54:00,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [871 Valid, 937 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:54:00,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2023-11-29 02:54:00,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 177. [2023-11-29 02:54:00,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 176 states have (on average 1.3068181818181819) internal successors, (230), 176 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:54:00,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 230 transitions. [2023-11-29 02:54:00,671 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 230 transitions. Word has length 91 [2023-11-29 02:54:00,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:54:00,671 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 230 transitions. [2023-11-29 02:54:00,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 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) [2023-11-29 02:54:00,672 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 230 transitions. [2023-11-29 02:54:00,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-29 02:54:00,672 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:54:00,672 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] [2023-11-29 02:54:00,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-11-29 02:54:00,673 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-29 02:54:00,673 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:54:00,673 INFO L85 PathProgramCache]: Analyzing trace with hash -849862238, now seen corresponding path program 1 times [2023-11-29 02:54:00,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:54:00,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087300445] [2023-11-29 02:54:00,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:54:00,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:54:00,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:54:00,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:54:00,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:54:00,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087300445] [2023-11-29 02:54:00,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087300445] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:54:00,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:54:00,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 02:54:00,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664786185] [2023-11-29 02:54:00,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:54:00,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 02:54:00,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:54:00,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 02:54:00,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 02:54:00,793 INFO L87 Difference]: Start difference. First operand 177 states and 230 transitions. Second operand has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:54:00,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:54:00,870 INFO L93 Difference]: Finished difference Result 646 states and 914 transitions. [2023-11-29 02:54:00,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 02:54:00,871 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 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 93 [2023-11-29 02:54:00,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:54:00,874 INFO L225 Difference]: With dead ends: 646 [2023-11-29 02:54:00,874 INFO L226 Difference]: Without dead ends: 542 [2023-11-29 02:54:00,874 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-11-29 02:54:00,875 INFO L413 NwaCegarLoop]: 219 mSDtfsCounter, 626 mSDsluCounter, 446 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 626 SdHoareTripleChecker+Valid, 665 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:54:00,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [626 Valid, 665 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:54:00,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2023-11-29 02:54:00,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 228. [2023-11-29 02:54:00,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 227 states have (on average 1.3436123348017621) internal successors, (305), 227 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:54:00,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 305 transitions. [2023-11-29 02:54:00,881 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 305 transitions. Word has length 93 [2023-11-29 02:54:00,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:54:00,882 INFO L495 AbstractCegarLoop]: Abstraction has 228 states and 305 transitions. [2023-11-29 02:54:00,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:54:00,882 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 305 transitions. [2023-11-29 02:54:00,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-29 02:54:00,883 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:54:00,883 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] [2023-11-29 02:54:00,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-11-29 02:54:00,883 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-29 02:54:00,884 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:54:00,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1784168805, now seen corresponding path program 1 times [2023-11-29 02:54:00,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:54:00,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31186136] [2023-11-29 02:54:00,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:54:00,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:54:00,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:54:01,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:54:01,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:54:01,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31186136] [2023-11-29 02:54:01,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31186136] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:54:01,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:54:01,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 02:54:01,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442028741] [2023-11-29 02:54:01,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:54:01,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 02:54:01,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:54:01,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 02:54:01,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-29 02:54:01,064 INFO L87 Difference]: Start difference. First operand 228 states and 305 transitions. Second operand has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:54:01,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:54:01,132 INFO L93 Difference]: Finished difference Result 436 states and 608 transitions. [2023-11-29 02:54:01,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 02:54:01,133 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 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 93 [2023-11-29 02:54:01,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:54:01,134 INFO L225 Difference]: With dead ends: 436 [2023-11-29 02:54:01,134 INFO L226 Difference]: Without dead ends: 281 [2023-11-29 02:54:01,135 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-11-29 02:54:01,135 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 195 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:54:01,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 370 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:54:01,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2023-11-29 02:54:01,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 279. [2023-11-29 02:54:01,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 278 states have (on average 1.3597122302158273) internal successors, (378), 278 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:54:01,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 378 transitions. [2023-11-29 02:54:01,139 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 378 transitions. Word has length 93 [2023-11-29 02:54:01,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:54:01,139 INFO L495 AbstractCegarLoop]: Abstraction has 279 states and 378 transitions. [2023-11-29 02:54:01,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:54:01,139 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 378 transitions. [2023-11-29 02:54:01,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-29 02:54:01,140 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:54:01,140 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] [2023-11-29 02:54:01,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-11-29 02:54:01,140 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-29 02:54:01,140 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:54:01,140 INFO L85 PathProgramCache]: Analyzing trace with hash 1044428484, now seen corresponding path program 1 times [2023-11-29 02:54:01,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:54:01,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197757489] [2023-11-29 02:54:01,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:54:01,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:54:01,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:54:01,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:54:01,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:54:01,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197757489] [2023-11-29 02:54:01,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197757489] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:54:01,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:54:01,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:54:01,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191043736] [2023-11-29 02:54:01,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:54:01,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:54:01,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:54:01,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:54:01,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:54:01,189 INFO L87 Difference]: Start difference. First operand 279 states and 378 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:54:01,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:54:01,209 INFO L93 Difference]: Finished difference Result 636 states and 897 transitions. [2023-11-29 02:54:01,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:54:01,209 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 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 93 [2023-11-29 02:54:01,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:54:01,211 INFO L225 Difference]: With dead ends: 636 [2023-11-29 02:54:01,211 INFO L226 Difference]: Without dead ends: 430 [2023-11-29 02:54:01,212 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:54:01,212 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 89 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:54:01,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 244 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:54:01,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2023-11-29 02:54:01,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 425. [2023-11-29 02:54:01,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 425 states, 424 states have (on average 1.3797169811320755) internal successors, (585), 424 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:54:01,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 585 transitions. [2023-11-29 02:54:01,217 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 585 transitions. Word has length 93 [2023-11-29 02:54:01,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:54:01,217 INFO L495 AbstractCegarLoop]: Abstraction has 425 states and 585 transitions. [2023-11-29 02:54:01,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:54:01,217 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 585 transitions. [2023-11-29 02:54:01,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-29 02:54:01,218 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:54:01,218 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] [2023-11-29 02:54:01,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-11-29 02:54:01,218 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-29 02:54:01,219 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:54:01,219 INFO L85 PathProgramCache]: Analyzing trace with hash 136983470, now seen corresponding path program 1 times [2023-11-29 02:54:01,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:54:01,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577135149] [2023-11-29 02:54:01,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:54:01,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:54:01,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:54:01,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:54:01,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:54:01,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577135149] [2023-11-29 02:54:01,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577135149] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:54:01,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:54:01,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 02:54:01,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823367461] [2023-11-29 02:54:01,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:54:01,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 02:54:01,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:54:01,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 02:54:01,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 02:54:01,300 INFO L87 Difference]: Start difference. First operand 425 states and 585 transitions. Second operand has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:54:01,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:54:01,365 INFO L93 Difference]: Finished difference Result 1230 states and 1742 transitions. [2023-11-29 02:54:01,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 02:54:01,366 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 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 93 [2023-11-29 02:54:01,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:54:01,371 INFO L225 Difference]: With dead ends: 1230 [2023-11-29 02:54:01,371 INFO L226 Difference]: Without dead ends: 1048 [2023-11-29 02:54:01,371 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-11-29 02:54:01,372 INFO L413 NwaCegarLoop]: 224 mSDtfsCounter, 595 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 595 SdHoareTripleChecker+Valid, 668 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:54:01,372 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [595 Valid, 668 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:54:01,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1048 states. [2023-11-29 02:54:01,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1048 to 680. [2023-11-29 02:54:01,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 680 states, 679 states have (on average 1.402061855670103) internal successors, (952), 679 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:54:01,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 680 states to 680 states and 952 transitions. [2023-11-29 02:54:01,380 INFO L78 Accepts]: Start accepts. Automaton has 680 states and 952 transitions. Word has length 93 [2023-11-29 02:54:01,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:54:01,381 INFO L495 AbstractCegarLoop]: Abstraction has 680 states and 952 transitions. [2023-11-29 02:54:01,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:54:01,381 INFO L276 IsEmpty]: Start isEmpty. Operand 680 states and 952 transitions. [2023-11-29 02:54:01,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-29 02:54:01,382 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:54:01,382 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] [2023-11-29 02:54:01,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-11-29 02:54:01,382 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-29 02:54:01,383 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:54:01,383 INFO L85 PathProgramCache]: Analyzing trace with hash -982436120, now seen corresponding path program 1 times [2023-11-29 02:54:01,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:54:01,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318944657] [2023-11-29 02:54:01,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:54:01,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:54:01,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:54:01,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:54:01,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:54:01,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318944657] [2023-11-29 02:54:01,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318944657] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:54:01,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:54:01,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 02:54:01,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449342239] [2023-11-29 02:54:01,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:54:01,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 02:54:01,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:54:01,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 02:54:01,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 02:54:01,488 INFO L87 Difference]: Start difference. First operand 680 states and 952 transitions. Second operand has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:54:01,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:54:01,554 INFO L93 Difference]: Finished difference Result 1400 states and 1987 transitions. [2023-11-29 02:54:01,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 02:54:01,554 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 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 93 [2023-11-29 02:54:01,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:54:01,560 INFO L225 Difference]: With dead ends: 1400 [2023-11-29 02:54:01,560 INFO L226 Difference]: Without dead ends: 1218 [2023-11-29 02:54:01,560 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-11-29 02:54:01,560 INFO L413 NwaCegarLoop]: 221 mSDtfsCounter, 562 mSDsluCounter, 514 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 562 SdHoareTripleChecker+Valid, 735 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:54:01,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [562 Valid, 735 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:54:01,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1218 states. [2023-11-29 02:54:01,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1218 to 850. [2023-11-29 02:54:01,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 850 states, 849 states have (on average 1.4098939929328622) internal successors, (1197), 849 states have internal predecessors, (1197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:54:01,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 850 states to 850 states and 1197 transitions. [2023-11-29 02:54:01,574 INFO L78 Accepts]: Start accepts. Automaton has 850 states and 1197 transitions. Word has length 93 [2023-11-29 02:54:01,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:54:01,575 INFO L495 AbstractCegarLoop]: Abstraction has 850 states and 1197 transitions. [2023-11-29 02:54:01,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:54:01,575 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states and 1197 transitions. [2023-11-29 02:54:01,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-29 02:54:01,576 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:54:01,576 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] [2023-11-29 02:54:01,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-11-29 02:54:01,576 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-29 02:54:01,577 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:54:01,577 INFO L85 PathProgramCache]: Analyzing trace with hash -584509439, now seen corresponding path program 1 times [2023-11-29 02:54:01,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:54:01,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694030939] [2023-11-29 02:54:01,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:54:01,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:54:01,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:54:01,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:54:01,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:54:01,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694030939] [2023-11-29 02:54:01,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694030939] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:54:01,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:54:01,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:54:01,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629768120] [2023-11-29 02:54:01,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:54:01,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:54:01,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:54:01,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:54:01,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:54:01,644 INFO L87 Difference]: Start difference. First operand 850 states and 1197 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 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) [2023-11-29 02:54:01,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:54:01,662 INFO L93 Difference]: Finished difference Result 2332 states and 3309 transitions. [2023-11-29 02:54:01,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:54:01,662 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 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 [2023-11-29 02:54:01,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:54:01,669 INFO L225 Difference]: With dead ends: 2332 [2023-11-29 02:54:01,670 INFO L226 Difference]: Without dead ends: 1555 [2023-11-29 02:54:01,671 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:54:01,671 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 69 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:54:01,672 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 322 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:54:01,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1555 states. [2023-11-29 02:54:01,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1555 to 1481. [2023-11-29 02:54:01,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1481 states, 1480 states have (on average 1.406081081081081) internal successors, (2081), 1480 states have internal predecessors, (2081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:54:01,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1481 states to 1481 states and 2081 transitions. [2023-11-29 02:54:01,688 INFO L78 Accepts]: Start accepts. Automaton has 1481 states and 2081 transitions. Word has length 94 [2023-11-29 02:54:01,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:54:01,689 INFO L495 AbstractCegarLoop]: Abstraction has 1481 states and 2081 transitions. [2023-11-29 02:54:01,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 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) [2023-11-29 02:54:01,689 INFO L276 IsEmpty]: Start isEmpty. Operand 1481 states and 2081 transitions. [2023-11-29 02:54:01,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-11-29 02:54:01,690 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:54:01,690 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] [2023-11-29 02:54:01,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2023-11-29 02:54:01,690 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-29 02:54:01,690 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:54:01,690 INFO L85 PathProgramCache]: Analyzing trace with hash -1030240199, now seen corresponding path program 1 times [2023-11-29 02:54:01,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:54:01,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319808198] [2023-11-29 02:54:01,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:54:01,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:54:01,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:54:01,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:54:01,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:54:01,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319808198] [2023-11-29 02:54:01,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319808198] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:54:01,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:54:01,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:54:01,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785345110] [2023-11-29 02:54:01,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:54:01,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:54:01,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:54:01,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:54:01,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:54:01,773 INFO L87 Difference]: Start difference. First operand 1481 states and 2081 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:54:01,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:54:01,798 INFO L93 Difference]: Finished difference Result 4153 states and 5835 transitions. [2023-11-29 02:54:01,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:54:01,799 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2023-11-29 02:54:01,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:54:01,808 INFO L225 Difference]: With dead ends: 4153 [2023-11-29 02:54:01,808 INFO L226 Difference]: Without dead ends: 2745 [2023-11-29 02:54:01,810 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:54:01,810 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 62 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:54:01,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 322 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:54:01,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2745 states. [2023-11-29 02:54:01,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2745 to 2599. [2023-11-29 02:54:01,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2599 states, 2598 states have (on average 1.3914549653579678) internal successors, (3615), 2598 states have internal predecessors, (3615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:54:01,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2599 states to 2599 states and 3615 transitions. [2023-11-29 02:54:01,842 INFO L78 Accepts]: Start accepts. Automaton has 2599 states and 3615 transitions. Word has length 95 [2023-11-29 02:54:01,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:54:01,842 INFO L495 AbstractCegarLoop]: Abstraction has 2599 states and 3615 transitions. [2023-11-29 02:54:01,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:54:01,842 INFO L276 IsEmpty]: Start isEmpty. Operand 2599 states and 3615 transitions. [2023-11-29 02:54:01,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-29 02:54:01,843 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:54:01,843 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] [2023-11-29 02:54:01,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2023-11-29 02:54:01,843 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-29 02:54:01,843 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:54:01,843 INFO L85 PathProgramCache]: Analyzing trace with hash -176722336, now seen corresponding path program 1 times [2023-11-29 02:54:01,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:54:01,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013559662] [2023-11-29 02:54:01,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:54:01,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:54:01,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:54:01,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:54:01,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:54:01,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013559662] [2023-11-29 02:54:01,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013559662] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:54:01,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:54:01,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:54:01,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550603615] [2023-11-29 02:54:01,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:54:01,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:54:01,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:54:01,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:54:01,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:54:01,915 INFO L87 Difference]: Start difference. First operand 2599 states and 3615 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 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) [2023-11-29 02:54:01,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:54:01,964 INFO L93 Difference]: Finished difference Result 7363 states and 10185 transitions. [2023-11-29 02:54:01,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:54:01,964 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 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 [2023-11-29 02:54:01,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:54:01,985 INFO L225 Difference]: With dead ends: 7363 [2023-11-29 02:54:01,985 INFO L226 Difference]: Without dead ends: 4837 [2023-11-29 02:54:01,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:54:01,989 INFO L413 NwaCegarLoop]: 184 mSDtfsCounter, 52 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:54:01,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 322 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:54:01,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4837 states. [2023-11-29 02:54:02,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4837 to 4547. [2023-11-29 02:54:02,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4547 states, 4546 states have (on average 1.3671359436867576) internal successors, (6215), 4546 states have internal predecessors, (6215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:54:02,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4547 states to 4547 states and 6215 transitions. [2023-11-29 02:54:02,059 INFO L78 Accepts]: Start accepts. Automaton has 4547 states and 6215 transitions. Word has length 96 [2023-11-29 02:54:02,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:54:02,059 INFO L495 AbstractCegarLoop]: Abstraction has 4547 states and 6215 transitions. [2023-11-29 02:54:02,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 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) [2023-11-29 02:54:02,060 INFO L276 IsEmpty]: Start isEmpty. Operand 4547 states and 6215 transitions. [2023-11-29 02:54:02,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-29 02:54:02,060 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:54:02,060 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, 1] [2023-11-29 02:54:02,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2023-11-29 02:54:02,061 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-29 02:54:02,061 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:54:02,061 INFO L85 PathProgramCache]: Analyzing trace with hash -760726548, now seen corresponding path program 1 times [2023-11-29 02:54:02,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:54:02,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729472695] [2023-11-29 02:54:02,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:54:02,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:54:02,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:54:02,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:54:02,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:54:02,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729472695] [2023-11-29 02:54:02,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729472695] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:54:02,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:54:02,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 02:54:02,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777412223] [2023-11-29 02:54:02,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:54:02,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 02:54:02,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:54:02,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 02:54:02,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 02:54:02,199 INFO L87 Difference]: Start difference. First operand 4547 states and 6215 transitions. Second operand has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:54:02,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:54:02,264 INFO L93 Difference]: Finished difference Result 6831 states and 9268 transitions. [2023-11-29 02:54:02,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 02:54:02,267 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2023-11-29 02:54:02,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:54:02,280 INFO L225 Difference]: With dead ends: 6831 [2023-11-29 02:54:02,280 INFO L226 Difference]: Without dead ends: 6829 [2023-11-29 02:54:02,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-29 02:54:02,282 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 249 mSDsluCounter, 613 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 812 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:54:02,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 812 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:54:02,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6829 states. [2023-11-29 02:54:02,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6829 to 4643. [2023-11-29 02:54:02,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4643 states, 4642 states have (on average 1.350926324859974) internal successors, (6271), 4642 states have internal predecessors, (6271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:54:02,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4643 states to 4643 states and 6271 transitions. [2023-11-29 02:54:02,366 INFO L78 Accepts]: Start accepts. Automaton has 4643 states and 6271 transitions. Word has length 97 [2023-11-29 02:54:02,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:54:02,366 INFO L495 AbstractCegarLoop]: Abstraction has 4643 states and 6271 transitions. [2023-11-29 02:54:02,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:54:02,367 INFO L276 IsEmpty]: Start isEmpty. Operand 4643 states and 6271 transitions. [2023-11-29 02:54:02,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-29 02:54:02,367 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:54:02,368 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, 1] [2023-11-29 02:54:02,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2023-11-29 02:54:02,368 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-29 02:54:02,368 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:54:02,368 INFO L85 PathProgramCache]: Analyzing trace with hash 692891640, now seen corresponding path program 1 times [2023-11-29 02:54:02,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:54:02,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794506714] [2023-11-29 02:54:02,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:54:02,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:54:02,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:54:02,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:54:02,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:54:02,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794506714] [2023-11-29 02:54:02,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794506714] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:54:02,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:54:02,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 02:54:02,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406889096] [2023-11-29 02:54:02,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:54:02,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 02:54:02,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:54:02,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 02:54:02,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 02:54:02,501 INFO L87 Difference]: Start difference. First operand 4643 states and 6271 transitions. Second operand has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:54:02,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:54:02,578 INFO L93 Difference]: Finished difference Result 8891 states and 12083 transitions. [2023-11-29 02:54:02,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 02:54:02,578 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2023-11-29 02:54:02,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:54:02,591 INFO L225 Difference]: With dead ends: 8891 [2023-11-29 02:54:02,592 INFO L226 Difference]: Without dead ends: 7809 [2023-11-29 02:54:02,595 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-11-29 02:54:02,595 INFO L413 NwaCegarLoop]: 218 mSDtfsCounter, 617 mSDsluCounter, 507 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 617 SdHoareTripleChecker+Valid, 725 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:54:02,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [617 Valid, 725 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:54:02,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7809 states. [2023-11-29 02:54:02,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7809 to 5643. [2023-11-29 02:54:02,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5643 states, 5642 states have (on average 1.3511166253101736) internal successors, (7623), 5642 states have internal predecessors, (7623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:54:02,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5643 states to 5643 states and 7623 transitions. [2023-11-29 02:54:02,681 INFO L78 Accepts]: Start accepts. Automaton has 5643 states and 7623 transitions. Word has length 97 [2023-11-29 02:54:02,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:54:02,682 INFO L495 AbstractCegarLoop]: Abstraction has 5643 states and 7623 transitions. [2023-11-29 02:54:02,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:54:02,682 INFO L276 IsEmpty]: Start isEmpty. Operand 5643 states and 7623 transitions. [2023-11-29 02:54:02,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-11-29 02:54:02,683 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:54:02,683 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, 1, 1, 1] [2023-11-29 02:54:02,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2023-11-29 02:54:02,683 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-29 02:54:02,684 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:54:02,684 INFO L85 PathProgramCache]: Analyzing trace with hash -284794694, now seen corresponding path program 1 times [2023-11-29 02:54:02,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:54:02,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732509395] [2023-11-29 02:54:02,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:54:02,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:54:02,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:54:02,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:54:02,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:54:02,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732509395] [2023-11-29 02:54:02,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732509395] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:54:02,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:54:02,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 02:54:02,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996676180] [2023-11-29 02:54:02,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:54:02,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 02:54:02,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:54:02,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 02:54:02,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:54:02,809 INFO L87 Difference]: Start difference. First operand 5643 states and 7623 transitions. Second operand has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 6 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:54:03,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:54:03,058 INFO L93 Difference]: Finished difference Result 13579 states and 18239 transitions. [2023-11-29 02:54:03,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 02:54:03,058 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 6 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2023-11-29 02:54:03,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:54:03,069 INFO L225 Difference]: With dead ends: 13579 [2023-11-29 02:54:03,069 INFO L226 Difference]: Without dead ends: 8009 [2023-11-29 02:54:03,073 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2023-11-29 02:54:03,073 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 999 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 999 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:54:03,074 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [999 Valid, 282 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:54:03,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8009 states. [2023-11-29 02:54:03,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8009 to 5643. [2023-11-29 02:54:03,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5643 states, 5642 states have (on average 1.3355193193902872) internal successors, (7535), 5642 states have internal predecessors, (7535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:54:03,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5643 states to 5643 states and 7535 transitions. [2023-11-29 02:54:03,153 INFO L78 Accepts]: Start accepts. Automaton has 5643 states and 7535 transitions. Word has length 99 [2023-11-29 02:54:03,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:54:03,153 INFO L495 AbstractCegarLoop]: Abstraction has 5643 states and 7535 transitions. [2023-11-29 02:54:03,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 6 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:54:03,153 INFO L276 IsEmpty]: Start isEmpty. Operand 5643 states and 7535 transitions. [2023-11-29 02:54:03,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-11-29 02:54:03,155 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:54:03,155 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:54:03,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2023-11-29 02:54:03,155 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-29 02:54:03,155 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:54:03,156 INFO L85 PathProgramCache]: Analyzing trace with hash -674248002, now seen corresponding path program 1 times [2023-11-29 02:54:03,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:54:03,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243567727] [2023-11-29 02:54:03,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:54:03,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:54:03,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:54:03,250 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:54:03,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:54:03,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243567727] [2023-11-29 02:54:03,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243567727] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:54:03,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:54:03,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:54:03,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598697865] [2023-11-29 02:54:03,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:54:03,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:54:03,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:54:03,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:54:03,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:54:03,252 INFO L87 Difference]: Start difference. First operand 5643 states and 7535 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:54:03,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:54:03,293 INFO L93 Difference]: Finished difference Result 12575 states and 16797 transitions. [2023-11-29 02:54:03,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:54:03,293 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 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 124 [2023-11-29 02:54:03,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:54:03,304 INFO L225 Difference]: With dead ends: 12575 [2023-11-29 02:54:03,304 INFO L226 Difference]: Without dead ends: 7005 [2023-11-29 02:54:03,310 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:54:03,311 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 66 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:54:03,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 288 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:54:03,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7005 states. [2023-11-29 02:54:03,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7005 to 6467. [2023-11-29 02:54:03,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6467 states, 6466 states have (on average 1.3181255799566967) internal successors, (8523), 6466 states have internal predecessors, (8523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:54:03,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6467 states to 6467 states and 8523 transitions. [2023-11-29 02:54:03,425 INFO L78 Accepts]: Start accepts. Automaton has 6467 states and 8523 transitions. Word has length 124 [2023-11-29 02:54:03,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:54:03,425 INFO L495 AbstractCegarLoop]: Abstraction has 6467 states and 8523 transitions. [2023-11-29 02:54:03,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:54:03,425 INFO L276 IsEmpty]: Start isEmpty. Operand 6467 states and 8523 transitions. [2023-11-29 02:54:03,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-11-29 02:54:03,428 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:54:03,428 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:54:03,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2023-11-29 02:54:03,428 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-29 02:54:03,429 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:54:03,429 INFO L85 PathProgramCache]: Analyzing trace with hash -173295176, now seen corresponding path program 1 times [2023-11-29 02:54:03,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:54:03,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471976179] [2023-11-29 02:54:03,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:54:03,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:54:03,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:54:03,486 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 02:54:03,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:54:03,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471976179] [2023-11-29 02:54:03,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471976179] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:54:03,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:54:03,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:54:03,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211507738] [2023-11-29 02:54:03,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:54:03,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:54:03,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:54:03,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:54:03,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:54:03,488 INFO L87 Difference]: Start difference. First operand 6467 states and 8523 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:54:03,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:54:03,526 INFO L93 Difference]: Finished difference Result 12765 states and 16872 transitions. [2023-11-29 02:54:03,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:54:03,527 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 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 124 [2023-11-29 02:54:03,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:54:03,533 INFO L225 Difference]: With dead ends: 12765 [2023-11-29 02:54:03,534 INFO L226 Difference]: Without dead ends: 6275 [2023-11-29 02:54:03,538 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:54:03,539 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 0 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:54:03,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 296 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:54:03,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6275 states. [2023-11-29 02:54:03,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6275 to 6267. [2023-11-29 02:54:03,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6267 states, 6266 states have (on average 1.3129588254069582) internal successors, (8227), 6266 states have internal predecessors, (8227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:54:03,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6267 states to 6267 states and 8227 transitions. [2023-11-29 02:54:03,602 INFO L78 Accepts]: Start accepts. Automaton has 6267 states and 8227 transitions. Word has length 124 [2023-11-29 02:54:03,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:54:03,603 INFO L495 AbstractCegarLoop]: Abstraction has 6267 states and 8227 transitions. [2023-11-29 02:54:03,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:54:03,603 INFO L276 IsEmpty]: Start isEmpty. Operand 6267 states and 8227 transitions. [2023-11-29 02:54:03,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-11-29 02:54:03,605 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:54:03,606 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:54:03,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2023-11-29 02:54:03,606 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-29 02:54:03,606 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:54:03,606 INFO L85 PathProgramCache]: Analyzing trace with hash 181213544, now seen corresponding path program 1 times [2023-11-29 02:54:03,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:54:03,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972537258] [2023-11-29 02:54:03,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:54:03,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:54:03,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:54:03,856 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-29 02:54:03,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:54:03,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972537258] [2023-11-29 02:54:03,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972537258] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:54:03,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:54:03,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 02:54:03,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650278292] [2023-11-29 02:54:03,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:54:03,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 02:54:03,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:54:03,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 02:54:03,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-29 02:54:03,858 INFO L87 Difference]: Start difference. First operand 6267 states and 8227 transitions. Second operand has 8 states, 8 states have (on average 14.625) internal successors, (117), 7 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:54:04,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:54:04,179 INFO L93 Difference]: Finished difference Result 18858 states and 24730 transitions. [2023-11-29 02:54:04,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 02:54:04,180 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.625) internal successors, (117), 7 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2023-11-29 02:54:04,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:54:04,189 INFO L225 Difference]: With dead ends: 18858 [2023-11-29 02:54:04,189 INFO L226 Difference]: Without dead ends: 12658 [2023-11-29 02:54:04,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2023-11-29 02:54:04,195 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 540 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 540 SdHoareTripleChecker+Valid, 458 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:54:04,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [540 Valid, 458 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 02:54:04,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12658 states. [2023-11-29 02:54:04,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12658 to 6267. [2023-11-29 02:54:04,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6267 states, 6266 states have (on average 1.3127992339610597) internal successors, (8226), 6266 states have internal predecessors, (8226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:54:04,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6267 states to 6267 states and 8226 transitions. [2023-11-29 02:54:04,283 INFO L78 Accepts]: Start accepts. Automaton has 6267 states and 8226 transitions. Word has length 125 [2023-11-29 02:54:04,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:54:04,283 INFO L495 AbstractCegarLoop]: Abstraction has 6267 states and 8226 transitions. [2023-11-29 02:54:04,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.625) internal successors, (117), 7 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:54:04,283 INFO L276 IsEmpty]: Start isEmpty. Operand 6267 states and 8226 transitions. [2023-11-29 02:54:04,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-11-29 02:54:04,284 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:54:04,285 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:54:04,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2023-11-29 02:54:04,285 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-29 02:54:04,285 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:54:04,285 INFO L85 PathProgramCache]: Analyzing trace with hash -159510494, now seen corresponding path program 1 times [2023-11-29 02:54:04,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:54:04,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69598773] [2023-11-29 02:54:04,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:54:04,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:54:04,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:54:04,693 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:54:04,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:54:04,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69598773] [2023-11-29 02:54:04,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69598773] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:54:04,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1216769373] [2023-11-29 02:54:04,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:54:04,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:54:04,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1adf5704-1e76-40c6-bbcf-f4cfb2989620/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:54:04,695 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1adf5704-1e76-40c6-bbcf-f4cfb2989620/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:54:04,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1adf5704-1e76-40c6-bbcf-f4cfb2989620/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 02:54:04,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:54:04,861 INFO L262 TraceCheckSpWp]: Trace formula consists of 560 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-29 02:54:04,870 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:54:06,215 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:54:06,215 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:54:07,825 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:54:07,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1216769373] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:54:07,825 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 02:54:07,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 32 [2023-11-29 02:54:07,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854500085] [2023-11-29 02:54:07,826 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 02:54:07,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-11-29 02:54:07,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:54:07,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-11-29 02:54:07,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=948, Unknown=0, NotChecked=0, Total=1056 [2023-11-29 02:54:07,828 INFO L87 Difference]: Start difference. First operand 6267 states and 8226 transitions. Second operand has 33 states, 33 states have (on average 11.06060606060606) internal successors, (365), 32 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:56:17,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:56:17,313 INFO L93 Difference]: Finished difference Result 294708 states and 377932 transitions. [2023-11-29 02:56:17,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 1006 states. [2023-11-29 02:56:17,313 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 11.06060606060606) internal successors, (365), 32 states have internal predecessors, (365), 0 states have call successors, (0), 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 127 [2023-11-29 02:56:17,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:56:17,584 INFO L225 Difference]: With dead ends: 294708 [2023-11-29 02:56:17,584 INFO L226 Difference]: Without dead ends: 288514 [2023-11-29 02:56:17,686 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1268 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 1035 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 497148 ImplicationChecksByTransitivity, 117.2s TimeCoverageRelationStatistics Valid=77484, Invalid=996848, Unknown=0, NotChecked=0, Total=1074332 [2023-11-29 02:56:17,686 INFO L413 NwaCegarLoop]: 460 mSDtfsCounter, 10580 mSDsluCounter, 6786 mSDsCounter, 0 mSdLazyCounter, 10150 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10580 SdHoareTripleChecker+Valid, 7246 SdHoareTripleChecker+Invalid, 10256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 10150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2023-11-29 02:56:17,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10580 Valid, 7246 Invalid, 10256 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [106 Valid, 10150 Invalid, 0 Unknown, 0 Unchecked, 8.9s Time] [2023-11-29 02:56:17,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288514 states. [2023-11-29 02:56:19,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288514 to 36707. [2023-11-29 02:56:19,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36707 states, 36706 states have (on average 1.3095951615539694) internal successors, (48070), 36706 states have internal predecessors, (48070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:56:19,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36707 states to 36707 states and 48070 transitions. [2023-11-29 02:56:19,324 INFO L78 Accepts]: Start accepts. Automaton has 36707 states and 48070 transitions. Word has length 127 [2023-11-29 02:56:19,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:56:19,324 INFO L495 AbstractCegarLoop]: Abstraction has 36707 states and 48070 transitions. [2023-11-29 02:56:19,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 11.06060606060606) internal successors, (365), 32 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:56:19,325 INFO L276 IsEmpty]: Start isEmpty. Operand 36707 states and 48070 transitions. [2023-11-29 02:56:19,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-11-29 02:56:19,330 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:56:19,330 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:56:19,336 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1adf5704-1e76-40c6-bbcf-f4cfb2989620/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 02:56:19,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1adf5704-1e76-40c6-bbcf-f4cfb2989620/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2023-11-29 02:56:19,531 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-29 02:56:19,532 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:56:19,532 INFO L85 PathProgramCache]: Analyzing trace with hash 943444538, now seen corresponding path program 1 times [2023-11-29 02:56:19,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:56:19,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782664378] [2023-11-29 02:56:19,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:56:19,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:56:19,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:56:19,904 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:56:19,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:56:19,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782664378] [2023-11-29 02:56:19,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782664378] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:56:19,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1169466166] [2023-11-29 02:56:19,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:56:19,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:56:19,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1adf5704-1e76-40c6-bbcf-f4cfb2989620/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:56:19,906 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1adf5704-1e76-40c6-bbcf-f4cfb2989620/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:56:19,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1adf5704-1e76-40c6-bbcf-f4cfb2989620/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 02:56:20,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:56:20,060 INFO L262 TraceCheckSpWp]: Trace formula consists of 560 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-29 02:56:20,065 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:56:20,998 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:56:20,999 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:56:22,095 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:56:22,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1169466166] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:56:22,096 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 02:56:22,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 25 [2023-11-29 02:56:22,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857805305] [2023-11-29 02:56:22,096 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 02:56:22,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-29 02:56:22,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:56:22,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-29 02:56:22,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=546, Unknown=0, NotChecked=0, Total=650 [2023-11-29 02:56:22,098 INFO L87 Difference]: Start difference. First operand 36707 states and 48070 transitions. Second operand has 26 states, 26 states have (on average 11.846153846153847) internal successors, (308), 25 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:56:24,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:56:24,837 INFO L93 Difference]: Finished difference Result 243752 states and 317893 transitions. [2023-11-29 02:56:24,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-11-29 02:56:24,837 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 11.846153846153847) internal successors, (308), 25 states have internal predecessors, (308), 0 states have call successors, (0), 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 127 [2023-11-29 02:56:24,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:56:25,038 INFO L225 Difference]: With dead ends: 243752 [2023-11-29 02:56:25,038 INFO L226 Difference]: Without dead ends: 207163 [2023-11-29 02:56:25,071 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 883 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=955, Invalid=3077, Unknown=0, NotChecked=0, Total=4032 [2023-11-29 02:56:25,072 INFO L413 NwaCegarLoop]: 197 mSDtfsCounter, 3442 mSDsluCounter, 1400 mSDsCounter, 0 mSdLazyCounter, 1376 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3442 SdHoareTripleChecker+Valid, 1597 SdHoareTripleChecker+Invalid, 1391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 02:56:25,072 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3442 Valid, 1597 Invalid, 1391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1376 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 02:56:25,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207163 states. [2023-11-29 02:56:26,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207163 to 86588. [2023-11-29 02:56:26,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86588 states, 86587 states have (on average 1.303602157367734) internal successors, (112875), 86587 states have internal predecessors, (112875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:56:26,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86588 states to 86588 states and 112875 transitions. [2023-11-29 02:56:26,526 INFO L78 Accepts]: Start accepts. Automaton has 86588 states and 112875 transitions. Word has length 127 [2023-11-29 02:56:26,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:56:26,526 INFO L495 AbstractCegarLoop]: Abstraction has 86588 states and 112875 transitions. [2023-11-29 02:56:26,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 11.846153846153847) internal successors, (308), 25 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:56:26,526 INFO L276 IsEmpty]: Start isEmpty. Operand 86588 states and 112875 transitions. [2023-11-29 02:56:26,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-11-29 02:56:26,538 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:56:26,539 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:56:26,543 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1adf5704-1e76-40c6-bbcf-f4cfb2989620/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 02:56:26,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1adf5704-1e76-40c6-bbcf-f4cfb2989620/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2023-11-29 02:56:26,739 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-29 02:56:26,741 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:56:26,741 INFO L85 PathProgramCache]: Analyzing trace with hash -1741523008, now seen corresponding path program 2 times [2023-11-29 02:56:26,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:56:26,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639259076] [2023-11-29 02:56:26,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:56:26,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:56:26,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:56:26,932 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 02:56:26,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:56:26,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639259076] [2023-11-29 02:56:26,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639259076] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:56:26,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:56:26,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:56:26,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673948212] [2023-11-29 02:56:26,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:56:26,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:56:26,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:56:26,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:56:26,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:56:26,934 INFO L87 Difference]: Start difference. First operand 86588 states and 112875 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:56:27,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:56:27,281 INFO L93 Difference]: Finished difference Result 172990 states and 225548 transitions. [2023-11-29 02:56:27,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:56:27,281 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 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 127 [2023-11-29 02:56:27,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:56:27,350 INFO L225 Difference]: With dead ends: 172990 [2023-11-29 02:56:27,351 INFO L226 Difference]: Without dead ends: 86590 [2023-11-29 02:56:27,378 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:56:27,378 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 69 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:56:27,378 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 293 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:56:27,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86590 states. [2023-11-29 02:56:28,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86590 to 86588. [2023-11-29 02:56:28,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86588 states, 86587 states have (on average 1.2922378648064952) internal successors, (111891), 86587 states have internal predecessors, (111891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:56:28,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86588 states to 86588 states and 111891 transitions. [2023-11-29 02:56:28,357 INFO L78 Accepts]: Start accepts. Automaton has 86588 states and 111891 transitions. Word has length 127 [2023-11-29 02:56:28,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:56:28,357 INFO L495 AbstractCegarLoop]: Abstraction has 86588 states and 111891 transitions. [2023-11-29 02:56:28,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:56:28,358 INFO L276 IsEmpty]: Start isEmpty. Operand 86588 states and 111891 transitions. [2023-11-29 02:56:28,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-11-29 02:56:28,487 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:56:28,487 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:56:28,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2023-11-29 02:56:28,488 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-29 02:56:28,488 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:56:28,488 INFO L85 PathProgramCache]: Analyzing trace with hash -1332129653, now seen corresponding path program 1 times [2023-11-29 02:56:28,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:56:28,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70690805] [2023-11-29 02:56:28,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:56:28,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:56:28,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:56:29,052 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:56:29,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:56:29,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70690805] [2023-11-29 02:56:29,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70690805] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:56:29,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1743337548] [2023-11-29 02:56:29,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:56:29,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:56:29,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1adf5704-1e76-40c6-bbcf-f4cfb2989620/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:56:29,053 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1adf5704-1e76-40c6-bbcf-f4cfb2989620/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:56:29,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1adf5704-1e76-40c6-bbcf-f4cfb2989620/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 02:56:29,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:56:29,185 INFO L262 TraceCheckSpWp]: Trace formula consists of 559 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 02:56:29,191 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:56:29,896 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:56:29,896 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:56:30,814 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:56:30,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1743337548] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:56:30,815 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 02:56:30,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11, 11] total 33 [2023-11-29 02:56:30,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120840523] [2023-11-29 02:56:30,815 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 02:56:30,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-11-29 02:56:30,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:56:30,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-11-29 02:56:30,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=1005, Unknown=0, NotChecked=0, Total=1122 [2023-11-29 02:56:30,817 INFO L87 Difference]: Start difference. First operand 86588 states and 111891 transitions. Second operand has 34 states, 34 states have (on average 10.117647058823529) internal successors, (344), 33 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)