./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5664fc75-c3d1-453b-b0dc-95b31eb6d0e3/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5664fc75-c3d1-453b-b0dc-95b31eb6d0e3/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5664fc75-c3d1-453b-b0dc-95b31eb6d0e3/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5664fc75-c3d1-453b-b0dc-95b31eb6d0e3/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5664fc75-c3d1-453b-b0dc-95b31eb6d0e3/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5664fc75-c3d1-453b-b0dc-95b31eb6d0e3/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 c9fed3b6ecd1551705440e8c2971862b3f83812db515b8181a20d7126e9055f8 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:54:28,758 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:54:28,885 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5664fc75-c3d1-453b-b0dc-95b31eb6d0e3/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-06 22:54:28,889 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:54:28,890 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:54:28,913 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:54:28,914 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:54:28,915 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:54:28,916 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:54:28,916 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:54:28,917 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:54:28,918 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:54:28,918 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:54:28,919 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:54:28,920 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:54:28,920 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:54:28,921 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:54:28,921 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:54:28,922 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:54:28,922 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:54:28,923 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:54:28,923 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:54:28,924 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:54:28,924 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:54:28,925 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:54:28,925 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:54:28,926 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:54:28,926 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:54:28,926 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:54:28,927 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:54:28,927 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:54:28,928 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:54:28,928 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:54:28,928 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:54:28,928 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:54:28,929 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:54:28,929 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:54:28,929 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:54:28,929 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:54:28,930 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_5664fc75-c3d1-453b-b0dc-95b31eb6d0e3/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5664fc75-c3d1-453b-b0dc-95b31eb6d0e3/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c9fed3b6ecd1551705440e8c2971862b3f83812db515b8181a20d7126e9055f8 [2023-11-06 22:54:29,236 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:54:29,265 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:54:29,268 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:54:29,269 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:54:29,270 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:54:29,271 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5664fc75-c3d1-453b-b0dc-95b31eb6d0e3/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2023-11-06 22:54:32,249 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:54:32,783 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:54:32,784 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5664fc75-c3d1-453b-b0dc-95b31eb6d0e3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2023-11-06 22:54:32,822 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5664fc75-c3d1-453b-b0dc-95b31eb6d0e3/bin/uautomizer-verify-WvqO1wxjHP/data/929d1a6c5/b6c58fae55c64bc5ba968f3919e43df6/FLAG424a80846 [2023-11-06 22:54:32,844 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5664fc75-c3d1-453b-b0dc-95b31eb6d0e3/bin/uautomizer-verify-WvqO1wxjHP/data/929d1a6c5/b6c58fae55c64bc5ba968f3919e43df6 [2023-11-06 22:54:32,850 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:54:32,852 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:54:32,857 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:54:32,857 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:54:32,863 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:54:32,866 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:54:32" (1/1) ... [2023-11-06 22:54:32,867 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f8bda41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:32, skipping insertion in model container [2023-11-06 22:54:32,868 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:54:32" (1/1) ... [2023-11-06 22:54:33,020 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:54:33,468 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_5664fc75-c3d1-453b-b0dc-95b31eb6d0e3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[7186,7199] [2023-11-06 22:54:33,509 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_5664fc75-c3d1-453b-b0dc-95b31eb6d0e3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[11327,11340] [2023-11-06 22:54:33,547 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_5664fc75-c3d1-453b-b0dc-95b31eb6d0e3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[18377,18390] [2023-11-06 22:54:33,578 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_5664fc75-c3d1-453b-b0dc-95b31eb6d0e3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[24849,24862] [2023-11-06 22:54:33,655 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_5664fc75-c3d1-453b-b0dc-95b31eb6d0e3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[43924,43937] [2023-11-06 22:54:33,816 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5664fc75-c3d1-453b-b0dc-95b31eb6d0e3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[71846,71859] [2023-11-06 22:54:34,037 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:54:34,054 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:54:34,102 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5664fc75-c3d1-453b-b0dc-95b31eb6d0e3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[7186,7199] [2023-11-06 22:54:34,124 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_5664fc75-c3d1-453b-b0dc-95b31eb6d0e3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[11327,11340] [2023-11-06 22:54:34,161 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_5664fc75-c3d1-453b-b0dc-95b31eb6d0e3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[18377,18390] [2023-11-06 22:54:34,179 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_5664fc75-c3d1-453b-b0dc-95b31eb6d0e3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[24849,24862] [2023-11-06 22:54:34,228 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_5664fc75-c3d1-453b-b0dc-95b31eb6d0e3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[43924,43937] [2023-11-06 22:54:34,283 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_5664fc75-c3d1-453b-b0dc-95b31eb6d0e3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[71846,71859] [2023-11-06 22:54:34,407 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:54:34,434 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:54:34,434 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:34 WrapperNode [2023-11-06 22:54:34,435 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:54:34,436 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:54:34,436 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:54:34,437 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:54:34,445 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:34" (1/1) ... [2023-11-06 22:54:34,512 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:34" (1/1) ... [2023-11-06 22:54:34,772 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 6055 [2023-11-06 22:54:34,772 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:54:34,773 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:54:34,773 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:54:34,774 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:54:34,784 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:34" (1/1) ... [2023-11-06 22:54:34,784 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:34" (1/1) ... [2023-11-06 22:54:34,805 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:34" (1/1) ... [2023-11-06 22:54:34,806 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:34" (1/1) ... [2023-11-06 22:54:34,868 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:34" (1/1) ... [2023-11-06 22:54:34,902 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:34" (1/1) ... [2023-11-06 22:54:34,913 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:34" (1/1) ... [2023-11-06 22:54:34,933 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:34" (1/1) ... [2023-11-06 22:54:34,973 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:54:34,977 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:54:34,977 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:54:34,977 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:54:34,978 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:34" (1/1) ... [2023-11-06 22:54:34,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:54:35,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5664fc75-c3d1-453b-b0dc-95b31eb6d0e3/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:54:35,017 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5664fc75-c3d1-453b-b0dc-95b31eb6d0e3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:54:35,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5664fc75-c3d1-453b-b0dc-95b31eb6d0e3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:54:35,056 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:54:35,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:54:35,057 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:54:35,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:54:35,315 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:54:35,320 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:54:38,398 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:54:38,422 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:54:38,422 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-06 22:54:38,426 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:54:38 BoogieIcfgContainer [2023-11-06 22:54:38,427 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:54:38,429 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:54:38,429 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:54:38,433 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:54:38,433 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:54:32" (1/3) ... [2023-11-06 22:54:38,434 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f36f25a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:54:38, skipping insertion in model container [2023-11-06 22:54:38,434 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:34" (2/3) ... [2023-11-06 22:54:38,435 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f36f25a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:54:38, skipping insertion in model container [2023-11-06 22:54:38,435 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:54:38" (3/3) ... [2023-11-06 22:54:38,436 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2023-11-06 22:54:38,457 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:54:38,458 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-06 22:54:38,551 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:54:38,558 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=LoopsAndPotentialCycles, 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;@5e34792c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:54:38,559 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-11-06 22:54:38,569 INFO L276 IsEmpty]: Start isEmpty. Operand has 1254 states, 1247 states have (on average 1.8043303929430634) internal successors, (2250), 1253 states have internal predecessors, (2250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:38,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-06 22:54:38,595 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:54:38,596 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] [2023-11-06 22:54:38,597 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-11-06 22:54:38,602 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:38,603 INFO L85 PathProgramCache]: Analyzing trace with hash -1061871762, now seen corresponding path program 1 times [2023-11-06 22:54:38,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:54:38,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5419433] [2023-11-06 22:54:38,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:38,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:54:38,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:39,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:54:39,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:54:39,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5419433] [2023-11-06 22:54:39,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5419433] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:54:39,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:54:39,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:54:39,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039964672] [2023-11-06 22:54:39,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:54:39,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:54:39,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:54:39,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:54:39,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:54:39,362 INFO L87 Difference]: Start difference. First operand has 1254 states, 1247 states have (on average 1.8043303929430634) internal successors, (2250), 1253 states have internal predecessors, (2250), 0 states have call successors, (0), 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 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:41,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:54:41,455 INFO L93 Difference]: Finished difference Result 2475 states and 4331 transitions. [2023-11-06 22:54:41,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:54:41,458 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2023-11-06 22:54:41,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:54:41,490 INFO L225 Difference]: With dead ends: 2475 [2023-11-06 22:54:41,490 INFO L226 Difference]: Without dead ends: 1558 [2023-11-06 22:54:41,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:54:41,514 INFO L413 NwaCegarLoop]: 1013 mSDtfsCounter, 7059 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 1269 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7059 SdHoareTripleChecker+Valid, 1499 SdHoareTripleChecker+Invalid, 1337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 1269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-06 22:54:41,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7059 Valid, 1499 Invalid, 1337 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [68 Valid, 1269 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-06 22:54:41,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1558 states. [2023-11-06 22:54:41,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1558 to 1552. [2023-11-06 22:54:41,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1552 states, 1546 states have (on average 1.3544631306597672) internal successors, (2094), 1551 states have internal predecessors, (2094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:41,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1552 states to 1552 states and 2094 transitions. [2023-11-06 22:54:41,711 INFO L78 Accepts]: Start accepts. Automaton has 1552 states and 2094 transitions. Word has length 51 [2023-11-06 22:54:41,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:54:41,712 INFO L495 AbstractCegarLoop]: Abstraction has 1552 states and 2094 transitions. [2023-11-06 22:54:41,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:41,713 INFO L276 IsEmpty]: Start isEmpty. Operand 1552 states and 2094 transitions. [2023-11-06 22:54:41,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-06 22:54:41,717 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:54:41,717 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] [2023-11-06 22:54:41,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:54:41,718 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-11-06 22:54:41,719 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:41,719 INFO L85 PathProgramCache]: Analyzing trace with hash -1625759521, now seen corresponding path program 1 times [2023-11-06 22:54:41,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:54:41,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535425007] [2023-11-06 22:54:41,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:41,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:54:41,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:42,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:54:42,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:54:42,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535425007] [2023-11-06 22:54:42,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535425007] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:54:42,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:54:42,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:54:42,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708881340] [2023-11-06 22:54:42,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:54:42,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:54:42,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:54:42,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:54:42,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:54:42,093 INFO L87 Difference]: Start difference. First operand 1552 states and 2094 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:43,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:54:43,409 INFO L93 Difference]: Finished difference Result 3181 states and 4350 transitions. [2023-11-06 22:54:43,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:54:43,409 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 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 52 [2023-11-06 22:54:43,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:54:43,422 INFO L225 Difference]: With dead ends: 3181 [2023-11-06 22:54:43,423 INFO L226 Difference]: Without dead ends: 2197 [2023-11-06 22:54:43,425 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:54:43,426 INFO L413 NwaCegarLoop]: 675 mSDtfsCounter, 5058 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 913 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5058 SdHoareTripleChecker+Valid, 1030 SdHoareTripleChecker+Invalid, 943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 913 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:54:43,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5058 Valid, 1030 Invalid, 943 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 913 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-06 22:54:43,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2197 states. [2023-11-06 22:54:43,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2197 to 2185. [2023-11-06 22:54:43,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2185 states, 2179 states have (on average 1.3740247820100964) internal successors, (2994), 2184 states have internal predecessors, (2994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:43,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2185 states to 2185 states and 2994 transitions. [2023-11-06 22:54:43,639 INFO L78 Accepts]: Start accepts. Automaton has 2185 states and 2994 transitions. Word has length 52 [2023-11-06 22:54:43,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:54:43,640 INFO L495 AbstractCegarLoop]: Abstraction has 2185 states and 2994 transitions. [2023-11-06 22:54:43,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:43,641 INFO L276 IsEmpty]: Start isEmpty. Operand 2185 states and 2994 transitions. [2023-11-06 22:54:43,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-06 22:54:43,647 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:54:43,647 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] [2023-11-06 22:54:43,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:54:43,648 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-11-06 22:54:43,649 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:43,649 INFO L85 PathProgramCache]: Analyzing trace with hash 299183278, now seen corresponding path program 1 times [2023-11-06 22:54:43,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:54:43,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392114320] [2023-11-06 22:54:43,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:43,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:54:43,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:43,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:54:43,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:54:43,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392114320] [2023-11-06 22:54:43,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392114320] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:54:43,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:54:43,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:54:43,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164530489] [2023-11-06 22:54:43,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:54:43,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:54:43,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:54:43,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:54:43,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:54:43,894 INFO L87 Difference]: Start difference. First operand 2185 states and 2994 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:45,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:54:45,256 INFO L93 Difference]: Finished difference Result 4530 states and 6290 transitions. [2023-11-06 22:54:45,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:54:45,257 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 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 52 [2023-11-06 22:54:45,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:54:45,274 INFO L225 Difference]: With dead ends: 4530 [2023-11-06 22:54:45,275 INFO L226 Difference]: Without dead ends: 3051 [2023-11-06 22:54:45,278 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:54:45,279 INFO L413 NwaCegarLoop]: 595 mSDtfsCounter, 4477 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 837 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4477 SdHoareTripleChecker+Valid, 884 SdHoareTripleChecker+Invalid, 877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 837 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:54:45,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4477 Valid, 884 Invalid, 877 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [40 Valid, 837 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-06 22:54:45,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3051 states. [2023-11-06 22:54:45,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3051 to 3041. [2023-11-06 22:54:45,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3041 states, 3035 states have (on average 1.3759472817133442) internal successors, (4176), 3040 states have internal predecessors, (4176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:45,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3041 states to 3041 states and 4176 transitions. [2023-11-06 22:54:45,524 INFO L78 Accepts]: Start accepts. Automaton has 3041 states and 4176 transitions. Word has length 52 [2023-11-06 22:54:45,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:54:45,525 INFO L495 AbstractCegarLoop]: Abstraction has 3041 states and 4176 transitions. [2023-11-06 22:54:45,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:45,527 INFO L276 IsEmpty]: Start isEmpty. Operand 3041 states and 4176 transitions. [2023-11-06 22:54:45,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-06 22:54:45,530 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:54:45,530 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] [2023-11-06 22:54:45,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:54:45,531 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-11-06 22:54:45,532 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:45,532 INFO L85 PathProgramCache]: Analyzing trace with hash 448762372, now seen corresponding path program 1 times [2023-11-06 22:54:45,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:54:45,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220362070] [2023-11-06 22:54:45,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:45,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:54:45,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:46,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:54:46,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:54:46,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220362070] [2023-11-06 22:54:46,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220362070] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:54:46,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:54:46,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-06 22:54:46,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842381249] [2023-11-06 22:54:46,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:54:46,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 22:54:46,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:54:46,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 22:54:46,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:54:46,051 INFO L87 Difference]: Start difference. First operand 3041 states and 4176 transitions. Second operand has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 8 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:49,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:54:49,779 INFO L93 Difference]: Finished difference Result 6107 states and 8640 transitions. [2023-11-06 22:54:49,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-06 22:54:49,780 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 8 states have internal predecessors, (53), 0 states have call successors, (0), 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 53 [2023-11-06 22:54:49,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:54:49,810 INFO L225 Difference]: With dead ends: 6107 [2023-11-06 22:54:49,810 INFO L226 Difference]: Without dead ends: 5550 [2023-11-06 22:54:49,812 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2023-11-06 22:54:49,814 INFO L413 NwaCegarLoop]: 695 mSDtfsCounter, 5898 mSDsluCounter, 3107 mSDsCounter, 0 mSdLazyCounter, 4097 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5898 SdHoareTripleChecker+Valid, 3802 SdHoareTripleChecker+Invalid, 4158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 4097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-11-06 22:54:49,814 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5898 Valid, 3802 Invalid, 4158 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [61 Valid, 4097 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-11-06 22:54:49,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5550 states. [2023-11-06 22:54:50,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5550 to 3041. [2023-11-06 22:54:50,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3041 states, 3035 states have (on average 1.3756177924217463) internal successors, (4175), 3040 states have internal predecessors, (4175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:50,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3041 states to 3041 states and 4175 transitions. [2023-11-06 22:54:50,184 INFO L78 Accepts]: Start accepts. Automaton has 3041 states and 4175 transitions. Word has length 53 [2023-11-06 22:54:50,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:54:50,185 INFO L495 AbstractCegarLoop]: Abstraction has 3041 states and 4175 transitions. [2023-11-06 22:54:50,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 8 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:50,186 INFO L276 IsEmpty]: Start isEmpty. Operand 3041 states and 4175 transitions. [2023-11-06 22:54:50,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-06 22:54:50,189 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:54:50,189 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] [2023-11-06 22:54:50,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 22:54:50,190 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-11-06 22:54:50,190 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:50,190 INFO L85 PathProgramCache]: Analyzing trace with hash 303472925, now seen corresponding path program 1 times [2023-11-06 22:54:50,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:54:50,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979688420] [2023-11-06 22:54:50,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:50,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:54:50,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:50,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:54:50,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:54:50,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979688420] [2023-11-06 22:54:50,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979688420] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:54:50,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:54:50,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-06 22:54:50,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731617482] [2023-11-06 22:54:50,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:54:50,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 22:54:50,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:54:50,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 22:54:50,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:54:50,534 INFO L87 Difference]: Start difference. First operand 3041 states and 4175 transitions. Second operand has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 8 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:53,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:54:53,399 INFO L93 Difference]: Finished difference Result 4569 states and 6366 transitions. [2023-11-06 22:54:53,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-06 22:54:53,399 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 8 states have internal predecessors, (53), 0 states have call successors, (0), 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 53 [2023-11-06 22:54:53,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:54:53,425 INFO L225 Difference]: With dead ends: 4569 [2023-11-06 22:54:53,425 INFO L226 Difference]: Without dead ends: 4564 [2023-11-06 22:54:53,427 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2023-11-06 22:54:53,428 INFO L413 NwaCegarLoop]: 660 mSDtfsCounter, 6529 mSDsluCounter, 2174 mSDsCounter, 0 mSdLazyCounter, 2815 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6529 SdHoareTripleChecker+Valid, 2834 SdHoareTripleChecker+Invalid, 2857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 2815 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:54:53,429 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6529 Valid, 2834 Invalid, 2857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 2815 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-06 22:54:53,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4564 states. [2023-11-06 22:54:53,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4564 to 3041. [2023-11-06 22:54:53,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3041 states, 3035 states have (on average 1.3752883031301482) internal successors, (4174), 3040 states have internal predecessors, (4174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:53,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3041 states to 3041 states and 4174 transitions. [2023-11-06 22:54:53,947 INFO L78 Accepts]: Start accepts. Automaton has 3041 states and 4174 transitions. Word has length 53 [2023-11-06 22:54:53,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:54:53,950 INFO L495 AbstractCegarLoop]: Abstraction has 3041 states and 4174 transitions. [2023-11-06 22:54:53,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 8 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:53,950 INFO L276 IsEmpty]: Start isEmpty. Operand 3041 states and 4174 transitions. [2023-11-06 22:54:53,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-06 22:54:53,954 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:54:53,954 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] [2023-11-06 22:54:53,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 22:54:53,954 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-11-06 22:54:53,955 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:53,955 INFO L85 PathProgramCache]: Analyzing trace with hash -1162103691, now seen corresponding path program 1 times [2023-11-06 22:54:53,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:54:53,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931957145] [2023-11-06 22:54:53,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:53,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:54:54,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:54,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:54:54,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:54:54,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931957145] [2023-11-06 22:54:54,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931957145] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:54:54,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:54:54,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 22:54:54,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075190174] [2023-11-06 22:54:54,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:54:54,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 22:54:54,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:54:54,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 22:54:54,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:54:54,293 INFO L87 Difference]: Start difference. First operand 3041 states and 4174 transitions. Second operand has 8 states, 8 states have (on average 6.625) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:56,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:54:56,723 INFO L93 Difference]: Finished difference Result 5101 states and 7239 transitions. [2023-11-06 22:54:56,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-06 22:54:56,724 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 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 53 [2023-11-06 22:54:56,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:54:56,750 INFO L225 Difference]: With dead ends: 5101 [2023-11-06 22:54:56,751 INFO L226 Difference]: Without dead ends: 4430 [2023-11-06 22:54:56,753 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2023-11-06 22:54:56,755 INFO L413 NwaCegarLoop]: 656 mSDtfsCounter, 6928 mSDsluCounter, 1542 mSDsCounter, 0 mSdLazyCounter, 1963 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6928 SdHoareTripleChecker+Valid, 2198 SdHoareTripleChecker+Invalid, 1973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1963 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-06 22:54:56,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6928 Valid, 2198 Invalid, 1973 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1963 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-06 22:54:56,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4430 states. [2023-11-06 22:54:57,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4430 to 3041. [2023-11-06 22:54:57,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3041 states, 3035 states have (on average 1.3749588138385502) internal successors, (4173), 3040 states have internal predecessors, (4173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:57,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3041 states to 3041 states and 4173 transitions. [2023-11-06 22:54:57,230 INFO L78 Accepts]: Start accepts. Automaton has 3041 states and 4173 transitions. Word has length 53 [2023-11-06 22:54:57,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:54:57,230 INFO L495 AbstractCegarLoop]: Abstraction has 3041 states and 4173 transitions. [2023-11-06 22:54:57,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:57,231 INFO L276 IsEmpty]: Start isEmpty. Operand 3041 states and 4173 transitions. [2023-11-06 22:54:57,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-06 22:54:57,234 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:54:57,234 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] [2023-11-06 22:54:57,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-06 22:54:57,235 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-11-06 22:54:57,235 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:57,235 INFO L85 PathProgramCache]: Analyzing trace with hash -482264145, now seen corresponding path program 1 times [2023-11-06 22:54:57,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:54:57,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164970708] [2023-11-06 22:54:57,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:57,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:54:57,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:57,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:54:57,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:54:57,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164970708] [2023-11-06 22:54:57,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164970708] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:54:57,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:54:57,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:54:57,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780787461] [2023-11-06 22:54:57,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:54:57,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:54:57,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:54:57,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:54:57,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:54:57,311 INFO L87 Difference]: Start difference. First operand 3041 states and 4173 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:58,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:54:58,070 INFO L93 Difference]: Finished difference Result 3997 states and 5638 transitions. [2023-11-06 22:54:58,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:54:58,070 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 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 54 [2023-11-06 22:54:58,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:54:58,089 INFO L225 Difference]: With dead ends: 3997 [2023-11-06 22:54:58,089 INFO L226 Difference]: Without dead ends: 3094 [2023-11-06 22:54:58,091 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 [2023-11-06 22:54:58,092 INFO L413 NwaCegarLoop]: 1186 mSDtfsCounter, 579 mSDsluCounter, 599 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 579 SdHoareTripleChecker+Valid, 1785 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:54:58,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [579 Valid, 1785 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:54:58,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3094 states. [2023-11-06 22:54:58,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3094 to 3092. [2023-11-06 22:54:58,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3092 states, 3086 states have (on average 1.3833441348023332) internal successors, (4269), 3091 states have internal predecessors, (4269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:58,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3092 states to 3092 states and 4269 transitions. [2023-11-06 22:54:58,556 INFO L78 Accepts]: Start accepts. Automaton has 3092 states and 4269 transitions. Word has length 54 [2023-11-06 22:54:58,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:54:58,557 INFO L495 AbstractCegarLoop]: Abstraction has 3092 states and 4269 transitions. [2023-11-06 22:54:58,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:58,557 INFO L276 IsEmpty]: Start isEmpty. Operand 3092 states and 4269 transitions. [2023-11-06 22:54:58,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-06 22:54:58,560 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:54:58,560 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] [2023-11-06 22:54:58,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-06 22:54:58,561 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-11-06 22:54:58,561 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:58,561 INFO L85 PathProgramCache]: Analyzing trace with hash 1622556323, now seen corresponding path program 1 times [2023-11-06 22:54:58,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:54:58,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069174941] [2023-11-06 22:54:58,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:58,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:54:58,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:58,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:54:58,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:54:58,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069174941] [2023-11-06 22:54:58,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069174941] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:54:58,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:54:58,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:54:58,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608880804] [2023-11-06 22:54:58,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:54:58,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:54:58,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:54:58,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:54:58,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:54:58,633 INFO L87 Difference]: Start difference. First operand 3092 states and 4269 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:59,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:54:59,363 INFO L93 Difference]: Finished difference Result 4733 states and 6803 transitions. [2023-11-06 22:54:59,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:54:59,364 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 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 54 [2023-11-06 22:54:59,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:54:59,383 INFO L225 Difference]: With dead ends: 4733 [2023-11-06 22:54:59,384 INFO L226 Difference]: Without dead ends: 3514 [2023-11-06 22:54:59,386 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:54:59,387 INFO L413 NwaCegarLoop]: 1143 mSDtfsCounter, 577 mSDsluCounter, 593 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 577 SdHoareTripleChecker+Valid, 1736 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:54:59,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [577 Valid, 1736 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:54:59,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3514 states. [2023-11-06 22:54:59,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3514 to 3512. [2023-11-06 22:54:59,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3512 states, 3506 states have (on average 1.4110096976611524) internal successors, (4947), 3511 states have internal predecessors, (4947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:59,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3512 states to 3512 states and 4947 transitions. [2023-11-06 22:54:59,991 INFO L78 Accepts]: Start accepts. Automaton has 3512 states and 4947 transitions. Word has length 54 [2023-11-06 22:54:59,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:54:59,992 INFO L495 AbstractCegarLoop]: Abstraction has 3512 states and 4947 transitions. [2023-11-06 22:54:59,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:59,992 INFO L276 IsEmpty]: Start isEmpty. Operand 3512 states and 4947 transitions. [2023-11-06 22:54:59,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-06 22:54:59,995 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:54:59,995 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] [2023-11-06 22:54:59,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-06 22:54:59,996 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-11-06 22:54:59,996 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:59,996 INFO L85 PathProgramCache]: Analyzing trace with hash -1612308197, now seen corresponding path program 1 times [2023-11-06 22:54:59,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:54:59,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558114577] [2023-11-06 22:54:59,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:59,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:55:00,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:55:00,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:55:00,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:55:00,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558114577] [2023-11-06 22:55:00,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558114577] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:55:00,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:55:00,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:55:00,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675011134] [2023-11-06 22:55:00,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:55:00,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:55:00,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:55:00,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:55:00,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:55:00,065 INFO L87 Difference]: Start difference. First operand 3512 states and 4947 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:55:01,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:55:01,162 INFO L93 Difference]: Finished difference Result 7801 states and 11245 transitions. [2023-11-06 22:55:01,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:55:01,163 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 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 54 [2023-11-06 22:55:01,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:55:01,176 INFO L225 Difference]: With dead ends: 7801 [2023-11-06 22:55:01,176 INFO L226 Difference]: Without dead ends: 5349 [2023-11-06 22:55:01,180 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 [2023-11-06 22:55:01,181 INFO L413 NwaCegarLoop]: 1200 mSDtfsCounter, 649 mSDsluCounter, 761 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 649 SdHoareTripleChecker+Valid, 1961 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:55:01,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [649 Valid, 1961 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:55:01,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5349 states. [2023-11-06 22:55:02,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5349 to 5343. [2023-11-06 22:55:02,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5343 states, 5337 states have (on average 1.405283867341203) internal successors, (7500), 5342 states have internal predecessors, (7500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:55:02,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5343 states to 5343 states and 7500 transitions. [2023-11-06 22:55:02,203 INFO L78 Accepts]: Start accepts. Automaton has 5343 states and 7500 transitions. Word has length 54 [2023-11-06 22:55:02,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:55:02,204 INFO L495 AbstractCegarLoop]: Abstraction has 5343 states and 7500 transitions. [2023-11-06 22:55:02,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:55:02,204 INFO L276 IsEmpty]: Start isEmpty. Operand 5343 states and 7500 transitions. [2023-11-06 22:55:02,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-06 22:55:02,208 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:55:02,208 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] [2023-11-06 22:55:02,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-06 22:55:02,209 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-11-06 22:55:02,209 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:55:02,209 INFO L85 PathProgramCache]: Analyzing trace with hash -1623263409, now seen corresponding path program 1 times [2023-11-06 22:55:02,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:55:02,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068487333] [2023-11-06 22:55:02,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:55:02,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:55:02,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:55:02,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:55:02,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:55:02,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068487333] [2023-11-06 22:55:02,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068487333] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:55:02,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:55:02,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:55:02,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846188599] [2023-11-06 22:55:02,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:55:02,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:55:02,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:55:02,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:55:02,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:55:02,277 INFO L87 Difference]: Start difference. First operand 5343 states and 7500 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:55:03,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:55:03,637 INFO L93 Difference]: Finished difference Result 9822 states and 14011 transitions. [2023-11-06 22:55:03,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:55:03,639 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2023-11-06 22:55:03,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:55:03,653 INFO L225 Difference]: With dead ends: 9822 [2023-11-06 22:55:03,653 INFO L226 Difference]: Without dead ends: 5548 [2023-11-06 22:55:03,660 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 [2023-11-06 22:55:03,660 INFO L413 NwaCegarLoop]: 855 mSDtfsCounter, 848 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 848 SdHoareTripleChecker+Valid, 1285 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:55:03,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [848 Valid, 1285 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:55:03,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5548 states. [2023-11-06 22:55:04,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5548 to 4450. [2023-11-06 22:55:04,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4450 states, 4445 states have (on average 1.4213723284589426) internal successors, (6318), 4449 states have internal predecessors, (6318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:55:04,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4450 states to 4450 states and 6318 transitions. [2023-11-06 22:55:04,447 INFO L78 Accepts]: Start accepts. Automaton has 4450 states and 6318 transitions. Word has length 55 [2023-11-06 22:55:04,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:55:04,447 INFO L495 AbstractCegarLoop]: Abstraction has 4450 states and 6318 transitions. [2023-11-06 22:55:04,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:55:04,448 INFO L276 IsEmpty]: Start isEmpty. Operand 4450 states and 6318 transitions. [2023-11-06 22:55:04,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-06 22:55:04,450 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:55:04,451 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] [2023-11-06 22:55:04,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-06 22:55:04,451 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-11-06 22:55:04,452 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:55:04,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1493102210, now seen corresponding path program 1 times [2023-11-06 22:55:04,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:55:04,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906438472] [2023-11-06 22:55:04,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:55:04,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:55:04,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:55:04,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:55:04,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:55:04,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906438472] [2023-11-06 22:55:04,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906438472] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:55:04,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:55:04,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:55:04,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867223509] [2023-11-06 22:55:04,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:55:04,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:55:04,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:55:04,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:55:04,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:55:04,523 INFO L87 Difference]: Start difference. First operand 4450 states and 6318 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:55:05,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:55:05,533 INFO L93 Difference]: Finished difference Result 8479 states and 12251 transitions. [2023-11-06 22:55:05,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:55:05,534 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2023-11-06 22:55:05,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:55:05,544 INFO L225 Difference]: With dead ends: 8479 [2023-11-06 22:55:05,545 INFO L226 Difference]: Without dead ends: 4773 [2023-11-06 22:55:05,550 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 [2023-11-06 22:55:05,551 INFO L413 NwaCegarLoop]: 713 mSDtfsCounter, 659 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 659 SdHoareTripleChecker+Valid, 1016 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:55:05,551 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [659 Valid, 1016 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:55:05,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4773 states. [2023-11-06 22:55:06,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4773 to 3845. [2023-11-06 22:55:06,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3845 states, 3841 states have (on average 1.4308773756834159) internal successors, (5496), 3844 states have internal predecessors, (5496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:55:06,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3845 states to 3845 states and 5496 transitions. [2023-11-06 22:55:06,364 INFO L78 Accepts]: Start accepts. Automaton has 3845 states and 5496 transitions. Word has length 55 [2023-11-06 22:55:06,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:55:06,364 INFO L495 AbstractCegarLoop]: Abstraction has 3845 states and 5496 transitions. [2023-11-06 22:55:06,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:55:06,364 INFO L276 IsEmpty]: Start isEmpty. Operand 3845 states and 5496 transitions. [2023-11-06 22:55:06,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-06 22:55:06,367 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:55:06,367 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] [2023-11-06 22:55:06,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-06 22:55:06,368 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-11-06 22:55:06,368 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:55:06,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1419432604, now seen corresponding path program 1 times [2023-11-06 22:55:06,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:55:06,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980138466] [2023-11-06 22:55:06,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:55:06,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:55:06,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:55:06,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:55:06,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:55:06,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980138466] [2023-11-06 22:55:06,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980138466] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:55:06,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:55:06,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:55:06,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702774603] [2023-11-06 22:55:06,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:55:06,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:55:06,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:55:06,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:55:06,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:55:06,422 INFO L87 Difference]: Start difference. First operand 3845 states and 5496 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:55:07,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:55:07,695 INFO L93 Difference]: Finished difference Result 7664 states and 11130 transitions. [2023-11-06 22:55:07,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:55:07,696 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2023-11-06 22:55:07,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:55:07,707 INFO L225 Difference]: With dead ends: 7664 [2023-11-06 22:55:07,707 INFO L226 Difference]: Without dead ends: 4134 [2023-11-06 22:55:07,712 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 [2023-11-06 22:55:07,713 INFO L413 NwaCegarLoop]: 589 mSDtfsCounter, 460 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 460 SdHoareTripleChecker+Valid, 845 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:55:07,714 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [460 Valid, 845 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:55:07,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4134 states. [2023-11-06 22:55:08,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4134 to 3399. [2023-11-06 22:55:08,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3399 states, 3395 states have (on average 1.4435935198821797) internal successors, (4901), 3398 states have internal predecessors, (4901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:55:08,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3399 states to 3399 states and 4901 transitions. [2023-11-06 22:55:08,416 INFO L78 Accepts]: Start accepts. Automaton has 3399 states and 4901 transitions. Word has length 55 [2023-11-06 22:55:08,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:55:08,416 INFO L495 AbstractCegarLoop]: Abstraction has 3399 states and 4901 transitions. [2023-11-06 22:55:08,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:55:08,416 INFO L276 IsEmpty]: Start isEmpty. Operand 3399 states and 4901 transitions. [2023-11-06 22:55:08,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-06 22:55:08,417 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:55:08,418 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] [2023-11-06 22:55:08,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-06 22:55:08,418 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-11-06 22:55:08,418 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:55:08,419 INFO L85 PathProgramCache]: Analyzing trace with hash -1871407914, now seen corresponding path program 1 times [2023-11-06 22:55:08,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:55:08,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381868099] [2023-11-06 22:55:08,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:55:08,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:55:08,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:55:09,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:55:09,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:55:09,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381868099] [2023-11-06 22:55:09,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381868099] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:55:09,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:55:09,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-11-06 22:55:09,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589487512] [2023-11-06 22:55:09,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:55:09,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-06 22:55:09,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:55:09,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-06 22:55:09,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2023-11-06 22:55:09,681 INFO L87 Difference]: Start difference. First operand 3399 states and 4901 transitions. Second operand has 19 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 19 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:55:14,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:55:14,339 INFO L93 Difference]: Finished difference Result 7037 states and 10206 transitions. [2023-11-06 22:55:14,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-06 22:55:14,340 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 19 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2023-11-06 22:55:14,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:55:14,353 INFO L225 Difference]: With dead ends: 7037 [2023-11-06 22:55:14,353 INFO L226 Difference]: Without dead ends: 7033 [2023-11-06 22:55:14,355 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=246, Invalid=1086, Unknown=0, NotChecked=0, Total=1332 [2023-11-06 22:55:14,356 INFO L413 NwaCegarLoop]: 663 mSDtfsCounter, 4968 mSDsluCounter, 5304 mSDsCounter, 0 mSdLazyCounter, 2522 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4968 SdHoareTripleChecker+Valid, 5967 SdHoareTripleChecker+Invalid, 2541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 2522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:55:14,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4968 Valid, 5967 Invalid, 2541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 2522 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-06 22:55:14,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7033 states. [2023-11-06 22:55:15,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7033 to 3399. [2023-11-06 22:55:15,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3399 states, 3395 states have (on average 1.443298969072165) internal successors, (4900), 3398 states have internal predecessors, (4900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:55:15,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3399 states to 3399 states and 4900 transitions. [2023-11-06 22:55:15,273 INFO L78 Accepts]: Start accepts. Automaton has 3399 states and 4900 transitions. Word has length 56 [2023-11-06 22:55:15,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:55:15,274 INFO L495 AbstractCegarLoop]: Abstraction has 3399 states and 4900 transitions. [2023-11-06 22:55:15,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 19 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:55:15,274 INFO L276 IsEmpty]: Start isEmpty. Operand 3399 states and 4900 transitions. [2023-11-06 22:55:15,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-06 22:55:15,276 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:55:15,276 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] [2023-11-06 22:55:15,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-06 22:55:15,277 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-11-06 22:55:15,277 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:55:15,277 INFO L85 PathProgramCache]: Analyzing trace with hash -1094868748, now seen corresponding path program 1 times [2023-11-06 22:55:15,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:55:15,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53283843] [2023-11-06 22:55:15,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:55:15,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:55:15,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:55:16,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:55:16,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:55:16,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53283843] [2023-11-06 22:55:16,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53283843] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:55:16,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:55:16,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-11-06 22:55:16,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497254808] [2023-11-06 22:55:16,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:55:16,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-06 22:55:16,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:55:16,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-06 22:55:16,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2023-11-06 22:55:16,475 INFO L87 Difference]: Start difference. First operand 3399 states and 4900 transitions. Second operand has 19 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 19 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:55:21,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:55:21,594 INFO L93 Difference]: Finished difference Result 6423 states and 9295 transitions. [2023-11-06 22:55:21,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-06 22:55:21,594 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 19 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2023-11-06 22:55:21,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:55:21,604 INFO L225 Difference]: With dead ends: 6423 [2023-11-06 22:55:21,604 INFO L226 Difference]: Without dead ends: 6419 [2023-11-06 22:55:21,607 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=238, Invalid=884, Unknown=0, NotChecked=0, Total=1122 [2023-11-06 22:55:21,608 INFO L413 NwaCegarLoop]: 684 mSDtfsCounter, 3736 mSDsluCounter, 7139 mSDsCounter, 0 mSdLazyCounter, 3069 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3736 SdHoareTripleChecker+Valid, 7823 SdHoareTripleChecker+Invalid, 3084 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 3069 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-11-06 22:55:21,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3736 Valid, 7823 Invalid, 3084 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 3069 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-11-06 22:55:21,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6419 states. [2023-11-06 22:55:22,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6419 to 3406. [2023-11-06 22:55:22,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3406 states, 3402 states have (on average 1.4429747207524986) internal successors, (4909), 3405 states have internal predecessors, (4909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:55:22,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3406 states to 3406 states and 4909 transitions. [2023-11-06 22:55:22,423 INFO L78 Accepts]: Start accepts. Automaton has 3406 states and 4909 transitions. Word has length 56 [2023-11-06 22:55:22,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:55:22,423 INFO L495 AbstractCegarLoop]: Abstraction has 3406 states and 4909 transitions. [2023-11-06 22:55:22,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 19 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:55:22,423 INFO L276 IsEmpty]: Start isEmpty. Operand 3406 states and 4909 transitions. [2023-11-06 22:55:22,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-06 22:55:22,425 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:55:22,425 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] [2023-11-06 22:55:22,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-06 22:55:22,426 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-11-06 22:55:22,426 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:55:22,426 INFO L85 PathProgramCache]: Analyzing trace with hash 557999134, now seen corresponding path program 1 times [2023-11-06 22:55:22,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:55:22,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409070071] [2023-11-06 22:55:22,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:55:22,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:55:22,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:55:23,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:55:23,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:55:23,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409070071] [2023-11-06 22:55:23,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409070071] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:55:23,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:55:23,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-11-06 22:55:23,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879234439] [2023-11-06 22:55:23,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:55:23,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-06 22:55:23,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:55:23,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-06 22:55:23,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2023-11-06 22:55:23,531 INFO L87 Difference]: Start difference. First operand 3406 states and 4909 transitions. Second operand has 19 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 19 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:55:28,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:55:28,657 INFO L93 Difference]: Finished difference Result 6349 states and 9194 transitions. [2023-11-06 22:55:28,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-11-06 22:55:28,658 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 19 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2023-11-06 22:55:28,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:55:28,667 INFO L225 Difference]: With dead ends: 6349 [2023-11-06 22:55:28,667 INFO L226 Difference]: Without dead ends: 6343 [2023-11-06 22:55:28,670 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=331, Invalid=1151, Unknown=0, NotChecked=0, Total=1482 [2023-11-06 22:55:28,671 INFO L413 NwaCegarLoop]: 587 mSDtfsCounter, 3557 mSDsluCounter, 6921 mSDsCounter, 0 mSdLazyCounter, 2973 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3557 SdHoareTripleChecker+Valid, 7508 SdHoareTripleChecker+Invalid, 2989 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 2973 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:55:28,671 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3557 Valid, 7508 Invalid, 2989 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 2973 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-06 22:55:28,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6343 states. [2023-11-06 22:55:29,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6343 to 3406. [2023-11-06 22:55:29,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3406 states, 3402 states have (on average 1.4426807760141094) internal successors, (4908), 3405 states have internal predecessors, (4908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:55:29,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3406 states to 3406 states and 4908 transitions. [2023-11-06 22:55:29,484 INFO L78 Accepts]: Start accepts. Automaton has 3406 states and 4908 transitions. Word has length 56 [2023-11-06 22:55:29,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:55:29,484 INFO L495 AbstractCegarLoop]: Abstraction has 3406 states and 4908 transitions. [2023-11-06 22:55:29,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 19 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:55:29,485 INFO L276 IsEmpty]: Start isEmpty. Operand 3406 states and 4908 transitions. [2023-11-06 22:55:29,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-06 22:55:29,487 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:55:29,487 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] [2023-11-06 22:55:29,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-06 22:55:29,487 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-11-06 22:55:29,488 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:55:29,488 INFO L85 PathProgramCache]: Analyzing trace with hash 513328539, now seen corresponding path program 1 times [2023-11-06 22:55:29,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:55:29,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133102108] [2023-11-06 22:55:29,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:55:29,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:55:29,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:55:30,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:55:30,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:55:30,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133102108] [2023-11-06 22:55:30,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133102108] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:55:30,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:55:30,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-06 22:55:30,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339654542] [2023-11-06 22:55:30,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:55:30,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-06 22:55:30,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:55:30,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-06 22:55:30,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-11-06 22:55:30,051 INFO L87 Difference]: Start difference. First operand 3406 states and 4908 transitions. Second operand has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:55:33,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:55:33,692 INFO L93 Difference]: Finished difference Result 7212 states and 10434 transitions. [2023-11-06 22:55:33,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-06 22:55:33,692 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2023-11-06 22:55:33,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:55:33,700 INFO L225 Difference]: With dead ends: 7212 [2023-11-06 22:55:33,700 INFO L226 Difference]: Without dead ends: 7104 [2023-11-06 22:55:33,702 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2023-11-06 22:55:33,702 INFO L413 NwaCegarLoop]: 754 mSDtfsCounter, 3808 mSDsluCounter, 3983 mSDsCounter, 0 mSdLazyCounter, 1092 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3808 SdHoareTripleChecker+Valid, 4737 SdHoareTripleChecker+Invalid, 1107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1092 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-06 22:55:33,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3808 Valid, 4737 Invalid, 1107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1092 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-06 22:55:33,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7104 states. [2023-11-06 22:55:34,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7104 to 3394. [2023-11-06 22:55:34,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3394 states, 3391 states have (on average 1.443526983190799) internal successors, (4895), 3393 states have internal predecessors, (4895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:55:34,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3394 states to 3394 states and 4895 transitions. [2023-11-06 22:55:34,547 INFO L78 Accepts]: Start accepts. Automaton has 3394 states and 4895 transitions. Word has length 56 [2023-11-06 22:55:34,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:55:34,547 INFO L495 AbstractCegarLoop]: Abstraction has 3394 states and 4895 transitions. [2023-11-06 22:55:34,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:55:34,547 INFO L276 IsEmpty]: Start isEmpty. Operand 3394 states and 4895 transitions. [2023-11-06 22:55:34,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-06 22:55:34,549 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:55:34,549 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] [2023-11-06 22:55:34,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-06 22:55:34,549 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-11-06 22:55:34,549 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:55:34,550 INFO L85 PathProgramCache]: Analyzing trace with hash 1785706246, now seen corresponding path program 1 times [2023-11-06 22:55:34,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:55:34,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957358553] [2023-11-06 22:55:34,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:55:34,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:55:34,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:55:35,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:55:35,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:55:35,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957358553] [2023-11-06 22:55:35,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957358553] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:55:35,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:55:35,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-11-06 22:55:35,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340288315] [2023-11-06 22:55:35,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:55:35,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-06 22:55:35,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:55:35,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-06 22:55:35,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2023-11-06 22:55:35,374 INFO L87 Difference]: Start difference. First operand 3394 states and 4895 transitions. Second operand has 15 states, 15 states have (on average 3.8) internal successors, (57), 15 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) [2023-11-06 22:55:40,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:55:40,850 INFO L93 Difference]: Finished difference Result 7831 states and 11389 transitions. [2023-11-06 22:55:40,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-06 22:55:40,851 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.8) internal successors, (57), 15 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 [2023-11-06 22:55:40,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:55:40,859 INFO L225 Difference]: With dead ends: 7831 [2023-11-06 22:55:40,859 INFO L226 Difference]: Without dead ends: 7827 [2023-11-06 22:55:40,861 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=199, Invalid=671, Unknown=0, NotChecked=0, Total=870 [2023-11-06 22:55:40,861 INFO L413 NwaCegarLoop]: 761 mSDtfsCounter, 4125 mSDsluCounter, 5170 mSDsCounter, 0 mSdLazyCounter, 2070 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4125 SdHoareTripleChecker+Valid, 5931 SdHoareTripleChecker+Invalid, 2085 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 2070 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-06 22:55:40,862 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4125 Valid, 5931 Invalid, 2085 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 2070 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-06 22:55:40,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7827 states. [2023-11-06 22:55:41,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7827 to 3383. [2023-11-06 22:55:41,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3383 states, 3381 states have (on average 1.4439514936409346) internal successors, (4882), 3382 states have internal predecessors, (4882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:55:41,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3383 states to 3383 states and 4882 transitions. [2023-11-06 22:55:41,911 INFO L78 Accepts]: Start accepts. Automaton has 3383 states and 4882 transitions. Word has length 57 [2023-11-06 22:55:41,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:55:41,912 INFO L495 AbstractCegarLoop]: Abstraction has 3383 states and 4882 transitions. [2023-11-06 22:55:41,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.8) internal successors, (57), 15 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) [2023-11-06 22:55:41,912 INFO L276 IsEmpty]: Start isEmpty. Operand 3383 states and 4882 transitions. [2023-11-06 22:55:41,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-06 22:55:41,913 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:55:41,913 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] [2023-11-06 22:55:41,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-06 22:55:41,914 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-11-06 22:55:41,914 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:55:41,914 INFO L85 PathProgramCache]: Analyzing trace with hash 247888215, now seen corresponding path program 1 times [2023-11-06 22:55:41,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:55:41,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950775671] [2023-11-06 22:55:41,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:55:41,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:55:41,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:55:42,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:55:42,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:55:42,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950775671] [2023-11-06 22:55:42,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950775671] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:55:42,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:55:42,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-06 22:55:42,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366565253] [2023-11-06 22:55:42,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:55:42,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-06 22:55:42,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:55:42,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-06 22:55:42,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-11-06 22:55:42,458 INFO L87 Difference]: Start difference. First operand 3383 states and 4882 transitions. Second operand has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 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) [2023-11-06 22:55:46,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:55:46,771 INFO L93 Difference]: Finished difference Result 7138 states and 10333 transitions. [2023-11-06 22:55:46,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-06 22:55:46,771 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 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 [2023-11-06 22:55:46,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:55:46,779 INFO L225 Difference]: With dead ends: 7138 [2023-11-06 22:55:46,779 INFO L226 Difference]: Without dead ends: 6990 [2023-11-06 22:55:46,781 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=99, Invalid=321, Unknown=0, NotChecked=0, Total=420 [2023-11-06 22:55:46,781 INFO L413 NwaCegarLoop]: 733 mSDtfsCounter, 3116 mSDsluCounter, 3807 mSDsCounter, 0 mSdLazyCounter, 1063 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3116 SdHoareTripleChecker+Valid, 4540 SdHoareTripleChecker+Invalid, 1078 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1063 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-06 22:55:46,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3116 Valid, 4540 Invalid, 1078 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1063 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-06 22:55:46,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6990 states. [2023-11-06 22:55:47,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6990 to 3331. [2023-11-06 22:55:47,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3331 states, 3330 states have (on average 1.4447447447447448) internal successors, (4811), 3330 states have internal predecessors, (4811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:55:47,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3331 states to 3331 states and 4811 transitions. [2023-11-06 22:55:47,925 INFO L78 Accepts]: Start accepts. Automaton has 3331 states and 4811 transitions. Word has length 57 [2023-11-06 22:55:47,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:55:47,925 INFO L495 AbstractCegarLoop]: Abstraction has 3331 states and 4811 transitions. [2023-11-06 22:55:47,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 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) [2023-11-06 22:55:47,925 INFO L276 IsEmpty]: Start isEmpty. Operand 3331 states and 4811 transitions. [2023-11-06 22:55:47,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-06 22:55:47,956 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:55:47,957 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] [2023-11-06 22:55:47,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-06 22:55:47,957 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-11-06 22:55:47,957 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:55:47,958 INFO L85 PathProgramCache]: Analyzing trace with hash -101338621, now seen corresponding path program 1 times [2023-11-06 22:55:47,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:55:47,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109131260] [2023-11-06 22:55:47,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:55:47,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:55:47,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:55:48,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:55:48,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:55:48,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109131260] [2023-11-06 22:55:48,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109131260] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:55:48,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:55:48,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:55:48,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340664034] [2023-11-06 22:55:48,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:55:48,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:55:48,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:55:48,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:55:48,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:55:48,065 INFO L87 Difference]: Start difference. First operand 3331 states and 4811 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 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) [2023-11-06 22:55:51,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:55:51,070 INFO L93 Difference]: Finished difference Result 10288 states and 15204 transitions. [2023-11-06 22:55:51,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:55:51,071 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 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 [2023-11-06 22:55:51,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:55:51,078 INFO L225 Difference]: With dead ends: 10288 [2023-11-06 22:55:51,078 INFO L226 Difference]: Without dead ends: 7566 [2023-11-06 22:55:51,082 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:55:51,082 INFO L413 NwaCegarLoop]: 551 mSDtfsCounter, 1628 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1628 SdHoareTripleChecker+Valid, 1107 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:55:51,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1628 Valid, 1107 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:55:51,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7566 states. [2023-11-06 22:55:53,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7566 to 5750. [2023-11-06 22:55:53,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5750 states, 5749 states have (on average 1.4447730040006959) internal successors, (8306), 5749 states have internal predecessors, (8306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:55:53,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5750 states to 5750 states and 8306 transitions. [2023-11-06 22:55:53,242 INFO L78 Accepts]: Start accepts. Automaton has 5750 states and 8306 transitions. Word has length 63 [2023-11-06 22:55:53,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:55:53,242 INFO L495 AbstractCegarLoop]: Abstraction has 5750 states and 8306 transitions. [2023-11-06 22:55:53,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 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) [2023-11-06 22:55:53,243 INFO L276 IsEmpty]: Start isEmpty. Operand 5750 states and 8306 transitions. [2023-11-06 22:55:53,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-06 22:55:53,246 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:55:53,246 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] [2023-11-06 22:55:53,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-06 22:55:53,247 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-11-06 22:55:53,248 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:55:53,248 INFO L85 PathProgramCache]: Analyzing trace with hash 838129574, now seen corresponding path program 1 times [2023-11-06 22:55:53,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:55:53,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126571723] [2023-11-06 22:55:53,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:55:53,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:55:53,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:55:53,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:55:53,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:55:53,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126571723] [2023-11-06 22:55:53,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126571723] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:55:53,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:55:53,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:55:53,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478134549] [2023-11-06 22:55:53,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:55:53,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:55:53,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:55:53,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:55:53,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:55:53,357 INFO L87 Difference]: Start difference. First operand 5750 states and 8306 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:55:55,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:55:55,706 INFO L93 Difference]: Finished difference Result 9756 states and 14183 transitions. [2023-11-06 22:55:55,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:55:55,706 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 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 64 [2023-11-06 22:55:55,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:55:55,712 INFO L225 Difference]: With dead ends: 9756 [2023-11-06 22:55:55,712 INFO L226 Difference]: Without dead ends: 4594 [2023-11-06 22:55:55,718 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:55:55,719 INFO L413 NwaCegarLoop]: 570 mSDtfsCounter, 651 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 651 SdHoareTripleChecker+Valid, 966 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:55:55,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [651 Valid, 966 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:55:55,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4594 states. [2023-11-06 22:55:57,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4594 to 4590. [2023-11-06 22:55:57,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4590 states, 4589 states have (on average 1.4310307256482895) internal successors, (6567), 4589 states have internal predecessors, (6567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:55:57,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4590 states to 4590 states and 6567 transitions. [2023-11-06 22:55:57,693 INFO L78 Accepts]: Start accepts. Automaton has 4590 states and 6567 transitions. Word has length 64 [2023-11-06 22:55:57,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:55:57,693 INFO L495 AbstractCegarLoop]: Abstraction has 4590 states and 6567 transitions. [2023-11-06 22:55:57,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:55:57,693 INFO L276 IsEmpty]: Start isEmpty. Operand 4590 states and 6567 transitions. [2023-11-06 22:55:57,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-06 22:55:57,697 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:55:57,697 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] [2023-11-06 22:55:57,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-06 22:55:57,697 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-11-06 22:55:57,698 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:55:57,698 INFO L85 PathProgramCache]: Analyzing trace with hash 1809556404, now seen corresponding path program 1 times [2023-11-06 22:55:57,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:55:57,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242577438] [2023-11-06 22:55:57,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:55:57,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:55:57,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:55:57,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:55:57,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:55:57,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242577438] [2023-11-06 22:55:57,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242577438] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:55:57,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:55:57,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:55:57,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006336762] [2023-11-06 22:55:57,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:55:57,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:55:57,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:55:57,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:55:57,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:55:57,804 INFO L87 Difference]: Start difference. First operand 4590 states and 6567 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 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) [2023-11-06 22:56:01,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:56:01,649 INFO L93 Difference]: Finished difference Result 12214 states and 17701 transitions. [2023-11-06 22:56:01,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:56:01,649 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 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 [2023-11-06 22:56:01,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:56:01,659 INFO L225 Difference]: With dead ends: 12214 [2023-11-06 22:56:01,659 INFO L226 Difference]: Without dead ends: 8190 [2023-11-06 22:56:01,664 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 [2023-11-06 22:56:01,665 INFO L413 NwaCegarLoop]: 595 mSDtfsCounter, 331 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 829 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:56:01,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [331 Valid, 829 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:56:01,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8190 states. [2023-11-06 22:56:05,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8190 to 7676. [2023-11-06 22:56:05,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7676 states, 7675 states have (on average 1.4347882736156352) internal successors, (11012), 7675 states have internal predecessors, (11012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:56:05,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7676 states to 7676 states and 11012 transitions. [2023-11-06 22:56:05,028 INFO L78 Accepts]: Start accepts. Automaton has 7676 states and 11012 transitions. Word has length 66 [2023-11-06 22:56:05,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:56:05,028 INFO L495 AbstractCegarLoop]: Abstraction has 7676 states and 11012 transitions. [2023-11-06 22:56:05,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 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) [2023-11-06 22:56:05,028 INFO L276 IsEmpty]: Start isEmpty. Operand 7676 states and 11012 transitions. [2023-11-06 22:56:05,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-06 22:56:05,031 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:56:05,031 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] [2023-11-06 22:56:05,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-06 22:56:05,032 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-11-06 22:56:05,032 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:56:05,032 INFO L85 PathProgramCache]: Analyzing trace with hash 827517135, now seen corresponding path program 1 times [2023-11-06 22:56:05,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:56:05,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136353380] [2023-11-06 22:56:05,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:56:05,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:56:05,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:56:05,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:56:05,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:56:05,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136353380] [2023-11-06 22:56:05,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136353380] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:56:05,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:56:05,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:56:05,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098800058] [2023-11-06 22:56:05,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:56:05,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:56:05,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:56:05,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:56:05,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:56:05,193 INFO L87 Difference]: Start difference. First operand 7676 states and 11012 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 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) [2023-11-06 22:56:11,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:56:11,945 INFO L93 Difference]: Finished difference Result 21136 states and 30494 transitions. [2023-11-06 22:56:11,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:56:11,945 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 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 [2023-11-06 22:56:11,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:56:11,965 INFO L225 Difference]: With dead ends: 21136 [2023-11-06 22:56:11,965 INFO L226 Difference]: Without dead ends: 14026 [2023-11-06 22:56:11,972 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 [2023-11-06 22:56:11,973 INFO L413 NwaCegarLoop]: 581 mSDtfsCounter, 282 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 858 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:56:11,973 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 858 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:56:11,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14026 states. [2023-11-06 22:56:17,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14026 to 13000. [2023-11-06 22:56:17,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13000 states, 12999 states have (on average 1.4296484344949612) internal successors, (18584), 12999 states have internal predecessors, (18584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:56:17,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13000 states to 13000 states and 18584 transitions. [2023-11-06 22:56:17,993 INFO L78 Accepts]: Start accepts. Automaton has 13000 states and 18584 transitions. Word has length 66 [2023-11-06 22:56:17,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:56:17,994 INFO L495 AbstractCegarLoop]: Abstraction has 13000 states and 18584 transitions. [2023-11-06 22:56:17,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 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) [2023-11-06 22:56:17,994 INFO L276 IsEmpty]: Start isEmpty. Operand 13000 states and 18584 transitions. [2023-11-06 22:56:17,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-06 22:56:17,997 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:56:17,997 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, 1, 1, 1, 1, 1] [2023-11-06 22:56:17,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-06 22:56:17,997 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-11-06 22:56:17,998 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:56:17,998 INFO L85 PathProgramCache]: Analyzing trace with hash 1051118849, now seen corresponding path program 1 times [2023-11-06 22:56:17,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:56:17,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437690105] [2023-11-06 22:56:17,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:56:17,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:56:18,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:56:18,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:56:18,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:56:18,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437690105] [2023-11-06 22:56:18,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437690105] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:56:18,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:56:18,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 22:56:18,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646444505] [2023-11-06 22:56:18,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:56:18,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:56:18,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:56:18,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:56:18,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:56:18,204 INFO L87 Difference]: Start difference. First operand 13000 states and 18584 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 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) [2023-11-06 22:56:31,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:56:31,937 INFO L93 Difference]: Finished difference Result 27461 states and 38666 transitions. [2023-11-06 22:56:31,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-06 22:56:31,937 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 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 [2023-11-06 22:56:31,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:56:31,972 INFO L225 Difference]: With dead ends: 27461 [2023-11-06 22:56:31,972 INFO L226 Difference]: Without dead ends: 27459 [2023-11-06 22:56:31,977 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 [2023-11-06 22:56:31,977 INFO L413 NwaCegarLoop]: 570 mSDtfsCounter, 630 mSDsluCounter, 1781 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 630 SdHoareTripleChecker+Valid, 2351 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:56:31,978 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [630 Valid, 2351 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:56:31,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27459 states. [2023-11-06 22:56:39,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27459 to 14104. [2023-11-06 22:56:39,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14104 states, 14103 states have (on average 1.3960150322626392) internal successors, (19688), 14103 states have internal predecessors, (19688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:56:39,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14104 states to 14104 states and 19688 transitions. [2023-11-06 22:56:39,199 INFO L78 Accepts]: Start accepts. Automaton has 14104 states and 19688 transitions. Word has length 68 [2023-11-06 22:56:39,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:56:39,199 INFO L495 AbstractCegarLoop]: Abstraction has 14104 states and 19688 transitions. [2023-11-06 22:56:39,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 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) [2023-11-06 22:56:39,199 INFO L276 IsEmpty]: Start isEmpty. Operand 14104 states and 19688 transitions. [2023-11-06 22:56:39,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-06 22:56:39,202 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:56:39,202 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] [2023-11-06 22:56:39,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-06 22:56:39,202 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-11-06 22:56:39,203 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:56:39,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1654492608, now seen corresponding path program 1 times [2023-11-06 22:56:39,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:56:39,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844744903] [2023-11-06 22:56:39,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:56:39,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:56:39,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:56:39,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:56:39,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:56:39,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844744903] [2023-11-06 22:56:39,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844744903] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:56:39,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:56:39,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:56:39,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169378778] [2023-11-06 22:56:39,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:56:39,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:56:39,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:56:39,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:56:39,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:56:39,262 INFO L87 Difference]: Start difference. First operand 14104 states and 19688 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 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) [2023-11-06 22:56:51,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:56:51,729 INFO L93 Difference]: Finished difference Result 38111 states and 53334 transitions. [2023-11-06 22:56:51,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:56:51,729 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 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 [2023-11-06 22:56:51,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:56:51,761 INFO L225 Difference]: With dead ends: 38111 [2023-11-06 22:56:51,761 INFO L226 Difference]: Without dead ends: 24554 [2023-11-06 22:56:51,773 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 [2023-11-06 22:56:51,774 INFO L413 NwaCegarLoop]: 526 mSDtfsCounter, 309 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 785 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:56:51,775 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [309 Valid, 785 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:56:51,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24554 states. [2023-11-06 22:57:04,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24554 to 24184. [2023-11-06 22:57:04,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24184 states, 24183 states have (on average 1.3714179382210643) internal successors, (33165), 24183 states have internal predecessors, (33165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:57:04,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24184 states to 24184 states and 33165 transitions. [2023-11-06 22:57:04,172 INFO L78 Accepts]: Start accepts. Automaton has 24184 states and 33165 transitions. Word has length 69 [2023-11-06 22:57:04,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:57:04,173 INFO L495 AbstractCegarLoop]: Abstraction has 24184 states and 33165 transitions. [2023-11-06 22:57:04,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 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) [2023-11-06 22:57:04,173 INFO L276 IsEmpty]: Start isEmpty. Operand 24184 states and 33165 transitions. [2023-11-06 22:57:04,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-11-06 22:57:04,175 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:57:04,175 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] [2023-11-06 22:57:04,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-11-06 22:57:04,175 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-11-06 22:57:04,175 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:57:04,176 INFO L85 PathProgramCache]: Analyzing trace with hash -761417871, now seen corresponding path program 1 times [2023-11-06 22:57:04,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:57:04,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310110984] [2023-11-06 22:57:04,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:57:04,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:57:04,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:57:04,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:57:04,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:57:04,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310110984] [2023-11-06 22:57:04,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310110984] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:57:04,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:57:04,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:57:04,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273967092] [2023-11-06 22:57:04,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:57:04,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:57:04,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:57:04,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:57:04,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:57:04,284 INFO L87 Difference]: Start difference. First operand 24184 states and 33165 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:57:21,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:57:21,463 INFO L93 Difference]: Finished difference Result 41466 states and 57035 transitions. [2023-11-06 22:57:21,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:57:21,464 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2023-11-06 22:57:21,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:57:21,506 INFO L225 Difference]: With dead ends: 41466 [2023-11-06 22:57:21,506 INFO L226 Difference]: Without dead ends: 34384 [2023-11-06 22:57:21,516 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:57:21,517 INFO L413 NwaCegarLoop]: 592 mSDtfsCounter, 1045 mSDsluCounter, 728 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1045 SdHoareTripleChecker+Valid, 1320 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:57:21,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1045 Valid, 1320 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:57:21,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34384 states. [2023-11-06 22:57:36,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34384 to 29930. [2023-11-06 22:57:36,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29930 states, 29929 states have (on average 1.3666677804136456) internal successors, (40903), 29929 states have internal predecessors, (40903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:57:37,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29930 states to 29930 states and 40903 transitions. [2023-11-06 22:57:37,034 INFO L78 Accepts]: Start accepts. Automaton has 29930 states and 40903 transitions. Word has length 73 [2023-11-06 22:57:37,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:57:37,034 INFO L495 AbstractCegarLoop]: Abstraction has 29930 states and 40903 transitions. [2023-11-06 22:57:37,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:57:37,034 INFO L276 IsEmpty]: Start isEmpty. Operand 29930 states and 40903 transitions. [2023-11-06 22:57:37,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-06 22:57:37,036 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:57:37,037 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] [2023-11-06 22:57:37,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-11-06 22:57:37,037 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-11-06 22:57:37,037 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:57:37,037 INFO L85 PathProgramCache]: Analyzing trace with hash -669489783, now seen corresponding path program 1 times [2023-11-06 22:57:37,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:57:37,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096575558] [2023-11-06 22:57:37,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:57:37,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:57:37,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:57:37,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:57:37,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:57:37,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096575558] [2023-11-06 22:57:37,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096575558] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:57:37,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:57:37,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:57:37,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986896961] [2023-11-06 22:57:37,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:57:37,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:57:37,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:57:37,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:57:37,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:57:37,148 INFO L87 Difference]: Start difference. First operand 29930 states and 40903 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:57:56,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:57:56,766 INFO L93 Difference]: Finished difference Result 45034 states and 61763 transitions. [2023-11-06 22:57:56,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:57:56,767 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2023-11-06 22:57:56,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:57:56,821 INFO L225 Difference]: With dead ends: 45034 [2023-11-06 22:57:56,821 INFO L226 Difference]: Without dead ends: 37952 [2023-11-06 22:57:56,833 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:57:56,833 INFO L413 NwaCegarLoop]: 601 mSDtfsCounter, 976 mSDsluCounter, 872 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 976 SdHoareTripleChecker+Valid, 1473 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:57:56,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [976 Valid, 1473 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:57:56,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37952 states. [2023-11-06 22:58:15,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37952 to 35674. [2023-11-06 22:58:15,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35674 states, 35673 states have (on average 1.3634681692035993) internal successors, (48639), 35673 states have internal predecessors, (48639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:58:15,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35674 states to 35674 states and 48639 transitions. [2023-11-06 22:58:15,777 INFO L78 Accepts]: Start accepts. Automaton has 35674 states and 48639 transitions. Word has length 74 [2023-11-06 22:58:15,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:58:15,777 INFO L495 AbstractCegarLoop]: Abstraction has 35674 states and 48639 transitions. [2023-11-06 22:58:15,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:58:15,777 INFO L276 IsEmpty]: Start isEmpty. Operand 35674 states and 48639 transitions. [2023-11-06 22:58:15,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-06 22:58:15,779 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:58:15,780 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] [2023-11-06 22:58:15,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-11-06 22:58:15,780 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-11-06 22:58:15,780 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:58:15,781 INFO L85 PathProgramCache]: Analyzing trace with hash 1856624705, now seen corresponding path program 1 times [2023-11-06 22:58:15,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:58:15,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929298787] [2023-11-06 22:58:15,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:58:15,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:58:15,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:15,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:58:15,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:58:15,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929298787] [2023-11-06 22:58:15,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929298787] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:58:15,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:58:15,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:58:15,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817862266] [2023-11-06 22:58:15,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:58:15,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:58:15,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:58:15,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:58:15,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:58:15,885 INFO L87 Difference]: Start difference. First operand 35674 states and 48639 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)