./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8ab289-718c-43ae-b2ec-a2c19cff5f3d/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8ab289-718c-43ae-b2ec-a2c19cff5f3d/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8ab289-718c-43ae-b2ec-a2c19cff5f3d/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8ab289-718c-43ae-b2ec-a2c19cff5f3d/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8ab289-718c-43ae-b2ec-a2c19cff5f3d/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8ab289-718c-43ae-b2ec-a2c19cff5f3d/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ef92e2cd363e9cbada9057da9935ca7963cc6741d3474fe25a5d63d0a08b0a5f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:39:48,385 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:39:48,450 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8ab289-718c-43ae-b2ec-a2c19cff5f3d/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-19 07:39:48,454 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:39:48,455 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:39:48,479 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:39:48,480 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:39:48,481 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:39:48,482 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:39:48,482 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:39:48,483 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:39:48,484 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:39:48,484 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:39:48,485 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:39:48,485 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:39:48,486 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:39:48,486 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:39:48,487 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:39:48,488 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:39:48,488 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:39:48,489 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:39:48,489 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:39:48,490 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:39:48,491 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:39:48,491 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:39:48,492 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:39:48,492 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:39:48,493 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:39:48,493 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:39:48,494 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:39:48,495 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:39:48,495 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:39:48,495 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:39:48,496 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:39:48,496 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:39:48,497 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:39:48,497 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:39:48,498 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:39:48,498 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:39:48,499 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_6e8ab289-718c-43ae-b2ec-a2c19cff5f3d/bin/uautomizer-verify-uCwYo4JHxu/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8ab289-718c-43ae-b2ec-a2c19cff5f3d/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ef92e2cd363e9cbada9057da9935ca7963cc6741d3474fe25a5d63d0a08b0a5f [2023-11-19 07:39:48,740 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:39:48,771 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:39:48,774 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:39:48,776 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:39:48,777 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:39:48,778 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8ab289-718c-43ae-b2ec-a2c19cff5f3d/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2023-11-19 07:39:51,886 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:39:52,362 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:39:52,365 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8ab289-718c-43ae-b2ec-a2c19cff5f3d/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2023-11-19 07:39:52,383 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8ab289-718c-43ae-b2ec-a2c19cff5f3d/bin/uautomizer-verify-uCwYo4JHxu/data/d79f1c3ac/44d43788de1749ef9ffb811e24b294e8/FLAGca7f11cbe [2023-11-19 07:39:52,398 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8ab289-718c-43ae-b2ec-a2c19cff5f3d/bin/uautomizer-verify-uCwYo4JHxu/data/d79f1c3ac/44d43788de1749ef9ffb811e24b294e8 [2023-11-19 07:39:52,401 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:39:52,402 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:39:52,404 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:39:52,404 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:39:52,410 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:39:52,411 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:39:52" (1/1) ... [2023-11-19 07:39:52,412 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25c71593 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:52, skipping insertion in model container [2023-11-19 07:39:52,413 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:39:52" (1/1) ... [2023-11-19 07:39:52,510 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:39:52,896 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_6e8ab289-718c-43ae-b2ec-a2c19cff5f3d/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[15169,15182] [2023-11-19 07:39:52,913 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_6e8ab289-718c-43ae-b2ec-a2c19cff5f3d/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[15816,15829] [2023-11-19 07:39:52,933 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8ab289-718c-43ae-b2ec-a2c19cff5f3d/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[17200,17213] [2023-11-19 07:39:52,948 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8ab289-718c-43ae-b2ec-a2c19cff5f3d/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[18176,18189] [2023-11-19 07:39:53,030 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_6e8ab289-718c-43ae-b2ec-a2c19cff5f3d/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[27541,27554] [2023-11-19 07:39:53,099 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:39:53,114 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:39:53,386 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_6e8ab289-718c-43ae-b2ec-a2c19cff5f3d/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[15169,15182] [2023-11-19 07:39:53,412 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_6e8ab289-718c-43ae-b2ec-a2c19cff5f3d/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[15816,15829] [2023-11-19 07:39:53,429 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_6e8ab289-718c-43ae-b2ec-a2c19cff5f3d/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[17200,17213] [2023-11-19 07:39:53,452 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_6e8ab289-718c-43ae-b2ec-a2c19cff5f3d/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[18176,18189] [2023-11-19 07:39:53,578 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_6e8ab289-718c-43ae-b2ec-a2c19cff5f3d/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[27541,27554] [2023-11-19 07:39:53,638 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:39:53,668 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:39:53,668 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:53 WrapperNode [2023-11-19 07:39:53,669 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:39:53,672 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:39:53,672 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:39:53,672 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:39:53,681 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:53" (1/1) ... [2023-11-19 07:39:53,717 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:53" (1/1) ... [2023-11-19 07:39:53,819 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1751 [2023-11-19 07:39:53,823 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:39:53,824 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:39:53,825 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:39:53,825 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:39:53,835 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:53" (1/1) ... [2023-11-19 07:39:53,835 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:53" (1/1) ... [2023-11-19 07:39:53,844 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:53" (1/1) ... [2023-11-19 07:39:53,845 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:53" (1/1) ... [2023-11-19 07:39:53,874 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:53" (1/1) ... [2023-11-19 07:39:53,887 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:53" (1/1) ... [2023-11-19 07:39:53,897 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:53" (1/1) ... [2023-11-19 07:39:53,905 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:53" (1/1) ... [2023-11-19 07:39:53,925 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:39:53,926 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:39:53,927 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:39:53,927 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:39:53,928 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:53" (1/1) ... [2023-11-19 07:39:53,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:39:53,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8ab289-718c-43ae-b2ec-a2c19cff5f3d/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:39:53,974 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8ab289-718c-43ae-b2ec-a2c19cff5f3d/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:39:54,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e8ab289-718c-43ae-b2ec-a2c19cff5f3d/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:39:54,024 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:39:54,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:39:54,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:39:54,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:39:54,216 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:39:54,218 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:39:55,791 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:39:55,808 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:39:55,808 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 07:39:55,822 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:39:55 BoogieIcfgContainer [2023-11-19 07:39:55,822 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:39:55,825 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:39:55,825 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:39:55,828 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:39:55,829 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:39:52" (1/3) ... [2023-11-19 07:39:55,830 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@252b239a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:39:55, skipping insertion in model container [2023-11-19 07:39:55,830 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:53" (2/3) ... [2023-11-19 07:39:55,832 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@252b239a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:39:55, skipping insertion in model container [2023-11-19 07:39:55,833 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:39:55" (3/3) ... [2023-11-19 07:39:55,834 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.3.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2023-11-19 07:39:55,856 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:39:55,856 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2023-11-19 07:39:55,946 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:39:55,955 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@e654474, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:39:55,956 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-11-19 07:39:55,966 INFO L276 IsEmpty]: Start isEmpty. Operand has 417 states, 405 states have (on average 1.8098765432098765) internal successors, (733), 416 states have internal predecessors, (733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:39:55,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-11-19 07:39:55,986 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:39:55,987 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:39:55,988 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-11-19 07:39:55,993 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:55,994 INFO L85 PathProgramCache]: Analyzing trace with hash -430745720, now seen corresponding path program 1 times [2023-11-19 07:39:56,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:39:56,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592483641] [2023-11-19 07:39:56,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:56,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:39:56,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:56,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:39:56,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:39:56,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592483641] [2023-11-19 07:39:56,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592483641] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:39:56,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:39:56,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:39:56,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290589002] [2023-11-19 07:39:56,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:39:56,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:39:56,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:39:56,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:39:56,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:39:56,717 INFO L87 Difference]: Start difference. First operand has 417 states, 405 states have (on average 1.8098765432098765) internal successors, (733), 416 states have internal predecessors, (733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:39:56,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:39:56,968 INFO L93 Difference]: Finished difference Result 771 states and 1326 transitions. [2023-11-19 07:39:56,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:39:56,971 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 0 states have call successors, (0), 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 147 [2023-11-19 07:39:56,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:39:57,001 INFO L225 Difference]: With dead ends: 771 [2023-11-19 07:39:57,001 INFO L226 Difference]: Without dead ends: 594 [2023-11-19 07:39:57,007 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 [2023-11-19 07:39:57,013 INFO L413 NwaCegarLoop]: 850 mSDtfsCounter, 434 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 434 SdHoareTripleChecker+Valid, 1316 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:39:57,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [434 Valid, 1316 Invalid, 83 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:39:57,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2023-11-19 07:39:57,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 592. [2023-11-19 07:39:57,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 592 states, 587 states have (on average 1.4514480408858603) internal successors, (852), 591 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:39:57,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 852 transitions. [2023-11-19 07:39:57,109 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 852 transitions. Word has length 147 [2023-11-19 07:39:57,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:39:57,110 INFO L495 AbstractCegarLoop]: Abstraction has 592 states and 852 transitions. [2023-11-19 07:39:57,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:39:57,111 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 852 transitions. [2023-11-19 07:39:57,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-11-19 07:39:57,116 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:39:57,116 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:39:57,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:39:57,117 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-11-19 07:39:57,117 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:57,118 INFO L85 PathProgramCache]: Analyzing trace with hash -734514301, now seen corresponding path program 1 times [2023-11-19 07:39:57,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:39:57,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114731447] [2023-11-19 07:39:57,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:57,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:39:57,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:57,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:39:57,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:39:57,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114731447] [2023-11-19 07:39:57,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114731447] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:39:57,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:39:57,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:39:57,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150876838] [2023-11-19 07:39:57,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:39:57,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:39:57,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:39:57,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:39:57,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:39:57,468 INFO L87 Difference]: Start difference. First operand 592 states and 852 transitions. Second operand has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:39:57,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:39:57,604 INFO L93 Difference]: Finished difference Result 1205 states and 1780 transitions. [2023-11-19 07:39:57,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:39:57,605 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 0 states have call successors, (0), 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 147 [2023-11-19 07:39:57,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:39:57,611 INFO L225 Difference]: With dead ends: 1205 [2023-11-19 07:39:57,612 INFO L226 Difference]: Without dead ends: 984 [2023-11-19 07:39:57,614 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 [2023-11-19 07:39:57,616 INFO L413 NwaCegarLoop]: 678 mSDtfsCounter, 343 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 1056 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:39:57,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [343 Valid, 1056 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:39:57,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 984 states. [2023-11-19 07:39:57,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 984 to 982. [2023-11-19 07:39:57,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 982 states, 977 states have (on average 1.4667349027635619) internal successors, (1433), 981 states have internal predecessors, (1433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:39:57,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 982 states to 982 states and 1433 transitions. [2023-11-19 07:39:57,666 INFO L78 Accepts]: Start accepts. Automaton has 982 states and 1433 transitions. Word has length 147 [2023-11-19 07:39:57,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:39:57,667 INFO L495 AbstractCegarLoop]: Abstraction has 982 states and 1433 transitions. [2023-11-19 07:39:57,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:39:57,667 INFO L276 IsEmpty]: Start isEmpty. Operand 982 states and 1433 transitions. [2023-11-19 07:39:57,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-11-19 07:39:57,671 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:39:57,672 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:39:57,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:39:57,672 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-11-19 07:39:57,673 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:57,673 INFO L85 PathProgramCache]: Analyzing trace with hash -734945277, now seen corresponding path program 1 times [2023-11-19 07:39:57,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:39:57,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081478184] [2023-11-19 07:39:57,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:57,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:39:57,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:58,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:39:58,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:39:58,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081478184] [2023-11-19 07:39:58,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081478184] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:39:58,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:39:58,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:39:58,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465326100] [2023-11-19 07:39:58,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:39:58,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:39:58,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:39:58,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:39:58,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:39:58,348 INFO L87 Difference]: Start difference. First operand 982 states and 1433 transitions. Second operand has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:39:58,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:39:58,474 INFO L93 Difference]: Finished difference Result 2891 states and 4204 transitions. [2023-11-19 07:39:58,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:39:58,475 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 0 states have call successors, (0), 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 147 [2023-11-19 07:39:58,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:39:58,485 INFO L225 Difference]: With dead ends: 2891 [2023-11-19 07:39:58,486 INFO L226 Difference]: Without dead ends: 1918 [2023-11-19 07:39:58,487 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:39:58,489 INFO L413 NwaCegarLoop]: 867 mSDtfsCounter, 1309 mSDsluCounter, 530 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1309 SdHoareTripleChecker+Valid, 1397 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:39:58,489 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1309 Valid, 1397 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:39:58,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1918 states. [2023-11-19 07:39:58,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1918 to 1870. [2023-11-19 07:39:58,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1870 states, 1865 states have (on average 1.4552278820375335) internal successors, (2714), 1869 states have internal predecessors, (2714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:39:58,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1870 states to 1870 states and 2714 transitions. [2023-11-19 07:39:58,546 INFO L78 Accepts]: Start accepts. Automaton has 1870 states and 2714 transitions. Word has length 147 [2023-11-19 07:39:58,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:39:58,546 INFO L495 AbstractCegarLoop]: Abstraction has 1870 states and 2714 transitions. [2023-11-19 07:39:58,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:39:58,547 INFO L276 IsEmpty]: Start isEmpty. Operand 1870 states and 2714 transitions. [2023-11-19 07:39:58,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-11-19 07:39:58,551 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:39:58,551 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:39:58,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:39:58,552 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-11-19 07:39:58,552 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:58,552 INFO L85 PathProgramCache]: Analyzing trace with hash -464497969, now seen corresponding path program 1 times [2023-11-19 07:39:58,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:39:58,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40943988] [2023-11-19 07:39:58,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:58,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:39:58,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:58,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:39:58,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:39:58,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40943988] [2023-11-19 07:39:58,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40943988] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:39:58,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:39:58,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:39:58,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215048815] [2023-11-19 07:39:58,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:39:58,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:39:58,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:39:58,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:39:58,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:39:58,655 INFO L87 Difference]: Start difference. First operand 1870 states and 2714 transitions. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:39:58,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:39:58,712 INFO L93 Difference]: Finished difference Result 5572 states and 8080 transitions. [2023-11-19 07:39:58,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:39:58,713 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 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 148 [2023-11-19 07:39:58,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:39:58,733 INFO L225 Difference]: With dead ends: 5572 [2023-11-19 07:39:58,733 INFO L226 Difference]: Without dead ends: 3730 [2023-11-19 07:39:58,736 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 [2023-11-19 07:39:58,738 INFO L413 NwaCegarLoop]: 1138 mSDtfsCounter, 565 mSDsluCounter, 567 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 565 SdHoareTripleChecker+Valid, 1705 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:39:58,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [565 Valid, 1705 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:39:58,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3730 states. [2023-11-19 07:39:58,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3730 to 1872. [2023-11-19 07:39:58,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1872 states, 1867 states have (on average 1.4547402249598287) internal successors, (2716), 1871 states have internal predecessors, (2716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:39:58,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1872 states to 1872 states and 2716 transitions. [2023-11-19 07:39:58,811 INFO L78 Accepts]: Start accepts. Automaton has 1872 states and 2716 transitions. Word has length 148 [2023-11-19 07:39:58,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:39:58,811 INFO L495 AbstractCegarLoop]: Abstraction has 1872 states and 2716 transitions. [2023-11-19 07:39:58,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:39:58,812 INFO L276 IsEmpty]: Start isEmpty. Operand 1872 states and 2716 transitions. [2023-11-19 07:39:58,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-11-19 07:39:58,815 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:39:58,816 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:39:58,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:39:58,816 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-11-19 07:39:58,817 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:58,817 INFO L85 PathProgramCache]: Analyzing trace with hash -1286115900, now seen corresponding path program 1 times [2023-11-19 07:39:58,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:39:58,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949929063] [2023-11-19 07:39:58,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:58,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:39:58,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:58,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:39:58,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:39:58,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949929063] [2023-11-19 07:39:58,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949929063] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:39:58,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:39:58,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:39:58,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688046021] [2023-11-19 07:39:58,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:39:58,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:39:58,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:39:58,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:39:58,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:39:58,963 INFO L87 Difference]: Start difference. First operand 1872 states and 2716 transitions. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:39:59,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:39:59,064 INFO L93 Difference]: Finished difference Result 4914 states and 7110 transitions. [2023-11-19 07:39:59,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:39:59,064 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 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 149 [2023-11-19 07:39:59,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:39:59,082 INFO L225 Difference]: With dead ends: 4914 [2023-11-19 07:39:59,082 INFO L226 Difference]: Without dead ends: 3235 [2023-11-19 07:39:59,087 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 [2023-11-19 07:39:59,089 INFO L413 NwaCegarLoop]: 1049 mSDtfsCounter, 500 mSDsluCounter, 526 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 500 SdHoareTripleChecker+Valid, 1575 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:39:59,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [500 Valid, 1575 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:39:59,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3235 states. [2023-11-19 07:39:59,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3235 to 3187. [2023-11-19 07:39:59,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3187 states, 3182 states have (on average 1.4343180389692018) internal successors, (4564), 3186 states have internal predecessors, (4564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:39:59,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3187 states to 3187 states and 4564 transitions. [2023-11-19 07:39:59,182 INFO L78 Accepts]: Start accepts. Automaton has 3187 states and 4564 transitions. Word has length 149 [2023-11-19 07:39:59,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:39:59,182 INFO L495 AbstractCegarLoop]: Abstraction has 3187 states and 4564 transitions. [2023-11-19 07:39:59,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:39:59,183 INFO L276 IsEmpty]: Start isEmpty. Operand 3187 states and 4564 transitions. [2023-11-19 07:39:59,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-11-19 07:39:59,188 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:39:59,189 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:39:59,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 07:39:59,189 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-11-19 07:39:59,190 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:59,190 INFO L85 PathProgramCache]: Analyzing trace with hash 1559353287, now seen corresponding path program 1 times [2023-11-19 07:39:59,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:39:59,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122406776] [2023-11-19 07:39:59,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:59,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:39:59,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:59,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:39:59,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:39:59,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122406776] [2023-11-19 07:39:59,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122406776] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:39:59,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:39:59,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:39:59,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128332201] [2023-11-19 07:39:59,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:39:59,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:39:59,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:39:59,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:39:59,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:39:59,722 INFO L87 Difference]: Start difference. First operand 3187 states and 4564 transitions. Second operand has 5 states, 5 states have (on average 29.8) internal successors, (149), 5 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:39:59,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:39:59,881 INFO L93 Difference]: Finished difference Result 9205 states and 13143 transitions. [2023-11-19 07:39:59,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:39:59,882 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 5 states have internal predecessors, (149), 0 states have call successors, (0), 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 149 [2023-11-19 07:39:59,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:39:59,912 INFO L225 Difference]: With dead ends: 9205 [2023-11-19 07:39:59,913 INFO L226 Difference]: Without dead ends: 6032 [2023-11-19 07:39:59,917 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:39:59,918 INFO L413 NwaCegarLoop]: 1000 mSDtfsCounter, 1189 mSDsluCounter, 1044 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1189 SdHoareTripleChecker+Valid, 2044 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:39:59,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1189 Valid, 2044 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:39:59,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6032 states. [2023-11-19 07:40:00,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6032 to 5998. [2023-11-19 07:40:00,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5998 states, 5993 states have (on average 1.418154513599199) internal successors, (8499), 5997 states have internal predecessors, (8499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:00,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5998 states to 5998 states and 8499 transitions. [2023-11-19 07:40:00,170 INFO L78 Accepts]: Start accepts. Automaton has 5998 states and 8499 transitions. Word has length 149 [2023-11-19 07:40:00,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:40:00,170 INFO L495 AbstractCegarLoop]: Abstraction has 5998 states and 8499 transitions. [2023-11-19 07:40:00,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 5 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:00,171 INFO L276 IsEmpty]: Start isEmpty. Operand 5998 states and 8499 transitions. [2023-11-19 07:40:00,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-11-19 07:40:00,180 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:40:00,181 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:40:00,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 07:40:00,181 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-11-19 07:40:00,182 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:00,182 INFO L85 PathProgramCache]: Analyzing trace with hash 978797474, now seen corresponding path program 1 times [2023-11-19 07:40:00,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:00,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525813255] [2023-11-19 07:40:00,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:00,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:00,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:00,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:40:00,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:40:00,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525813255] [2023-11-19 07:40:00,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525813255] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:40:00,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:40:00,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:40:00,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576730098] [2023-11-19 07:40:00,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:40:00,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:40:00,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:40:00,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:40:00,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:40:00,551 INFO L87 Difference]: Start difference. First operand 5998 states and 8499 transitions. Second operand has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:00,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:40:00,802 INFO L93 Difference]: Finished difference Result 17523 states and 24720 transitions. [2023-11-19 07:40:00,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:40:00,803 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 0 states have call successors, (0), 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 149 [2023-11-19 07:40:00,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:40:00,868 INFO L225 Difference]: With dead ends: 17523 [2023-11-19 07:40:00,869 INFO L226 Difference]: Without dead ends: 11581 [2023-11-19 07:40:00,877 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:40:00,878 INFO L413 NwaCegarLoop]: 992 mSDtfsCounter, 1139 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1139 SdHoareTripleChecker+Valid, 1516 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:40:00,879 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1139 Valid, 1516 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:40:00,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11581 states. [2023-11-19 07:40:01,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11581 to 11521. [2023-11-19 07:40:01,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11521 states, 11516 states have (on average 1.398923237235151) internal successors, (16110), 11520 states have internal predecessors, (16110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:01,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11521 states to 11521 states and 16110 transitions. [2023-11-19 07:40:01,272 INFO L78 Accepts]: Start accepts. Automaton has 11521 states and 16110 transitions. Word has length 149 [2023-11-19 07:40:01,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:40:01,272 INFO L495 AbstractCegarLoop]: Abstraction has 11521 states and 16110 transitions. [2023-11-19 07:40:01,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:01,273 INFO L276 IsEmpty]: Start isEmpty. Operand 11521 states and 16110 transitions. [2023-11-19 07:40:01,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-11-19 07:40:01,290 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:40:01,290 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:40:01,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 07:40:01,291 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-11-19 07:40:01,291 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:01,291 INFO L85 PathProgramCache]: Analyzing trace with hash -728227058, now seen corresponding path program 1 times [2023-11-19 07:40:01,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:01,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558777116] [2023-11-19 07:40:01,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:01,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:01,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:01,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:40:01,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:40:01,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558777116] [2023-11-19 07:40:01,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558777116] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:40:01,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:40:01,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:40:01,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696562707] [2023-11-19 07:40:01,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:40:01,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:40:01,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:40:01,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:40:01,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:40:01,390 INFO L87 Difference]: Start difference. First operand 11521 states and 16110 transitions. Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:01,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:40:01,697 INFO L93 Difference]: Finished difference Result 34411 states and 48097 transitions. [2023-11-19 07:40:01,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:40:01,697 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 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 150 [2023-11-19 07:40:01,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:40:01,752 INFO L225 Difference]: With dead ends: 34411 [2023-11-19 07:40:01,753 INFO L226 Difference]: Without dead ends: 22981 [2023-11-19 07:40:01,769 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 [2023-11-19 07:40:01,770 INFO L413 NwaCegarLoop]: 706 mSDtfsCounter, 551 mSDsluCounter, 567 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 551 SdHoareTripleChecker+Valid, 1273 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:40:01,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [551 Valid, 1273 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:40:01,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22981 states. [2023-11-19 07:40:02,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22981 to 11531. [2023-11-19 07:40:02,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11531 states, 11526 states have (on average 1.398577129967031) internal successors, (16120), 11530 states have internal predecessors, (16120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:02,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11531 states to 11531 states and 16120 transitions. [2023-11-19 07:40:02,278 INFO L78 Accepts]: Start accepts. Automaton has 11531 states and 16120 transitions. Word has length 150 [2023-11-19 07:40:02,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:40:02,278 INFO L495 AbstractCegarLoop]: Abstraction has 11531 states and 16120 transitions. [2023-11-19 07:40:02,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:02,279 INFO L276 IsEmpty]: Start isEmpty. Operand 11531 states and 16120 transitions. [2023-11-19 07:40:02,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-11-19 07:40:02,298 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:40:02,298 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:40:02,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-19 07:40:02,298 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-11-19 07:40:02,299 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:02,299 INFO L85 PathProgramCache]: Analyzing trace with hash -478461247, now seen corresponding path program 1 times [2023-11-19 07:40:02,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:02,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962089795] [2023-11-19 07:40:02,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:02,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:02,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:02,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:40:02,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:40:02,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962089795] [2023-11-19 07:40:02,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962089795] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:40:02,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:40:02,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:40:02,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144261179] [2023-11-19 07:40:02,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:40:02,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:40:02,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:40:02,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:40:02,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:40:02,727 INFO L87 Difference]: Start difference. First operand 11531 states and 16120 transitions. Second operand has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:02,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:40:02,966 INFO L93 Difference]: Finished difference Result 33583 states and 46755 transitions. [2023-11-19 07:40:02,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:40:02,967 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 0 states have call successors, (0), 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 151 [2023-11-19 07:40:02,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:40:03,011 INFO L225 Difference]: With dead ends: 33583 [2023-11-19 07:40:03,011 INFO L226 Difference]: Without dead ends: 22153 [2023-11-19 07:40:03,027 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:40:03,031 INFO L413 NwaCegarLoop]: 949 mSDtfsCounter, 1167 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1167 SdHoareTripleChecker+Valid, 1473 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:40:03,032 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1167 Valid, 1473 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:40:03,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22153 states. [2023-11-19 07:40:03,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22153 to 22093. [2023-11-19 07:40:03,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22093 states, 22088 states have (on average 1.3784860557768925) internal successors, (30448), 22092 states have internal predecessors, (30448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:03,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22093 states to 22093 states and 30448 transitions. [2023-11-19 07:40:03,600 INFO L78 Accepts]: Start accepts. Automaton has 22093 states and 30448 transitions. Word has length 151 [2023-11-19 07:40:03,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:40:03,600 INFO L495 AbstractCegarLoop]: Abstraction has 22093 states and 30448 transitions. [2023-11-19 07:40:03,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:03,601 INFO L276 IsEmpty]: Start isEmpty. Operand 22093 states and 30448 transitions. [2023-11-19 07:40:03,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-11-19 07:40:03,637 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:40:03,637 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:40:03,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-19 07:40:03,638 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-11-19 07:40:03,643 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:03,644 INFO L85 PathProgramCache]: Analyzing trace with hash 2137159373, now seen corresponding path program 1 times [2023-11-19 07:40:03,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:03,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539781660] [2023-11-19 07:40:03,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:03,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:03,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:03,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:40:03,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:40:03,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539781660] [2023-11-19 07:40:03,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539781660] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:40:03,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:40:03,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:40:03,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111364427] [2023-11-19 07:40:03,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:40:03,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:40:03,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:40:03,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:40:03,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:40:03,761 INFO L87 Difference]: Start difference. First operand 22093 states and 30448 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:04,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:40:04,044 INFO L93 Difference]: Finished difference Result 65067 states and 89796 transitions. [2023-11-19 07:40:04,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:40:04,045 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 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 152 [2023-11-19 07:40:04,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:40:04,145 INFO L225 Difference]: With dead ends: 65067 [2023-11-19 07:40:04,145 INFO L226 Difference]: Without dead ends: 43905 [2023-11-19 07:40:04,175 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 [2023-11-19 07:40:04,176 INFO L413 NwaCegarLoop]: 1110 mSDtfsCounter, 537 mSDsluCounter, 567 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 537 SdHoareTripleChecker+Valid, 1677 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:40:04,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [537 Valid, 1677 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:40:04,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43905 states. [2023-11-19 07:40:05,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43905 to 22113. [2023-11-19 07:40:05,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22113 states, 22108 states have (on average 1.3781436584041975) internal successors, (30468), 22112 states have internal predecessors, (30468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:05,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22113 states to 22113 states and 30468 transitions. [2023-11-19 07:40:05,088 INFO L78 Accepts]: Start accepts. Automaton has 22113 states and 30468 transitions. Word has length 152 [2023-11-19 07:40:05,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:40:05,088 INFO L495 AbstractCegarLoop]: Abstraction has 22113 states and 30468 transitions. [2023-11-19 07:40:05,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:05,089 INFO L276 IsEmpty]: Start isEmpty. Operand 22113 states and 30468 transitions. [2023-11-19 07:40:05,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-11-19 07:40:05,131 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:40:05,131 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:40:05,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-19 07:40:05,131 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-11-19 07:40:05,132 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:05,132 INFO L85 PathProgramCache]: Analyzing trace with hash -2021361859, now seen corresponding path program 1 times [2023-11-19 07:40:05,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:05,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921533193] [2023-11-19 07:40:05,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:05,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:05,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:05,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:40:05,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:40:05,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921533193] [2023-11-19 07:40:05,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921533193] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:40:05,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:40:05,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:40:05,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880032843] [2023-11-19 07:40:05,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:40:05,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:40:05,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:40:05,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:40:05,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:40:05,593 INFO L87 Difference]: Start difference. First operand 22113 states and 30468 transitions. Second operand has 5 states, 5 states have (on average 30.6) internal successors, (153), 5 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:05,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:40:05,865 INFO L93 Difference]: Finished difference Result 44957 states and 61780 transitions. [2023-11-19 07:40:05,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:40:05,866 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 5 states have internal predecessors, (153), 0 states have call successors, (0), 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 153 [2023-11-19 07:40:05,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:40:05,916 INFO L225 Difference]: With dead ends: 44957 [2023-11-19 07:40:05,917 INFO L226 Difference]: Without dead ends: 23069 [2023-11-19 07:40:05,937 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:40:05,938 INFO L413 NwaCegarLoop]: 905 mSDtfsCounter, 1057 mSDsluCounter, 1040 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1057 SdHoareTripleChecker+Valid, 1945 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:40:05,938 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1057 Valid, 1945 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:40:05,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23069 states. [2023-11-19 07:40:06,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23069 to 22635. [2023-11-19 07:40:06,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22635 states, 22630 states have (on average 1.372470172337605) internal successors, (31059), 22634 states have internal predecessors, (31059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:06,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22635 states to 22635 states and 31059 transitions. [2023-11-19 07:40:06,519 INFO L78 Accepts]: Start accepts. Automaton has 22635 states and 31059 transitions. Word has length 153 [2023-11-19 07:40:06,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:40:06,519 INFO L495 AbstractCegarLoop]: Abstraction has 22635 states and 31059 transitions. [2023-11-19 07:40:06,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 5 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:06,520 INFO L276 IsEmpty]: Start isEmpty. Operand 22635 states and 31059 transitions. [2023-11-19 07:40:06,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-11-19 07:40:06,554 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:40:06,554 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:40:06,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-19 07:40:06,555 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-11-19 07:40:06,555 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:06,556 INFO L85 PathProgramCache]: Analyzing trace with hash 237133152, now seen corresponding path program 1 times [2023-11-19 07:40:06,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:06,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018256980] [2023-11-19 07:40:06,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:06,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:06,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:07,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:40:07,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:40:07,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018256980] [2023-11-19 07:40:07,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018256980] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:40:07,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:40:07,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:40:07,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744024273] [2023-11-19 07:40:07,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:40:07,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:40:07,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:40:07,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:40:07,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:40:07,071 INFO L87 Difference]: Start difference. First operand 22635 states and 31059 transitions. Second operand has 4 states, 4 states have (on average 38.25) internal successors, (153), 4 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:07,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:40:07,227 INFO L93 Difference]: Finished difference Result 38799 states and 53292 transitions. [2023-11-19 07:40:07,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:40:07,229 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.25) internal successors, (153), 4 states have internal predecessors, (153), 0 states have call successors, (0), 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 153 [2023-11-19 07:40:07,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:40:07,263 INFO L225 Difference]: With dead ends: 38799 [2023-11-19 07:40:07,264 INFO L226 Difference]: Without dead ends: 16342 [2023-11-19 07:40:07,278 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:40:07,278 INFO L413 NwaCegarLoop]: 617 mSDtfsCounter, 65 mSDsluCounter, 1139 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 1756 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:40:07,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 1756 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:40:07,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16342 states. [2023-11-19 07:40:07,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16342 to 16342. [2023-11-19 07:40:07,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16342 states, 16337 states have (on average 1.3733243557568708) internal successors, (22436), 16341 states have internal predecessors, (22436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:07,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16342 states to 16342 states and 22436 transitions. [2023-11-19 07:40:07,625 INFO L78 Accepts]: Start accepts. Automaton has 16342 states and 22436 transitions. Word has length 153 [2023-11-19 07:40:07,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:40:07,625 INFO L495 AbstractCegarLoop]: Abstraction has 16342 states and 22436 transitions. [2023-11-19 07:40:07,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.25) internal successors, (153), 4 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:07,626 INFO L276 IsEmpty]: Start isEmpty. Operand 16342 states and 22436 transitions. [2023-11-19 07:40:07,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2023-11-19 07:40:07,649 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:40:07,650 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:40:07,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-19 07:40:07,650 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-11-19 07:40:07,651 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:07,651 INFO L85 PathProgramCache]: Analyzing trace with hash 194231239, now seen corresponding path program 1 times [2023-11-19 07:40:07,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:07,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265063439] [2023-11-19 07:40:07,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:07,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:07,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:07,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:40:07,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:40:07,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265063439] [2023-11-19 07:40:07,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265063439] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:40:07,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:40:07,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:40:07,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851539381] [2023-11-19 07:40:07,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:40:07,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:40:07,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:40:07,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:40:07,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:40:07,792 INFO L87 Difference]: Start difference. First operand 16342 states and 22436 transitions. Second operand has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:07,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:40:07,991 INFO L93 Difference]: Finished difference Result 37452 states and 52501 transitions. [2023-11-19 07:40:07,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:40:07,991 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 0 states have call successors, (0), 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 156 [2023-11-19 07:40:07,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:40:08,043 INFO L225 Difference]: With dead ends: 37452 [2023-11-19 07:40:08,043 INFO L226 Difference]: Without dead ends: 22056 [2023-11-19 07:40:08,057 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 [2023-11-19 07:40:08,059 INFO L413 NwaCegarLoop]: 697 mSDtfsCounter, 225 mSDsluCounter, 457 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 1154 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:40:08,059 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 1154 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:40:08,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22056 states. [2023-11-19 07:40:08,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22056 to 21574. [2023-11-19 07:40:08,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21574 states, 21569 states have (on average 1.4031248551161388) internal successors, (30264), 21573 states have internal predecessors, (30264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:08,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21574 states to 21574 states and 30264 transitions. [2023-11-19 07:40:08,546 INFO L78 Accepts]: Start accepts. Automaton has 21574 states and 30264 transitions. Word has length 156 [2023-11-19 07:40:08,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:40:08,546 INFO L495 AbstractCegarLoop]: Abstraction has 21574 states and 30264 transitions. [2023-11-19 07:40:08,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:08,547 INFO L276 IsEmpty]: Start isEmpty. Operand 21574 states and 30264 transitions. [2023-11-19 07:40:08,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-11-19 07:40:08,563 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:40:08,563 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:40:08,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-19 07:40:08,564 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-11-19 07:40:08,564 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:08,565 INFO L85 PathProgramCache]: Analyzing trace with hash 1124301261, now seen corresponding path program 1 times [2023-11-19 07:40:08,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:08,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754276380] [2023-11-19 07:40:08,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:08,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:08,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:08,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:40:08,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:40:08,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754276380] [2023-11-19 07:40:08,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754276380] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:40:08,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:40:08,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:40:08,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355115794] [2023-11-19 07:40:08,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:40:08,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:40:08,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:40:08,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:40:08,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:40:08,722 INFO L87 Difference]: Start difference. First operand 21574 states and 30264 transitions. Second operand has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:09,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:40:09,032 INFO L93 Difference]: Finished difference Result 57602 states and 80724 transitions. [2023-11-19 07:40:09,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:40:09,033 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 159 [2023-11-19 07:40:09,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:40:09,097 INFO L225 Difference]: With dead ends: 57602 [2023-11-19 07:40:09,097 INFO L226 Difference]: Without dead ends: 37506 [2023-11-19 07:40:09,118 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 [2023-11-19 07:40:09,118 INFO L413 NwaCegarLoop]: 1034 mSDtfsCounter, 484 mSDsluCounter, 512 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 484 SdHoareTripleChecker+Valid, 1546 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:40:09,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [484 Valid, 1546 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:40:09,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37506 states. [2023-11-19 07:40:09,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37506 to 37476. [2023-11-19 07:40:09,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37476 states, 37471 states have (on average 1.3777054255290757) internal successors, (51624), 37475 states have internal predecessors, (51624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:10,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37476 states to 37476 states and 51624 transitions. [2023-11-19 07:40:10,182 INFO L78 Accepts]: Start accepts. Automaton has 37476 states and 51624 transitions. Word has length 159 [2023-11-19 07:40:10,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:40:10,183 INFO L495 AbstractCegarLoop]: Abstraction has 37476 states and 51624 transitions. [2023-11-19 07:40:10,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:10,196 INFO L276 IsEmpty]: Start isEmpty. Operand 37476 states and 51624 transitions. [2023-11-19 07:40:10,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-11-19 07:40:10,223 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:40:10,223 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:40:10,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-19 07:40:10,224 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-11-19 07:40:10,224 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:10,224 INFO L85 PathProgramCache]: Analyzing trace with hash -983486256, now seen corresponding path program 1 times [2023-11-19 07:40:10,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:10,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123931000] [2023-11-19 07:40:10,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:10,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:10,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:10,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:40:10,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:40:10,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123931000] [2023-11-19 07:40:10,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123931000] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:40:10,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:40:10,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:40:10,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256829991] [2023-11-19 07:40:10,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:40:10,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:40:10,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:40:10,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:40:10,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:40:10,440 INFO L87 Difference]: Start difference. First operand 37476 states and 51624 transitions. Second operand has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:11,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:40:11,159 INFO L93 Difference]: Finished difference Result 73528 states and 101683 transitions. [2023-11-19 07:40:11,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:40:11,160 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 159 [2023-11-19 07:40:11,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:40:11,220 INFO L225 Difference]: With dead ends: 73528 [2023-11-19 07:40:11,220 INFO L226 Difference]: Without dead ends: 37476 [2023-11-19 07:40:11,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:40:11,250 INFO L413 NwaCegarLoop]: 450 mSDtfsCounter, 1539 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1539 SdHoareTripleChecker+Valid, 542 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-19 07:40:11,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1539 Valid, 542 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-19 07:40:11,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37476 states. [2023-11-19 07:40:11,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37476 to 37476. [2023-11-19 07:40:11,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37476 states, 37471 states have (on average 1.3708734754877105) internal successors, (51368), 37475 states have internal predecessors, (51368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:11,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37476 states to 37476 states and 51368 transitions. [2023-11-19 07:40:11,998 INFO L78 Accepts]: Start accepts. Automaton has 37476 states and 51368 transitions. Word has length 159 [2023-11-19 07:40:11,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:40:11,998 INFO L495 AbstractCegarLoop]: Abstraction has 37476 states and 51368 transitions. [2023-11-19 07:40:11,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:11,998 INFO L276 IsEmpty]: Start isEmpty. Operand 37476 states and 51368 transitions. [2023-11-19 07:40:12,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-11-19 07:40:12,017 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:40:12,018 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:40:12,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-19 07:40:12,019 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-11-19 07:40:12,019 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:12,020 INFO L85 PathProgramCache]: Analyzing trace with hash -378867883, now seen corresponding path program 1 times [2023-11-19 07:40:12,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:12,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979229574] [2023-11-19 07:40:12,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:12,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:12,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:12,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:40:12,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:40:12,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979229574] [2023-11-19 07:40:12,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979229574] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:40:12,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:40:12,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:40:12,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582827553] [2023-11-19 07:40:12,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:40:12,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:40:12,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:40:12,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:40:12,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:40:12,565 INFO L87 Difference]: Start difference. First operand 37476 states and 51368 transitions. Second operand has 4 states, 4 states have (on average 39.75) internal successors, (159), 4 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:12,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:40:12,797 INFO L93 Difference]: Finished difference Result 61679 states and 84721 transitions. [2023-11-19 07:40:12,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:40:12,797 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.75) internal successors, (159), 4 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 159 [2023-11-19 07:40:12,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:40:12,835 INFO L225 Difference]: With dead ends: 61679 [2023-11-19 07:40:12,835 INFO L226 Difference]: Without dead ends: 33299 [2023-11-19 07:40:12,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:40:12,856 INFO L413 NwaCegarLoop]: 603 mSDtfsCounter, 53 mSDsluCounter, 1124 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 1727 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:40:12,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 1727 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:40:12,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33299 states. [2023-11-19 07:40:13,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33299 to 33299. [2023-11-19 07:40:13,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33299 states, 33294 states have (on average 1.3720790532828737) internal successors, (45682), 33298 states have internal predecessors, (45682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:13,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33299 states to 33299 states and 45682 transitions. [2023-11-19 07:40:13,677 INFO L78 Accepts]: Start accepts. Automaton has 33299 states and 45682 transitions. Word has length 159 [2023-11-19 07:40:13,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:40:13,678 INFO L495 AbstractCegarLoop]: Abstraction has 33299 states and 45682 transitions. [2023-11-19 07:40:13,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.75) internal successors, (159), 4 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:13,678 INFO L276 IsEmpty]: Start isEmpty. Operand 33299 states and 45682 transitions. [2023-11-19 07:40:13,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-11-19 07:40:13,703 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:40:13,703 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:40:13,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-19 07:40:13,704 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-11-19 07:40:13,704 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:13,704 INFO L85 PathProgramCache]: Analyzing trace with hash 2137792983, now seen corresponding path program 1 times [2023-11-19 07:40:13,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:13,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259586809] [2023-11-19 07:40:13,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:13,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:13,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:13,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:40:13,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:40:13,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259586809] [2023-11-19 07:40:13,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259586809] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:40:13,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:40:13,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:40:13,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362076780] [2023-11-19 07:40:13,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:40:13,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:40:13,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:40:13,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:40:13,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:40:13,837 INFO L87 Difference]: Start difference. First operand 33299 states and 45682 transitions. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:14,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:40:14,138 INFO L93 Difference]: Finished difference Result 77408 states and 107250 transitions. [2023-11-19 07:40:14,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:40:14,139 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 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 163 [2023-11-19 07:40:14,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:40:14,223 INFO L225 Difference]: With dead ends: 77408 [2023-11-19 07:40:14,223 INFO L226 Difference]: Without dead ends: 51355 [2023-11-19 07:40:14,251 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 [2023-11-19 07:40:14,252 INFO L413 NwaCegarLoop]: 788 mSDtfsCounter, 336 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 1201 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:40:14,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [336 Valid, 1201 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:40:14,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51355 states. [2023-11-19 07:40:15,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51355 to 45335. [2023-11-19 07:40:15,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45335 states, 45330 states have (on average 1.3916170306640194) internal successors, (63082), 45334 states have internal predecessors, (63082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:15,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45335 states to 45335 states and 63082 transitions. [2023-11-19 07:40:15,320 INFO L78 Accepts]: Start accepts. Automaton has 45335 states and 63082 transitions. Word has length 163 [2023-11-19 07:40:15,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:40:15,320 INFO L495 AbstractCegarLoop]: Abstraction has 45335 states and 63082 transitions. [2023-11-19 07:40:15,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:15,321 INFO L276 IsEmpty]: Start isEmpty. Operand 45335 states and 63082 transitions. [2023-11-19 07:40:15,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-11-19 07:40:15,339 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:40:15,340 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:40:15,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-19 07:40:15,340 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-11-19 07:40:15,341 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:15,341 INFO L85 PathProgramCache]: Analyzing trace with hash -480202970, now seen corresponding path program 1 times [2023-11-19 07:40:15,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:15,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347044879] [2023-11-19 07:40:15,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:15,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:15,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:15,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:40:15,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:40:15,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347044879] [2023-11-19 07:40:15,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347044879] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:40:15,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:40:15,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:40:15,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919410518] [2023-11-19 07:40:15,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:40:15,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:40:15,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:40:15,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:40:15,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:40:15,445 INFO L87 Difference]: Start difference. First operand 45335 states and 63082 transitions. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:16,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:40:16,126 INFO L93 Difference]: Finished difference Result 107947 states and 151434 transitions. [2023-11-19 07:40:16,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:40:16,127 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 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 163 [2023-11-19 07:40:16,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:40:16,221 INFO L225 Difference]: With dead ends: 107947 [2023-11-19 07:40:16,221 INFO L226 Difference]: Without dead ends: 71683 [2023-11-19 07:40:16,253 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 [2023-11-19 07:40:16,254 INFO L413 NwaCegarLoop]: 759 mSDtfsCounter, 302 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 1185 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:40:16,254 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [302 Valid, 1185 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:40:16,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71683 states. [2023-11-19 07:40:17,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71683 to 64707. [2023-11-19 07:40:17,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64707 states, 64702 states have (on average 1.4033569286884486) internal successors, (90800), 64706 states have internal predecessors, (90800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:17,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64707 states to 64707 states and 90800 transitions. [2023-11-19 07:40:17,609 INFO L78 Accepts]: Start accepts. Automaton has 64707 states and 90800 transitions. Word has length 163 [2023-11-19 07:40:17,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:40:17,610 INFO L495 AbstractCegarLoop]: Abstraction has 64707 states and 90800 transitions. [2023-11-19 07:40:17,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:17,610 INFO L276 IsEmpty]: Start isEmpty. Operand 64707 states and 90800 transitions. [2023-11-19 07:40:17,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-11-19 07:40:17,627 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:40:17,627 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:40:17,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-19 07:40:17,628 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-11-19 07:40:17,628 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:17,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1640447980, now seen corresponding path program 1 times [2023-11-19 07:40:17,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:17,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664892901] [2023-11-19 07:40:17,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:17,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:17,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:18,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:40:18,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:40:18,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664892901] [2023-11-19 07:40:18,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664892901] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:40:18,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:40:18,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 07:40:18,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875049610] [2023-11-19 07:40:18,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:40:18,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 07:40:18,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:40:18,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 07:40:18,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:40:18,087 INFO L87 Difference]: Start difference. First operand 64707 states and 90800 transitions. Second operand has 8 states, 8 states have (on average 20.375) internal successors, (163), 7 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:19,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:40:19,948 INFO L93 Difference]: Finished difference Result 252084 states and 359213 transitions. [2023-11-19 07:40:19,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-19 07:40:19,948 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.375) internal successors, (163), 7 states have internal predecessors, (163), 0 states have call successors, (0), 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 163 [2023-11-19 07:40:19,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:40:20,200 INFO L225 Difference]: With dead ends: 252084 [2023-11-19 07:40:20,200 INFO L226 Difference]: Without dead ends: 192759 [2023-11-19 07:40:20,226 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=96, Invalid=176, Unknown=0, NotChecked=0, Total=272 [2023-11-19 07:40:20,226 INFO L413 NwaCegarLoop]: 490 mSDtfsCounter, 6071 mSDsluCounter, 932 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6071 SdHoareTripleChecker+Valid, 1422 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-19 07:40:20,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6071 Valid, 1422 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-19 07:40:20,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192759 states. [2023-11-19 07:40:22,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192759 to 103531. [2023-11-19 07:40:22,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103531 states, 103526 states have (on average 1.4065258968761472) internal successors, (145612), 103530 states have internal predecessors, (145612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:22,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103531 states to 103531 states and 145612 transitions. [2023-11-19 07:40:22,403 INFO L78 Accepts]: Start accepts. Automaton has 103531 states and 145612 transitions. Word has length 163 [2023-11-19 07:40:22,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:40:22,403 INFO L495 AbstractCegarLoop]: Abstraction has 103531 states and 145612 transitions. [2023-11-19 07:40:22,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.375) internal successors, (163), 7 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:22,403 INFO L276 IsEmpty]: Start isEmpty. Operand 103531 states and 145612 transitions. [2023-11-19 07:40:22,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-11-19 07:40:22,415 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:40:22,416 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:40:22,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-19 07:40:22,416 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-11-19 07:40:22,417 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:22,417 INFO L85 PathProgramCache]: Analyzing trace with hash 1138377499, now seen corresponding path program 1 times [2023-11-19 07:40:22,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:22,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265650347] [2023-11-19 07:40:22,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:22,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:22,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:22,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:40:22,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:40:22,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265650347] [2023-11-19 07:40:22,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265650347] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:40:22,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:40:22,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:40:22,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601032321] [2023-11-19 07:40:22,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:40:22,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:40:22,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:40:22,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:40:22,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:40:22,749 INFO L87 Difference]: Start difference. First operand 103531 states and 145612 transitions. Second operand has 4 states, 4 states have (on average 40.75) internal successors, (163), 4 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:23,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:40:23,825 INFO L93 Difference]: Finished difference Result 186665 states and 262242 transitions. [2023-11-19 07:40:23,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:40:23,826 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 4 states have internal predecessors, (163), 0 states have call successors, (0), 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 163 [2023-11-19 07:40:23,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:40:23,944 INFO L225 Difference]: With dead ends: 186665 [2023-11-19 07:40:23,944 INFO L226 Difference]: Without dead ends: 83192 [2023-11-19 07:40:23,995 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:40:23,996 INFO L413 NwaCegarLoop]: 580 mSDtfsCounter, 43 mSDsluCounter, 1091 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 1671 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:40:23,996 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 1671 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:40:24,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83192 states. [2023-11-19 07:40:25,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83192 to 83192. [2023-11-19 07:40:25,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83192 states, 83187 states have (on average 1.4028994915070865) internal successors, (116703), 83191 states have internal predecessors, (116703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:25,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83192 states to 83192 states and 116703 transitions. [2023-11-19 07:40:25,500 INFO L78 Accepts]: Start accepts. Automaton has 83192 states and 116703 transitions. Word has length 163 [2023-11-19 07:40:25,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:40:25,500 INFO L495 AbstractCegarLoop]: Abstraction has 83192 states and 116703 transitions. [2023-11-19 07:40:25,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 4 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:25,500 INFO L276 IsEmpty]: Start isEmpty. Operand 83192 states and 116703 transitions. [2023-11-19 07:40:25,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-11-19 07:40:25,508 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:40:25,508 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:40:25,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-19 07:40:25,509 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-11-19 07:40:25,509 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:25,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1815398331, now seen corresponding path program 1 times [2023-11-19 07:40:25,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:25,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185809380] [2023-11-19 07:40:25,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:25,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:25,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:26,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:40:26,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:40:26,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185809380] [2023-11-19 07:40:26,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185809380] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:40:26,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:40:26,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 07:40:26,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602083516] [2023-11-19 07:40:26,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:40:26,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 07:40:26,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:40:26,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 07:40:26,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:40:26,760 INFO L87 Difference]: Start difference. First operand 83192 states and 116703 transitions. Second operand has 9 states, 9 states have (on average 18.666666666666668) internal successors, (168), 8 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:29,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:40:29,121 INFO L93 Difference]: Finished difference Result 395624 states and 557646 transitions. [2023-11-19 07:40:29,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-19 07:40:29,122 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 18.666666666666668) internal successors, (168), 8 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 168 [2023-11-19 07:40:29,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:40:29,621 INFO L225 Difference]: With dead ends: 395624 [2023-11-19 07:40:29,621 INFO L226 Difference]: Without dead ends: 342664 [2023-11-19 07:40:29,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=221, Unknown=0, NotChecked=0, Total=342 [2023-11-19 07:40:29,659 INFO L413 NwaCegarLoop]: 449 mSDtfsCounter, 6314 mSDsluCounter, 2199 mSDsCounter, 0 mSdLazyCounter, 680 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6314 SdHoareTripleChecker+Valid, 2648 SdHoareTripleChecker+Invalid, 761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-19 07:40:29,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6314 Valid, 2648 Invalid, 761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 680 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-19 07:40:29,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342664 states. [2023-11-19 07:40:33,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342664 to 201800. [2023-11-19 07:40:33,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201800 states, 201795 states have (on average 1.4075819519809707) internal successors, (284043), 201799 states have internal predecessors, (284043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:34,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201800 states to 201800 states and 284043 transitions. [2023-11-19 07:40:34,526 INFO L78 Accepts]: Start accepts. Automaton has 201800 states and 284043 transitions. Word has length 168 [2023-11-19 07:40:34,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:40:34,526 INFO L495 AbstractCegarLoop]: Abstraction has 201800 states and 284043 transitions. [2023-11-19 07:40:34,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 18.666666666666668) internal successors, (168), 8 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:34,527 INFO L276 IsEmpty]: Start isEmpty. Operand 201800 states and 284043 transitions. [2023-11-19 07:40:34,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-11-19 07:40:34,584 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:40:34,585 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:40:34,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-19 07:40:34,587 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-11-19 07:40:34,588 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:34,588 INFO L85 PathProgramCache]: Analyzing trace with hash -304333062, now seen corresponding path program 1 times [2023-11-19 07:40:34,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:34,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67181351] [2023-11-19 07:40:34,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:34,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:34,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:35,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:40:35,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:40:35,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67181351] [2023-11-19 07:40:35,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67181351] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:40:35,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:40:35,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:40:35,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142384565] [2023-11-19 07:40:35,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:40:35,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:40:35,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:40:35,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:40:35,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:40:35,133 INFO L87 Difference]: Start difference. First operand 201800 states and 284043 transitions. Second operand has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)