./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4640c327-4780-4768-bd75-ac185c5c79a1/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4640c327-4780-4768-bd75-ac185c5c79a1/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_4640c327-4780-4768-bd75-ac185c5c79a1/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4640c327-4780-4768-bd75-ac185c5c79a1/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4640c327-4780-4768-bd75-ac185c5c79a1/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_4640c327-4780-4768-bd75-ac185c5c79a1/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 38533fb2932c589b42c93c264dc8e5e297bb0dbb9a49080a666466aefcec5174 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:57:05,565 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:57:05,642 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4640c327-4780-4768-bd75-ac185c5c79a1/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-19 07:57:05,648 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:57:05,649 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:57:05,673 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:57:05,674 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:57:05,674 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:57:05,675 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:57:05,676 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:57:05,677 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:57:05,677 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:57:05,678 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:57:05,679 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:57:05,679 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:57:05,680 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:57:05,680 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:57:05,681 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:57:05,681 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:57:05,682 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:57:05,682 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:57:05,683 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:57:05,683 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:57:05,684 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:57:05,684 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:57:05,685 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:57:05,685 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:57:05,686 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:57:05,686 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:57:05,687 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:57:05,687 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:57:05,687 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:57:05,688 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:57:05,688 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:57:05,688 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:57:05,688 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:57:05,689 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:57:05,689 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:57:05,689 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:57:05,689 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_4640c327-4780-4768-bd75-ac185c5c79a1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4640c327-4780-4768-bd75-ac185c5c79a1/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 38533fb2932c589b42c93c264dc8e5e297bb0dbb9a49080a666466aefcec5174 [2023-11-19 07:57:05,933 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:57:05,955 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:57:05,957 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:57:05,959 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:57:05,959 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:57:05,961 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4640c327-4780-4768-bd75-ac185c5c79a1/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c [2023-11-19 07:57:09,021 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:57:09,428 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:57:09,431 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4640c327-4780-4768-bd75-ac185c5c79a1/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c [2023-11-19 07:57:09,451 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4640c327-4780-4768-bd75-ac185c5c79a1/bin/uautomizer-verify-uCwYo4JHxu/data/ad5bc0ef4/fd83127916324753961004a590741b8d/FLAG627dd1b4e [2023-11-19 07:57:09,470 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4640c327-4780-4768-bd75-ac185c5c79a1/bin/uautomizer-verify-uCwYo4JHxu/data/ad5bc0ef4/fd83127916324753961004a590741b8d [2023-11-19 07:57:09,476 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:57:09,479 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:57:09,485 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:57:09,485 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:57:09,490 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:57:09,491 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:57:09" (1/1) ... [2023-11-19 07:57:09,495 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71e9903a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:09, skipping insertion in model container [2023-11-19 07:57:09,495 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:57:09" (1/1) ... [2023-11-19 07:57:09,593 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:57:09,930 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_4640c327-4780-4768-bd75-ac185c5c79a1/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[9419,9432] [2023-11-19 07:57:09,982 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_4640c327-4780-4768-bd75-ac185c5c79a1/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[12891,12904] [2023-11-19 07:57:09,993 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_4640c327-4780-4768-bd75-ac185c5c79a1/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[14047,14060] [2023-11-19 07:57:10,012 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_4640c327-4780-4768-bd75-ac185c5c79a1/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[14703,14716] [2023-11-19 07:57:10,027 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_4640c327-4780-4768-bd75-ac185c5c79a1/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[16224,16237] [2023-11-19 07:57:10,036 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4640c327-4780-4768-bd75-ac185c5c79a1/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[16880,16893] [2023-11-19 07:57:10,059 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_4640c327-4780-4768-bd75-ac185c5c79a1/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[17864,17877] [2023-11-19 07:57:10,074 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_4640c327-4780-4768-bd75-ac185c5c79a1/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[20202,20215] [2023-11-19 07:57:10,080 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_4640c327-4780-4768-bd75-ac185c5c79a1/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[20861,20874] [2023-11-19 07:57:10,091 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_4640c327-4780-4768-bd75-ac185c5c79a1/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[21885,21898] [2023-11-19 07:57:10,105 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_4640c327-4780-4768-bd75-ac185c5c79a1/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[23760,23773] [2023-11-19 07:57:10,284 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:57:10,313 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:57:10,397 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_4640c327-4780-4768-bd75-ac185c5c79a1/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[9419,9432] [2023-11-19 07:57:10,425 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_4640c327-4780-4768-bd75-ac185c5c79a1/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[12891,12904] [2023-11-19 07:57:10,438 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_4640c327-4780-4768-bd75-ac185c5c79a1/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[14047,14060] [2023-11-19 07:57:10,446 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_4640c327-4780-4768-bd75-ac185c5c79a1/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[14703,14716] [2023-11-19 07:57:10,461 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_4640c327-4780-4768-bd75-ac185c5c79a1/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[16224,16237] [2023-11-19 07:57:10,469 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_4640c327-4780-4768-bd75-ac185c5c79a1/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[16880,16893] [2023-11-19 07:57:10,480 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_4640c327-4780-4768-bd75-ac185c5c79a1/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[17864,17877] [2023-11-19 07:57:10,502 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_4640c327-4780-4768-bd75-ac185c5c79a1/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[20202,20215] [2023-11-19 07:57:10,516 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_4640c327-4780-4768-bd75-ac185c5c79a1/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[20861,20874] [2023-11-19 07:57:10,526 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_4640c327-4780-4768-bd75-ac185c5c79a1/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[21885,21898] [2023-11-19 07:57:10,544 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_4640c327-4780-4768-bd75-ac185c5c79a1/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[23760,23773] [2023-11-19 07:57:10,708 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:57:10,731 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:57:10,731 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:10 WrapperNode [2023-11-19 07:57:10,731 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:57:10,733 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:57:10,733 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:57:10,733 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:57:10,742 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:10" (1/1) ... [2023-11-19 07:57:10,787 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:10" (1/1) ... [2023-11-19 07:57:10,875 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 2016 [2023-11-19 07:57:10,876 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:57:10,877 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:57:10,877 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:57:10,877 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:57:10,887 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:10" (1/1) ... [2023-11-19 07:57:10,887 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:10" (1/1) ... [2023-11-19 07:57:10,895 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:10" (1/1) ... [2023-11-19 07:57:10,895 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:10" (1/1) ... [2023-11-19 07:57:10,929 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:10" (1/1) ... [2023-11-19 07:57:10,942 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:10" (1/1) ... [2023-11-19 07:57:10,947 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:10" (1/1) ... [2023-11-19 07:57:10,955 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:10" (1/1) ... [2023-11-19 07:57:10,966 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:57:10,967 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:57:10,967 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:57:10,967 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:57:10,968 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:10" (1/1) ... [2023-11-19 07:57:10,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:57:11,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4640c327-4780-4768-bd75-ac185c5c79a1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:57:11,031 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4640c327-4780-4768-bd75-ac185c5c79a1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:57:11,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4640c327-4780-4768-bd75-ac185c5c79a1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:57:11,082 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:57:11,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:57:11,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:57:11,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:57:11,259 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:57:11,261 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:57:12,806 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:57:12,824 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:57:12,825 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 07:57:12,832 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:57:12 BoogieIcfgContainer [2023-11-19 07:57:12,832 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:57:12,835 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:57:12,835 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:57:12,839 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:57:12,839 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:57:09" (1/3) ... [2023-11-19 07:57:12,840 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dd146d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:57:12, skipping insertion in model container [2023-11-19 07:57:12,841 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:10" (2/3) ... [2023-11-19 07:57:12,841 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dd146d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:57:12, skipping insertion in model container [2023-11-19 07:57:12,841 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:57:12" (3/3) ... [2023-11-19 07:57:12,843 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c [2023-11-19 07:57:12,864 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:57:12,864 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2023-11-19 07:57:12,931 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:57:12,940 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;@34f7edba, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:57:12,940 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2023-11-19 07:57:12,948 INFO L276 IsEmpty]: Start isEmpty. Operand has 359 states, 346 states have (on average 1.8381502890173411) internal successors, (636), 358 states have internal predecessors, (636), 0 states have call successors, (0), 0 states 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 07:57:12,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-19 07:57:12,964 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:12,965 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:12,966 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-19 07:57:12,971 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:12,972 INFO L85 PathProgramCache]: Analyzing trace with hash -1374718599, now seen corresponding path program 1 times [2023-11-19 07:57:12,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:12,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917431782] [2023-11-19 07:57:12,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:12,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:13,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:13,666 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 07:57:13,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:13,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917431782] [2023-11-19 07:57:13,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917431782] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:13,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:13,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:57:13,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361781260] [2023-11-19 07:57:13,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:13,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:57:13,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:13,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:57:13,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:57:13,710 INFO L87 Difference]: Start difference. First operand has 359 states, 346 states have (on average 1.8381502890173411) internal successors, (636), 358 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:14,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:14,152 INFO L93 Difference]: Finished difference Result 572 states and 974 transitions. [2023-11-19 07:57:14,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:57:14,155 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2023-11-19 07:57:14,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:14,177 INFO L225 Difference]: With dead ends: 572 [2023-11-19 07:57:14,177 INFO L226 Difference]: Without dead ends: 293 [2023-11-19 07:57:14,185 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:57:14,192 INFO L413 NwaCegarLoop]: 349 mSDtfsCounter, 1459 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1459 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:14,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1459 Valid, 363 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 07:57:14,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2023-11-19 07:57:14,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 293. [2023-11-19 07:57:14,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 282 states have (on average 1.2907801418439717) internal successors, (364), 292 states have internal predecessors, (364), 0 states have call successors, (0), 0 states 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 07:57:14,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 364 transitions. [2023-11-19 07:57:14,284 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 364 transitions. Word has length 59 [2023-11-19 07:57:14,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:14,285 INFO L495 AbstractCegarLoop]: Abstraction has 293 states and 364 transitions. [2023-11-19 07:57:14,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:14,285 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 364 transitions. [2023-11-19 07:57:14,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-19 07:57:14,298 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:14,299 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:14,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:57:14,303 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-19 07:57:14,305 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:14,306 INFO L85 PathProgramCache]: Analyzing trace with hash -2133391140, now seen corresponding path program 1 times [2023-11-19 07:57:14,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:14,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931235104] [2023-11-19 07:57:14,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:14,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:14,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:14,562 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 07:57:14,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:14,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931235104] [2023-11-19 07:57:14,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931235104] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:14,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:14,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:57:14,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969601466] [2023-11-19 07:57:14,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:14,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:57:14,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:14,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:57:14,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:57:14,567 INFO L87 Difference]: Start difference. First operand 293 states and 364 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:14,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:14,857 INFO L93 Difference]: Finished difference Result 495 states and 630 transitions. [2023-11-19 07:57:14,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:57:14,858 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2023-11-19 07:57:14,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:14,860 INFO L225 Difference]: With dead ends: 495 [2023-11-19 07:57:14,860 INFO L226 Difference]: Without dead ends: 273 [2023-11-19 07:57:14,861 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 07:57:14,862 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 941 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 941 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:14,863 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [941 Valid, 207 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 07:57:14,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2023-11-19 07:57:14,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 273. [2023-11-19 07:57:14,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 262 states have (on average 1.2938931297709924) internal successors, (339), 272 states have internal predecessors, (339), 0 states have call successors, (0), 0 states 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 07:57:14,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 339 transitions. [2023-11-19 07:57:14,877 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 339 transitions. Word has length 60 [2023-11-19 07:57:14,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:14,878 INFO L495 AbstractCegarLoop]: Abstraction has 273 states and 339 transitions. [2023-11-19 07:57:14,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:14,878 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 339 transitions. [2023-11-19 07:57:14,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-19 07:57:14,879 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:14,879 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:14,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:57:14,880 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-19 07:57:14,880 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:14,881 INFO L85 PathProgramCache]: Analyzing trace with hash 626465560, now seen corresponding path program 1 times [2023-11-19 07:57:14,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:14,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638383733] [2023-11-19 07:57:14,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:14,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:14,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:15,039 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 07:57:15,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:15,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638383733] [2023-11-19 07:57:15,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638383733] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:15,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:15,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:57:15,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145926195] [2023-11-19 07:57:15,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:15,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:57:15,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:15,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:57:15,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:57:15,042 INFO L87 Difference]: Start difference. First operand 273 states and 339 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:15,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:15,308 INFO L93 Difference]: Finished difference Result 475 states and 604 transitions. [2023-11-19 07:57:15,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:57:15,309 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2023-11-19 07:57:15,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:15,311 INFO L225 Difference]: With dead ends: 475 [2023-11-19 07:57:15,311 INFO L226 Difference]: Without dead ends: 254 [2023-11-19 07:57:15,312 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 07:57:15,313 INFO L413 NwaCegarLoop]: 184 mSDtfsCounter, 901 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 901 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:15,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [901 Valid, 196 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:57:15,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2023-11-19 07:57:15,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 254. [2023-11-19 07:57:15,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 243 states have (on average 1.3045267489711934) internal successors, (317), 253 states have internal predecessors, (317), 0 states have call successors, (0), 0 states 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 07:57:15,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 317 transitions. [2023-11-19 07:57:15,324 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 317 transitions. Word has length 61 [2023-11-19 07:57:15,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:15,324 INFO L495 AbstractCegarLoop]: Abstraction has 254 states and 317 transitions. [2023-11-19 07:57:15,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:15,325 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 317 transitions. [2023-11-19 07:57:15,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-19 07:57:15,326 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:15,326 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] [2023-11-19 07:57:15,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:57:15,326 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-19 07:57:15,327 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:15,327 INFO L85 PathProgramCache]: Analyzing trace with hash 55190193, now seen corresponding path program 1 times [2023-11-19 07:57:15,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:15,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201922799] [2023-11-19 07:57:15,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:15,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:15,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:15,496 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 07:57:15,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:15,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201922799] [2023-11-19 07:57:15,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201922799] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:15,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:15,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:57:15,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092600379] [2023-11-19 07:57:15,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:15,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:57:15,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:15,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:57:15,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:57:15,499 INFO L87 Difference]: Start difference. First operand 254 states and 317 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 0 states have call successors, (0), 0 states 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 07:57:15,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:15,710 INFO L93 Difference]: Finished difference Result 456 states and 581 transitions. [2023-11-19 07:57:15,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:57:15,711 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2023-11-19 07:57:15,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:15,713 INFO L225 Difference]: With dead ends: 456 [2023-11-19 07:57:15,713 INFO L226 Difference]: Without dead ends: 246 [2023-11-19 07:57:15,713 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 07:57:15,714 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 858 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 858 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:15,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [858 Valid, 192 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:57:15,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2023-11-19 07:57:15,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 246. [2023-11-19 07:57:15,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 235 states have (on average 1.3063829787234043) internal successors, (307), 245 states have internal predecessors, (307), 0 states have call successors, (0), 0 states 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 07:57:15,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 307 transitions. [2023-11-19 07:57:15,723 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 307 transitions. Word has length 62 [2023-11-19 07:57:15,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:15,723 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 307 transitions. [2023-11-19 07:57:15,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 0 states have call successors, (0), 0 states 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 07:57:15,724 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 307 transitions. [2023-11-19 07:57:15,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-19 07:57:15,725 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:15,725 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:15,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:57:15,726 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-19 07:57:15,726 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:15,726 INFO L85 PathProgramCache]: Analyzing trace with hash -1176799625, now seen corresponding path program 1 times [2023-11-19 07:57:15,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:15,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779092057] [2023-11-19 07:57:15,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:15,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:15,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:16,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:57:16,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:16,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779092057] [2023-11-19 07:57:16,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779092057] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:16,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:16,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 07:57:16,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810846128] [2023-11-19 07:57:16,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:16,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 07:57:16,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:16,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 07:57:16,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:57:16,240 INFO L87 Difference]: Start difference. First operand 246 states and 307 transitions. Second operand has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:17,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:17,049 INFO L93 Difference]: Finished difference Result 576 states and 753 transitions. [2023-11-19 07:57:17,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-19 07:57:17,050 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2023-11-19 07:57:17,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:17,053 INFO L225 Difference]: With dead ends: 576 [2023-11-19 07:57:17,053 INFO L226 Difference]: Without dead ends: 489 [2023-11-19 07:57:17,054 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2023-11-19 07:57:17,055 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 1377 mSDsluCounter, 802 mSDsCounter, 0 mSdLazyCounter, 759 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1377 SdHoareTripleChecker+Valid, 1011 SdHoareTripleChecker+Invalid, 765 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:17,055 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1377 Valid, 1011 Invalid, 765 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 759 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-19 07:57:17,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2023-11-19 07:57:17,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 246. [2023-11-19 07:57:17,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 235 states have (on average 1.3021276595744682) internal successors, (306), 245 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:17,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 306 transitions. [2023-11-19 07:57:17,065 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 306 transitions. Word has length 63 [2023-11-19 07:57:17,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:17,066 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 306 transitions. [2023-11-19 07:57:17,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:17,066 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 306 transitions. [2023-11-19 07:57:17,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-19 07:57:17,067 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:17,067 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:17,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 07:57:17,068 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-19 07:57:17,068 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:17,068 INFO L85 PathProgramCache]: Analyzing trace with hash -1585644853, now seen corresponding path program 1 times [2023-11-19 07:57:17,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:17,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076038858] [2023-11-19 07:57:17,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:17,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:17,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:17,475 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 07:57:17,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:17,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076038858] [2023-11-19 07:57:17,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076038858] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:17,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:17,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 07:57:17,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954646223] [2023-11-19 07:57:17,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:17,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 07:57:17,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:17,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 07:57:17,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:57:17,483 INFO L87 Difference]: Start difference. First operand 246 states and 306 transitions. Second operand has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:18,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:18,349 INFO L93 Difference]: Finished difference Result 550 states and 719 transitions. [2023-11-19 07:57:18,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-19 07:57:18,349 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2023-11-19 07:57:18,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:18,353 INFO L225 Difference]: With dead ends: 550 [2023-11-19 07:57:18,353 INFO L226 Difference]: Without dead ends: 485 [2023-11-19 07:57:18,354 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2023-11-19 07:57:18,355 INFO L413 NwaCegarLoop]: 232 mSDtfsCounter, 1840 mSDsluCounter, 746 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1840 SdHoareTripleChecker+Valid, 978 SdHoareTripleChecker+Invalid, 754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:18,355 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1840 Valid, 978 Invalid, 754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 747 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-19 07:57:18,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2023-11-19 07:57:18,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 246. [2023-11-19 07:57:18,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 235 states have (on average 1.297872340425532) internal successors, (305), 245 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:18,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 305 transitions. [2023-11-19 07:57:18,366 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 305 transitions. Word has length 63 [2023-11-19 07:57:18,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:18,366 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 305 transitions. [2023-11-19 07:57:18,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:18,367 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 305 transitions. [2023-11-19 07:57:18,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-19 07:57:18,368 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:18,368 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:18,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 07:57:18,369 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-19 07:57:18,369 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:18,370 INFO L85 PathProgramCache]: Analyzing trace with hash 202563885, now seen corresponding path program 1 times [2023-11-19 07:57:18,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:18,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266533657] [2023-11-19 07:57:18,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:18,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:18,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:18,682 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 07:57:18,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:18,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266533657] [2023-11-19 07:57:18,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266533657] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:18,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:18,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 07:57:18,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811974336] [2023-11-19 07:57:18,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:18,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 07:57:18,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:18,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 07:57:18,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:57:18,686 INFO L87 Difference]: Start difference. First operand 246 states and 305 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:19,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:19,079 INFO L93 Difference]: Finished difference Result 483 states and 599 transitions. [2023-11-19 07:57:19,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 07:57:19,080 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2023-11-19 07:57:19,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:19,082 INFO L225 Difference]: With dead ends: 483 [2023-11-19 07:57:19,082 INFO L226 Difference]: Without dead ends: 351 [2023-11-19 07:57:19,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2023-11-19 07:57:19,084 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 1187 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1187 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:19,084 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1187 Valid, 439 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 07:57:19,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2023-11-19 07:57:19,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 246. [2023-11-19 07:57:19,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 235 states have (on average 1.2936170212765958) internal successors, (304), 245 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:19,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 304 transitions. [2023-11-19 07:57:19,092 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 304 transitions. Word has length 63 [2023-11-19 07:57:19,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:19,093 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 304 transitions. [2023-11-19 07:57:19,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:19,093 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 304 transitions. [2023-11-19 07:57:19,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-19 07:57:19,094 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:19,095 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:19,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 07:57:19,095 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-19 07:57:19,096 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:19,096 INFO L85 PathProgramCache]: Analyzing trace with hash -620136770, now seen corresponding path program 1 times [2023-11-19 07:57:19,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:19,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096371948] [2023-11-19 07:57:19,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:19,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:19,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:19,375 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 07:57:19,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:19,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096371948] [2023-11-19 07:57:19,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096371948] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:19,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:19,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 07:57:19,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764721629] [2023-11-19 07:57:19,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:19,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 07:57:19,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:19,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 07:57:19,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:57:19,379 INFO L87 Difference]: Start difference. First operand 246 states and 304 transitions. Second operand has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:20,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:20,132 INFO L93 Difference]: Finished difference Result 535 states and 692 transitions. [2023-11-19 07:57:20,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-19 07:57:20,133 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2023-11-19 07:57:20,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:20,136 INFO L225 Difference]: With dead ends: 535 [2023-11-19 07:57:20,137 INFO L226 Difference]: Without dead ends: 477 [2023-11-19 07:57:20,138 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2023-11-19 07:57:20,139 INFO L413 NwaCegarLoop]: 223 mSDtfsCounter, 1351 mSDsluCounter, 703 mSDsCounter, 0 mSdLazyCounter, 705 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1351 SdHoareTripleChecker+Valid, 926 SdHoareTripleChecker+Invalid, 711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 705 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:20,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1351 Valid, 926 Invalid, 711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 705 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-19 07:57:20,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2023-11-19 07:57:20,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 246. [2023-11-19 07:57:20,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 235 states have (on average 1.2893617021276595) internal successors, (303), 245 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:20,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 303 transitions. [2023-11-19 07:57:20,149 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 303 transitions. Word has length 65 [2023-11-19 07:57:20,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:20,150 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 303 transitions. [2023-11-19 07:57:20,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:20,150 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 303 transitions. [2023-11-19 07:57:20,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-19 07:57:20,152 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:20,152 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:20,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-19 07:57:20,152 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-19 07:57:20,153 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:20,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1292060332, now seen corresponding path program 1 times [2023-11-19 07:57:20,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:20,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110622080] [2023-11-19 07:57:20,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:20,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:20,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:20,468 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 07:57:20,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:20,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110622080] [2023-11-19 07:57:20,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110622080] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:20,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:20,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 07:57:20,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770610065] [2023-11-19 07:57:20,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:20,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 07:57:20,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:20,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 07:57:20,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:57:20,472 INFO L87 Difference]: Start difference. First operand 246 states and 303 transitions. Second operand has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:21,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:21,298 INFO L93 Difference]: Finished difference Result 555 states and 720 transitions. [2023-11-19 07:57:21,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-19 07:57:21,299 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2023-11-19 07:57:21,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:21,303 INFO L225 Difference]: With dead ends: 555 [2023-11-19 07:57:21,303 INFO L226 Difference]: Without dead ends: 485 [2023-11-19 07:57:21,304 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2023-11-19 07:57:21,306 INFO L413 NwaCegarLoop]: 285 mSDtfsCounter, 1351 mSDsluCounter, 795 mSDsCounter, 0 mSdLazyCounter, 811 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1351 SdHoareTripleChecker+Valid, 1080 SdHoareTripleChecker+Invalid, 819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 811 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:21,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1351 Valid, 1080 Invalid, 819 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 811 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-19 07:57:21,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2023-11-19 07:57:21,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 246. [2023-11-19 07:57:21,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 235 states have (on average 1.2851063829787235) internal successors, (302), 245 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:21,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 302 transitions. [2023-11-19 07:57:21,318 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 302 transitions. Word has length 65 [2023-11-19 07:57:21,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:21,318 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 302 transitions. [2023-11-19 07:57:21,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:21,319 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 302 transitions. [2023-11-19 07:57:21,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-19 07:57:21,320 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:21,320 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:21,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-19 07:57:21,321 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-19 07:57:21,321 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:21,322 INFO L85 PathProgramCache]: Analyzing trace with hash -109241464, now seen corresponding path program 1 times [2023-11-19 07:57:21,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:21,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034903235] [2023-11-19 07:57:21,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:21,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:21,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:21,683 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 07:57:21,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:21,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034903235] [2023-11-19 07:57:21,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034903235] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:21,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:21,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 07:57:21,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930539924] [2023-11-19 07:57:21,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:21,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 07:57:21,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:21,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 07:57:21,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:57:21,686 INFO L87 Difference]: Start difference. First operand 246 states and 302 transitions. Second operand has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:22,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:22,455 INFO L93 Difference]: Finished difference Result 532 states and 687 transitions. [2023-11-19 07:57:22,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-19 07:57:22,456 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2023-11-19 07:57:22,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:22,459 INFO L225 Difference]: With dead ends: 532 [2023-11-19 07:57:22,459 INFO L226 Difference]: Without dead ends: 477 [2023-11-19 07:57:22,460 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2023-11-19 07:57:22,461 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 1776 mSDsluCounter, 728 mSDsCounter, 0 mSdLazyCounter, 721 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1776 SdHoareTripleChecker+Valid, 955 SdHoareTripleChecker+Invalid, 728 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 721 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:22,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1776 Valid, 955 Invalid, 728 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 721 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-19 07:57:22,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2023-11-19 07:57:22,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 246. [2023-11-19 07:57:22,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 235 states have (on average 1.2808510638297872) internal successors, (301), 245 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:22,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 301 transitions. [2023-11-19 07:57:22,472 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 301 transitions. Word has length 65 [2023-11-19 07:57:22,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:22,473 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 301 transitions. [2023-11-19 07:57:22,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:22,473 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 301 transitions. [2023-11-19 07:57:22,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-19 07:57:22,475 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:22,475 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:22,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-19 07:57:22,476 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-19 07:57:22,476 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:22,477 INFO L85 PathProgramCache]: Analyzing trace with hash -1375273345, now seen corresponding path program 1 times [2023-11-19 07:57:22,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:22,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52363939] [2023-11-19 07:57:22,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:22,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:22,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:22,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:57:22,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:22,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52363939] [2023-11-19 07:57:22,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52363939] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:22,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:22,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 07:57:22,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70103361] [2023-11-19 07:57:22,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:22,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 07:57:22,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:22,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 07:57:22,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:57:22,794 INFO L87 Difference]: Start difference. First operand 246 states and 301 transitions. Second operand has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:23,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:23,574 INFO L93 Difference]: Finished difference Result 482 states and 612 transitions. [2023-11-19 07:57:23,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-19 07:57:23,575 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2023-11-19 07:57:23,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:23,578 INFO L225 Difference]: With dead ends: 482 [2023-11-19 07:57:23,578 INFO L226 Difference]: Without dead ends: 477 [2023-11-19 07:57:23,578 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2023-11-19 07:57:23,579 INFO L413 NwaCegarLoop]: 276 mSDtfsCounter, 1255 mSDsluCounter, 806 mSDsCounter, 0 mSdLazyCounter, 823 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1255 SdHoareTripleChecker+Valid, 1082 SdHoareTripleChecker+Invalid, 830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 823 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:23,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1255 Valid, 1082 Invalid, 830 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 823 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-19 07:57:23,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2023-11-19 07:57:23,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 246. [2023-11-19 07:57:23,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 235 states have (on average 1.2765957446808511) internal successors, (300), 245 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:23,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 300 transitions. [2023-11-19 07:57:23,589 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 300 transitions. Word has length 65 [2023-11-19 07:57:23,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:23,589 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 300 transitions. [2023-11-19 07:57:23,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:23,590 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 300 transitions. [2023-11-19 07:57:23,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-19 07:57:23,591 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:23,591 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:23,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-19 07:57:23,592 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-19 07:57:23,592 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:23,592 INFO L85 PathProgramCache]: Analyzing trace with hash -636059456, now seen corresponding path program 1 times [2023-11-19 07:57:23,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:23,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317918848] [2023-11-19 07:57:23,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:23,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:23,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:23,876 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 07:57:23,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:23,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317918848] [2023-11-19 07:57:23,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317918848] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:23,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:23,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 07:57:23,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193955655] [2023-11-19 07:57:23,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:23,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 07:57:23,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:23,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 07:57:23,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:57:23,879 INFO L87 Difference]: Start difference. First operand 246 states and 300 transitions. Second operand has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:24,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:24,683 INFO L93 Difference]: Finished difference Result 582 states and 751 transitions. [2023-11-19 07:57:24,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-19 07:57:24,684 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2023-11-19 07:57:24,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:24,687 INFO L225 Difference]: With dead ends: 582 [2023-11-19 07:57:24,688 INFO L226 Difference]: Without dead ends: 489 [2023-11-19 07:57:24,688 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2023-11-19 07:57:24,690 INFO L413 NwaCegarLoop]: 325 mSDtfsCounter, 1232 mSDsluCounter, 1022 mSDsCounter, 0 mSdLazyCounter, 957 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1232 SdHoareTripleChecker+Valid, 1347 SdHoareTripleChecker+Invalid, 964 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 957 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:24,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1232 Valid, 1347 Invalid, 964 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 957 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-19 07:57:24,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2023-11-19 07:57:24,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 246. [2023-11-19 07:57:24,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 235 states have (on average 1.2723404255319148) internal successors, (299), 245 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:24,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 299 transitions. [2023-11-19 07:57:24,699 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 299 transitions. Word has length 65 [2023-11-19 07:57:24,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:24,700 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 299 transitions. [2023-11-19 07:57:24,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:24,700 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 299 transitions. [2023-11-19 07:57:24,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-19 07:57:24,702 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:24,702 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:24,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-19 07:57:24,703 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-19 07:57:24,704 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:24,704 INFO L85 PathProgramCache]: Analyzing trace with hash 2058271748, now seen corresponding path program 1 times [2023-11-19 07:57:24,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:24,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7598215] [2023-11-19 07:57:24,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:24,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:24,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:25,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:57:25,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:25,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7598215] [2023-11-19 07:57:25,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7598215] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:25,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:25,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 07:57:25,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190536695] [2023-11-19 07:57:25,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:25,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 07:57:25,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:25,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 07:57:25,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:57:25,020 INFO L87 Difference]: Start difference. First operand 246 states and 299 transitions. Second operand has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:25,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:25,791 INFO L93 Difference]: Finished difference Result 482 states and 609 transitions. [2023-11-19 07:57:25,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-19 07:57:25,791 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2023-11-19 07:57:25,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:25,794 INFO L225 Difference]: With dead ends: 482 [2023-11-19 07:57:25,794 INFO L226 Difference]: Without dead ends: 477 [2023-11-19 07:57:25,795 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2023-11-19 07:57:25,795 INFO L413 NwaCegarLoop]: 266 mSDtfsCounter, 1539 mSDsluCounter, 831 mSDsCounter, 0 mSdLazyCounter, 842 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1539 SdHoareTripleChecker+Valid, 1097 SdHoareTripleChecker+Invalid, 848 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 842 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:25,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1539 Valid, 1097 Invalid, 848 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 842 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-19 07:57:25,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2023-11-19 07:57:25,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 246. [2023-11-19 07:57:25,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 235 states have (on average 1.2680851063829788) internal successors, (298), 245 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:25,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 298 transitions. [2023-11-19 07:57:25,805 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 298 transitions. Word has length 65 [2023-11-19 07:57:25,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:25,806 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 298 transitions. [2023-11-19 07:57:25,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:25,806 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 298 transitions. [2023-11-19 07:57:25,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-19 07:57:25,807 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:25,807 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:25,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-19 07:57:25,808 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-19 07:57:25,808 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:25,808 INFO L85 PathProgramCache]: Analyzing trace with hash -324498446, now seen corresponding path program 1 times [2023-11-19 07:57:25,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:25,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951468807] [2023-11-19 07:57:25,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:25,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:25,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:26,074 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 07:57:26,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:26,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951468807] [2023-11-19 07:57:26,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951468807] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:26,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:26,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 07:57:26,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253628846] [2023-11-19 07:57:26,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:26,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 07:57:26,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:26,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 07:57:26,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:57:26,077 INFO L87 Difference]: Start difference. First operand 246 states and 298 transitions. Second operand has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:26,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:26,860 INFO L93 Difference]: Finished difference Result 502 states and 637 transitions. [2023-11-19 07:57:26,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-19 07:57:26,860 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2023-11-19 07:57:26,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:26,863 INFO L225 Difference]: With dead ends: 502 [2023-11-19 07:57:26,864 INFO L226 Difference]: Without dead ends: 485 [2023-11-19 07:57:26,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2023-11-19 07:57:26,865 INFO L413 NwaCegarLoop]: 310 mSDtfsCounter, 811 mSDsluCounter, 958 mSDsCounter, 0 mSdLazyCounter, 908 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 811 SdHoareTripleChecker+Valid, 1268 SdHoareTripleChecker+Invalid, 913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 908 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:26,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [811 Valid, 1268 Invalid, 913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 908 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-19 07:57:26,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2023-11-19 07:57:26,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 246. [2023-11-19 07:57:26,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 235 states have (on average 1.2638297872340425) internal successors, (297), 245 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:26,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 297 transitions. [2023-11-19 07:57:26,875 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 297 transitions. Word has length 65 [2023-11-19 07:57:26,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:26,875 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 297 transitions. [2023-11-19 07:57:26,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:26,876 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 297 transitions. [2023-11-19 07:57:26,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-19 07:57:26,877 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:26,877 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:26,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-19 07:57:26,877 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-19 07:57:26,878 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:26,878 INFO L85 PathProgramCache]: Analyzing trace with hash -809481061, now seen corresponding path program 1 times [2023-11-19 07:57:26,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:26,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834386021] [2023-11-19 07:57:26,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:26,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:26,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:27,606 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 07:57:27,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:27,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834386021] [2023-11-19 07:57:27,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834386021] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:27,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:27,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-19 07:57:27,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621507051] [2023-11-19 07:57:27,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:27,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-19 07:57:27,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:27,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-19 07:57:27,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-11-19 07:57:27,609 INFO L87 Difference]: Start difference. First operand 246 states and 297 transitions. Second operand has 11 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:28,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:28,353 INFO L93 Difference]: Finished difference Result 702 states and 898 transitions. [2023-11-19 07:57:28,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-19 07:57:28,354 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2023-11-19 07:57:28,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:28,358 INFO L225 Difference]: With dead ends: 702 [2023-11-19 07:57:28,358 INFO L226 Difference]: Without dead ends: 586 [2023-11-19 07:57:28,360 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=147, Invalid=359, Unknown=0, NotChecked=0, Total=506 [2023-11-19 07:57:28,361 INFO L413 NwaCegarLoop]: 334 mSDtfsCounter, 1570 mSDsluCounter, 1308 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1570 SdHoareTripleChecker+Valid, 1642 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:28,362 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1570 Valid, 1642 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 07:57:28,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 586 states. [2023-11-19 07:57:28,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 586 to 183. [2023-11-19 07:57:28,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 176 states have (on average 1.25) internal successors, (220), 182 states have internal predecessors, (220), 0 states have call successors, (0), 0 states 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 07:57:28,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 220 transitions. [2023-11-19 07:57:28,373 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 220 transitions. Word has length 67 [2023-11-19 07:57:28,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:28,374 INFO L495 AbstractCegarLoop]: Abstraction has 183 states and 220 transitions. [2023-11-19 07:57:28,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:28,374 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 220 transitions. [2023-11-19 07:57:28,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-19 07:57:28,375 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:28,375 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:28,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-19 07:57:28,376 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-19 07:57:28,376 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:28,376 INFO L85 PathProgramCache]: Analyzing trace with hash -827796874, now seen corresponding path program 1 times [2023-11-19 07:57:28,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:28,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839486798] [2023-11-19 07:57:28,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:28,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:28,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:29,146 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 07:57:29,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:29,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839486798] [2023-11-19 07:57:29,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839486798] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:29,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:29,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-11-19 07:57:29,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480019639] [2023-11-19 07:57:29,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:29,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-19 07:57:29,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:29,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-19 07:57:29,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-11-19 07:57:29,151 INFO L87 Difference]: Start difference. First operand 183 states and 220 transitions. Second operand has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 13 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:30,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:30,155 INFO L93 Difference]: Finished difference Result 483 states and 610 transitions. [2023-11-19 07:57:30,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-19 07:57:30,155 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 13 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2023-11-19 07:57:30,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:30,158 INFO L225 Difference]: With dead ends: 483 [2023-11-19 07:57:30,158 INFO L226 Difference]: Without dead ends: 426 [2023-11-19 07:57:30,159 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2023-11-19 07:57:30,159 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 1106 mSDsluCounter, 1490 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1106 SdHoareTripleChecker+Valid, 1681 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:30,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1106 Valid, 1681 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-19 07:57:30,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2023-11-19 07:57:30,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 179. [2023-11-19 07:57:30,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 173 states have (on average 1.2427745664739884) internal successors, (215), 178 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:30,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 215 transitions. [2023-11-19 07:57:30,167 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 215 transitions. Word has length 67 [2023-11-19 07:57:30,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:30,168 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 215 transitions. [2023-11-19 07:57:30,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 13 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:30,168 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 215 transitions. [2023-11-19 07:57:30,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-19 07:57:30,169 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:30,169 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:30,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-19 07:57:30,170 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-19 07:57:30,170 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:30,170 INFO L85 PathProgramCache]: Analyzing trace with hash 455689729, now seen corresponding path program 1 times [2023-11-19 07:57:30,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:30,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450814937] [2023-11-19 07:57:30,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:30,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:30,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:30,904 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 07:57:30,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:30,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450814937] [2023-11-19 07:57:30,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450814937] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:30,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:30,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-11-19 07:57:30,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654135504] [2023-11-19 07:57:30,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:30,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-19 07:57:30,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:30,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-19 07:57:30,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-11-19 07:57:30,907 INFO L87 Difference]: Start difference. First operand 179 states and 215 transitions. Second operand has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 13 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:31,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:31,875 INFO L93 Difference]: Finished difference Result 429 states and 532 transitions. [2023-11-19 07:57:31,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-19 07:57:31,876 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 13 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2023-11-19 07:57:31,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:31,879 INFO L225 Difference]: With dead ends: 429 [2023-11-19 07:57:31,880 INFO L226 Difference]: Without dead ends: 425 [2023-11-19 07:57:31,880 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=158, Invalid=492, Unknown=0, NotChecked=0, Total=650 [2023-11-19 07:57:31,881 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 1093 mSDsluCounter, 1302 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1093 SdHoareTripleChecker+Valid, 1491 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:31,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1093 Valid, 1491 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-19 07:57:31,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2023-11-19 07:57:31,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 175. [2023-11-19 07:57:31,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 170 states have (on average 1.2411764705882353) internal successors, (211), 174 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:31,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 211 transitions. [2023-11-19 07:57:31,892 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 211 transitions. Word has length 67 [2023-11-19 07:57:31,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:31,892 INFO L495 AbstractCegarLoop]: Abstraction has 175 states and 211 transitions. [2023-11-19 07:57:31,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 13 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:31,893 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 211 transitions. [2023-11-19 07:57:31,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-19 07:57:31,894 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:31,894 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:31,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-19 07:57:31,894 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-19 07:57:31,895 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:31,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1324827419, now seen corresponding path program 1 times [2023-11-19 07:57:31,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:31,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599374403] [2023-11-19 07:57:31,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:31,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:31,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:33,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:57:33,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:33,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599374403] [2023-11-19 07:57:33,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599374403] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:33,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:33,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2023-11-19 07:57:33,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889518750] [2023-11-19 07:57:33,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:33,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-11-19 07:57:33,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:33,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-11-19 07:57:33,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=446, Unknown=0, NotChecked=0, Total=506 [2023-11-19 07:57:33,337 INFO L87 Difference]: Start difference. First operand 175 states and 211 transitions. Second operand has 23 states, 23 states have (on average 2.9130434782608696) internal successors, (67), 23 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:36,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:36,151 INFO L93 Difference]: Finished difference Result 623 states and 791 transitions. [2023-11-19 07:57:36,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-19 07:57:36,151 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.9130434782608696) internal successors, (67), 23 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2023-11-19 07:57:36,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:36,155 INFO L225 Difference]: With dead ends: 623 [2023-11-19 07:57:36,155 INFO L226 Difference]: Without dead ends: 563 [2023-11-19 07:57:36,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=303, Invalid=1419, Unknown=0, NotChecked=0, Total=1722 [2023-11-19 07:57:36,157 INFO L413 NwaCegarLoop]: 380 mSDtfsCounter, 1652 mSDsluCounter, 4428 mSDsCounter, 0 mSdLazyCounter, 2478 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1652 SdHoareTripleChecker+Valid, 4808 SdHoareTripleChecker+Invalid, 2493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 2478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:36,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1652 Valid, 4808 Invalid, 2493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 2478 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-19 07:57:36,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2023-11-19 07:57:36,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 189. [2023-11-19 07:57:36,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 184 states have (on average 1.2445652173913044) internal successors, (229), 188 states have internal predecessors, (229), 0 states have call successors, (0), 0 states 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 07:57:36,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 229 transitions. [2023-11-19 07:57:36,167 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 229 transitions. Word has length 67 [2023-11-19 07:57:36,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:36,167 INFO L495 AbstractCegarLoop]: Abstraction has 189 states and 229 transitions. [2023-11-19 07:57:36,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.9130434782608696) internal successors, (67), 23 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:36,168 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 229 transitions. [2023-11-19 07:57:36,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-19 07:57:36,169 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:36,169 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:36,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-19 07:57:36,169 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-19 07:57:36,170 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:36,170 INFO L85 PathProgramCache]: Analyzing trace with hash -1419406755, now seen corresponding path program 1 times [2023-11-19 07:57:36,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:36,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126324784] [2023-11-19 07:57:36,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:36,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:36,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:37,691 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 07:57:37,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:37,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126324784] [2023-11-19 07:57:37,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126324784] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:37,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:37,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2023-11-19 07:57:37,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369373706] [2023-11-19 07:57:37,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:37,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-19 07:57:37,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:37,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-19 07:57:37,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2023-11-19 07:57:37,694 INFO L87 Difference]: Start difference. First operand 189 states and 229 transitions. Second operand has 20 states, 20 states have (on average 3.4) internal successors, (68), 20 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:40,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:40,223 INFO L93 Difference]: Finished difference Result 533 states and 674 transitions. [2023-11-19 07:57:40,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-19 07:57:40,224 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.4) internal successors, (68), 20 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2023-11-19 07:57:40,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:40,227 INFO L225 Difference]: With dead ends: 533 [2023-11-19 07:57:40,227 INFO L226 Difference]: Without dead ends: 473 [2023-11-19 07:57:40,228 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=344, Invalid=1138, Unknown=0, NotChecked=0, Total=1482 [2023-11-19 07:57:40,229 INFO L413 NwaCegarLoop]: 312 mSDtfsCounter, 1716 mSDsluCounter, 3337 mSDsCounter, 0 mSdLazyCounter, 1513 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1716 SdHoareTripleChecker+Valid, 3649 SdHoareTripleChecker+Invalid, 1522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:40,229 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1716 Valid, 3649 Invalid, 1522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1513 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-19 07:57:40,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2023-11-19 07:57:40,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 174. [2023-11-19 07:57:40,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 169 states have (on average 1.2307692307692308) internal successors, (208), 173 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:40,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 208 transitions. [2023-11-19 07:57:40,236 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 208 transitions. Word has length 68 [2023-11-19 07:57:40,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:40,237 INFO L495 AbstractCegarLoop]: Abstraction has 174 states and 208 transitions. [2023-11-19 07:57:40,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.4) internal successors, (68), 20 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:40,237 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 208 transitions. [2023-11-19 07:57:40,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-19 07:57:40,238 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:40,238 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:40,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-19 07:57:40,239 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-19 07:57:40,239 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:40,239 INFO L85 PathProgramCache]: Analyzing trace with hash 823611388, now seen corresponding path program 1 times [2023-11-19 07:57:40,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:40,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710537584] [2023-11-19 07:57:40,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:40,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:40,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:40,554 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 07:57:40,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:40,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710537584] [2023-11-19 07:57:40,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710537584] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:40,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:40,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 07:57:40,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733505174] [2023-11-19 07:57:40,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:40,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 07:57:40,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:40,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 07:57:40,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:57:40,559 INFO L87 Difference]: Start difference. First operand 174 states and 208 transitions. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:40,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:40,993 INFO L93 Difference]: Finished difference Result 269 states and 328 transitions. [2023-11-19 07:57:40,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-19 07:57:40,994 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2023-11-19 07:57:40,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:40,995 INFO L225 Difference]: With dead ends: 269 [2023-11-19 07:57:40,995 INFO L226 Difference]: Without dead ends: 262 [2023-11-19 07:57:40,996 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=239, Unknown=0, NotChecked=0, Total=342 [2023-11-19 07:57:40,996 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 1133 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1133 SdHoareTripleChecker+Valid, 534 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:40,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1133 Valid, 534 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 07:57:40,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2023-11-19 07:57:41,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 174. [2023-11-19 07:57:41,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 169 states have (on average 1.2248520710059172) internal successors, (207), 173 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:41,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 207 transitions. [2023-11-19 07:57:41,003 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 207 transitions. Word has length 68 [2023-11-19 07:57:41,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:41,003 INFO L495 AbstractCegarLoop]: Abstraction has 174 states and 207 transitions. [2023-11-19 07:57:41,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:41,004 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 207 transitions. [2023-11-19 07:57:41,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-19 07:57:41,005 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:41,005 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:41,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-19 07:57:41,005 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-19 07:57:41,007 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:41,007 INFO L85 PathProgramCache]: Analyzing trace with hash 520441226, now seen corresponding path program 1 times [2023-11-19 07:57:41,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:41,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386782269] [2023-11-19 07:57:41,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:41,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:41,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:41,230 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 07:57:41,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:41,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386782269] [2023-11-19 07:57:41,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386782269] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:41,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:41,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 07:57:41,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360582303] [2023-11-19 07:57:41,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:41,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 07:57:41,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:41,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 07:57:41,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:57:41,234 INFO L87 Difference]: Start difference. First operand 174 states and 207 transitions. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:41,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:41,690 INFO L93 Difference]: Finished difference Result 337 states and 423 transitions. [2023-11-19 07:57:41,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-19 07:57:41,691 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2023-11-19 07:57:41,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:41,692 INFO L225 Difference]: With dead ends: 337 [2023-11-19 07:57:41,692 INFO L226 Difference]: Without dead ends: 266 [2023-11-19 07:57:41,693 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=113, Invalid=267, Unknown=0, NotChecked=0, Total=380 [2023-11-19 07:57:41,693 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 655 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 655 SdHoareTripleChecker+Valid, 641 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:41,694 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [655 Valid, 641 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 07:57:41,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2023-11-19 07:57:41,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 174. [2023-11-19 07:57:41,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 169 states have (on average 1.2189349112426036) internal successors, (206), 173 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:41,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 206 transitions. [2023-11-19 07:57:41,702 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 206 transitions. Word has length 68 [2023-11-19 07:57:41,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:41,702 INFO L495 AbstractCegarLoop]: Abstraction has 174 states and 206 transitions. [2023-11-19 07:57:41,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:41,703 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 206 transitions. [2023-11-19 07:57:41,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-19 07:57:41,704 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:41,704 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:41,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-19 07:57:41,707 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-19 07:57:41,707 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:41,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1956990499, now seen corresponding path program 1 times [2023-11-19 07:57:41,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:41,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342493162] [2023-11-19 07:57:41,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:41,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:41,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:41,953 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 07:57:41,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:41,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342493162] [2023-11-19 07:57:41,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342493162] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:41,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:41,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 07:57:41,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674404036] [2023-11-19 07:57:41,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:41,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 07:57:41,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:41,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 07:57:41,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:57:41,957 INFO L87 Difference]: Start difference. First operand 174 states and 206 transitions. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:42,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:42,435 INFO L93 Difference]: Finished difference Result 269 states and 326 transitions. [2023-11-19 07:57:42,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-19 07:57:42,436 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2023-11-19 07:57:42,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:42,438 INFO L225 Difference]: With dead ends: 269 [2023-11-19 07:57:42,438 INFO L226 Difference]: Without dead ends: 262 [2023-11-19 07:57:42,438 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2023-11-19 07:57:42,439 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 628 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 546 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 628 SdHoareTripleChecker+Valid, 739 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:42,440 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [628 Valid, 739 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 546 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 07:57:42,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2023-11-19 07:57:42,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 174. [2023-11-19 07:57:42,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 169 states have (on average 1.21301775147929) internal successors, (205), 173 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:42,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 205 transitions. [2023-11-19 07:57:42,445 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 205 transitions. Word has length 68 [2023-11-19 07:57:42,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:42,446 INFO L495 AbstractCegarLoop]: Abstraction has 174 states and 205 transitions. [2023-11-19 07:57:42,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:42,446 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 205 transitions. [2023-11-19 07:57:42,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-19 07:57:42,447 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:42,447 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:42,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-19 07:57:42,448 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-19 07:57:42,448 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:42,449 INFO L85 PathProgramCache]: Analyzing trace with hash 1417579687, now seen corresponding path program 1 times [2023-11-19 07:57:42,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:42,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135680915] [2023-11-19 07:57:42,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:42,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:42,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:42,954 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 07:57:42,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:42,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135680915] [2023-11-19 07:57:42,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135680915] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:42,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:42,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-19 07:57:42,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442982371] [2023-11-19 07:57:42,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:42,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-19 07:57:42,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:42,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-19 07:57:42,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-11-19 07:57:42,958 INFO L87 Difference]: Start difference. First operand 174 states and 205 transitions. Second operand has 12 states, 12 states have (on average 5.666666666666667) internal successors, (68), 12 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:43,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:43,679 INFO L93 Difference]: Finished difference Result 450 states and 564 transitions. [2023-11-19 07:57:43,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-19 07:57:43,684 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.666666666666667) internal successors, (68), 12 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2023-11-19 07:57:43,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:43,686 INFO L225 Difference]: With dead ends: 450 [2023-11-19 07:57:43,687 INFO L226 Difference]: Without dead ends: 422 [2023-11-19 07:57:43,687 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2023-11-19 07:57:43,688 INFO L413 NwaCegarLoop]: 472 mSDtfsCounter, 893 mSDsluCounter, 2258 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 893 SdHoareTripleChecker+Valid, 2730 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:43,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [893 Valid, 2730 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-19 07:57:43,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2023-11-19 07:57:43,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 146. [2023-11-19 07:57:43,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 143 states have (on average 1.2237762237762237) internal successors, (175), 145 states have internal predecessors, (175), 0 states have call successors, (0), 0 states 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 07:57:43,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 175 transitions. [2023-11-19 07:57:43,695 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 175 transitions. Word has length 68 [2023-11-19 07:57:43,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:43,695 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 175 transitions. [2023-11-19 07:57:43,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.666666666666667) internal successors, (68), 12 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:43,696 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 175 transitions. [2023-11-19 07:57:43,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-11-19 07:57:43,697 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:43,697 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:43,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-19 07:57:43,697 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-19 07:57:43,698 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:43,698 INFO L85 PathProgramCache]: Analyzing trace with hash -1997555533, now seen corresponding path program 1 times [2023-11-19 07:57:43,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:43,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497259551] [2023-11-19 07:57:43,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:43,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:43,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:44,301 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 07:57:44,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:44,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497259551] [2023-11-19 07:57:44,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497259551] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:44,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:44,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-11-19 07:57:44,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362189079] [2023-11-19 07:57:44,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:44,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-19 07:57:44,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:44,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-19 07:57:44,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-11-19 07:57:44,304 INFO L87 Difference]: Start difference. First operand 146 states and 175 transitions. Second operand has 13 states, 13 states have (on average 5.384615384615385) internal successors, (70), 13 states have internal predecessors, (70), 0 states have call successors, (0), 0 states 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 07:57:45,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:45,334 INFO L93 Difference]: Finished difference Result 564 states and 756 transitions. [2023-11-19 07:57:45,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-19 07:57:45,334 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.384615384615385) internal successors, (70), 13 states have internal predecessors, (70), 0 states have call successors, (0), 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 70 [2023-11-19 07:57:45,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:45,338 INFO L225 Difference]: With dead ends: 564 [2023-11-19 07:57:45,338 INFO L226 Difference]: Without dead ends: 558 [2023-11-19 07:57:45,339 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2023-11-19 07:57:45,339 INFO L413 NwaCegarLoop]: 356 mSDtfsCounter, 1365 mSDsluCounter, 2250 mSDsCounter, 0 mSdLazyCounter, 635 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1365 SdHoareTripleChecker+Valid, 2606 SdHoareTripleChecker+Invalid, 640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:45,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1365 Valid, 2606 Invalid, 640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 635 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-19 07:57:45,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2023-11-19 07:57:45,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 140. [2023-11-19 07:57:45,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 138 states have (on average 1.2246376811594204) internal successors, (169), 139 states have internal predecessors, (169), 0 states have call successors, (0), 0 states 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 07:57:45,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 169 transitions. [2023-11-19 07:57:45,347 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 169 transitions. Word has length 70 [2023-11-19 07:57:45,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:45,347 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 169 transitions. [2023-11-19 07:57:45,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.384615384615385) internal successors, (70), 13 states have internal predecessors, (70), 0 states have call successors, (0), 0 states 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 07:57:45,347 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 169 transitions. [2023-11-19 07:57:45,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-11-19 07:57:45,348 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:45,348 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] [2023-11-19 07:57:45,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-11-19 07:57:45,349 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-19 07:57:45,349 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:45,349 INFO L85 PathProgramCache]: Analyzing trace with hash -1662348756, now seen corresponding path program 1 times [2023-11-19 07:57:45,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:45,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371715196] [2023-11-19 07:57:45,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:45,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:45,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:46,443 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 07:57:46,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:46,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371715196] [2023-11-19 07:57:46,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371715196] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:46,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:46,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2023-11-19 07:57:46,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467546167] [2023-11-19 07:57:46,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:46,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-11-19 07:57:46,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:46,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-11-19 07:57:46,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2023-11-19 07:57:46,445 INFO L87 Difference]: Start difference. First operand 140 states and 169 transitions. Second operand has 21 states, 21 states have (on average 3.3333333333333335) internal successors, (70), 21 states have internal predecessors, (70), 0 states have call successors, (0), 0 states 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 07:57:49,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:49,014 INFO L93 Difference]: Finished difference Result 480 states and 612 transitions. [2023-11-19 07:57:49,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-19 07:57:49,015 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.3333333333333335) internal successors, (70), 21 states have internal predecessors, (70), 0 states have call successors, (0), 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 70 [2023-11-19 07:57:49,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:49,021 INFO L225 Difference]: With dead ends: 480 [2023-11-19 07:57:49,021 INFO L226 Difference]: Without dead ends: 472 [2023-11-19 07:57:49,023 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=246, Invalid=1160, Unknown=0, NotChecked=0, Total=1406 [2023-11-19 07:57:49,024 INFO L413 NwaCegarLoop]: 389 mSDtfsCounter, 1083 mSDsluCounter, 4237 mSDsCounter, 0 mSdLazyCounter, 2354 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1083 SdHoareTripleChecker+Valid, 4626 SdHoareTripleChecker+Invalid, 2370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 2354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:49,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1083 Valid, 4626 Invalid, 2370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 2354 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-19 07:57:49,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2023-11-19 07:57:49,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 154. [2023-11-19 07:57:49,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 152 states have (on average 1.2236842105263157) internal successors, (186), 153 states have internal predecessors, (186), 0 states have call successors, (0), 0 states 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 07:57:49,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 186 transitions. [2023-11-19 07:57:49,039 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 186 transitions. Word has length 70 [2023-11-19 07:57:49,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:49,040 INFO L495 AbstractCegarLoop]: Abstraction has 154 states and 186 transitions. [2023-11-19 07:57:49,040 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.3333333333333335) internal successors, (70), 21 states have internal predecessors, (70), 0 states have call successors, (0), 0 states 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 07:57:49,040 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 186 transitions. [2023-11-19 07:57:49,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-19 07:57:49,041 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:49,041 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] [2023-11-19 07:57:49,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-11-19 07:57:49,042 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-19 07:57:49,042 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:49,042 INFO L85 PathProgramCache]: Analyzing trace with hash -1776801356, now seen corresponding path program 1 times [2023-11-19 07:57:49,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:49,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102691710] [2023-11-19 07:57:49,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:49,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:49,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:49,595 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 07:57:49,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:49,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102691710] [2023-11-19 07:57:49,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102691710] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:49,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:49,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-19 07:57:49,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038091146] [2023-11-19 07:57:49,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:49,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-19 07:57:49,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:49,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-19 07:57:49,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-11-19 07:57:49,598 INFO L87 Difference]: Start difference. First operand 154 states and 186 transitions. Second operand has 12 states, 12 states have (on average 5.916666666666667) internal successors, (71), 12 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:50,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:50,302 INFO L93 Difference]: Finished difference Result 358 states and 467 transitions. [2023-11-19 07:57:50,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-19 07:57:50,303 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.916666666666667) internal successors, (71), 12 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2023-11-19 07:57:50,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:50,305 INFO L225 Difference]: With dead ends: 358 [2023-11-19 07:57:50,305 INFO L226 Difference]: Without dead ends: 343 [2023-11-19 07:57:50,306 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2023-11-19 07:57:50,307 INFO L413 NwaCegarLoop]: 375 mSDtfsCounter, 873 mSDsluCounter, 1628 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 873 SdHoareTripleChecker+Valid, 2003 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:50,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [873 Valid, 2003 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 419 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 07:57:50,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2023-11-19 07:57:50,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 128. [2023-11-19 07:57:50,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 127 states have (on average 1.2283464566929134) internal successors, (156), 127 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 07:57:50,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 156 transitions. [2023-11-19 07:57:50,315 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 156 transitions. Word has length 71 [2023-11-19 07:57:50,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:50,315 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 156 transitions. [2023-11-19 07:57:50,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.916666666666667) internal successors, (71), 12 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:50,315 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 156 transitions. [2023-11-19 07:57:50,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-19 07:57:50,316 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:50,317 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:50,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-11-19 07:57:50,317 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-19 07:57:50,318 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:50,318 INFO L85 PathProgramCache]: Analyzing trace with hash 161471129, now seen corresponding path program 1 times [2023-11-19 07:57:50,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:50,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041272925] [2023-11-19 07:57:50,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:50,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:50,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:50,463 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 07:57:50,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:50,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041272925] [2023-11-19 07:57:50,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041272925] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:50,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:50,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 07:57:50,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213898804] [2023-11-19 07:57:50,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:50,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:57:50,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:50,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:57:50,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:57:50,466 INFO L87 Difference]: Start difference. First operand 128 states and 156 transitions. Second operand has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)