./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6af2e78-ea8b-4367-b1ba-da68cddbc034/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6af2e78-ea8b-4367-b1ba-da68cddbc034/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_f6af2e78-ea8b-4367-b1ba-da68cddbc034/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6af2e78-ea8b-4367-b1ba-da68cddbc034/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6af2e78-ea8b-4367-b1ba-da68cddbc034/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_f6af2e78-ea8b-4367-b1ba-da68cddbc034/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 a7fe14b036c76813552f56a0b0f6fa4a7e816ada4aa4a291eafd4277fae7b99b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:34:50,418 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:34:50,493 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6af2e78-ea8b-4367-b1ba-da68cddbc034/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-19 07:34:50,499 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:34:50,500 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:34:50,529 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:34:50,530 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:34:50,531 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:34:50,532 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:34:50,532 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:34:50,533 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:34:50,534 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:34:50,535 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:34:50,535 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:34:50,536 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:34:50,537 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:34:50,537 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:34:50,538 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:34:50,538 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:34:50,539 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:34:50,539 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:34:50,540 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:34:50,541 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:34:50,541 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:34:50,542 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:34:50,542 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:34:50,543 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:34:50,543 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:34:50,544 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:34:50,544 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:34:50,545 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:34:50,545 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:34:50,546 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:34:50,546 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:34:50,547 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:34:50,547 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:34:50,548 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:34:50,548 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:34:50,548 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:34:50,549 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_f6af2e78-ea8b-4367-b1ba-da68cddbc034/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6af2e78-ea8b-4367-b1ba-da68cddbc034/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a7fe14b036c76813552f56a0b0f6fa4a7e816ada4aa4a291eafd4277fae7b99b [2023-11-19 07:34:50,833 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:34:50,876 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:34:50,879 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:34:50,881 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:34:50,881 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:34:50,883 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6af2e78-ea8b-4367-b1ba-da68cddbc034/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2023-11-19 07:34:54,340 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:34:54,657 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:34:54,657 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6af2e78-ea8b-4367-b1ba-da68cddbc034/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2023-11-19 07:34:54,680 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6af2e78-ea8b-4367-b1ba-da68cddbc034/bin/uautomizer-verify-uCwYo4JHxu/data/0934150a4/e04a597332c34a4bb6a5160de0a9c387/FLAG324a5cabf [2023-11-19 07:34:54,696 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6af2e78-ea8b-4367-b1ba-da68cddbc034/bin/uautomizer-verify-uCwYo4JHxu/data/0934150a4/e04a597332c34a4bb6a5160de0a9c387 [2023-11-19 07:34:54,699 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:34:54,701 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:34:54,702 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:34:54,702 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:34:54,716 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:34:54,717 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:34:54" (1/1) ... [2023-11-19 07:34:54,719 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79404c0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:54, skipping insertion in model container [2023-11-19 07:34:54,719 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:34:54" (1/1) ... [2023-11-19 07:34:54,825 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:34:55,119 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_f6af2e78-ea8b-4367-b1ba-da68cddbc034/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[8893,8906] [2023-11-19 07:34:55,150 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_f6af2e78-ea8b-4367-b1ba-da68cddbc034/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[12165,12178] [2023-11-19 07:34:55,173 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6af2e78-ea8b-4367-b1ba-da68cddbc034/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[13321,13334] [2023-11-19 07:34:55,193 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_f6af2e78-ea8b-4367-b1ba-da68cddbc034/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[13977,13990] [2023-11-19 07:34:55,203 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_f6af2e78-ea8b-4367-b1ba-da68cddbc034/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[15456,15469] [2023-11-19 07:34:55,209 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_f6af2e78-ea8b-4367-b1ba-da68cddbc034/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[16112,16125] [2023-11-19 07:34:55,219 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_f6af2e78-ea8b-4367-b1ba-da68cddbc034/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[17096,17109] [2023-11-19 07:34:55,254 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_f6af2e78-ea8b-4367-b1ba-da68cddbc034/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[19392,19405] [2023-11-19 07:34:55,259 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_f6af2e78-ea8b-4367-b1ba-da68cddbc034/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[20051,20064] [2023-11-19 07:34:55,267 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_f6af2e78-ea8b-4367-b1ba-da68cddbc034/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[21033,21046] [2023-11-19 07:34:55,280 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_f6af2e78-ea8b-4367-b1ba-da68cddbc034/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[22824,22837] [2023-11-19 07:34:55,396 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:34:55,413 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:34:55,489 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_f6af2e78-ea8b-4367-b1ba-da68cddbc034/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[8893,8906] [2023-11-19 07:34:55,515 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_f6af2e78-ea8b-4367-b1ba-da68cddbc034/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[12165,12178] [2023-11-19 07:34:55,529 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_f6af2e78-ea8b-4367-b1ba-da68cddbc034/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[13321,13334] [2023-11-19 07:34:55,550 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_f6af2e78-ea8b-4367-b1ba-da68cddbc034/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[13977,13990] [2023-11-19 07:34:55,576 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_f6af2e78-ea8b-4367-b1ba-da68cddbc034/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[15456,15469] [2023-11-19 07:34:55,585 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_f6af2e78-ea8b-4367-b1ba-da68cddbc034/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[16112,16125] [2023-11-19 07:34:55,598 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_f6af2e78-ea8b-4367-b1ba-da68cddbc034/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[17096,17109] [2023-11-19 07:34:55,629 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_f6af2e78-ea8b-4367-b1ba-da68cddbc034/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[19392,19405] [2023-11-19 07:34:55,638 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_f6af2e78-ea8b-4367-b1ba-da68cddbc034/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[20051,20064] [2023-11-19 07:34:55,650 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_f6af2e78-ea8b-4367-b1ba-da68cddbc034/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[21033,21046] [2023-11-19 07:34:55,674 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_f6af2e78-ea8b-4367-b1ba-da68cddbc034/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[22824,22837] [2023-11-19 07:34:55,844 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:34:55,864 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:34:55,864 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:55 WrapperNode [2023-11-19 07:34:55,864 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:34:55,866 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:34:55,866 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:34:55,866 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:34:55,874 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:55" (1/1) ... [2023-11-19 07:34:55,910 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:55" (1/1) ... [2023-11-19 07:34:56,002 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1920 [2023-11-19 07:34:56,003 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:34:56,004 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:34:56,004 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:34:56,004 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:34:56,014 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:55" (1/1) ... [2023-11-19 07:34:56,015 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:55" (1/1) ... [2023-11-19 07:34:56,025 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:55" (1/1) ... [2023-11-19 07:34:56,026 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:55" (1/1) ... [2023-11-19 07:34:56,072 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:55" (1/1) ... [2023-11-19 07:34:56,100 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:55" (1/1) ... [2023-11-19 07:34:56,128 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:55" (1/1) ... [2023-11-19 07:34:56,135 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:55" (1/1) ... [2023-11-19 07:34:56,149 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:34:56,150 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:34:56,150 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:34:56,151 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:34:56,152 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:55" (1/1) ... [2023-11-19 07:34:56,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:34:56,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6af2e78-ea8b-4367-b1ba-da68cddbc034/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:34:56,198 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6af2e78-ea8b-4367-b1ba-da68cddbc034/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:34:56,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6af2e78-ea8b-4367-b1ba-da68cddbc034/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:34:56,249 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:34:56,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:34:56,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:34:56,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:34:56,469 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:34:56,471 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:34:57,873 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:34:57,887 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:34:57,888 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 07:34:57,895 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:34:57 BoogieIcfgContainer [2023-11-19 07:34:57,895 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:34:57,898 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:34:57,898 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:34:57,902 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:34:57,902 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:34:54" (1/3) ... [2023-11-19 07:34:57,903 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f2f45d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:34:57, skipping insertion in model container [2023-11-19 07:34:57,903 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:55" (2/3) ... [2023-11-19 07:34:57,904 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f2f45d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:34:57, skipping insertion in model container [2023-11-19 07:34:57,904 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:34:57" (3/3) ... [2023-11-19 07:34:57,905 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2023-11-19 07:34:57,927 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:34:57,927 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2023-11-19 07:34:57,992 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:34:57,999 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;@62d17e20, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:34:57,999 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2023-11-19 07:34:58,006 INFO L276 IsEmpty]: Start isEmpty. Operand has 358 states, 345 states have (on average 1.8376811594202898) internal successors, (634), 357 states have internal predecessors, (634), 0 states have call successors, (0), 0 states 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 07:34:58,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-19 07:34:58,020 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:34:58,021 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:34:58,022 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 07:34:58,027 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:58,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1863160701, now seen corresponding path program 1 times [2023-11-19 07:34:58,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:34:58,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613603484] [2023-11-19 07:34:58,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:58,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:34:58,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:58,754 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 07:34:58,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:34:58,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613603484] [2023-11-19 07:34:58,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613603484] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:34:58,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:34:58,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:34:58,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792129463] [2023-11-19 07:34:58,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:34:58,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:34:58,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:34:58,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:34:58,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:34:58,806 INFO L87 Difference]: Start difference. First operand has 358 states, 345 states have (on average 1.8376811594202898) internal successors, (634), 357 states have internal predecessors, (634), 0 states have call successors, (0), 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 11.6) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:59,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:34:59,383 INFO L93 Difference]: Finished difference Result 706 states and 1189 transitions. [2023-11-19 07:34:59,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:34:59,386 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2023-11-19 07:34:59,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:34:59,408 INFO L225 Difference]: With dead ends: 706 [2023-11-19 07:34:59,409 INFO L226 Difference]: Without dead ends: 425 [2023-11-19 07:34:59,414 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 07:34:59,419 INFO L413 NwaCegarLoop]: 348 mSDtfsCounter, 1872 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1872 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-19 07:34:59,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1872 Valid, 499 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-19 07:34:59,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2023-11-19 07:34:59,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 383. [2023-11-19 07:34:59,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 372 states have (on average 1.3521505376344085) internal successors, (503), 382 states have internal predecessors, (503), 0 states have call successors, (0), 0 states 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 07:34:59,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 503 transitions. [2023-11-19 07:34:59,493 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 503 transitions. Word has length 58 [2023-11-19 07:34:59,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:34:59,494 INFO L495 AbstractCegarLoop]: Abstraction has 383 states and 503 transitions. [2023-11-19 07:34:59,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:59,494 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 503 transitions. [2023-11-19 07:34:59,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-19 07:34:59,498 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:34:59,499 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 07:34:59,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:34:59,499 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 07:34:59,500 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:59,500 INFO L85 PathProgramCache]: Analyzing trace with hash -1094505509, now seen corresponding path program 1 times [2023-11-19 07:34:59,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:34:59,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396886400] [2023-11-19 07:34:59,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:59,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:34:59,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:59,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:34:59,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:34:59,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396886400] [2023-11-19 07:34:59,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396886400] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:34:59,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:34:59,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:34:59,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787454198] [2023-11-19 07:34:59,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:34:59,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:34:59,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:34:59,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:34:59,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:34:59,697 INFO L87 Difference]: Start difference. First operand 383 states and 503 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:59,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:34:59,972 INFO L93 Difference]: Finished difference Result 676 states and 909 transitions. [2023-11-19 07:34:59,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:34:59,974 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 07:34:59,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:34:59,979 INFO L225 Difference]: With dead ends: 676 [2023-11-19 07:34:59,979 INFO L226 Difference]: Without dead ends: 363 [2023-11-19 07:34:59,985 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 07:34:59,987 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 945 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 945 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:34:59,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [945 Valid, 208 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:34:59,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2023-11-19 07:35:00,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 363. [2023-11-19 07:35:00,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 352 states have (on average 1.3551136363636365) internal successors, (477), 362 states have internal predecessors, (477), 0 states have call successors, (0), 0 states 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 07:35:00,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 477 transitions. [2023-11-19 07:35:00,031 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 477 transitions. Word has length 59 [2023-11-19 07:35:00,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:35:00,031 INFO L495 AbstractCegarLoop]: Abstraction has 363 states and 477 transitions. [2023-11-19 07:35:00,032 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 07:35:00,032 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 477 transitions. [2023-11-19 07:35:00,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-19 07:35:00,036 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:35:00,036 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 07:35:00,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:35:00,037 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 07:35:00,037 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:00,037 INFO L85 PathProgramCache]: Analyzing trace with hash 568036411, now seen corresponding path program 1 times [2023-11-19 07:35:00,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:00,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710716906] [2023-11-19 07:35:00,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:00,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:00,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:00,293 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 07:35:00,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:35:00,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710716906] [2023-11-19 07:35:00,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710716906] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:35:00,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:35:00,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:35:00,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843967227] [2023-11-19 07:35:00,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:35:00,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:35:00,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:35:00,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:35:00,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:35:00,306 INFO L87 Difference]: Start difference. First operand 363 states and 477 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 07:35:00,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:35:00,489 INFO L93 Difference]: Finished difference Result 656 states and 881 transitions. [2023-11-19 07:35:00,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:35:00,490 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 07:35:00,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:35:00,497 INFO L225 Difference]: With dead ends: 656 [2023-11-19 07:35:00,497 INFO L226 Difference]: Without dead ends: 344 [2023-11-19 07:35:00,498 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 07:35:00,502 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 905 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 905 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:35:00,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [905 Valid, 197 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:35:00,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2023-11-19 07:35:00,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 344. [2023-11-19 07:35:00,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 333 states have (on average 1.3633633633633633) internal successors, (454), 343 states have internal predecessors, (454), 0 states have call successors, (0), 0 states 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 07:35:00,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 454 transitions. [2023-11-19 07:35:00,519 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 454 transitions. Word has length 60 [2023-11-19 07:35:00,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:35:00,521 INFO L495 AbstractCegarLoop]: Abstraction has 344 states and 454 transitions. [2023-11-19 07:35:00,521 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 07:35:00,522 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 454 transitions. [2023-11-19 07:35:00,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-19 07:35:00,529 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:35:00,529 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 07:35:00,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:35:00,529 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 07:35:00,531 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:00,531 INFO L85 PathProgramCache]: Analyzing trace with hash -715476529, now seen corresponding path program 1 times [2023-11-19 07:35:00,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:00,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951686222] [2023-11-19 07:35:00,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:00,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:00,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:00,760 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 07:35:00,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:35:00,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951686222] [2023-11-19 07:35:00,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951686222] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:35:00,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:35:00,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:35:00,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644742754] [2023-11-19 07:35:00,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:35:00,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:35:00,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:35:00,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:35:00,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:35:00,763 INFO L87 Difference]: Start difference. First operand 344 states and 454 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 07:35:00,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:35:00,955 INFO L93 Difference]: Finished difference Result 637 states and 856 transitions. [2023-11-19 07:35:00,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:35:00,956 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 07:35:00,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:35:00,959 INFO L225 Difference]: With dead ends: 637 [2023-11-19 07:35:00,959 INFO L226 Difference]: Without dead ends: 336 [2023-11-19 07:35:00,960 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 07:35:00,961 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 862 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 862 SdHoareTripleChecker+Valid, 193 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 07:35:00,964 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [862 Valid, 193 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:35:00,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2023-11-19 07:35:00,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 336. [2023-11-19 07:35:00,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 325 states have (on average 1.363076923076923) internal successors, (443), 335 states have internal predecessors, (443), 0 states have call successors, (0), 0 states 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 07:35:00,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 443 transitions. [2023-11-19 07:35:00,977 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 443 transitions. Word has length 61 [2023-11-19 07:35:00,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:35:00,978 INFO L495 AbstractCegarLoop]: Abstraction has 336 states and 443 transitions. [2023-11-19 07:35:00,978 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 07:35:00,978 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 443 transitions. [2023-11-19 07:35:00,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-19 07:35:00,980 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:35:00,980 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 07:35:00,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:35:00,981 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 07:35:00,982 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:00,982 INFO L85 PathProgramCache]: Analyzing trace with hash 207205371, now seen corresponding path program 1 times [2023-11-19 07:35:00,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:00,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105255669] [2023-11-19 07:35:00,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:00,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:01,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:01,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:35:01,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:35:01,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105255669] [2023-11-19 07:35:01,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105255669] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:35:01,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:35:01,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 07:35:01,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656548770] [2023-11-19 07:35:01,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:35:01,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 07:35:01,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:35:01,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 07:35:01,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:35:01,391 INFO L87 Difference]: Start difference. First operand 336 states and 443 transitions. Second operand has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 8 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 07:35:02,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:35:02,087 INFO L93 Difference]: Finished difference Result 771 states and 1050 transitions. [2023-11-19 07:35:02,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-19 07:35:02,088 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 8 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 07:35:02,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:35:02,092 INFO L225 Difference]: With dead ends: 771 [2023-11-19 07:35:02,092 INFO L226 Difference]: Without dead ends: 633 [2023-11-19 07:35:02,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2023-11-19 07:35:02,094 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 1065 mSDsluCounter, 648 mSDsCounter, 0 mSdLazyCounter, 677 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1065 SdHoareTripleChecker+Valid, 857 SdHoareTripleChecker+Invalid, 683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 677 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-19 07:35:02,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1065 Valid, 857 Invalid, 683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 677 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-19 07:35:02,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2023-11-19 07:35:02,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 336. [2023-11-19 07:35:02,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 325 states have (on average 1.36) internal successors, (442), 335 states have internal predecessors, (442), 0 states have call successors, (0), 0 states 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 07:35:02,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 442 transitions. [2023-11-19 07:35:02,108 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 442 transitions. Word has length 62 [2023-11-19 07:35:02,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:35:02,109 INFO L495 AbstractCegarLoop]: Abstraction has 336 states and 442 transitions. [2023-11-19 07:35:02,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 8 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 07:35:02,109 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 442 transitions. [2023-11-19 07:35:02,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-19 07:35:02,110 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:35:02,110 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 07:35:02,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 07:35:02,111 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 07:35:02,111 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:02,111 INFO L85 PathProgramCache]: Analyzing trace with hash -201639857, now seen corresponding path program 1 times [2023-11-19 07:35:02,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:02,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386593186] [2023-11-19 07:35:02,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:02,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:02,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:02,403 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 07:35:02,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:35:02,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386593186] [2023-11-19 07:35:02,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386593186] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:35:02,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:35:02,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 07:35:02,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905130769] [2023-11-19 07:35:02,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:35:02,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 07:35:02,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:35:02,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 07:35:02,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:35:02,405 INFO L87 Difference]: Start difference. First operand 336 states and 442 transitions. Second operand has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 8 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 07:35:03,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:35:03,107 INFO L93 Difference]: Finished difference Result 742 states and 1007 transitions. [2023-11-19 07:35:03,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-19 07:35:03,108 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 8 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 07:35:03,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:35:03,113 INFO L225 Difference]: With dead ends: 742 [2023-11-19 07:35:03,113 INFO L226 Difference]: Without dead ends: 737 [2023-11-19 07:35:03,114 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 07:35:03,114 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 1163 mSDsluCounter, 672 mSDsCounter, 0 mSdLazyCounter, 695 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1163 SdHoareTripleChecker+Valid, 885 SdHoareTripleChecker+Invalid, 701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-19 07:35:03,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1163 Valid, 885 Invalid, 701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 695 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-19 07:35:03,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 737 states. [2023-11-19 07:35:03,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 737 to 336. [2023-11-19 07:35:03,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 325 states have (on average 1.356923076923077) internal successors, (441), 335 states have internal predecessors, (441), 0 states have call successors, (0), 0 states 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 07:35:03,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 441 transitions. [2023-11-19 07:35:03,130 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 441 transitions. Word has length 62 [2023-11-19 07:35:03,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:35:03,130 INFO L495 AbstractCegarLoop]: Abstraction has 336 states and 441 transitions. [2023-11-19 07:35:03,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 8 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 07:35:03,131 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 441 transitions. [2023-11-19 07:35:03,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-19 07:35:03,132 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:35:03,132 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 07:35:03,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 07:35:03,132 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 07:35:03,133 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:03,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1938423665, now seen corresponding path program 1 times [2023-11-19 07:35:03,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:03,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123464942] [2023-11-19 07:35:03,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:03,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:03,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:03,614 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 07:35:03,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:35:03,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123464942] [2023-11-19 07:35:03,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123464942] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:35:03,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:35:03,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-19 07:35:03,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368023029] [2023-11-19 07:35:03,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:35:03,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-19 07:35:03,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:35:03,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-19 07:35:03,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-11-19 07:35:03,618 INFO L87 Difference]: Start difference. First operand 336 states and 441 transitions. Second operand has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 10 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 07:35:04,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:35:04,361 INFO L93 Difference]: Finished difference Result 793 states and 1079 transitions. [2023-11-19 07:35:04,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-19 07:35:04,362 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 10 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 07:35:04,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:35:04,366 INFO L225 Difference]: With dead ends: 793 [2023-11-19 07:35:04,366 INFO L226 Difference]: Without dead ends: 625 [2023-11-19 07:35:04,367 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380 [2023-11-19 07:35:04,369 INFO L413 NwaCegarLoop]: 222 mSDtfsCounter, 1702 mSDsluCounter, 843 mSDsCounter, 0 mSdLazyCounter, 796 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1702 SdHoareTripleChecker+Valid, 1065 SdHoareTripleChecker+Invalid, 805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-19 07:35:04,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1702 Valid, 1065 Invalid, 805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 796 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-19 07:35:04,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625 states. [2023-11-19 07:35:04,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625 to 336. [2023-11-19 07:35:04,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 325 states have (on average 1.3507692307692307) internal successors, (439), 335 states have internal predecessors, (439), 0 states have call successors, (0), 0 states 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 07:35:04,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 439 transitions. [2023-11-19 07:35:04,382 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 439 transitions. Word has length 62 [2023-11-19 07:35:04,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:35:04,384 INFO L495 AbstractCegarLoop]: Abstraction has 336 states and 439 transitions. [2023-11-19 07:35:04,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 10 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 07:35:04,384 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 439 transitions. [2023-11-19 07:35:04,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-19 07:35:04,385 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:35:04,385 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 07:35:04,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 07:35:04,386 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-19 07:35:04,386 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:04,386 INFO L85 PathProgramCache]: Analyzing trace with hash -1233191565, now seen corresponding path program 1 times [2023-11-19 07:35:04,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:04,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950397855] [2023-11-19 07:35:04,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:04,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:04,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:04,786 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 07:35:04,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:35:04,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950397855] [2023-11-19 07:35:04,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950397855] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:35:04,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:35:04,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-19 07:35:04,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345954672] [2023-11-19 07:35:04,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:35:04,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-19 07:35:04,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:35:04,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-19 07:35:04,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-11-19 07:35:04,789 INFO L87 Difference]: Start difference. First operand 336 states and 439 transitions. Second operand has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 10 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 07:35:05,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:35:05,613 INFO L93 Difference]: Finished difference Result 734 states and 995 transitions. [2023-11-19 07:35:05,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-19 07:35:05,614 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 10 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 07:35:05,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:35:05,619 INFO L225 Difference]: With dead ends: 734 [2023-11-19 07:35:05,619 INFO L226 Difference]: Without dead ends: 729 [2023-11-19 07:35:05,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380 [2023-11-19 07:35:05,622 INFO L413 NwaCegarLoop]: 217 mSDtfsCounter, 1922 mSDsluCounter, 858 mSDsCounter, 0 mSdLazyCounter, 797 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1922 SdHoareTripleChecker+Valid, 1075 SdHoareTripleChecker+Invalid, 806 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 797 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-19 07:35:05,622 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1922 Valid, 1075 Invalid, 806 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 797 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-19 07:35:05,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 729 states. [2023-11-19 07:35:05,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 729 to 336. [2023-11-19 07:35:05,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 325 states have (on average 1.3446153846153845) internal successors, (437), 335 states have internal predecessors, (437), 0 states have call successors, (0), 0 states 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 07:35:05,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 437 transitions. [2023-11-19 07:35:05,636 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 437 transitions. Word has length 62 [2023-11-19 07:35:05,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:35:05,637 INFO L495 AbstractCegarLoop]: Abstraction has 336 states and 437 transitions. [2023-11-19 07:35:05,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 10 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 07:35:05,637 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 437 transitions. [2023-11-19 07:35:05,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-19 07:35:05,643 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:35:05,643 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 07:35:05,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-19 07:35:05,643 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-19 07:35:05,644 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:05,644 INFO L85 PathProgramCache]: Analyzing trace with hash 679005537, now seen corresponding path program 1 times [2023-11-19 07:35:05,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:05,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329885868] [2023-11-19 07:35:05,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:05,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:05,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:06,093 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 07:35:06,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:35:06,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329885868] [2023-11-19 07:35:06,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329885868] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:35:06,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:35:06,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-19 07:35:06,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905505268] [2023-11-19 07:35:06,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:35:06,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-19 07:35:06,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:35:06,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-19 07:35:06,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-11-19 07:35:06,097 INFO L87 Difference]: Start difference. First operand 336 states and 437 transitions. Second operand has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 10 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 07:35:07,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:35:07,087 INFO L93 Difference]: Finished difference Result 766 states and 1043 transitions. [2023-11-19 07:35:07,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-19 07:35:07,088 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 10 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 07:35:07,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:35:07,093 INFO L225 Difference]: With dead ends: 766 [2023-11-19 07:35:07,093 INFO L226 Difference]: Without dead ends: 749 [2023-11-19 07:35:07,094 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380 [2023-11-19 07:35:07,094 INFO L413 NwaCegarLoop]: 309 mSDtfsCounter, 1198 mSDsluCounter, 1231 mSDsCounter, 0 mSdLazyCounter, 1135 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1198 SdHoareTripleChecker+Valid, 1540 SdHoareTripleChecker+Invalid, 1144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-19 07:35:07,095 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1198 Valid, 1540 Invalid, 1144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1135 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-19 07:35:07,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 749 states. [2023-11-19 07:35:07,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 749 to 336. [2023-11-19 07:35:07,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 325 states have (on average 1.3384615384615384) internal successors, (435), 335 states have internal predecessors, (435), 0 states have call successors, (0), 0 states 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 07:35:07,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 435 transitions. [2023-11-19 07:35:07,111 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 435 transitions. Word has length 62 [2023-11-19 07:35:07,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:35:07,111 INFO L495 AbstractCegarLoop]: Abstraction has 336 states and 435 transitions. [2023-11-19 07:35:07,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 10 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 07:35:07,112 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 435 transitions. [2023-11-19 07:35:07,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-19 07:35:07,113 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:35:07,113 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:35:07,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-19 07:35:07,114 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-19 07:35:07,114 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:07,115 INFO L85 PathProgramCache]: Analyzing trace with hash -2031197374, now seen corresponding path program 1 times [2023-11-19 07:35:07,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:07,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368344524] [2023-11-19 07:35:07,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:07,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:07,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:07,398 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 07:35:07,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:35:07,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368344524] [2023-11-19 07:35:07,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368344524] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:35:07,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:35:07,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 07:35:07,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847560241] [2023-11-19 07:35:07,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:35:07,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 07:35:07,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:35:07,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 07:35:07,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:35:07,401 INFO L87 Difference]: Start difference. First operand 336 states and 435 transitions. Second operand has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:08,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:35:08,130 INFO L93 Difference]: Finished difference Result 846 states and 1154 transitions. [2023-11-19 07:35:08,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-19 07:35:08,130 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2023-11-19 07:35:08,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:35:08,135 INFO L225 Difference]: With dead ends: 846 [2023-11-19 07:35:08,135 INFO L226 Difference]: Without dead ends: 737 [2023-11-19 07:35:08,136 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 07:35:08,137 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 1369 mSDsluCounter, 722 mSDsCounter, 0 mSdLazyCounter, 701 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1369 SdHoareTripleChecker+Valid, 951 SdHoareTripleChecker+Invalid, 708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-19 07:35:08,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1369 Valid, 951 Invalid, 708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 701 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-19 07:35:08,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 737 states. [2023-11-19 07:35:08,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 737 to 336. [2023-11-19 07:35:08,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 325 states have (on average 1.3353846153846154) internal successors, (434), 335 states have internal predecessors, (434), 0 states have call successors, (0), 0 states 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 07:35:08,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 434 transitions. [2023-11-19 07:35:08,163 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 434 transitions. Word has length 64 [2023-11-19 07:35:08,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:35:08,164 INFO L495 AbstractCegarLoop]: Abstraction has 336 states and 434 transitions. [2023-11-19 07:35:08,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:08,164 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 434 transitions. [2023-11-19 07:35:08,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-19 07:35:08,165 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:35:08,165 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:35:08,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-19 07:35:08,166 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-19 07:35:08,166 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:08,167 INFO L85 PathProgramCache]: Analyzing trace with hash -119000272, now seen corresponding path program 1 times [2023-11-19 07:35:08,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:08,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031998512] [2023-11-19 07:35:08,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:08,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:08,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:08,509 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 07:35:08,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:35:08,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031998512] [2023-11-19 07:35:08,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031998512] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:35:08,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:35:08,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 07:35:08,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089213554] [2023-11-19 07:35:08,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:35:08,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 07:35:08,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:35:08,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 07:35:08,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:35:08,512 INFO L87 Difference]: Start difference. First operand 336 states and 434 transitions. Second operand has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:09,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:35:09,357 INFO L93 Difference]: Finished difference Result 878 states and 1202 transitions. [2023-11-19 07:35:09,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-19 07:35:09,358 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2023-11-19 07:35:09,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:35:09,362 INFO L225 Difference]: With dead ends: 878 [2023-11-19 07:35:09,362 INFO L226 Difference]: Without dead ends: 757 [2023-11-19 07:35:09,363 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 07:35:09,364 INFO L413 NwaCegarLoop]: 319 mSDtfsCounter, 1195 mSDsluCounter, 910 mSDsCounter, 0 mSdLazyCounter, 896 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1195 SdHoareTripleChecker+Valid, 1229 SdHoareTripleChecker+Invalid, 903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 896 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-19 07:35:09,364 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1195 Valid, 1229 Invalid, 903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 896 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-19 07:35:09,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 757 states. [2023-11-19 07:35:09,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 757 to 336. [2023-11-19 07:35:09,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 325 states have (on average 1.3323076923076924) internal successors, (433), 335 states have internal predecessors, (433), 0 states have call successors, (0), 0 states 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 07:35:09,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 433 transitions. [2023-11-19 07:35:09,378 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 433 transitions. Word has length 64 [2023-11-19 07:35:09,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:35:09,379 INFO L495 AbstractCegarLoop]: Abstraction has 336 states and 433 transitions. [2023-11-19 07:35:09,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:09,379 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 433 transitions. [2023-11-19 07:35:09,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-19 07:35:09,380 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:35:09,381 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:35:09,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-19 07:35:09,381 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-19 07:35:09,381 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:09,382 INFO L85 PathProgramCache]: Analyzing trace with hash 153578736, now seen corresponding path program 1 times [2023-11-19 07:35:09,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:09,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930638242] [2023-11-19 07:35:09,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:09,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:09,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:09,665 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 07:35:09,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:35:09,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930638242] [2023-11-19 07:35:09,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930638242] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:35:09,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:35:09,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 07:35:09,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205586239] [2023-11-19 07:35:09,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:35:09,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 07:35:09,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:35:09,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 07:35:09,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:35:09,668 INFO L87 Difference]: Start difference. First operand 336 states and 433 transitions. Second operand has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:10,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:35:10,403 INFO L93 Difference]: Finished difference Result 873 states and 1194 transitions. [2023-11-19 07:35:10,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-19 07:35:10,404 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2023-11-19 07:35:10,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:35:10,408 INFO L225 Difference]: With dead ends: 873 [2023-11-19 07:35:10,408 INFO L226 Difference]: Without dead ends: 757 [2023-11-19 07:35:10,409 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2023-11-19 07:35:10,410 INFO L413 NwaCegarLoop]: 234 mSDtfsCounter, 1720 mSDsluCounter, 826 mSDsCounter, 0 mSdLazyCounter, 718 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1720 SdHoareTripleChecker+Valid, 1060 SdHoareTripleChecker+Invalid, 725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 718 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-19 07:35:10,410 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1720 Valid, 1060 Invalid, 725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 718 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-19 07:35:10,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 757 states. [2023-11-19 07:35:10,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 757 to 336. [2023-11-19 07:35:10,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 325 states have (on average 1.3292307692307692) internal successors, (432), 335 states have internal predecessors, (432), 0 states have call successors, (0), 0 states 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 07:35:10,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 432 transitions. [2023-11-19 07:35:10,429 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 432 transitions. Word has length 64 [2023-11-19 07:35:10,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:35:10,429 INFO L495 AbstractCegarLoop]: Abstraction has 336 states and 432 transitions. [2023-11-19 07:35:10,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:10,430 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 432 transitions. [2023-11-19 07:35:10,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-19 07:35:10,431 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:35:10,431 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:35:10,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-19 07:35:10,431 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-19 07:35:10,432 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:10,432 INFO L85 PathProgramCache]: Analyzing trace with hash -1520301075, now seen corresponding path program 1 times [2023-11-19 07:35:10,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:10,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602330813] [2023-11-19 07:35:10,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:10,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:10,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:10,701 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 07:35:10,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:35:10,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602330813] [2023-11-19 07:35:10,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602330813] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:35:10,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:35:10,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 07:35:10,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880470821] [2023-11-19 07:35:10,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:35:10,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 07:35:10,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:35:10,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 07:35:10,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:35:10,705 INFO L87 Difference]: Start difference. First operand 336 states and 432 transitions. Second operand has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:11,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:35:11,378 INFO L93 Difference]: Finished difference Result 843 states and 1148 transitions. [2023-11-19 07:35:11,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-19 07:35:11,378 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2023-11-19 07:35:11,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:35:11,383 INFO L225 Difference]: With dead ends: 843 [2023-11-19 07:35:11,383 INFO L226 Difference]: Without dead ends: 737 [2023-11-19 07:35:11,384 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 07:35:11,385 INFO L413 NwaCegarLoop]: 241 mSDtfsCounter, 923 mSDsluCounter, 771 mSDsCounter, 0 mSdLazyCounter, 733 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 923 SdHoareTripleChecker+Valid, 1012 SdHoareTripleChecker+Invalid, 739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 733 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-19 07:35:11,385 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [923 Valid, 1012 Invalid, 739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 733 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-19 07:35:11,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 737 states. [2023-11-19 07:35:11,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 737 to 336. [2023-11-19 07:35:11,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 325 states have (on average 1.3261538461538462) internal successors, (431), 335 states have internal predecessors, (431), 0 states have call successors, (0), 0 states 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 07:35:11,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 431 transitions. [2023-11-19 07:35:11,399 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 431 transitions. Word has length 64 [2023-11-19 07:35:11,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:35:11,400 INFO L495 AbstractCegarLoop]: Abstraction has 336 states and 431 transitions. [2023-11-19 07:35:11,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:11,400 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 431 transitions. [2023-11-19 07:35:11,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-19 07:35:11,401 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:35:11,401 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:35:11,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-19 07:35:11,402 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-19 07:35:11,402 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:11,403 INFO L85 PathProgramCache]: Analyzing trace with hash -164767034, now seen corresponding path program 1 times [2023-11-19 07:35:11,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:11,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816218673] [2023-11-19 07:35:11,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:11,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:11,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:11,648 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 07:35:11,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:35:11,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816218673] [2023-11-19 07:35:11,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816218673] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:35:11,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:35:11,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 07:35:11,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516702545] [2023-11-19 07:35:11,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:35:11,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 07:35:11,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:35:11,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 07:35:11,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:35:11,651 INFO L87 Difference]: Start difference. First operand 336 states and 431 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:12,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:35:12,052 INFO L93 Difference]: Finished difference Result 682 states and 885 transitions. [2023-11-19 07:35:12,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 07:35:12,053 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2023-11-19 07:35:12,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:35:12,056 INFO L225 Difference]: With dead ends: 682 [2023-11-19 07:35:12,056 INFO L226 Difference]: Without dead ends: 499 [2023-11-19 07:35:12,057 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 07:35:12,057 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 1759 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1759 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:35:12,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1759 Valid, 464 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 07:35:12,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2023-11-19 07:35:12,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 336. [2023-11-19 07:35:12,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 325 states have (on average 1.323076923076923) internal successors, (430), 335 states have internal predecessors, (430), 0 states have call successors, (0), 0 states 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 07:35:12,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 430 transitions. [2023-11-19 07:35:12,069 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 430 transitions. Word has length 64 [2023-11-19 07:35:12,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:35:12,069 INFO L495 AbstractCegarLoop]: Abstraction has 336 states and 430 transitions. [2023-11-19 07:35:12,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:12,070 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 430 transitions. [2023-11-19 07:35:12,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-19 07:35:12,071 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:35:12,071 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:35:12,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-19 07:35:12,072 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 07:35:12,072 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:12,072 INFO L85 PathProgramCache]: Analyzing trace with hash 370944031, now seen corresponding path program 1 times [2023-11-19 07:35:12,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:12,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206981072] [2023-11-19 07:35:12,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:12,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:12,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:12,676 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 07:35:12,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:35:12,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206981072] [2023-11-19 07:35:12,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206981072] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:35:12,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:35:12,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-19 07:35:12,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469426515] [2023-11-19 07:35:12,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:35:12,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-19 07:35:12,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:35:12,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-19 07:35:12,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-11-19 07:35:12,679 INFO L87 Difference]: Start difference. First operand 336 states and 430 transitions. Second operand has 11 states, 11 states have (on average 6.0) internal successors, (66), 11 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:13,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:35:13,337 INFO L93 Difference]: Finished difference Result 850 states and 1135 transitions. [2023-11-19 07:35:13,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-19 07:35:13,338 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.0) internal successors, (66), 11 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2023-11-19 07:35:13,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:35:13,342 INFO L225 Difference]: With dead ends: 850 [2023-11-19 07:35:13,342 INFO L226 Difference]: Without dead ends: 683 [2023-11-19 07:35:13,343 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=134, Invalid=328, Unknown=0, NotChecked=0, Total=462 [2023-11-19 07:35:13,343 INFO L413 NwaCegarLoop]: 337 mSDtfsCounter, 1574 mSDsluCounter, 1024 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1574 SdHoareTripleChecker+Valid, 1361 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:35:13,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1574 Valid, 1361 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 07:35:13,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 683 states. [2023-11-19 07:35:13,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 683 to 273. [2023-11-19 07:35:13,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 266 states have (on average 1.3270676691729324) internal successors, (353), 272 states have internal predecessors, (353), 0 states have call successors, (0), 0 states 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 07:35:13,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 353 transitions. [2023-11-19 07:35:13,358 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 353 transitions. Word has length 66 [2023-11-19 07:35:13,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:35:13,359 INFO L495 AbstractCegarLoop]: Abstraction has 273 states and 353 transitions. [2023-11-19 07:35:13,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.0) internal successors, (66), 11 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:13,359 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 353 transitions. [2023-11-19 07:35:13,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-19 07:35:13,360 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:35:13,360 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:35:13,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-19 07:35:13,361 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 07:35:13,361 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:13,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1787778406, now seen corresponding path program 1 times [2023-11-19 07:35:13,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:13,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91125618] [2023-11-19 07:35:13,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:13,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:13,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:13,973 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 07:35:13,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:35:13,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91125618] [2023-11-19 07:35:13,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91125618] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:35:13,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:35:13,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-19 07:35:13,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053684932] [2023-11-19 07:35:13,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:35:13,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-19 07:35:13,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:35:13,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-19 07:35:13,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-11-19 07:35:13,975 INFO L87 Difference]: Start difference. First operand 273 states and 353 transitions. Second operand has 12 states, 12 states have (on average 5.5) internal successors, (66), 12 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:14,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:35:14,755 INFO L93 Difference]: Finished difference Result 1005 states and 1406 transitions. [2023-11-19 07:35:14,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-19 07:35:14,756 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.5) internal successors, (66), 12 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2023-11-19 07:35:14,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:35:14,761 INFO L225 Difference]: With dead ends: 1005 [2023-11-19 07:35:14,761 INFO L226 Difference]: Without dead ends: 879 [2023-11-19 07:35:14,762 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 07:35:14,762 INFO L413 NwaCegarLoop]: 506 mSDtfsCounter, 1442 mSDsluCounter, 1632 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1442 SdHoareTripleChecker+Valid, 2138 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:35:14,763 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1442 Valid, 2138 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 425 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 07:35:14,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 879 states. [2023-11-19 07:35:14,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 879 to 251. [2023-11-19 07:35:14,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 246 states have (on average 1.3130081300813008) internal successors, (323), 250 states have internal predecessors, (323), 0 states have call successors, (0), 0 states 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 07:35:14,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 323 transitions. [2023-11-19 07:35:14,777 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 323 transitions. Word has length 66 [2023-11-19 07:35:14,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:35:14,778 INFO L495 AbstractCegarLoop]: Abstraction has 251 states and 323 transitions. [2023-11-19 07:35:14,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.5) internal successors, (66), 12 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:14,778 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 323 transitions. [2023-11-19 07:35:14,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-19 07:35:14,779 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:35:14,780 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:35:14,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-19 07:35:14,780 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 07:35:14,781 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:14,781 INFO L85 PathProgramCache]: Analyzing trace with hash 1127331716, now seen corresponding path program 1 times [2023-11-19 07:35:14,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:14,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717838404] [2023-11-19 07:35:14,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:14,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:14,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:16,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:35:16,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:35:16,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717838404] [2023-11-19 07:35:16,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717838404] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:35:16,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:35:16,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2023-11-19 07:35:16,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786868466] [2023-11-19 07:35:16,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:35:16,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-11-19 07:35:16,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:35:16,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-11-19 07:35:16,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=458, Unknown=0, NotChecked=0, Total=506 [2023-11-19 07:35:16,337 INFO L87 Difference]: Start difference. First operand 251 states and 323 transitions. Second operand has 23 states, 23 states have (on average 2.869565217391304) internal successors, (66), 23 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:19,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:35:19,088 INFO L93 Difference]: Finished difference Result 283 states and 355 transitions. [2023-11-19 07:35:19,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-11-19 07:35:19,089 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.869565217391304) internal successors, (66), 23 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2023-11-19 07:35:19,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:35:19,090 INFO L225 Difference]: With dead ends: 283 [2023-11-19 07:35:19,091 INFO L226 Difference]: Without dead ends: 271 [2023-11-19 07:35:19,092 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=328, Invalid=1652, Unknown=0, NotChecked=0, Total=1980 [2023-11-19 07:35:19,093 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 617 mSDsluCounter, 2258 mSDsCounter, 0 mSdLazyCounter, 1404 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 617 SdHoareTripleChecker+Valid, 2412 SdHoareTripleChecker+Invalid, 1415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:35:19,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [617 Valid, 2412 Invalid, 1415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1404 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-19 07:35:19,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2023-11-19 07:35:19,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 257. [2023-11-19 07:35:19,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 252 states have (on average 1.3095238095238095) internal successors, (330), 256 states have internal predecessors, (330), 0 states have call successors, (0), 0 states 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 07:35:19,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 330 transitions. [2023-11-19 07:35:19,100 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 330 transitions. Word has length 66 [2023-11-19 07:35:19,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:35:19,101 INFO L495 AbstractCegarLoop]: Abstraction has 257 states and 330 transitions. [2023-11-19 07:35:19,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.869565217391304) internal successors, (66), 23 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:19,101 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 330 transitions. [2023-11-19 07:35:19,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-19 07:35:19,102 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:35:19,102 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:35:19,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-19 07:35:19,103 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 07:35:19,103 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:19,103 INFO L85 PathProgramCache]: Analyzing trace with hash -653185432, now seen corresponding path program 1 times [2023-11-19 07:35:19,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:19,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279969383] [2023-11-19 07:35:19,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:19,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:19,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:20,372 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 07:35:20,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:35:20,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279969383] [2023-11-19 07:35:20,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279969383] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:35:20,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:35:20,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2023-11-19 07:35:20,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084940181] [2023-11-19 07:35:20,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:35:20,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-11-19 07:35:20,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:35:20,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-11-19 07:35:20,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=446, Unknown=0, NotChecked=0, Total=506 [2023-11-19 07:35:20,374 INFO L87 Difference]: Start difference. First operand 257 states and 330 transitions. Second operand has 23 states, 23 states have (on average 2.869565217391304) internal successors, (66), 23 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:22,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:35:22,227 INFO L93 Difference]: Finished difference Result 379 states and 500 transitions. [2023-11-19 07:35:22,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-11-19 07:35:22,227 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.869565217391304) internal successors, (66), 23 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2023-11-19 07:35:22,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:35:22,229 INFO L225 Difference]: With dead ends: 379 [2023-11-19 07:35:22,229 INFO L226 Difference]: Without dead ends: 268 [2023-11-19 07:35:22,231 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 277 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=312, Invalid=1494, Unknown=0, NotChecked=0, Total=1806 [2023-11-19 07:35:22,231 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 633 mSDsluCounter, 1959 mSDsCounter, 0 mSdLazyCounter, 1203 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 633 SdHoareTripleChecker+Valid, 2115 SdHoareTripleChecker+Invalid, 1216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-19 07:35:22,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [633 Valid, 2115 Invalid, 1216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1203 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-19 07:35:22,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2023-11-19 07:35:22,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 256. [2023-11-19 07:35:22,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 251 states have (on average 1.302788844621514) internal successors, (327), 255 states have internal predecessors, (327), 0 states have call successors, (0), 0 states 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 07:35:22,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 327 transitions. [2023-11-19 07:35:22,240 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 327 transitions. Word has length 66 [2023-11-19 07:35:22,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:35:22,240 INFO L495 AbstractCegarLoop]: Abstraction has 256 states and 327 transitions. [2023-11-19 07:35:22,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.869565217391304) internal successors, (66), 23 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:22,240 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 327 transitions. [2023-11-19 07:35:22,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-19 07:35:22,241 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:35:22,241 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 07:35:22,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-19 07:35:22,242 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-19 07:35:22,242 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:22,243 INFO L85 PathProgramCache]: Analyzing trace with hash 1241294901, now seen corresponding path program 1 times [2023-11-19 07:35:22,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:22,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835087915] [2023-11-19 07:35:22,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:22,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:22,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:23,053 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 07:35:23,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:35:23,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835087915] [2023-11-19 07:35:23,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835087915] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:35:23,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:35:23,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-11-19 07:35:23,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754689036] [2023-11-19 07:35:23,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:35:23,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-19 07:35:23,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:35:23,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-19 07:35:23,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2023-11-19 07:35:23,056 INFO L87 Difference]: Start difference. First operand 256 states and 327 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 07:35:23,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:35:23,591 INFO L93 Difference]: Finished difference Result 513 states and 688 transitions. [2023-11-19 07:35:23,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-19 07:35:23,592 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 07:35:23,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:35:23,595 INFO L225 Difference]: With dead ends: 513 [2023-11-19 07:35:23,595 INFO L226 Difference]: Without dead ends: 376 [2023-11-19 07:35:23,595 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2023-11-19 07:35:23,596 INFO L413 NwaCegarLoop]: 282 mSDtfsCounter, 243 mSDsluCounter, 2202 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 2484 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:35:23,597 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 2484 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 07:35:23,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2023-11-19 07:35:23,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 247. [2023-11-19 07:35:23,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 242 states have (on average 1.2933884297520661) internal successors, (313), 246 states have internal predecessors, (313), 0 states have call successors, (0), 0 states 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 07:35:23,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 313 transitions. [2023-11-19 07:35:23,605 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 313 transitions. Word has length 67 [2023-11-19 07:35:23,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:35:23,605 INFO L495 AbstractCegarLoop]: Abstraction has 247 states and 313 transitions. [2023-11-19 07:35:23,606 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 07:35:23,606 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 313 transitions. [2023-11-19 07:35:23,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-19 07:35:23,607 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:35:23,607 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 07:35:23,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-19 07:35:23,607 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-19 07:35:23,608 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:23,608 INFO L85 PathProgramCache]: Analyzing trace with hash -710008920, now seen corresponding path program 1 times [2023-11-19 07:35:23,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:23,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718336238] [2023-11-19 07:35:23,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:23,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:23,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:23,909 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 07:35:23,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:35:23,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718336238] [2023-11-19 07:35:23,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718336238] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:35:23,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:35:23,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 07:35:23,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467924803] [2023-11-19 07:35:23,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:35:23,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 07:35:23,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:35:23,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 07:35:23,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:35:23,913 INFO L87 Difference]: Start difference. First operand 247 states and 313 transitions. Second operand has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 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 07:35:24,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:35:24,400 INFO L93 Difference]: Finished difference Result 533 states and 713 transitions. [2023-11-19 07:35:24,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-19 07:35:24,401 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 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 07:35:24,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:35:24,403 INFO L225 Difference]: With dead ends: 533 [2023-11-19 07:35:24,403 INFO L226 Difference]: Without dead ends: 399 [2023-11-19 07:35:24,404 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 07:35:24,405 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 511 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 511 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:35:24,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [511 Valid, 597 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 07:35:24,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2023-11-19 07:35:24,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 247. [2023-11-19 07:35:24,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 242 states have (on average 1.2851239669421488) internal successors, (311), 246 states have internal predecessors, (311), 0 states have call successors, (0), 0 states 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 07:35:24,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 311 transitions. [2023-11-19 07:35:24,414 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 311 transitions. Word has length 67 [2023-11-19 07:35:24,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:35:24,415 INFO L495 AbstractCegarLoop]: Abstraction has 247 states and 311 transitions. [2023-11-19 07:35:24,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 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 07:35:24,415 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 311 transitions. [2023-11-19 07:35:24,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-19 07:35:24,416 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:35:24,416 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:35:24,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-19 07:35:24,417 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-19 07:35:24,417 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:24,417 INFO L85 PathProgramCache]: Analyzing trace with hash 1303055616, now seen corresponding path program 1 times [2023-11-19 07:35:24,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:24,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585965019] [2023-11-19 07:35:24,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:24,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:24,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:24,884 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 07:35:24,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:35:24,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585965019] [2023-11-19 07:35:24,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585965019] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:35:24,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:35:24,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-19 07:35:24,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285239782] [2023-11-19 07:35:24,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:35:24,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-19 07:35:24,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:35:24,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-19 07:35:24,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-11-19 07:35:24,889 INFO L87 Difference]: Start difference. First operand 247 states and 311 transitions. Second operand has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 11 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:26,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:35:26,020 INFO L93 Difference]: Finished difference Result 685 states and 925 transitions. [2023-11-19 07:35:26,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-19 07:35:26,021 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 11 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2023-11-19 07:35:26,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:35:26,025 INFO L225 Difference]: With dead ends: 685 [2023-11-19 07:35:26,025 INFO L226 Difference]: Without dead ends: 678 [2023-11-19 07:35:26,025 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=244, Invalid=626, Unknown=0, NotChecked=0, Total=870 [2023-11-19 07:35:26,026 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 1811 mSDsluCounter, 778 mSDsCounter, 0 mSdLazyCounter, 759 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1811 SdHoareTripleChecker+Valid, 958 SdHoareTripleChecker+Invalid, 805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-19 07:35:26,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1811 Valid, 958 Invalid, 805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 759 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-19 07:35:26,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2023-11-19 07:35:26,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 247. [2023-11-19 07:35:26,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 242 states have (on average 1.28099173553719) internal successors, (310), 246 states have internal predecessors, (310), 0 states have call successors, (0), 0 states 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 07:35:26,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 310 transitions. [2023-11-19 07:35:26,040 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 310 transitions. Word has length 67 [2023-11-19 07:35:26,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:35:26,041 INFO L495 AbstractCegarLoop]: Abstraction has 247 states and 310 transitions. [2023-11-19 07:35:26,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 11 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:26,041 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 310 transitions. [2023-11-19 07:35:26,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-19 07:35:26,042 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:35:26,042 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 07:35:26,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-19 07:35:26,045 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-19 07:35:26,046 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:26,046 INFO L85 PathProgramCache]: Analyzing trace with hash 926661436, now seen corresponding path program 1 times [2023-11-19 07:35:26,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:26,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82165410] [2023-11-19 07:35:26,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:26,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:26,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:26,493 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 07:35:26,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:35:26,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82165410] [2023-11-19 07:35:26,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82165410] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:35:26,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:35:26,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-19 07:35:26,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691196187] [2023-11-19 07:35:26,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:35:26,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-19 07:35:26,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:35:26,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-19 07:35:26,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-11-19 07:35:26,496 INFO L87 Difference]: Start difference. First operand 247 states and 310 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 07:35:27,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:35:27,000 INFO L93 Difference]: Finished difference Result 399 states and 515 transitions. [2023-11-19 07:35:27,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-19 07:35:27,004 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 07:35:27,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:35:27,006 INFO L225 Difference]: With dead ends: 399 [2023-11-19 07:35:27,006 INFO L226 Difference]: Without dead ends: 395 [2023-11-19 07:35:27,006 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=96, Invalid=284, Unknown=0, NotChecked=0, Total=380 [2023-11-19 07:35:27,007 INFO L413 NwaCegarLoop]: 261 mSDtfsCounter, 403 mSDsluCounter, 893 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 403 SdHoareTripleChecker+Valid, 1154 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:35:27,007 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [403 Valid, 1154 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 07:35:27,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2023-11-19 07:35:27,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 242. [2023-11-19 07:35:27,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 238 states have (on average 1.281512605042017) internal successors, (305), 241 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 07:35:27,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 305 transitions. [2023-11-19 07:35:27,018 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 305 transitions. Word has length 67 [2023-11-19 07:35:27,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:35:27,018 INFO L495 AbstractCegarLoop]: Abstraction has 242 states and 305 transitions. [2023-11-19 07:35:27,019 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 07:35:27,019 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 305 transitions. [2023-11-19 07:35:27,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-19 07:35:27,020 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:35:27,020 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 07:35:27,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-19 07:35:27,020 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 07:35:27,021 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:27,021 INFO L85 PathProgramCache]: Analyzing trace with hash 763644804, now seen corresponding path program 1 times [2023-11-19 07:35:27,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:27,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81040556] [2023-11-19 07:35:27,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:27,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:27,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:27,518 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 07:35:27,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:35:27,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81040556] [2023-11-19 07:35:27,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81040556] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:35:27,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:35:27,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-19 07:35:27,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632786767] [2023-11-19 07:35:27,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:35:27,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-19 07:35:27,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:35:27,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-19 07:35:27,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-11-19 07:35:27,521 INFO L87 Difference]: Start difference. First operand 242 states and 305 transitions. Second operand has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 12 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 07:35:28,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:35:28,033 INFO L93 Difference]: Finished difference Result 390 states and 510 transitions. [2023-11-19 07:35:28,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-19 07:35:28,034 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 12 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 07:35:28,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:35:28,036 INFO L225 Difference]: With dead ends: 390 [2023-11-19 07:35:28,037 INFO L226 Difference]: Without dead ends: 357 [2023-11-19 07:35:28,037 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=99, Invalid=321, Unknown=0, NotChecked=0, Total=420 [2023-11-19 07:35:28,038 INFO L413 NwaCegarLoop]: 233 mSDtfsCounter, 619 mSDsluCounter, 1162 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 619 SdHoareTripleChecker+Valid, 1395 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:35:28,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [619 Valid, 1395 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:35:28,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2023-11-19 07:35:28,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 209. [2023-11-19 07:35:28,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 207 states have (on average 1.2995169082125604) internal successors, (269), 208 states have internal predecessors, (269), 0 states have call successors, (0), 0 states 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 07:35:28,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 269 transitions. [2023-11-19 07:35:28,046 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 269 transitions. Word has length 67 [2023-11-19 07:35:28,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:35:28,047 INFO L495 AbstractCegarLoop]: Abstraction has 209 states and 269 transitions. [2023-11-19 07:35:28,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 12 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 07:35:28,047 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 269 transitions. [2023-11-19 07:35:28,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-19 07:35:28,048 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:35:28,048 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:35:28,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-19 07:35:28,048 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 07:35:28,049 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:28,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1308874992, now seen corresponding path program 1 times [2023-11-19 07:35:28,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:28,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915741840] [2023-11-19 07:35:28,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:28,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:28,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:28,684 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 07:35:28,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:35:28,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915741840] [2023-11-19 07:35:28,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915741840] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:35:28,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:35:28,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-11-19 07:35:28,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483260178] [2023-11-19 07:35:28,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:35:28,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-19 07:35:28,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:35:28,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-19 07:35:28,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-11-19 07:35:28,688 INFO L87 Difference]: Start difference. First operand 209 states and 269 transitions. Second operand has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 13 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:29,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:35:29,786 INFO L93 Difference]: Finished difference Result 1015 states and 1431 transitions. [2023-11-19 07:35:29,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-19 07:35:29,786 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 13 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2023-11-19 07:35:29,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:35:29,791 INFO L225 Difference]: With dead ends: 1015 [2023-11-19 07:35:29,792 INFO L226 Difference]: Without dead ends: 1009 [2023-11-19 07:35:29,793 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2023-11-19 07:35:29,793 INFO L413 NwaCegarLoop]: 348 mSDtfsCounter, 1317 mSDsluCounter, 1857 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1317 SdHoareTripleChecker+Valid, 2205 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-19 07:35:29,794 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1317 Valid, 2205 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-19 07:35:29,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1009 states. [2023-11-19 07:35:29,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1009 to 203. [2023-11-19 07:35:29,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 202 states have (on average 1.297029702970297) internal successors, (262), 202 states have internal predecessors, (262), 0 states have call successors, (0), 0 states 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 07:35:29,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 262 transitions. [2023-11-19 07:35:29,805 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 262 transitions. Word has length 69 [2023-11-19 07:35:29,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:35:29,805 INFO L495 AbstractCegarLoop]: Abstraction has 203 states and 262 transitions. [2023-11-19 07:35:29,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 13 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:29,806 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 262 transitions. [2023-11-19 07:35:29,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-19 07:35:29,807 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:35:29,807 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:35:29,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-11-19 07:35:29,808 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-19 07:35:29,808 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:29,808 INFO L85 PathProgramCache]: Analyzing trace with hash 1208516883, now seen corresponding path program 1 times [2023-11-19 07:35:29,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:29,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668938595] [2023-11-19 07:35:29,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:29,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:29,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:29,938 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 07:35:29,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:35:29,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668938595] [2023-11-19 07:35:29,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668938595] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:35:29,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:35:29,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 07:35:29,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241375681] [2023-11-19 07:35:29,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:35:29,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:35:29,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:35:29,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:35:29,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:35:29,943 INFO L87 Difference]: Start difference. First operand 203 states and 262 transitions. Second operand has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:30,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:35:30,047 INFO L93 Difference]: Finished difference Result 1035 states and 1494 transitions. [2023-11-19 07:35:30,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-19 07:35:30,048 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2023-11-19 07:35:30,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:35:30,052 INFO L225 Difference]: With dead ends: 1035 [2023-11-19 07:35:30,053 INFO L226 Difference]: Without dead ends: 931 [2023-11-19 07:35:30,053 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-11-19 07:35:30,054 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 881 mSDsluCounter, 796 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 881 SdHoareTripleChecker+Valid, 950 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:35:30,056 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [881 Valid, 950 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:35:30,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 931 states. [2023-11-19 07:35:30,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 931 to 305. [2023-11-19 07:35:30,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 304 states have (on average 1.3585526315789473) internal successors, (413), 304 states have internal predecessors, (413), 0 states have call successors, (0), 0 states 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 07:35:30,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 413 transitions. [2023-11-19 07:35:30,070 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 413 transitions. Word has length 92 [2023-11-19 07:35:30,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:35:30,070 INFO L495 AbstractCegarLoop]: Abstraction has 305 states and 413 transitions. [2023-11-19 07:35:30,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:30,075 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 413 transitions. [2023-11-19 07:35:30,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-19 07:35:30,077 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:35:30,077 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:35:30,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-11-19 07:35:30,077 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-19 07:35:30,078 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:30,078 INFO L85 PathProgramCache]: Analyzing trace with hash -1324206254, now seen corresponding path program 1 times [2023-11-19 07:35:30,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:30,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650979030] [2023-11-19 07:35:30,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:30,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:30,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:30,219 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 07:35:30,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:35:30,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650979030] [2023-11-19 07:35:30,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650979030] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:35:30,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:35:30,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 07:35:30,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142405253] [2023-11-19 07:35:30,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:35:30,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:35:30,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:35:30,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:35:30,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:35:30,223 INFO L87 Difference]: Start difference. First operand 305 states and 413 transitions. Second operand has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:30,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:35:30,295 INFO L93 Difference]: Finished difference Result 1233 states and 1785 transitions. [2023-11-19 07:35:30,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:35:30,296 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2023-11-19 07:35:30,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:35:30,303 INFO L225 Difference]: With dead ends: 1233 [2023-11-19 07:35:30,303 INFO L226 Difference]: Without dead ends: 1027 [2023-11-19 07:35:30,304 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:35:30,304 INFO L413 NwaCegarLoop]: 223 mSDtfsCounter, 633 mSDsluCounter, 439 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 633 SdHoareTripleChecker+Valid, 662 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:35:30,306 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [633 Valid, 662 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:35:30,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1027 states. [2023-11-19 07:35:30,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1027 to 407. [2023-11-19 07:35:30,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 406 states have (on average 1.3891625615763548) internal successors, (564), 406 states have internal predecessors, (564), 0 states have call successors, (0), 0 states 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 07:35:30,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 564 transitions. [2023-11-19 07:35:30,320 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 564 transitions. Word has length 94 [2023-11-19 07:35:30,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:35:30,320 INFO L495 AbstractCegarLoop]: Abstraction has 407 states and 564 transitions. [2023-11-19 07:35:30,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:30,321 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 564 transitions. [2023-11-19 07:35:30,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-19 07:35:30,322 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:35:30,322 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:35:30,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-11-19 07:35:30,323 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 07:35:30,323 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:30,323 INFO L85 PathProgramCache]: Analyzing trace with hash 1309824789, now seen corresponding path program 1 times [2023-11-19 07:35:30,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:30,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520464378] [2023-11-19 07:35:30,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:30,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:30,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:30,554 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 07:35:30,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:35:30,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520464378] [2023-11-19 07:35:30,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520464378] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:35:30,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:35:30,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 07:35:30,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428124795] [2023-11-19 07:35:30,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:35:30,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:35:30,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:35:30,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:35:30,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:35:30,557 INFO L87 Difference]: Start difference. First operand 407 states and 564 transitions. Second operand has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:30,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:35:30,641 INFO L93 Difference]: Finished difference Result 819 states and 1172 transitions. [2023-11-19 07:35:30,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:35:30,642 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2023-11-19 07:35:30,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:35:30,645 INFO L225 Difference]: With dead ends: 819 [2023-11-19 07:35:30,645 INFO L226 Difference]: Without dead ends: 511 [2023-11-19 07:35:30,645 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:35:30,646 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 136 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:35:30,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 379 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:35:30,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2023-11-19 07:35:30,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 509. [2023-11-19 07:35:30,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 508 states have (on average 1.3996062992125984) internal successors, (711), 508 states have internal predecessors, (711), 0 states have call successors, (0), 0 states 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 07:35:30,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 711 transitions. [2023-11-19 07:35:30,659 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 711 transitions. Word has length 94 [2023-11-19 07:35:30,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:35:30,660 INFO L495 AbstractCegarLoop]: Abstraction has 509 states and 711 transitions. [2023-11-19 07:35:30,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:30,660 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 711 transitions. [2023-11-19 07:35:30,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-19 07:35:30,662 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:35:30,662 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:35:30,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-11-19 07:35:30,662 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-19 07:35:30,663 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:30,663 INFO L85 PathProgramCache]: Analyzing trace with hash 570084468, now seen corresponding path program 1 times [2023-11-19 07:35:30,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:30,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832256089] [2023-11-19 07:35:30,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:30,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:30,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:30,728 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 07:35:30,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:35:30,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832256089] [2023-11-19 07:35:30,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832256089] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:35:30,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:35:30,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:35:30,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378723013] [2023-11-19 07:35:30,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:35:30,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:35:30,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:35:30,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:35:30,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:35:30,731 INFO L87 Difference]: Start difference. First operand 509 states and 711 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:30,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:35:30,757 INFO L93 Difference]: Finished difference Result 1219 states and 1752 transitions. [2023-11-19 07:35:30,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:35:30,758 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2023-11-19 07:35:30,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:35:30,762 INFO L225 Difference]: With dead ends: 1219 [2023-11-19 07:35:30,762 INFO L226 Difference]: Without dead ends: 809 [2023-11-19 07:35:30,763 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:35:30,764 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 90 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:35:30,764 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 248 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:35:30,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 809 states. [2023-11-19 07:35:30,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 809 to 801. [2023-11-19 07:35:30,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 801 states, 800 states have (on average 1.4075) internal successors, (1126), 800 states have internal predecessors, (1126), 0 states have call successors, (0), 0 states 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 07:35:30,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 801 states to 801 states and 1126 transitions. [2023-11-19 07:35:30,788 INFO L78 Accepts]: Start accepts. Automaton has 801 states and 1126 transitions. Word has length 94 [2023-11-19 07:35:30,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:35:30,788 INFO L495 AbstractCegarLoop]: Abstraction has 801 states and 1126 transitions. [2023-11-19 07:35:30,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:30,788 INFO L276 IsEmpty]: Start isEmpty. Operand 801 states and 1126 transitions. [2023-11-19 07:35:30,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-19 07:35:30,790 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:35:30,790 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:35:30,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-11-19 07:35:30,791 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-19 07:35:30,791 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:30,791 INFO L85 PathProgramCache]: Analyzing trace with hash -337360546, now seen corresponding path program 1 times [2023-11-19 07:35:30,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:30,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092651414] [2023-11-19 07:35:30,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:30,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:30,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:30,930 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 07:35:30,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:35:30,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092651414] [2023-11-19 07:35:30,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092651414] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:35:30,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:35:30,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 07:35:30,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046792926] [2023-11-19 07:35:30,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:35:30,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:35:30,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:35:30,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:35:30,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:35:30,934 INFO L87 Difference]: Start difference. First operand 801 states and 1126 transitions. Second operand has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:31,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:35:31,018 INFO L93 Difference]: Finished difference Result 2401 states and 3447 transitions. [2023-11-19 07:35:31,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:35:31,018 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2023-11-19 07:35:31,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:35:31,028 INFO L225 Difference]: With dead ends: 2401 [2023-11-19 07:35:31,029 INFO L226 Difference]: Without dead ends: 2039 [2023-11-19 07:35:31,031 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:35:31,032 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 601 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 601 SdHoareTripleChecker+Valid, 692 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:35:31,032 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [601 Valid, 692 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:35:31,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2039 states. [2023-11-19 07:35:31,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2039 to 1311. [2023-11-19 07:35:31,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1311 states, 1310 states have (on average 1.4221374045801527) internal successors, (1863), 1310 states have internal predecessors, (1863), 0 states have call successors, (0), 0 states 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 07:35:31,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1311 states to 1311 states and 1863 transitions. [2023-11-19 07:35:31,069 INFO L78 Accepts]: Start accepts. Automaton has 1311 states and 1863 transitions. Word has length 94 [2023-11-19 07:35:31,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:35:31,070 INFO L495 AbstractCegarLoop]: Abstraction has 1311 states and 1863 transitions. [2023-11-19 07:35:31,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:31,087 INFO L276 IsEmpty]: Start isEmpty. Operand 1311 states and 1863 transitions. [2023-11-19 07:35:31,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-19 07:35:31,089 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:35:31,089 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:35:31,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-11-19 07:35:31,090 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-19 07:35:31,090 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:31,090 INFO L85 PathProgramCache]: Analyzing trace with hash -1456780136, now seen corresponding path program 1 times [2023-11-19 07:35:31,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:31,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947204242] [2023-11-19 07:35:31,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:31,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:31,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:31,230 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 07:35:31,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:35:31,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947204242] [2023-11-19 07:35:31,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947204242] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:35:31,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:35:31,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 07:35:31,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142496333] [2023-11-19 07:35:31,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:35:31,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:35:31,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:35:31,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:35:31,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:35:31,233 INFO L87 Difference]: Start difference. First operand 1311 states and 1863 transitions. Second operand has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:31,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:35:31,348 INFO L93 Difference]: Finished difference Result 2741 states and 3939 transitions. [2023-11-19 07:35:31,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:35:31,349 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2023-11-19 07:35:31,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:35:31,361 INFO L225 Difference]: With dead ends: 2741 [2023-11-19 07:35:31,361 INFO L226 Difference]: Without dead ends: 2379 [2023-11-19 07:35:31,362 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:35:31,364 INFO L413 NwaCegarLoop]: 225 mSDtfsCounter, 568 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 568 SdHoareTripleChecker+Valid, 746 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:35:31,364 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [568 Valid, 746 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:35:31,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2379 states. [2023-11-19 07:35:31,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2379 to 1651. [2023-11-19 07:35:31,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1651 states, 1650 states have (on average 1.4272727272727272) internal successors, (2355), 1650 states have internal predecessors, (2355), 0 states have call successors, (0), 0 states 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 07:35:31,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1651 states to 1651 states and 2355 transitions. [2023-11-19 07:35:31,407 INFO L78 Accepts]: Start accepts. Automaton has 1651 states and 2355 transitions. Word has length 94 [2023-11-19 07:35:31,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:35:31,407 INFO L495 AbstractCegarLoop]: Abstraction has 1651 states and 2355 transitions. [2023-11-19 07:35:31,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:31,407 INFO L276 IsEmpty]: Start isEmpty. Operand 1651 states and 2355 transitions. [2023-11-19 07:35:31,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-11-19 07:35:31,409 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:35:31,410 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:35:31,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-11-19 07:35:31,410 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-19 07:35:31,411 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:31,411 INFO L85 PathProgramCache]: Analyzing trace with hash 1890695249, now seen corresponding path program 1 times [2023-11-19 07:35:31,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:31,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095925676] [2023-11-19 07:35:31,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:31,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:31,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:31,525 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 07:35:31,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:35:31,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095925676] [2023-11-19 07:35:31,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095925676] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:35:31,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:35:31,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:35:31,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776095662] [2023-11-19 07:35:31,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:35:31,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:35:31,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:35:31,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:35:31,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:35:31,528 INFO L87 Difference]: Start difference. First operand 1651 states and 2355 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:31,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:35:31,557 INFO L93 Difference]: Finished difference Result 4611 states and 6597 transitions. [2023-11-19 07:35:31,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:35:31,558 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2023-11-19 07:35:31,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:35:31,573 INFO L225 Difference]: With dead ends: 4611 [2023-11-19 07:35:31,574 INFO L226 Difference]: Without dead ends: 3059 [2023-11-19 07:35:31,576 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:35:31,577 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 70 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:35:31,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 326 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:35:31,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3059 states. [2023-11-19 07:35:31,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3059 to 2913. [2023-11-19 07:35:31,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2913 states, 2912 states have (on average 1.4192994505494505) internal successors, (4133), 2912 states have internal predecessors, (4133), 0 states have call successors, (0), 0 states 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 07:35:31,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2913 states to 2913 states and 4133 transitions. [2023-11-19 07:35:31,641 INFO L78 Accepts]: Start accepts. Automaton has 2913 states and 4133 transitions. Word has length 95 [2023-11-19 07:35:31,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:35:31,642 INFO L495 AbstractCegarLoop]: Abstraction has 2913 states and 4133 transitions. [2023-11-19 07:35:31,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:31,642 INFO L276 IsEmpty]: Start isEmpty. Operand 2913 states and 4133 transitions. [2023-11-19 07:35:31,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-19 07:35:31,643 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:35:31,644 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:35:31,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-11-19 07:35:31,644 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-19 07:35:31,645 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:31,645 INFO L85 PathProgramCache]: Analyzing trace with hash -1608306199, now seen corresponding path program 1 times [2023-11-19 07:35:31,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:31,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32030074] [2023-11-19 07:35:31,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:31,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:31,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:31,765 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 07:35:31,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:35:31,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32030074] [2023-11-19 07:35:31,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32030074] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:35:31,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:35:31,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:35:31,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108791597] [2023-11-19 07:35:31,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:35:31,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:35:31,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:35:31,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:35:31,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:35:31,768 INFO L87 Difference]: Start difference. First operand 2913 states and 4133 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:31,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:35:31,813 INFO L93 Difference]: Finished difference Result 8253 states and 11679 transitions. [2023-11-19 07:35:31,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:35:31,814 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2023-11-19 07:35:31,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:35:31,841 INFO L225 Difference]: With dead ends: 8253 [2023-11-19 07:35:31,848 INFO L226 Difference]: Without dead ends: 5439 [2023-11-19 07:35:31,853 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:35:31,854 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 63 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:35:31,854 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 326 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:35:31,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5439 states. [2023-11-19 07:35:31,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5439 to 5149. [2023-11-19 07:35:31,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5149 states, 5148 states have (on average 1.4026806526806528) internal successors, (7221), 5148 states have internal predecessors, (7221), 0 states have call successors, (0), 0 states 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 07:35:31,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5149 states to 5149 states and 7221 transitions. [2023-11-19 07:35:31,972 INFO L78 Accepts]: Start accepts. Automaton has 5149 states and 7221 transitions. Word has length 96 [2023-11-19 07:35:31,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:35:31,973 INFO L495 AbstractCegarLoop]: Abstraction has 5149 states and 7221 transitions. [2023-11-19 07:35:31,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:31,973 INFO L276 IsEmpty]: Start isEmpty. Operand 5149 states and 7221 transitions. [2023-11-19 07:35:31,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-19 07:35:31,975 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:35:31,975 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:35:31,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-11-19 07:35:31,975 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-19 07:35:31,976 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:31,976 INFO L85 PathProgramCache]: Analyzing trace with hash -916899152, now seen corresponding path program 1 times [2023-11-19 07:35:31,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:31,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567635283] [2023-11-19 07:35:31,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:31,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:32,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:32,150 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 07:35:32,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:35:32,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567635283] [2023-11-19 07:35:32,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567635283] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:35:32,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:35:32,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:35:32,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589529642] [2023-11-19 07:35:32,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:35:32,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:35:32,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:35:32,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:35:32,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:35:32,153 INFO L87 Difference]: Start difference. First operand 5149 states and 7221 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:32,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:35:32,226 INFO L93 Difference]: Finished difference Result 14673 states and 20439 transitions. [2023-11-19 07:35:32,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:35:32,227 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2023-11-19 07:35:32,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:35:32,246 INFO L225 Difference]: With dead ends: 14673 [2023-11-19 07:35:32,247 INFO L226 Difference]: Without dead ends: 9623 [2023-11-19 07:35:32,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:35:32,255 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 53 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:35:32,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 326 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:35:32,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9623 states. [2023-11-19 07:35:32,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9623 to 9045. [2023-11-19 07:35:32,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9045 states, 9044 states have (on average 1.3778195488721805) internal successors, (12461), 9044 states have internal predecessors, (12461), 0 states have call successors, (0), 0 states 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 07:35:32,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9045 states to 9045 states and 12461 transitions. [2023-11-19 07:35:32,435 INFO L78 Accepts]: Start accepts. Automaton has 9045 states and 12461 transitions. Word has length 97 [2023-11-19 07:35:32,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:35:32,436 INFO L495 AbstractCegarLoop]: Abstraction has 9045 states and 12461 transitions. [2023-11-19 07:35:32,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:35:32,436 INFO L276 IsEmpty]: Start isEmpty. Operand 9045 states and 12461 transitions. [2023-11-19 07:35:32,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-19 07:35:32,438 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:35:32,438 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:35:32,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-11-19 07:35:32,439 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-19 07:35:32,439 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:32,439 INFO L85 PathProgramCache]: Analyzing trace with hash 2063595932, now seen corresponding path program 1 times [2023-11-19 07:35:32,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:32,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848642730] [2023-11-19 07:35:32,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:32,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:32,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:32,666 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 07:35:32,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:35:32,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848642730] [2023-11-19 07:35:32,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848642730] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:35:32,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:35:32,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 07:35:32,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572064861] [2023-11-19 07:35:32,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:35:32,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:35:32,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:35:32,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:35:32,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:35:32,669 INFO L87 Difference]: Start difference. First operand 9045 states and 12461 transitions. Second operand has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states 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 07:35:32,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:35:32,761 INFO L93 Difference]: Finished difference Result 13611 states and 18599 transitions. [2023-11-19 07:35:32,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-19 07:35:32,762 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 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 98 [2023-11-19 07:35:32,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:35:32,786 INFO L225 Difference]: With dead ends: 13611 [2023-11-19 07:35:32,787 INFO L226 Difference]: Without dead ends: 13609 [2023-11-19 07:35:32,791 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:35:32,792 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 252 mSDsluCounter, 622 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 825 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:35:32,792 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 825 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:35:32,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13609 states. [2023-11-19 07:35:33,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13609 to 9237. [2023-11-19 07:35:33,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9237 states, 9236 states have (on average 1.3613035946297098) internal successors, (12573), 9236 states have internal predecessors, (12573), 0 states have call successors, (0), 0 states 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 07:35:33,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9237 states to 9237 states and 12573 transitions. [2023-11-19 07:35:33,034 INFO L78 Accepts]: Start accepts. Automaton has 9237 states and 12573 transitions. Word has length 98 [2023-11-19 07:35:33,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:35:33,035 INFO L495 AbstractCegarLoop]: Abstraction has 9237 states and 12573 transitions. [2023-11-19 07:35:33,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states 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 07:35:33,035 INFO L276 IsEmpty]: Start isEmpty. Operand 9237 states and 12573 transitions. [2023-11-19 07:35:33,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-19 07:35:33,037 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:35:33,037 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:35:33,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-11-19 07:35:33,037 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-19 07:35:33,038 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:33,038 INFO L85 PathProgramCache]: Analyzing trace with hash -777753176, now seen corresponding path program 1 times [2023-11-19 07:35:33,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:33,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676400803] [2023-11-19 07:35:33,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:33,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:33,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:33,178 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 07:35:33,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:35:33,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676400803] [2023-11-19 07:35:33,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676400803] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:35:33,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:35:33,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 07:35:33,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648844616] [2023-11-19 07:35:33,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:35:33,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:35:33,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:35:33,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:35:33,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:35:33,181 INFO L87 Difference]: Start difference. First operand 9237 states and 12573 transitions. Second operand has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states 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 07:35:33,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:35:33,299 INFO L93 Difference]: Finished difference Result 17725 states and 24281 transitions. [2023-11-19 07:35:33,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:35:33,300 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 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 98 [2023-11-19 07:35:33,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:35:33,329 INFO L225 Difference]: With dead ends: 17725 [2023-11-19 07:35:33,330 INFO L226 Difference]: Without dead ends: 15563 [2023-11-19 07:35:33,337 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:35:33,338 INFO L413 NwaCegarLoop]: 222 mSDtfsCounter, 624 mSDsluCounter, 513 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 624 SdHoareTripleChecker+Valid, 735 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:35:33,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [624 Valid, 735 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:35:33,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15563 states. [2023-11-19 07:35:33,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15563 to 11237. [2023-11-19 07:35:33,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11237 states, 11236 states have (on average 1.3610715557137771) internal successors, (15293), 11236 states have internal predecessors, (15293), 0 states have call successors, (0), 0 states 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 07:35:33,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11237 states to 11237 states and 15293 transitions. [2023-11-19 07:35:33,663 INFO L78 Accepts]: Start accepts. Automaton has 11237 states and 15293 transitions. Word has length 98 [2023-11-19 07:35:33,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:35:33,663 INFO L495 AbstractCegarLoop]: Abstraction has 11237 states and 15293 transitions. [2023-11-19 07:35:33,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states 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 07:35:33,664 INFO L276 IsEmpty]: Start isEmpty. Operand 11237 states and 15293 transitions. [2023-11-19 07:35:33,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-19 07:35:33,665 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:35:33,665 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:35:33,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-11-19 07:35:33,667 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-19 07:35:33,667 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:33,668 INFO L85 PathProgramCache]: Analyzing trace with hash -530222486, now seen corresponding path program 1 times [2023-11-19 07:35:33,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:33,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853174175] [2023-11-19 07:35:33,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:33,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:33,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:33,811 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 07:35:33,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:35:33,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853174175] [2023-11-19 07:35:33,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853174175] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:35:33,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:35:33,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 07:35:33,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574448519] [2023-11-19 07:35:33,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:35:33,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:35:33,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:35:33,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:35:33,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:35:33,815 INFO L87 Difference]: Start difference. First operand 11237 states and 15293 transitions. Second operand has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 6 states have internal predecessors, (100), 0 states have call successors, (0), 0 states 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 07:35:34,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:35:34,171 INFO L93 Difference]: Finished difference Result 27101 states and 36617 transitions. [2023-11-19 07:35:34,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-19 07:35:34,172 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 6 states have internal predecessors, (100), 0 states have call successors, (0), 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 100 [2023-11-19 07:35:34,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:35:34,203 INFO L225 Difference]: With dead ends: 27101 [2023-11-19 07:35:34,203 INFO L226 Difference]: Without dead ends: 15963 [2023-11-19 07:35:34,215 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2023-11-19 07:35:34,215 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 1008 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1008 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:35:34,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1008 Valid, 284 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:35:34,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15963 states. [2023-11-19 07:35:34,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15963 to 11149. [2023-11-19 07:35:34,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11149 states, 11148 states have (on average 1.3481341944743452) internal successors, (15029), 11148 states have internal predecessors, (15029), 0 states have call successors, (0), 0 states 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 07:35:34,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11149 states to 11149 states and 15029 transitions. [2023-11-19 07:35:34,415 INFO L78 Accepts]: Start accepts. Automaton has 11149 states and 15029 transitions. Word has length 100 [2023-11-19 07:35:34,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:35:34,416 INFO L495 AbstractCegarLoop]: Abstraction has 11149 states and 15029 transitions. [2023-11-19 07:35:34,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 6 states have internal predecessors, (100), 0 states have call successors, (0), 0 states 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 07:35:34,416 INFO L276 IsEmpty]: Start isEmpty. Operand 11149 states and 15029 transitions. [2023-11-19 07:35:34,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-11-19 07:35:34,421 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:35:34,422 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:35:34,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-11-19 07:35:34,422 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-19 07:35:34,423 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:34,423 INFO L85 PathProgramCache]: Analyzing trace with hash -1824588018, now seen corresponding path program 1 times [2023-11-19 07:35:34,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:34,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831810494] [2023-11-19 07:35:34,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:34,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms