./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_806d7032-a7ed-477c-b361-4c30002ba13f/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_806d7032-a7ed-477c-b361-4c30002ba13f/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_806d7032-a7ed-477c-b361-4c30002ba13f/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_806d7032-a7ed-477c-b361-4c30002ba13f/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_806d7032-a7ed-477c-b361-4c30002ba13f/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_806d7032-a7ed-477c-b361-4c30002ba13f/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 820426658db97058309ccbf6c9080e1e23ba9878004c38e814dfcfedaf40875a --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 14:31:19,008 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 14:31:19,009 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 14:31:19,028 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 14:31:19,029 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 14:31:19,030 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 14:31:19,031 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 14:31:19,032 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 14:31:19,034 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 14:31:19,034 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 14:31:19,035 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 14:31:19,036 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 14:31:19,037 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 14:31:19,038 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 14:31:19,039 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 14:31:19,040 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 14:31:19,040 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 14:31:19,041 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 14:31:19,043 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 14:31:19,044 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 14:31:19,046 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 14:31:19,047 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 14:31:19,048 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 14:31:19,049 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 14:31:19,052 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 14:31:19,052 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 14:31:19,052 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 14:31:19,053 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 14:31:19,054 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 14:31:19,054 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 14:31:19,055 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 14:31:19,055 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 14:31:19,056 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 14:31:19,057 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 14:31:19,057 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 14:31:19,058 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 14:31:19,058 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 14:31:19,058 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 14:31:19,059 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 14:31:19,059 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 14:31:19,060 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 14:31:19,061 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_806d7032-a7ed-477c-b361-4c30002ba13f/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 14:31:19,081 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 14:31:19,081 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 14:31:19,082 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 14:31:19,082 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 14:31:19,082 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 14:31:19,083 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 14:31:19,083 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 14:31:19,083 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 14:31:19,084 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 14:31:19,084 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 14:31:19,084 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 14:31:19,084 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 14:31:19,084 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 14:31:19,085 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 14:31:19,085 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 14:31:19,085 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 14:31:19,085 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 14:31:19,085 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 14:31:19,085 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 14:31:19,086 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 14:31:19,086 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 14:31:19,086 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 14:31:19,086 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 14:31:19,086 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 14:31:19,087 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 14:31:19,087 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 14:31:19,087 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 14:31:19,087 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 14:31:19,087 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 14:31:19,088 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 14:31:19,088 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 14:31:19,088 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 14:31:19,088 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 14:31:19,088 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 14:31:19,088 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 14:31:19,089 INFO L138 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_806d7032-a7ed-477c-b361-4c30002ba13f/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_806d7032-a7ed-477c-b361-4c30002ba13f/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 820426658db97058309ccbf6c9080e1e23ba9878004c38e814dfcfedaf40875a [2022-12-13 14:31:19,271 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 14:31:19,291 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 14:31:19,294 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 14:31:19,295 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 14:31:19,295 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 14:31:19,296 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_806d7032-a7ed-477c-b361-4c30002ba13f/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-12-13 14:31:21,934 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 14:31:22,202 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 14:31:22,202 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_806d7032-a7ed-477c-b361-4c30002ba13f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-12-13 14:31:22,216 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_806d7032-a7ed-477c-b361-4c30002ba13f/bin/uautomizer-uyxdKDjOR8/data/567a68ce7/204c5e49e2c348a4be1ac413bd831be2/FLAG40302f345 [2022-12-13 14:31:22,227 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_806d7032-a7ed-477c-b361-4c30002ba13f/bin/uautomizer-uyxdKDjOR8/data/567a68ce7/204c5e49e2c348a4be1ac413bd831be2 [2022-12-13 14:31:22,228 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 14:31:22,229 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 14:31:22,230 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 14:31:22,230 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 14:31:22,233 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 14:31:22,234 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:31:22" (1/1) ... [2022-12-13 14:31:22,235 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@196542a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:31:22, skipping insertion in model container [2022-12-13 14:31:22,235 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:31:22" (1/1) ... [2022-12-13 14:31:22,241 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 14:31:22,348 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 14:31:22,639 WARN L237 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_806d7032-a7ed-477c-b361-4c30002ba13f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[11898,11911] [2022-12-13 14:31:22,677 WARN L237 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_806d7032-a7ed-477c-b361-4c30002ba13f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[18616,18629] [2022-12-13 14:31:22,691 WARN L237 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_806d7032-a7ed-477c-b361-4c30002ba13f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[20814,20827] [2022-12-13 14:31:22,697 WARN L237 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_806d7032-a7ed-477c-b361-4c30002ba13f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[21891,21904] [2022-12-13 14:31:22,710 WARN L237 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_806d7032-a7ed-477c-b361-4c30002ba13f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[25244,25257] [2022-12-13 14:31:22,715 WARN L237 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_806d7032-a7ed-477c-b361-4c30002ba13f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[26324,26337] [2022-12-13 14:31:22,725 WARN L237 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_806d7032-a7ed-477c-b361-4c30002ba13f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[28553,28566] [2022-12-13 14:31:23,038 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:31:23,053 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 14:31:23,100 WARN L237 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_806d7032-a7ed-477c-b361-4c30002ba13f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[11898,11911] [2022-12-13 14:31:23,114 WARN L237 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_806d7032-a7ed-477c-b361-4c30002ba13f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[18616,18629] [2022-12-13 14:31:23,120 WARN L237 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_806d7032-a7ed-477c-b361-4c30002ba13f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[20814,20827] [2022-12-13 14:31:23,124 WARN L237 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_806d7032-a7ed-477c-b361-4c30002ba13f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[21891,21904] [2022-12-13 14:31:23,132 WARN L237 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_806d7032-a7ed-477c-b361-4c30002ba13f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[25244,25257] [2022-12-13 14:31:23,136 WARN L237 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_806d7032-a7ed-477c-b361-4c30002ba13f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[26324,26337] [2022-12-13 14:31:23,141 WARN L237 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_806d7032-a7ed-477c-b361-4c30002ba13f/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[28553,28566] [2022-12-13 14:31:23,337 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:31:23,356 INFO L208 MainTranslator]: Completed translation [2022-12-13 14:31:23,356 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:31:23 WrapperNode [2022-12-13 14:31:23,357 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 14:31:23,357 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 14:31:23,357 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 14:31:23,358 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 14:31:23,363 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:31:23" (1/1) ... [2022-12-13 14:31:23,400 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:31:23" (1/1) ... [2022-12-13 14:31:23,483 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 6525 [2022-12-13 14:31:23,483 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 14:31:23,484 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 14:31:23,484 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 14:31:23,484 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 14:31:23,491 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:31:23" (1/1) ... [2022-12-13 14:31:23,491 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:31:23" (1/1) ... [2022-12-13 14:31:23,511 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:31:23" (1/1) ... [2022-12-13 14:31:23,511 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:31:23" (1/1) ... [2022-12-13 14:31:23,538 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:31:23" (1/1) ... [2022-12-13 14:31:23,561 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:31:23" (1/1) ... [2022-12-13 14:31:23,571 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:31:23" (1/1) ... [2022-12-13 14:31:23,583 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:31:23" (1/1) ... [2022-12-13 14:31:23,599 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 14:31:23,600 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 14:31:23,600 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 14:31:23,600 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 14:31:23,600 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:31:23" (1/1) ... [2022-12-13 14:31:23,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 14:31:23,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_806d7032-a7ed-477c-b361-4c30002ba13f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:31:23,624 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_806d7032-a7ed-477c-b361-4c30002ba13f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 14:31:23,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_806d7032-a7ed-477c-b361-4c30002ba13f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 14:31:23,657 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 14:31:23,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 14:31:23,657 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 14:31:23,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 14:31:23,896 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 14:31:23,898 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 14:31:25,930 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 14:31:25,941 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 14:31:25,941 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 14:31:25,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:31:25 BoogieIcfgContainer [2022-12-13 14:31:25,944 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 14:31:25,946 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 14:31:25,946 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 14:31:25,948 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 14:31:25,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 02:31:22" (1/3) ... [2022-12-13 14:31:25,949 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cb25114 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 02:31:25, skipping insertion in model container [2022-12-13 14:31:25,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:31:23" (2/3) ... [2022-12-13 14:31:25,949 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cb25114 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 02:31:25, skipping insertion in model container [2022-12-13 14:31:25,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:31:25" (3/3) ... [2022-12-13 14:31:25,950 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-12-13 14:31:25,964 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 14:31:25,964 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2022-12-13 14:31:26,015 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 14:31:26,020 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1e5fe1fd, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 14:31:26,020 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-12-13 14:31:26,028 INFO L276 IsEmpty]: Start isEmpty. Operand has 1102 states, 1094 states have (on average 1.8875685557586837) internal successors, (2065), 1101 states have internal predecessors, (2065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:31:26,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-12-13 14:31:26,046 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:31:26,047 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] [2022-12-13 14:31:26,048 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 14:31:26,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:31:26,053 INFO L85 PathProgramCache]: Analyzing trace with hash -1027637325, now seen corresponding path program 1 times [2022-12-13 14:31:26,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:31:26,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656097521] [2022-12-13 14:31:26,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:31:26,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:31:26,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:31:26,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:31:26,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:31:26,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656097521] [2022-12-13 14:31:26,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656097521] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:31:26,496 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:31:26,496 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 14:31:26,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587756472] [2022-12-13 14:31:26,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:31:26,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 14:31:26,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:31:26,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 14:31:26,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 14:31:26,529 INFO L87 Difference]: Start difference. First operand has 1102 states, 1094 states have (on average 1.8875685557586837) internal successors, (2065), 1101 states have internal predecessors, (2065), 0 states have call successors, (0), 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 12.6) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:31:27,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:31:27,253 INFO L93 Difference]: Finished difference Result 1790 states and 3275 transitions. [2022-12-13 14:31:27,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 14:31:27,255 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2022-12-13 14:31:27,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:31:27,271 INFO L225 Difference]: With dead ends: 1790 [2022-12-13 14:31:27,271 INFO L226 Difference]: Without dead ends: 987 [2022-12-13 14:31:27,276 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 [2022-12-13 14:31:27,279 INFO L413 NwaCegarLoop]: 1062 mSDtfsCounter, 5044 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 566 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5044 SdHoareTripleChecker+Valid, 1250 SdHoareTripleChecker+Invalid, 575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-13 14:31:27,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5044 Valid, 1250 Invalid, 575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 566 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-13 14:31:27,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 987 states. [2022-12-13 14:31:27,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 987 to 979. [2022-12-13 14:31:27,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 979 states, 972 states have (on average 1.3477366255144032) internal successors, (1310), 978 states have internal predecessors, (1310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:31:27,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 979 states to 979 states and 1310 transitions. [2022-12-13 14:31:27,368 INFO L78 Accepts]: Start accepts. Automaton has 979 states and 1310 transitions. Word has length 63 [2022-12-13 14:31:27,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:31:27,368 INFO L495 AbstractCegarLoop]: Abstraction has 979 states and 1310 transitions. [2022-12-13 14:31:27,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:31:27,369 INFO L276 IsEmpty]: Start isEmpty. Operand 979 states and 1310 transitions. [2022-12-13 14:31:27,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-12-13 14:31:27,371 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:31:27,372 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] [2022-12-13 14:31:27,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 14:31:27,372 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 14:31:27,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:31:27,373 INFO L85 PathProgramCache]: Analyzing trace with hash 517550277, now seen corresponding path program 1 times [2022-12-13 14:31:27,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:31:27,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933897936] [2022-12-13 14:31:27,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:31:27,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:31:27,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:31:27,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:31:27,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:31:27,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933897936] [2022-12-13 14:31:27,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933897936] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:31:27,470 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:31:27,470 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 14:31:27,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125064081] [2022-12-13 14:31:27,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:31:27,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:31:27,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:31:27,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:31:27,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:31:27,473 INFO L87 Difference]: Start difference. First operand 979 states and 1310 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 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) [2022-12-13 14:31:27,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:31:27,539 INFO L93 Difference]: Finished difference Result 1722 states and 2352 transitions. [2022-12-13 14:31:27,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:31:27,539 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 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 [2022-12-13 14:31:27,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:31:27,545 INFO L225 Difference]: With dead ends: 1722 [2022-12-13 14:31:27,545 INFO L226 Difference]: Without dead ends: 1402 [2022-12-13 14:31:27,546 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 [2022-12-13 14:31:27,547 INFO L413 NwaCegarLoop]: 1422 mSDtfsCounter, 896 mSDsluCounter, 714 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 896 SdHoareTripleChecker+Valid, 2136 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 14:31:27,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [896 Valid, 2136 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 14:31:27,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1402 states. [2022-12-13 14:31:27,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1402 to 1393. [2022-12-13 14:31:27,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1393 states, 1386 states have (on average 1.3398268398268398) internal successors, (1857), 1392 states have internal predecessors, (1857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:31:27,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1393 states to 1393 states and 1857 transitions. [2022-12-13 14:31:27,608 INFO L78 Accepts]: Start accepts. Automaton has 1393 states and 1857 transitions. Word has length 64 [2022-12-13 14:31:27,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:31:27,608 INFO L495 AbstractCegarLoop]: Abstraction has 1393 states and 1857 transitions. [2022-12-13 14:31:27,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 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) [2022-12-13 14:31:27,609 INFO L276 IsEmpty]: Start isEmpty. Operand 1393 states and 1857 transitions. [2022-12-13 14:31:27,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-12-13 14:31:27,613 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:31:27,613 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] [2022-12-13 14:31:27,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 14:31:27,614 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 14:31:27,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:31:27,614 INFO L85 PathProgramCache]: Analyzing trace with hash 1546123801, now seen corresponding path program 1 times [2022-12-13 14:31:27,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:31:27,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933371810] [2022-12-13 14:31:27,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:31:27,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:31:27,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:31:27,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:31:27,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:31:27,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933371810] [2022-12-13 14:31:27,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933371810] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:31:27,691 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:31:27,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 14:31:27,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886657104] [2022-12-13 14:31:27,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:31:27,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:31:27,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:31:27,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:31:27,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:31:27,693 INFO L87 Difference]: Start difference. First operand 1393 states and 1857 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 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) [2022-12-13 14:31:27,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:31:27,869 INFO L93 Difference]: Finished difference Result 2185 states and 3029 transitions. [2022-12-13 14:31:27,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:31:27,870 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 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 [2022-12-13 14:31:27,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:31:27,877 INFO L225 Difference]: With dead ends: 2185 [2022-12-13 14:31:27,878 INFO L226 Difference]: Without dead ends: 1800 [2022-12-13 14:31:27,879 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 [2022-12-13 14:31:27,879 INFO L413 NwaCegarLoop]: 1156 mSDtfsCounter, 532 mSDsluCounter, 708 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 532 SdHoareTripleChecker+Valid, 1864 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 14:31:27,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [532 Valid, 1864 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 14:31:27,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1800 states. [2022-12-13 14:31:27,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1800 to 1792. [2022-12-13 14:31:27,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1792 states, 1785 states have (on average 1.3647058823529412) internal successors, (2436), 1791 states have internal predecessors, (2436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:31:27,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1792 states to 1792 states and 2436 transitions. [2022-12-13 14:31:27,964 INFO L78 Accepts]: Start accepts. Automaton has 1792 states and 2436 transitions. Word has length 64 [2022-12-13 14:31:27,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:31:27,964 INFO L495 AbstractCegarLoop]: Abstraction has 1792 states and 2436 transitions. [2022-12-13 14:31:27,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 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) [2022-12-13 14:31:27,965 INFO L276 IsEmpty]: Start isEmpty. Operand 1792 states and 2436 transitions. [2022-12-13 14:31:27,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-12-13 14:31:27,968 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:31:27,968 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] [2022-12-13 14:31:27,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 14:31:27,969 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 14:31:27,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:31:27,969 INFO L85 PathProgramCache]: Analyzing trace with hash -1930220714, now seen corresponding path program 1 times [2022-12-13 14:31:27,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:31:27,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261090429] [2022-12-13 14:31:27,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:31:27,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:31:27,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:31:28,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:31:28,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:31:28,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261090429] [2022-12-13 14:31:28,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261090429] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:31:28,035 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:31:28,035 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 14:31:28,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125842190] [2022-12-13 14:31:28,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:31:28,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:31:28,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:31:28,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:31:28,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:31:28,036 INFO L87 Difference]: Start difference. First operand 1792 states and 2436 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 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) [2022-12-13 14:31:28,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:31:28,165 INFO L93 Difference]: Finished difference Result 3258 states and 4588 transitions. [2022-12-13 14:31:28,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:31:28,166 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 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 [2022-12-13 14:31:28,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:31:28,171 INFO L225 Difference]: With dead ends: 3258 [2022-12-13 14:31:28,171 INFO L226 Difference]: Without dead ends: 2458 [2022-12-13 14:31:28,172 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 [2022-12-13 14:31:28,172 INFO L413 NwaCegarLoop]: 1081 mSDtfsCounter, 553 mSDsluCounter, 716 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 553 SdHoareTripleChecker+Valid, 1797 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 14:31:28,173 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [553 Valid, 1797 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 14:31:28,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2458 states. [2022-12-13 14:31:28,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2458 to 2450. [2022-12-13 14:31:28,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2450 states, 2443 states have (on average 1.3835448219402373) internal successors, (3380), 2449 states have internal predecessors, (3380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:31:28,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2450 states to 2450 states and 3380 transitions. [2022-12-13 14:31:28,254 INFO L78 Accepts]: Start accepts. Automaton has 2450 states and 3380 transitions. Word has length 64 [2022-12-13 14:31:28,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:31:28,254 INFO L495 AbstractCegarLoop]: Abstraction has 2450 states and 3380 transitions. [2022-12-13 14:31:28,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 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) [2022-12-13 14:31:28,254 INFO L276 IsEmpty]: Start isEmpty. Operand 2450 states and 3380 transitions. [2022-12-13 14:31:28,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-12-13 14:31:28,257 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:31:28,257 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] [2022-12-13 14:31:28,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 14:31:28,257 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 14:31:28,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:31:28,258 INFO L85 PathProgramCache]: Analyzing trace with hash -1847708861, now seen corresponding path program 1 times [2022-12-13 14:31:28,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:31:28,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938228021] [2022-12-13 14:31:28,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:31:28,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:31:28,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:31:28,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:31:28,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:31:28,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938228021] [2022-12-13 14:31:28,368 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938228021] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:31:28,368 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:31:28,369 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 14:31:28,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106047091] [2022-12-13 14:31:28,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:31:28,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 14:31:28,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:31:28,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 14:31:28,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 14:31:28,370 INFO L87 Difference]: Start difference. First operand 2450 states and 3380 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 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) [2022-12-13 14:31:28,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:31:28,994 INFO L93 Difference]: Finished difference Result 4663 states and 6528 transitions. [2022-12-13 14:31:28,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 14:31:28,994 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 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 [2022-12-13 14:31:28,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:31:29,000 INFO L225 Difference]: With dead ends: 4663 [2022-12-13 14:31:29,000 INFO L226 Difference]: Without dead ends: 2817 [2022-12-13 14:31:29,003 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 [2022-12-13 14:31:29,003 INFO L413 NwaCegarLoop]: 567 mSDtfsCounter, 3048 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3048 SdHoareTripleChecker+Valid, 692 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-13 14:31:29,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3048 Valid, 692 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-13 14:31:29,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2817 states. [2022-12-13 14:31:29,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2817 to 2803. [2022-12-13 14:31:29,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2803 states, 2796 states have (on average 1.3776824034334765) internal successors, (3852), 2802 states have internal predecessors, (3852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:31:29,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2803 states to 2803 states and 3852 transitions. [2022-12-13 14:31:29,115 INFO L78 Accepts]: Start accepts. Automaton has 2803 states and 3852 transitions. Word has length 64 [2022-12-13 14:31:29,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:31:29,116 INFO L495 AbstractCegarLoop]: Abstraction has 2803 states and 3852 transitions. [2022-12-13 14:31:29,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 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) [2022-12-13 14:31:29,116 INFO L276 IsEmpty]: Start isEmpty. Operand 2803 states and 3852 transitions. [2022-12-13 14:31:29,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-12-13 14:31:29,118 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:31:29,118 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] [2022-12-13 14:31:29,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 14:31:29,118 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 14:31:29,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:31:29,119 INFO L85 PathProgramCache]: Analyzing trace with hash 1685345629, now seen corresponding path program 1 times [2022-12-13 14:31:29,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:31:29,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049173322] [2022-12-13 14:31:29,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:31:29,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:31:29,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:31:29,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:31:29,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:31:29,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049173322] [2022-12-13 14:31:29,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049173322] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:31:29,203 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:31:29,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 14:31:29,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966442033] [2022-12-13 14:31:29,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:31:29,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 14:31:29,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:31:29,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 14:31:29,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 14:31:29,205 INFO L87 Difference]: Start difference. First operand 2803 states and 3852 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 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) [2022-12-13 14:31:29,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:31:29,877 INFO L93 Difference]: Finished difference Result 6625 states and 9341 transitions. [2022-12-13 14:31:29,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 14:31:29,878 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 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 [2022-12-13 14:31:29,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:31:29,885 INFO L225 Difference]: With dead ends: 6625 [2022-12-13 14:31:29,886 INFO L226 Difference]: Without dead ends: 4111 [2022-12-13 14:31:29,888 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 [2022-12-13 14:31:29,888 INFO L413 NwaCegarLoop]: 488 mSDtfsCounter, 2711 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2711 SdHoareTripleChecker+Valid, 644 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 14:31:29,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2711 Valid, 644 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 14:31:29,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4111 states. [2022-12-13 14:31:30,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4111 to 4103. [2022-12-13 14:31:30,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4103 states, 4096 states have (on average 1.41162109375) internal successors, (5782), 4102 states have internal predecessors, (5782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:31:30,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4103 states to 4103 states and 5782 transitions. [2022-12-13 14:31:30,066 INFO L78 Accepts]: Start accepts. Automaton has 4103 states and 5782 transitions. Word has length 64 [2022-12-13 14:31:30,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:31:30,067 INFO L495 AbstractCegarLoop]: Abstraction has 4103 states and 5782 transitions. [2022-12-13 14:31:30,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 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) [2022-12-13 14:31:30,067 INFO L276 IsEmpty]: Start isEmpty. Operand 4103 states and 5782 transitions. [2022-12-13 14:31:30,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-12-13 14:31:30,069 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:31:30,069 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] [2022-12-13 14:31:30,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 14:31:30,069 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 14:31:30,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:31:30,070 INFO L85 PathProgramCache]: Analyzing trace with hash -1051430303, now seen corresponding path program 1 times [2022-12-13 14:31:30,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:31:30,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992059372] [2022-12-13 14:31:30,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:31:30,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:31:30,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:31:30,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:31:30,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:31:30,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992059372] [2022-12-13 14:31:30,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992059372] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:31:30,122 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:31:30,122 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 14:31:30,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255775507] [2022-12-13 14:31:30,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:31:30,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:31:30,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:31:30,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:31:30,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:31:30,123 INFO L87 Difference]: Start difference. First operand 4103 states and 5782 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:31:30,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:31:30,418 INFO L93 Difference]: Finished difference Result 8762 states and 12471 transitions. [2022-12-13 14:31:30,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:31:30,419 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2022-12-13 14:31:30,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:31:30,429 INFO L225 Difference]: With dead ends: 8762 [2022-12-13 14:31:30,430 INFO L226 Difference]: Without dead ends: 5676 [2022-12-13 14:31:30,433 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 [2022-12-13 14:31:30,433 INFO L413 NwaCegarLoop]: 959 mSDtfsCounter, 583 mSDsluCounter, 564 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 583 SdHoareTripleChecker+Valid, 1523 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 14:31:30,434 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [583 Valid, 1523 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 14:31:30,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5676 states. [2022-12-13 14:31:30,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5676 to 5650. [2022-12-13 14:31:30,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5650 states, 5643 states have (on average 1.3891547049441786) internal successors, (7839), 5649 states have internal predecessors, (7839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:31:30,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5650 states to 5650 states and 7839 transitions. [2022-12-13 14:31:30,931 INFO L78 Accepts]: Start accepts. Automaton has 5650 states and 7839 transitions. Word has length 65 [2022-12-13 14:31:30,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:31:30,931 INFO L495 AbstractCegarLoop]: Abstraction has 5650 states and 7839 transitions. [2022-12-13 14:31:30,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:31:30,931 INFO L276 IsEmpty]: Start isEmpty. Operand 5650 states and 7839 transitions. [2022-12-13 14:31:30,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-12-13 14:31:30,938 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:31:30,938 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] [2022-12-13 14:31:30,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 14:31:30,938 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 14:31:30,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:31:30,939 INFO L85 PathProgramCache]: Analyzing trace with hash 1899148000, now seen corresponding path program 1 times [2022-12-13 14:31:30,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:31:30,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470380539] [2022-12-13 14:31:30,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:31:30,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:31:30,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:31:31,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:31:31,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:31:31,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470380539] [2022-12-13 14:31:31,045 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470380539] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:31:31,045 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:31:31,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 14:31:31,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934094124] [2022-12-13 14:31:31,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:31:31,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 14:31:31,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:31:31,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 14:31:31,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 14:31:31,047 INFO L87 Difference]: Start difference. First operand 5650 states and 7839 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 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) [2022-12-13 14:31:31,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:31:31,885 INFO L93 Difference]: Finished difference Result 12666 states and 17736 transitions. [2022-12-13 14:31:31,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 14:31:31,885 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 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 [2022-12-13 14:31:31,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:31:31,901 INFO L225 Difference]: With dead ends: 12666 [2022-12-13 14:31:31,901 INFO L226 Difference]: Without dead ends: 7452 [2022-12-13 14:31:31,906 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 [2022-12-13 14:31:31,906 INFO L413 NwaCegarLoop]: 429 mSDtfsCounter, 2375 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2375 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 14:31:31,906 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2375 Valid, 577 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 14:31:31,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7452 states. [2022-12-13 14:31:32,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7452 to 7417. [2022-12-13 14:31:32,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7417 states, 7410 states have (on average 1.3913630229419702) internal successors, (10310), 7416 states have internal predecessors, (10310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:31:32,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7417 states to 7417 states and 10310 transitions. [2022-12-13 14:31:32,326 INFO L78 Accepts]: Start accepts. Automaton has 7417 states and 10310 transitions. Word has length 66 [2022-12-13 14:31:32,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:31:32,327 INFO L495 AbstractCegarLoop]: Abstraction has 7417 states and 10310 transitions. [2022-12-13 14:31:32,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 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) [2022-12-13 14:31:32,327 INFO L276 IsEmpty]: Start isEmpty. Operand 7417 states and 10310 transitions. [2022-12-13 14:31:32,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-12-13 14:31:32,332 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:31:32,332 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] [2022-12-13 14:31:32,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 14:31:32,332 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 14:31:32,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:31:32,333 INFO L85 PathProgramCache]: Analyzing trace with hash -1449474395, now seen corresponding path program 1 times [2022-12-13 14:31:32,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:31:32,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160447571] [2022-12-13 14:31:32,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:31:32,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:31:32,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:31:32,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:31:32,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:31:32,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160447571] [2022-12-13 14:31:32,458 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160447571] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:31:32,458 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:31:32,458 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 14:31:32,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710464585] [2022-12-13 14:31:32,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:31:32,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 14:31:32,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:31:32,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 14:31:32,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 14:31:32,459 INFO L87 Difference]: Start difference. First operand 7417 states and 10310 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 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) [2022-12-13 14:31:34,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:31:34,625 INFO L93 Difference]: Finished difference Result 25547 states and 36211 transitions. [2022-12-13 14:31:34,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 14:31:34,625 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 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 [2022-12-13 14:31:34,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:31:34,654 INFO L225 Difference]: With dead ends: 25547 [2022-12-13 14:31:34,655 INFO L226 Difference]: Without dead ends: 22002 [2022-12-13 14:31:34,660 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 [2022-12-13 14:31:34,661 INFO L413 NwaCegarLoop]: 447 mSDtfsCounter, 4463 mSDsluCounter, 617 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4463 SdHoareTripleChecker+Valid, 1064 SdHoareTripleChecker+Invalid, 710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-13 14:31:34,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4463 Valid, 1064 Invalid, 710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 595 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-13 14:31:34,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22002 states. [2022-12-13 14:31:35,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22002 to 7445. [2022-12-13 14:31:35,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7445 states, 7438 states have (on average 1.3909653132562516) internal successors, (10346), 7444 states have internal predecessors, (10346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:31:35,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7445 states to 7445 states and 10346 transitions. [2022-12-13 14:31:35,425 INFO L78 Accepts]: Start accepts. Automaton has 7445 states and 10346 transitions. Word has length 67 [2022-12-13 14:31:35,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:31:35,425 INFO L495 AbstractCegarLoop]: Abstraction has 7445 states and 10346 transitions. [2022-12-13 14:31:35,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 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) [2022-12-13 14:31:35,425 INFO L276 IsEmpty]: Start isEmpty. Operand 7445 states and 10346 transitions. [2022-12-13 14:31:35,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-12-13 14:31:35,429 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:31:35,429 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] [2022-12-13 14:31:35,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 14:31:35,429 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 14:31:35,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:31:35,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1861181409, now seen corresponding path program 1 times [2022-12-13 14:31:35,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:31:35,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612716634] [2022-12-13 14:31:35,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:31:35,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:31:35,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:31:35,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:31:35,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:31:35,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612716634] [2022-12-13 14:31:35,536 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612716634] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:31:35,536 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:31:35,536 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 14:31:35,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348440545] [2022-12-13 14:31:35,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:31:35,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 14:31:35,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:31:35,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 14:31:35,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 14:31:35,537 INFO L87 Difference]: Start difference. First operand 7445 states and 10346 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 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) [2022-12-13 14:31:39,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:31:39,001 INFO L93 Difference]: Finished difference Result 28139 states and 40023 transitions. [2022-12-13 14:31:39,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 14:31:39,002 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 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 [2022-12-13 14:31:39,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:31:39,031 INFO L225 Difference]: With dead ends: 28139 [2022-12-13 14:31:39,031 INFO L226 Difference]: Without dead ends: 25042 [2022-12-13 14:31:39,037 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-12-13 14:31:39,037 INFO L413 NwaCegarLoop]: 478 mSDtfsCounter, 3354 mSDsluCounter, 758 mSDsCounter, 0 mSdLazyCounter, 867 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3354 SdHoareTripleChecker+Valid, 1236 SdHoareTripleChecker+Invalid, 974 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 867 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-13 14:31:39,037 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3354 Valid, 1236 Invalid, 974 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 867 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-13 14:31:39,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25042 states. [2022-12-13 14:31:39,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25042 to 7516. [2022-12-13 14:31:39,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7516 states, 7509 states have (on average 1.390997469703023) internal successors, (10445), 7515 states have internal predecessors, (10445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:31:39,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7516 states to 7516 states and 10445 transitions. [2022-12-13 14:31:39,864 INFO L78 Accepts]: Start accepts. Automaton has 7516 states and 10445 transitions. Word has length 67 [2022-12-13 14:31:39,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:31:39,865 INFO L495 AbstractCegarLoop]: Abstraction has 7516 states and 10445 transitions. [2022-12-13 14:31:39,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 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) [2022-12-13 14:31:39,865 INFO L276 IsEmpty]: Start isEmpty. Operand 7516 states and 10445 transitions. [2022-12-13 14:31:39,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-12-13 14:31:39,869 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:31:39,869 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] [2022-12-13 14:31:39,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 14:31:39,869 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 14:31:39,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:31:39,869 INFO L85 PathProgramCache]: Analyzing trace with hash 2008504829, now seen corresponding path program 1 times [2022-12-13 14:31:39,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:31:39,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834815414] [2022-12-13 14:31:39,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:31:39,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:31:39,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:31:40,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:31:40,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:31:40,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834815414] [2022-12-13 14:31:40,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834815414] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:31:40,000 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:31:40,001 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 14:31:40,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738529253] [2022-12-13 14:31:40,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:31:40,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 14:31:40,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:31:40,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 14:31:40,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 14:31:40,002 INFO L87 Difference]: Start difference. First operand 7516 states and 10445 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 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) [2022-12-13 14:31:45,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:31:45,543 INFO L93 Difference]: Finished difference Result 36677 states and 52253 transitions. [2022-12-13 14:31:45,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 14:31:45,544 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 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 [2022-12-13 14:31:45,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:31:45,581 INFO L225 Difference]: With dead ends: 36677 [2022-12-13 14:31:45,581 INFO L226 Difference]: Without dead ends: 33134 [2022-12-13 14:31:45,588 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-12-13 14:31:45,588 INFO L413 NwaCegarLoop]: 443 mSDtfsCounter, 5046 mSDsluCounter, 687 mSDsCounter, 0 mSdLazyCounter, 685 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5046 SdHoareTripleChecker+Valid, 1130 SdHoareTripleChecker+Invalid, 803 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-13 14:31:45,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5046 Valid, 1130 Invalid, 803 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 685 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-13 14:31:45,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33134 states. [2022-12-13 14:31:46,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33134 to 7584. [2022-12-13 14:31:46,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7584 states, 7577 states have (on average 1.3901280190048833) internal successors, (10533), 7583 states have internal predecessors, (10533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:31:46,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7584 states to 7584 states and 10533 transitions. [2022-12-13 14:31:46,705 INFO L78 Accepts]: Start accepts. Automaton has 7584 states and 10533 transitions. Word has length 67 [2022-12-13 14:31:46,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:31:46,705 INFO L495 AbstractCegarLoop]: Abstraction has 7584 states and 10533 transitions. [2022-12-13 14:31:46,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 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) [2022-12-13 14:31:46,705 INFO L276 IsEmpty]: Start isEmpty. Operand 7584 states and 10533 transitions. [2022-12-13 14:31:46,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-12-13 14:31:46,708 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:31:46,708 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] [2022-12-13 14:31:46,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 14:31:46,709 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 14:31:46,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:31:46,709 INFO L85 PathProgramCache]: Analyzing trace with hash 296799215, now seen corresponding path program 1 times [2022-12-13 14:31:46,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:31:46,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054482199] [2022-12-13 14:31:46,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:31:46,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:31:46,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:31:46,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:31:46,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:31:46,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054482199] [2022-12-13 14:31:46,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054482199] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:31:46,822 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:31:46,822 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 14:31:46,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837451100] [2022-12-13 14:31:46,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:31:46,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 14:31:46,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:31:46,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 14:31:46,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 14:31:46,823 INFO L87 Difference]: Start difference. First operand 7584 states and 10533 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 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) [2022-12-13 14:31:52,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:31:52,395 INFO L93 Difference]: Finished difference Result 32608 states and 46382 transitions. [2022-12-13 14:31:52,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 14:31:52,396 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 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 [2022-12-13 14:31:52,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:31:52,429 INFO L225 Difference]: With dead ends: 32608 [2022-12-13 14:31:52,430 INFO L226 Difference]: Without dead ends: 29247 [2022-12-13 14:31:52,436 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-12-13 14:31:52,436 INFO L413 NwaCegarLoop]: 437 mSDtfsCounter, 4613 mSDsluCounter, 675 mSDsCounter, 0 mSdLazyCounter, 693 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4613 SdHoareTripleChecker+Valid, 1112 SdHoareTripleChecker+Invalid, 810 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 693 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-13 14:31:52,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4613 Valid, 1112 Invalid, 810 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 693 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-13 14:31:52,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29247 states. [2022-12-13 14:31:53,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29247 to 7713. [2022-12-13 14:31:53,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7713 states, 7706 states have (on average 1.3890474954580847) internal successors, (10704), 7712 states have internal predecessors, (10704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:31:53,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7713 states to 7713 states and 10704 transitions. [2022-12-13 14:31:53,832 INFO L78 Accepts]: Start accepts. Automaton has 7713 states and 10704 transitions. Word has length 67 [2022-12-13 14:31:53,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:31:53,832 INFO L495 AbstractCegarLoop]: Abstraction has 7713 states and 10704 transitions. [2022-12-13 14:31:53,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 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) [2022-12-13 14:31:53,833 INFO L276 IsEmpty]: Start isEmpty. Operand 7713 states and 10704 transitions. [2022-12-13 14:31:53,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-12-13 14:31:53,836 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:31:53,836 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] [2022-12-13 14:31:53,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 14:31:53,836 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 14:31:53,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:31:53,836 INFO L85 PathProgramCache]: Analyzing trace with hash -766843701, now seen corresponding path program 1 times [2022-12-13 14:31:53,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:31:53,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957007585] [2022-12-13 14:31:53,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:31:53,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:31:53,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:31:54,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:31:54,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:31:54,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957007585] [2022-12-13 14:31:54,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957007585] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:31:54,043 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:31:54,043 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 14:31:54,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786195492] [2022-12-13 14:31:54,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:31:54,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 14:31:54,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:31:54,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 14:31:54,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-13 14:31:54,045 INFO L87 Difference]: Start difference. First operand 7713 states and 10704 transitions. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:31:58,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:31:58,334 INFO L93 Difference]: Finished difference Result 24010 states and 34216 transitions. [2022-12-13 14:31:58,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 14:31:58,334 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2022-12-13 14:31:58,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:31:58,352 INFO L225 Difference]: With dead ends: 24010 [2022-12-13 14:31:58,352 INFO L226 Difference]: Without dead ends: 19371 [2022-12-13 14:31:58,357 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-12-13 14:31:58,358 INFO L413 NwaCegarLoop]: 527 mSDtfsCounter, 2844 mSDsluCounter, 1584 mSDsCounter, 0 mSdLazyCounter, 1430 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2844 SdHoareTripleChecker+Valid, 2111 SdHoareTripleChecker+Invalid, 1454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-13 14:31:58,358 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2844 Valid, 2111 Invalid, 1454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1430 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-13 14:31:58,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19371 states. [2022-12-13 14:31:59,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19371 to 7704. [2022-12-13 14:31:59,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7704 states, 7697 states have (on average 1.3883331167987527) internal successors, (10686), 7703 states have internal predecessors, (10686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:31:59,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7704 states to 7704 states and 10686 transitions. [2022-12-13 14:31:59,641 INFO L78 Accepts]: Start accepts. Automaton has 7704 states and 10686 transitions. Word has length 68 [2022-12-13 14:31:59,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:31:59,641 INFO L495 AbstractCegarLoop]: Abstraction has 7704 states and 10686 transitions. [2022-12-13 14:31:59,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:31:59,641 INFO L276 IsEmpty]: Start isEmpty. Operand 7704 states and 10686 transitions. [2022-12-13 14:31:59,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-12-13 14:31:59,645 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:31:59,645 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] [2022-12-13 14:31:59,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-13 14:31:59,645 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 14:31:59,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:31:59,645 INFO L85 PathProgramCache]: Analyzing trace with hash -646757943, now seen corresponding path program 1 times [2022-12-13 14:31:59,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:31:59,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996586086] [2022-12-13 14:31:59,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:31:59,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:31:59,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:31:59,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:31:59,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:31:59,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996586086] [2022-12-13 14:31:59,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996586086] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:31:59,937 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:31:59,937 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 14:31:59,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493713200] [2022-12-13 14:31:59,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:31:59,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 14:31:59,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:31:59,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 14:31:59,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 14:31:59,939 INFO L87 Difference]: Start difference. First operand 7704 states and 10686 transitions. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:32:05,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:32:05,312 INFO L93 Difference]: Finished difference Result 24156 states and 34433 transitions. [2022-12-13 14:32:05,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 14:32:05,313 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2022-12-13 14:32:05,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:32:05,330 INFO L225 Difference]: With dead ends: 24156 [2022-12-13 14:32:05,330 INFO L226 Difference]: Without dead ends: 19487 [2022-12-13 14:32:05,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-12-13 14:32:05,335 INFO L413 NwaCegarLoop]: 506 mSDtfsCounter, 3891 mSDsluCounter, 1500 mSDsCounter, 0 mSdLazyCounter, 1309 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3891 SdHoareTripleChecker+Valid, 2006 SdHoareTripleChecker+Invalid, 1339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-13 14:32:05,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3891 Valid, 2006 Invalid, 1339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1309 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-13 14:32:05,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19487 states. [2022-12-13 14:32:06,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19487 to 7680. [2022-12-13 14:32:06,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7680 states, 7673 states have (on average 1.387592858073765) internal successors, (10647), 7679 states have internal predecessors, (10647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:32:06,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7680 states to 7680 states and 10647 transitions. [2022-12-13 14:32:06,795 INFO L78 Accepts]: Start accepts. Automaton has 7680 states and 10647 transitions. Word has length 68 [2022-12-13 14:32:06,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:32:06,795 INFO L495 AbstractCegarLoop]: Abstraction has 7680 states and 10647 transitions. [2022-12-13 14:32:06,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:32:06,795 INFO L276 IsEmpty]: Start isEmpty. Operand 7680 states and 10647 transitions. [2022-12-13 14:32:06,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-12-13 14:32:06,798 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:32:06,798 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] [2022-12-13 14:32:06,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-13 14:32:06,799 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 14:32:06,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:32:06,799 INFO L85 PathProgramCache]: Analyzing trace with hash 850267752, now seen corresponding path program 1 times [2022-12-13 14:32:06,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:32:06,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686855190] [2022-12-13 14:32:06,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:32:06,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:32:06,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:32:06,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:32:06,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:32:06,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686855190] [2022-12-13 14:32:06,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686855190] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:32:06,898 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:32:06,899 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 14:32:06,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959955934] [2022-12-13 14:32:06,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:32:06,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 14:32:06,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:32:06,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 14:32:06,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 14:32:06,900 INFO L87 Difference]: Start difference. First operand 7680 states and 10647 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:32:13,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:32:13,639 INFO L93 Difference]: Finished difference Result 28357 states and 40299 transitions. [2022-12-13 14:32:13,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 14:32:13,639 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2022-12-13 14:32:13,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:32:13,662 INFO L225 Difference]: With dead ends: 28357 [2022-12-13 14:32:13,662 INFO L226 Difference]: Without dead ends: 25260 [2022-12-13 14:32:13,667 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-12-13 14:32:13,668 INFO L413 NwaCegarLoop]: 479 mSDtfsCounter, 3338 mSDsluCounter, 758 mSDsCounter, 0 mSdLazyCounter, 862 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3338 SdHoareTripleChecker+Valid, 1237 SdHoareTripleChecker+Invalid, 969 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 862 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-13 14:32:13,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3338 Valid, 1237 Invalid, 969 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 862 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-13 14:32:13,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25260 states. [2022-12-13 14:32:15,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25260 to 7749. [2022-12-13 14:32:15,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7749 states, 7742 states have (on average 1.3877551020408163) internal successors, (10744), 7748 states have internal predecessors, (10744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:32:15,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7749 states to 7749 states and 10744 transitions. [2022-12-13 14:32:15,240 INFO L78 Accepts]: Start accepts. Automaton has 7749 states and 10744 transitions. Word has length 68 [2022-12-13 14:32:15,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:32:15,240 INFO L495 AbstractCegarLoop]: Abstraction has 7749 states and 10744 transitions. [2022-12-13 14:32:15,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:32:15,240 INFO L276 IsEmpty]: Start isEmpty. Operand 7749 states and 10744 transitions. [2022-12-13 14:32:15,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-12-13 14:32:15,243 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:32:15,243 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] [2022-12-13 14:32:15,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-13 14:32:15,244 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 14:32:15,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:32:15,244 INFO L85 PathProgramCache]: Analyzing trace with hash -16939312, now seen corresponding path program 1 times [2022-12-13 14:32:15,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:32:15,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999734615] [2022-12-13 14:32:15,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:32:15,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:32:15,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:32:15,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:32:15,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:32:15,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999734615] [2022-12-13 14:32:15,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999734615] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:32:15,432 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:32:15,432 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 14:32:15,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373890843] [2022-12-13 14:32:15,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:32:15,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 14:32:15,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:32:15,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 14:32:15,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-12-13 14:32:15,433 INFO L87 Difference]: Start difference. First operand 7749 states and 10744 transitions. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:32:23,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:32:23,217 INFO L93 Difference]: Finished difference Result 30527 states and 43611 transitions. [2022-12-13 14:32:23,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-13 14:32:23,217 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2022-12-13 14:32:23,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:32:23,243 INFO L225 Difference]: With dead ends: 30527 [2022-12-13 14:32:23,243 INFO L226 Difference]: Without dead ends: 25634 [2022-12-13 14:32:23,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=162, Invalid=438, Unknown=0, NotChecked=0, Total=600 [2022-12-13 14:32:23,250 INFO L413 NwaCegarLoop]: 503 mSDtfsCounter, 3592 mSDsluCounter, 1743 mSDsCounter, 0 mSdLazyCounter, 1416 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3592 SdHoareTripleChecker+Valid, 2246 SdHoareTripleChecker+Invalid, 1444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-13 14:32:23,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3592 Valid, 2246 Invalid, 1444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1416 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-13 14:32:23,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25634 states. [2022-12-13 14:32:24,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25634 to 7614. [2022-12-13 14:32:24,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7614 states, 7607 states have (on average 1.387537794136979) internal successors, (10555), 7613 states have internal predecessors, (10555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:32:24,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7614 states to 7614 states and 10555 transitions. [2022-12-13 14:32:24,946 INFO L78 Accepts]: Start accepts. Automaton has 7614 states and 10555 transitions. Word has length 68 [2022-12-13 14:32:24,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:32:24,946 INFO L495 AbstractCegarLoop]: Abstraction has 7614 states and 10555 transitions. [2022-12-13 14:32:24,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:32:24,947 INFO L276 IsEmpty]: Start isEmpty. Operand 7614 states and 10555 transitions. [2022-12-13 14:32:24,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-12-13 14:32:24,949 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:32:24,950 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] [2022-12-13 14:32:24,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-13 14:32:24,950 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 14:32:24,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:32:24,950 INFO L85 PathProgramCache]: Analyzing trace with hash -1623797592, now seen corresponding path program 1 times [2022-12-13 14:32:24,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:32:24,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938999338] [2022-12-13 14:32:24,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:32:24,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:32:24,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:32:25,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:32:25,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:32:25,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938999338] [2022-12-13 14:32:25,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938999338] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:32:25,132 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:32:25,132 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 14:32:25,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105319705] [2022-12-13 14:32:25,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:32:25,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 14:32:25,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:32:25,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 14:32:25,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-13 14:32:25,133 INFO L87 Difference]: Start difference. First operand 7614 states and 10555 transitions. Second operand has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:32:30,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:32:30,015 INFO L93 Difference]: Finished difference Result 20857 states and 29579 transitions. [2022-12-13 14:32:30,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 14:32:30,015 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2022-12-13 14:32:30,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:32:30,028 INFO L225 Difference]: With dead ends: 20857 [2022-12-13 14:32:30,028 INFO L226 Difference]: Without dead ends: 15464 [2022-12-13 14:32:30,032 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2022-12-13 14:32:30,033 INFO L413 NwaCegarLoop]: 518 mSDtfsCounter, 3373 mSDsluCounter, 1333 mSDsCounter, 0 mSdLazyCounter, 1295 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3373 SdHoareTripleChecker+Valid, 1851 SdHoareTripleChecker+Invalid, 1311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-13 14:32:30,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3373 Valid, 1851 Invalid, 1311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1295 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-13 14:32:30,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15464 states. [2022-12-13 14:32:31,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15464 to 7287. [2022-12-13 14:32:31,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7287 states, 7280 states have (on average 1.3862637362637362) internal successors, (10092), 7286 states have internal predecessors, (10092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:32:31,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7287 states to 7287 states and 10092 transitions. [2022-12-13 14:32:31,707 INFO L78 Accepts]: Start accepts. Automaton has 7287 states and 10092 transitions. Word has length 68 [2022-12-13 14:32:31,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:32:31,707 INFO L495 AbstractCegarLoop]: Abstraction has 7287 states and 10092 transitions. [2022-12-13 14:32:31,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:32:31,707 INFO L276 IsEmpty]: Start isEmpty. Operand 7287 states and 10092 transitions. [2022-12-13 14:32:31,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-12-13 14:32:31,710 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:32:31,710 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] [2022-12-13 14:32:31,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-13 14:32:31,710 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 14:32:31,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:32:31,710 INFO L85 PathProgramCache]: Analyzing trace with hash 601134174, now seen corresponding path program 1 times [2022-12-13 14:32:31,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:32:31,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934025176] [2022-12-13 14:32:31,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:32:31,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:32:31,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:32:32,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:32:32,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:32:32,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934025176] [2022-12-13 14:32:32,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934025176] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:32:32,161 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:32:32,161 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 14:32:32,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720411663] [2022-12-13 14:32:32,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:32:32,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 14:32:32,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:32:32,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 14:32:32,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-12-13 14:32:32,163 INFO L87 Difference]: Start difference. First operand 7287 states and 10092 transitions. Second operand has 12 states, 12 states have (on average 5.75) internal successors, (69), 12 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:32:44,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:32:44,610 INFO L93 Difference]: Finished difference Result 36644 states and 52526 transitions. [2022-12-13 14:32:44,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-13 14:32:44,611 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.75) internal successors, (69), 12 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2022-12-13 14:32:44,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:32:44,670 INFO L225 Difference]: With dead ends: 36644 [2022-12-13 14:32:44,670 INFO L226 Difference]: Without dead ends: 31716 [2022-12-13 14:32:44,677 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=155, Invalid=445, Unknown=0, NotChecked=0, Total=600 [2022-12-13 14:32:44,678 INFO L413 NwaCegarLoop]: 963 mSDtfsCounter, 4721 mSDsluCounter, 3968 mSDsCounter, 0 mSdLazyCounter, 687 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4721 SdHoareTripleChecker+Valid, 4931 SdHoareTripleChecker+Invalid, 712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 687 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-13 14:32:44,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4721 Valid, 4931 Invalid, 712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 687 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-13 14:32:44,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31716 states. [2022-12-13 14:32:46,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31716 to 6954. [2022-12-13 14:32:46,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6954 states, 6949 states have (on average 1.3889768311987336) internal successors, (9652), 6953 states have internal predecessors, (9652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:32:46,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6954 states to 6954 states and 9652 transitions. [2022-12-13 14:32:46,724 INFO L78 Accepts]: Start accepts. Automaton has 6954 states and 9652 transitions. Word has length 69 [2022-12-13 14:32:46,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:32:46,724 INFO L495 AbstractCegarLoop]: Abstraction has 6954 states and 9652 transitions. [2022-12-13 14:32:46,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.75) internal successors, (69), 12 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:32:46,724 INFO L276 IsEmpty]: Start isEmpty. Operand 6954 states and 9652 transitions. [2022-12-13 14:32:46,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-12-13 14:32:46,726 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:32:46,726 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] [2022-12-13 14:32:46,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-13 14:32:46,727 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 14:32:46,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:32:46,727 INFO L85 PathProgramCache]: Analyzing trace with hash -10442599, now seen corresponding path program 1 times [2022-12-13 14:32:46,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:32:46,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910969726] [2022-12-13 14:32:46,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:32:46,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:32:46,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:32:47,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:32:47,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:32:47,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910969726] [2022-12-13 14:32:47,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910969726] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:32:47,100 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:32:47,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 14:32:47,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791282183] [2022-12-13 14:32:47,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:32:47,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 14:32:47,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:32:47,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 14:32:47,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-12-13 14:32:47,101 INFO L87 Difference]: Start difference. First operand 6954 states and 9652 transitions. Second operand has 12 states, 12 states have (on average 5.75) internal successors, (69), 12 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:32:59,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:32:59,301 INFO L93 Difference]: Finished difference Result 35404 states and 50973 transitions. [2022-12-13 14:32:59,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-13 14:32:59,302 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.75) internal successors, (69), 12 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2022-12-13 14:32:59,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:32:59,333 INFO L225 Difference]: With dead ends: 35404 [2022-12-13 14:32:59,333 INFO L226 Difference]: Without dead ends: 30700 [2022-12-13 14:32:59,341 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=152, Invalid=448, Unknown=0, NotChecked=0, Total=600 [2022-12-13 14:32:59,341 INFO L413 NwaCegarLoop]: 816 mSDtfsCounter, 3647 mSDsluCounter, 4384 mSDsCounter, 0 mSdLazyCounter, 812 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3647 SdHoareTripleChecker+Valid, 5200 SdHoareTripleChecker+Invalid, 835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-13 14:32:59,342 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3647 Valid, 5200 Invalid, 835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 812 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-13 14:32:59,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30700 states. [2022-12-13 14:33:01,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30700 to 6869. [2022-12-13 14:33:01,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6869 states, 6865 states have (on average 1.3873270211216315) internal successors, (9524), 6868 states have internal predecessors, (9524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:33:01,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6869 states to 6869 states and 9524 transitions. [2022-12-13 14:33:01,548 INFO L78 Accepts]: Start accepts. Automaton has 6869 states and 9524 transitions. Word has length 69 [2022-12-13 14:33:01,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:33:01,548 INFO L495 AbstractCegarLoop]: Abstraction has 6869 states and 9524 transitions. [2022-12-13 14:33:01,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.75) internal successors, (69), 12 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:33:01,549 INFO L276 IsEmpty]: Start isEmpty. Operand 6869 states and 9524 transitions. [2022-12-13 14:33:01,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-12-13 14:33:01,551 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:33:01,551 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:33:01,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-13 14:33:01,551 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 14:33:01,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:33:01,552 INFO L85 PathProgramCache]: Analyzing trace with hash -2099777066, now seen corresponding path program 1 times [2022-12-13 14:33:01,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:33:01,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215950329] [2022-12-13 14:33:01,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:33:01,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:33:01,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:33:01,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:33:01,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:33:01,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215950329] [2022-12-13 14:33:01,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215950329] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:33:01,868 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:33:01,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 14:33:01,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135224572] [2022-12-13 14:33:01,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:33:01,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 14:33:01,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:33:01,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 14:33:01,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-12-13 14:33:01,869 INFO L87 Difference]: Start difference. First operand 6869 states and 9524 transitions. Second operand has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 11 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) [2022-12-13 14:33:15,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:33:15,428 INFO L93 Difference]: Finished difference Result 35047 states and 50463 transitions. [2022-12-13 14:33:15,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-13 14:33:15,428 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 11 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 [2022-12-13 14:33:15,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:33:15,457 INFO L225 Difference]: With dead ends: 35047 [2022-12-13 14:33:15,457 INFO L226 Difference]: Without dead ends: 30418 [2022-12-13 14:33:15,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=147, Invalid=405, Unknown=0, NotChecked=0, Total=552 [2022-12-13 14:33:15,464 INFO L413 NwaCegarLoop]: 754 mSDtfsCounter, 3872 mSDsluCounter, 4225 mSDsCounter, 0 mSdLazyCounter, 1041 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3872 SdHoareTripleChecker+Valid, 4979 SdHoareTripleChecker+Invalid, 1064 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1041 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-13 14:33:15,465 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3872 Valid, 4979 Invalid, 1064 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1041 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-13 14:33:15,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30418 states. [2022-12-13 14:33:18,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30418 to 6875. [2022-12-13 14:33:18,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6875 states, 6871 states have (on average 1.387279871925484) internal successors, (9532), 6874 states have internal predecessors, (9532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:33:18,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6875 states to 6875 states and 9532 transitions. [2022-12-13 14:33:18,092 INFO L78 Accepts]: Start accepts. Automaton has 6875 states and 9532 transitions. Word has length 69 [2022-12-13 14:33:18,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:33:18,092 INFO L495 AbstractCegarLoop]: Abstraction has 6875 states and 9532 transitions. [2022-12-13 14:33:18,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 11 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) [2022-12-13 14:33:18,093 INFO L276 IsEmpty]: Start isEmpty. Operand 6875 states and 9532 transitions. [2022-12-13 14:33:18,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-12-13 14:33:18,095 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:33:18,095 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:33:18,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-13 14:33:18,095 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 14:33:18,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:33:18,095 INFO L85 PathProgramCache]: Analyzing trace with hash -1281154285, now seen corresponding path program 1 times [2022-12-13 14:33:18,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:33:18,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235288398] [2022-12-13 14:33:18,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:33:18,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:33:18,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:33:18,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:33:18,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:33:18,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235288398] [2022-12-13 14:33:18,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235288398] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:33:18,177 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:33:18,177 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 14:33:18,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695811611] [2022-12-13 14:33:18,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:33:18,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 14:33:18,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:33:18,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 14:33:18,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 14:33:18,178 INFO L87 Difference]: Start difference. First operand 6875 states and 9532 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 6 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) [2022-12-13 14:33:32,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:33:32,596 INFO L93 Difference]: Finished difference Result 31167 states and 44465 transitions. [2022-12-13 14:33:32,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 14:33:32,597 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 6 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 [2022-12-13 14:33:32,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:33:32,623 INFO L225 Difference]: With dead ends: 31167 [2022-12-13 14:33:32,623 INFO L226 Difference]: Without dead ends: 28065 [2022-12-13 14:33:32,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-12-13 14:33:32,629 INFO L413 NwaCegarLoop]: 433 mSDtfsCounter, 3151 mSDsluCounter, 706 mSDsCounter, 0 mSdLazyCounter, 742 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3151 SdHoareTripleChecker+Valid, 1139 SdHoareTripleChecker+Invalid, 835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 742 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-13 14:33:32,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3151 Valid, 1139 Invalid, 835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 742 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-13 14:33:32,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28065 states. [2022-12-13 14:33:35,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28065 to 6893. [2022-12-13 14:33:35,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6893 states, 6889 states have (on average 1.3868485992161417) internal successors, (9554), 6892 states have internal predecessors, (9554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:33:35,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6893 states to 6893 states and 9554 transitions. [2022-12-13 14:33:35,275 INFO L78 Accepts]: Start accepts. Automaton has 6893 states and 9554 transitions. Word has length 69 [2022-12-13 14:33:35,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:33:35,275 INFO L495 AbstractCegarLoop]: Abstraction has 6893 states and 9554 transitions. [2022-12-13 14:33:35,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 6 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) [2022-12-13 14:33:35,275 INFO L276 IsEmpty]: Start isEmpty. Operand 6893 states and 9554 transitions. [2022-12-13 14:33:35,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-12-13 14:33:35,278 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:33:35,278 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] [2022-12-13 14:33:35,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-13 14:33:35,278 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 14:33:35,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:33:35,278 INFO L85 PathProgramCache]: Analyzing trace with hash 1218623503, now seen corresponding path program 1 times [2022-12-13 14:33:35,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:33:35,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822218118] [2022-12-13 14:33:35,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:33:35,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:33:35,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:33:35,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:33:35,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:33:35,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822218118] [2022-12-13 14:33:35,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822218118] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:33:35,678 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:33:35,678 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 14:33:35,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223135362] [2022-12-13 14:33:35,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:33:35,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 14:33:35,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:33:35,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 14:33:35,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-12-13 14:33:35,679 INFO L87 Difference]: Start difference. First operand 6893 states and 9554 transitions. Second operand has 12 states, 12 states have (on average 5.75) internal successors, (69), 12 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:33:52,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:33:52,383 INFO L93 Difference]: Finished difference Result 35017 states and 50426 transitions. [2022-12-13 14:33:52,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-13 14:33:52,384 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.75) internal successors, (69), 12 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2022-12-13 14:33:52,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:33:52,413 INFO L225 Difference]: With dead ends: 35017 [2022-12-13 14:33:52,413 INFO L226 Difference]: Without dead ends: 30384 [2022-12-13 14:33:52,420 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=152, Invalid=448, Unknown=0, NotChecked=0, Total=600 [2022-12-13 14:33:52,420 INFO L413 NwaCegarLoop]: 742 mSDtfsCounter, 3891 mSDsluCounter, 3490 mSDsCounter, 0 mSdLazyCounter, 896 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3891 SdHoareTripleChecker+Valid, 4232 SdHoareTripleChecker+Invalid, 926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 896 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-13 14:33:52,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3891 Valid, 4232 Invalid, 926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 896 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-13 14:33:52,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30384 states. [2022-12-13 14:33:55,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30384 to 6879. [2022-12-13 14:33:55,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6879 states, 6876 states have (on average 1.3858347876672483) internal successors, (9529), 6878 states have internal predecessors, (9529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:33:55,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6879 states to 6879 states and 9529 transitions. [2022-12-13 14:33:55,233 INFO L78 Accepts]: Start accepts. Automaton has 6879 states and 9529 transitions. Word has length 69 [2022-12-13 14:33:55,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:33:55,233 INFO L495 AbstractCegarLoop]: Abstraction has 6879 states and 9529 transitions. [2022-12-13 14:33:55,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.75) internal successors, (69), 12 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:33:55,233 INFO L276 IsEmpty]: Start isEmpty. Operand 6879 states and 9529 transitions. [2022-12-13 14:33:55,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-12-13 14:33:55,236 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:33:55,236 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] [2022-12-13 14:33:55,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-13 14:33:55,236 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 14:33:55,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:33:55,237 INFO L85 PathProgramCache]: Analyzing trace with hash -1903821217, now seen corresponding path program 1 times [2022-12-13 14:33:55,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:33:55,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220709477] [2022-12-13 14:33:55,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:33:55,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:33:55,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:33:55,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:33:55,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:33:55,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220709477] [2022-12-13 14:33:55,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220709477] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:33:55,276 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:33:55,276 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 14:33:55,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016775261] [2022-12-13 14:33:55,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:33:55,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:33:55,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:33:55,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:33:55,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:33:55,277 INFO L87 Difference]: Start difference. First operand 6879 states and 9529 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:33:57,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:33:57,988 INFO L93 Difference]: Finished difference Result 10380 states and 14513 transitions. [2022-12-13 14:33:57,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:33:57,989 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2022-12-13 14:33:57,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:33:57,994 INFO L225 Difference]: With dead ends: 10380 [2022-12-13 14:33:57,994 INFO L226 Difference]: Without dead ends: 6885 [2022-12-13 14:33:57,997 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 [2022-12-13 14:33:57,997 INFO L413 NwaCegarLoop]: 777 mSDtfsCounter, 356 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 1320 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 14:33:57,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [356 Valid, 1320 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 14:33:58,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6885 states. [2022-12-13 14:34:00,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6885 to 6879. [2022-12-13 14:34:00,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6879 states, 6876 states have (on average 1.3749272833042467) internal successors, (9454), 6878 states have internal predecessors, (9454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:34:00,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6879 states to 6879 states and 9454 transitions. [2022-12-13 14:34:00,700 INFO L78 Accepts]: Start accepts. Automaton has 6879 states and 9454 transitions. Word has length 70 [2022-12-13 14:34:00,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:34:00,700 INFO L495 AbstractCegarLoop]: Abstraction has 6879 states and 9454 transitions. [2022-12-13 14:34:00,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:34:00,700 INFO L276 IsEmpty]: Start isEmpty. Operand 6879 states and 9454 transitions. [2022-12-13 14:34:00,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-12-13 14:34:00,702 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:34:00,703 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:34:00,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-13 14:34:00,703 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 14:34:00,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:34:00,703 INFO L85 PathProgramCache]: Analyzing trace with hash 309786751, now seen corresponding path program 1 times [2022-12-13 14:34:00,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:34:00,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88607301] [2022-12-13 14:34:00,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:34:00,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:34:00,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:34:00,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:34:00,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:34:00,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88607301] [2022-12-13 14:34:00,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88607301] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:34:00,735 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:34:00,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 14:34:00,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011362233] [2022-12-13 14:34:00,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:34:00,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:34:00,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:34:00,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:34:00,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:34:00,736 INFO L87 Difference]: Start difference. First operand 6879 states and 9454 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:34:04,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:34:04,247 INFO L93 Difference]: Finished difference Result 12487 states and 17340 transitions. [2022-12-13 14:34:04,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:34:04,248 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-12-13 14:34:04,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:34:04,254 INFO L225 Difference]: With dead ends: 12487 [2022-12-13 14:34:04,254 INFO L226 Difference]: Without dead ends: 8378 [2022-12-13 14:34:04,257 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 [2022-12-13 14:34:04,257 INFO L413 NwaCegarLoop]: 609 mSDtfsCounter, 526 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 526 SdHoareTripleChecker+Valid, 827 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 14:34:04,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [526 Valid, 827 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 14:34:04,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8378 states. [2022-12-13 14:34:06,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8378 to 6326. [2022-12-13 14:34:06,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6326 states, 6323 states have (on average 1.3803574252728135) internal successors, (8728), 6325 states have internal predecessors, (8728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:34:06,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6326 states to 6326 states and 8728 transitions. [2022-12-13 14:34:06,882 INFO L78 Accepts]: Start accepts. Automaton has 6326 states and 8728 transitions. Word has length 71 [2022-12-13 14:34:06,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:34:06,882 INFO L495 AbstractCegarLoop]: Abstraction has 6326 states and 8728 transitions. [2022-12-13 14:34:06,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:34:06,882 INFO L276 IsEmpty]: Start isEmpty. Operand 6326 states and 8728 transitions. [2022-12-13 14:34:06,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-12-13 14:34:06,884 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:34:06,885 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] [2022-12-13 14:34:06,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-12-13 14:34:06,885 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 14:34:06,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:34:06,885 INFO L85 PathProgramCache]: Analyzing trace with hash 988722201, now seen corresponding path program 1 times [2022-12-13 14:34:06,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:34:06,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243128334] [2022-12-13 14:34:06,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:34:06,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:34:06,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:34:06,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:34:06,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:34:06,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243128334] [2022-12-13 14:34:06,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243128334] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:34:06,917 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:34:06,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 14:34:06,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414258227] [2022-12-13 14:34:06,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:34:06,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:34:06,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:34:06,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:34:06,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:34:06,918 INFO L87 Difference]: Start difference. First operand 6326 states and 8728 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:34:11,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:34:11,339 INFO L93 Difference]: Finished difference Result 12989 states and 18162 transitions. [2022-12-13 14:34:11,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:34:11,339 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-12-13 14:34:11,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:34:11,346 INFO L225 Difference]: With dead ends: 12989 [2022-12-13 14:34:11,346 INFO L226 Difference]: Without dead ends: 9162 [2022-12-13 14:34:11,348 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 [2022-12-13 14:34:11,349 INFO L413 NwaCegarLoop]: 447 mSDtfsCounter, 425 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 425 SdHoareTripleChecker+Valid, 607 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 14:34:11,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [425 Valid, 607 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 14:34:11,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9162 states. [2022-12-13 14:34:15,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9162 to 9133. [2022-12-13 14:34:15,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9133 states, 9131 states have (on average 1.4028036359653926) internal successors, (12809), 9132 states have internal predecessors, (12809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:34:15,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9133 states to 9133 states and 12809 transitions. [2022-12-13 14:34:15,584 INFO L78 Accepts]: Start accepts. Automaton has 9133 states and 12809 transitions. Word has length 71 [2022-12-13 14:34:15,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:34:15,584 INFO L495 AbstractCegarLoop]: Abstraction has 9133 states and 12809 transitions. [2022-12-13 14:34:15,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:34:15,585 INFO L276 IsEmpty]: Start isEmpty. Operand 9133 states and 12809 transitions. [2022-12-13 14:34:15,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-12-13 14:34:15,587 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:34:15,587 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] [2022-12-13 14:34:15,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-12-13 14:34:15,587 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 14:34:15,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:34:15,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1452200258, now seen corresponding path program 1 times [2022-12-13 14:34:15,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:34:15,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528694813] [2022-12-13 14:34:15,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:34:15,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:34:15,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:34:15,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:34:15,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:34:15,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528694813] [2022-12-13 14:34:15,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528694813] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:34:15,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:34:15,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 14:34:15,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190565313] [2022-12-13 14:34:15,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:34:15,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 14:34:15,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:34:15,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 14:34:15,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 14:34:15,754 INFO L87 Difference]: Start difference. First operand 9133 states and 12809 transitions. Second operand has 9 states, 9 states have (on average 8.0) internal successors, (72), 8 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:34:22,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:34:22,653 INFO L93 Difference]: Finished difference Result 14544 states and 20526 transitions. [2022-12-13 14:34:22,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 14:34:22,653 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.0) internal successors, (72), 8 states have internal predecessors, (72), 0 states have call successors, (0), 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 72 [2022-12-13 14:34:22,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:34:22,662 INFO L225 Difference]: With dead ends: 14544 [2022-12-13 14:34:22,662 INFO L226 Difference]: Without dead ends: 11960 [2022-12-13 14:34:22,665 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-12-13 14:34:22,665 INFO L413 NwaCegarLoop]: 384 mSDtfsCounter, 2692 mSDsluCounter, 1130 mSDsCounter, 0 mSdLazyCounter, 1026 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2692 SdHoareTripleChecker+Valid, 1514 SdHoareTripleChecker+Invalid, 1049 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1026 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-13 14:34:22,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2692 Valid, 1514 Invalid, 1049 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1026 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-13 14:34:22,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11960 states. [2022-12-13 14:34:27,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11960 to 9130. [2022-12-13 14:34:27,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9130 states, 9128 states have (on average 1.4026073619631902) internal successors, (12803), 9129 states have internal predecessors, (12803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:34:27,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9130 states to 9130 states and 12803 transitions. [2022-12-13 14:34:27,100 INFO L78 Accepts]: Start accepts. Automaton has 9130 states and 12803 transitions. Word has length 72 [2022-12-13 14:34:27,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:34:27,100 INFO L495 AbstractCegarLoop]: Abstraction has 9130 states and 12803 transitions. [2022-12-13 14:34:27,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.0) internal successors, (72), 8 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:34:27,100 INFO L276 IsEmpty]: Start isEmpty. Operand 9130 states and 12803 transitions. [2022-12-13 14:34:27,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-12-13 14:34:27,102 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:34:27,102 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, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:34:27,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-12-13 14:34:27,103 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 14:34:27,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:34:27,103 INFO L85 PathProgramCache]: Analyzing trace with hash 829917559, now seen corresponding path program 1 times [2022-12-13 14:34:27,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:34:27,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324687882] [2022-12-13 14:34:27,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:34:27,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:34:27,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:34:27,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:34:27,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:34:27,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324687882] [2022-12-13 14:34:27,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324687882] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:34:27,140 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:34:27,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 14:34:27,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236825631] [2022-12-13 14:34:27,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:34:27,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:34:27,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:34:27,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:34:27,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:34:27,141 INFO L87 Difference]: Start difference. First operand 9130 states and 12803 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:34:31,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:34:31,548 INFO L93 Difference]: Finished difference Result 14150 states and 19965 transitions. [2022-12-13 14:34:31,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:34:31,549 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2022-12-13 14:34:31,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:34:31,555 INFO L225 Difference]: With dead ends: 14150 [2022-12-13 14:34:31,555 INFO L226 Difference]: Without dead ends: 9134 [2022-12-13 14:34:31,558 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 [2022-12-13 14:34:31,559 INFO L413 NwaCegarLoop]: 616 mSDtfsCounter, 245 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 983 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 14:34:31,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 983 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 14:34:31,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9134 states. [2022-12-13 14:34:35,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9134 to 9130. [2022-12-13 14:34:35,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9130 states, 9128 states have (on average 1.389241893076249) internal successors, (12681), 9129 states have internal predecessors, (12681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:34:35,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9130 states to 9130 states and 12681 transitions. [2022-12-13 14:34:35,897 INFO L78 Accepts]: Start accepts. Automaton has 9130 states and 12681 transitions. Word has length 73 [2022-12-13 14:34:35,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:34:35,897 INFO L495 AbstractCegarLoop]: Abstraction has 9130 states and 12681 transitions. [2022-12-13 14:34:35,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:34:35,897 INFO L276 IsEmpty]: Start isEmpty. Operand 9130 states and 12681 transitions. [2022-12-13 14:34:35,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-12-13 14:34:35,900 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:34:35,900 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] [2022-12-13 14:34:35,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-12-13 14:34:35,900 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 14:34:35,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:34:35,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1577670508, now seen corresponding path program 1 times [2022-12-13 14:34:35,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:34:35,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811236579] [2022-12-13 14:34:35,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:34:35,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:34:35,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:34:36,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:34:36,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:34:36,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811236579] [2022-12-13 14:34:36,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811236579] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:34:36,155 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:34:36,155 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 14:34:36,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642536518] [2022-12-13 14:34:36,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:34:36,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 14:34:36,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:34:36,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 14:34:36,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-12-13 14:34:36,156 INFO L87 Difference]: Start difference. First operand 9130 states and 12681 transitions. Second operand has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 11 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:34:53,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:34:53,440 INFO L93 Difference]: Finished difference Result 32337 states and 45685 transitions. [2022-12-13 14:34:53,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-13 14:34:53,441 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 11 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2022-12-13 14:34:53,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:34:53,469 INFO L225 Difference]: With dead ends: 32337 [2022-12-13 14:34:53,469 INFO L226 Difference]: Without dead ends: 29678 [2022-12-13 14:34:53,474 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=203, Invalid=499, Unknown=0, NotChecked=0, Total=702 [2022-12-13 14:34:53,475 INFO L413 NwaCegarLoop]: 655 mSDtfsCounter, 3570 mSDsluCounter, 3049 mSDsCounter, 0 mSdLazyCounter, 720 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3570 SdHoareTripleChecker+Valid, 3704 SdHoareTripleChecker+Invalid, 734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 720 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-13 14:34:53,475 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3570 Valid, 3704 Invalid, 734 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 720 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-13 14:34:53,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29678 states. [2022-12-13 14:34:58,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29678 to 8989. [2022-12-13 14:34:58,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8989 states, 8987 states have (on average 1.3915655947479693) internal successors, (12506), 8988 states have internal predecessors, (12506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:34:58,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8989 states to 8989 states and 12506 transitions. [2022-12-13 14:34:58,368 INFO L78 Accepts]: Start accepts. Automaton has 8989 states and 12506 transitions. Word has length 75 [2022-12-13 14:34:58,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:34:58,368 INFO L495 AbstractCegarLoop]: Abstraction has 8989 states and 12506 transitions. [2022-12-13 14:34:58,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 11 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:34:58,368 INFO L276 IsEmpty]: Start isEmpty. Operand 8989 states and 12506 transitions. [2022-12-13 14:34:58,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-12-13 14:34:58,371 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:34:58,371 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] [2022-12-13 14:34:58,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-12-13 14:34:58,371 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 14:34:58,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:34:58,371 INFO L85 PathProgramCache]: Analyzing trace with hash 2128427700, now seen corresponding path program 1 times [2022-12-13 14:34:58,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:34:58,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432248844] [2022-12-13 14:34:58,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:34:58,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:34:58,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:34:58,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:34:58,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:34:58,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432248844] [2022-12-13 14:34:58,403 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432248844] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:34:58,403 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:34:58,404 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 14:34:58,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783818602] [2022-12-13 14:34:58,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:34:58,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:34:58,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:34:58,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:34:58,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:34:58,405 INFO L87 Difference]: Start difference. First operand 8989 states and 12506 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:35:04,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:35:04,816 INFO L93 Difference]: Finished difference Result 16990 states and 23794 transitions. [2022-12-13 14:35:04,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:35:04,817 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2022-12-13 14:35:04,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:35:04,826 INFO L225 Difference]: With dead ends: 16990 [2022-12-13 14:35:04,826 INFO L226 Difference]: Without dead ends: 11247 [2022-12-13 14:35:04,830 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 [2022-12-13 14:35:04,830 INFO L413 NwaCegarLoop]: 325 mSDtfsCounter, 308 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 14:35:04,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [308 Valid, 465 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 14:35:04,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11247 states. [2022-12-13 14:35:09,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11247 to 8576. [2022-12-13 14:35:09,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8576 states, 8575 states have (on average 1.3945189504373179) internal successors, (11958), 8575 states have internal predecessors, (11958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:35:09,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8576 states to 8576 states and 11958 transitions. [2022-12-13 14:35:09,500 INFO L78 Accepts]: Start accepts. Automaton has 8576 states and 11958 transitions. Word has length 75 [2022-12-13 14:35:09,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:35:09,500 INFO L495 AbstractCegarLoop]: Abstraction has 8576 states and 11958 transitions. [2022-12-13 14:35:09,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:35:09,500 INFO L276 IsEmpty]: Start isEmpty. Operand 8576 states and 11958 transitions. [2022-12-13 14:35:09,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-12-13 14:35:09,504 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:35:09,504 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] [2022-12-13 14:35:09,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-12-13 14:35:09,504 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 14:35:09,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:35:09,504 INFO L85 PathProgramCache]: Analyzing trace with hash -485578834, now seen corresponding path program 1 times [2022-12-13 14:35:09,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:35:09,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877050015] [2022-12-13 14:35:09,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:35:09,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:35:09,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:35:09,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:35:09,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:35:09,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877050015] [2022-12-13 14:35:09,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877050015] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:35:09,572 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:35:09,572 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 14:35:09,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514349149] [2022-12-13 14:35:09,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:35:09,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 14:35:09,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:35:09,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 14:35:09,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 14:35:09,573 INFO L87 Difference]: Start difference. First operand 8576 states and 11958 transitions. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:35:26,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:35:26,538 INFO L93 Difference]: Finished difference Result 35295 states and 50312 transitions. [2022-12-13 14:35:26,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 14:35:26,539 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2022-12-13 14:35:26,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:35:26,566 INFO L225 Difference]: With dead ends: 35295 [2022-12-13 14:35:26,566 INFO L226 Difference]: Without dead ends: 28066 [2022-12-13 14:35:26,574 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-12-13 14:35:26,574 INFO L413 NwaCegarLoop]: 341 mSDtfsCounter, 1766 mSDsluCounter, 754 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1766 SdHoareTripleChecker+Valid, 1095 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 14:35:26,575 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1766 Valid, 1095 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 14:35:26,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28066 states. [2022-12-13 14:35:36,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28066 to 15803. [2022-12-13 14:35:36,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15803 states, 15802 states have (on average 1.3963422351601062) internal successors, (22065), 15802 states have internal predecessors, (22065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:35:36,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15803 states to 15803 states and 22065 transitions. [2022-12-13 14:35:36,036 INFO L78 Accepts]: Start accepts. Automaton has 15803 states and 22065 transitions. Word has length 84 [2022-12-13 14:35:36,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:35:36,036 INFO L495 AbstractCegarLoop]: Abstraction has 15803 states and 22065 transitions. [2022-12-13 14:35:36,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:35:36,037 INFO L276 IsEmpty]: Start isEmpty. Operand 15803 states and 22065 transitions. [2022-12-13 14:35:36,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-12-13 14:35:36,043 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:35:36,043 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] [2022-12-13 14:35:36,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-12-13 14:35:36,043 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 14:35:36,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:35:36,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1437916483, now seen corresponding path program 1 times [2022-12-13 14:35:36,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:35:36,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234776406] [2022-12-13 14:35:36,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:35:36,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:35:36,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:35:36,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:35:36,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:35:36,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234776406] [2022-12-13 14:35:36,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234776406] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:35:36,115 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:35:36,115 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 14:35:36,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791492374] [2022-12-13 14:35:36,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:35:36,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 14:35:36,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:35:36,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 14:35:36,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 14:35:36,116 INFO L87 Difference]: Start difference. First operand 15803 states and 22065 transitions. Second operand has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:35:48,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:35:48,506 INFO L93 Difference]: Finished difference Result 26005 states and 36306 transitions. [2022-12-13 14:35:48,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 14:35:48,507 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2022-12-13 14:35:48,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:35:48,524 INFO L225 Difference]: With dead ends: 26005 [2022-12-13 14:35:48,524 INFO L226 Difference]: Without dead ends: 20153 [2022-12-13 14:35:48,529 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 14:35:48,530 INFO L413 NwaCegarLoop]: 613 mSDtfsCounter, 894 mSDsluCounter, 554 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 894 SdHoareTripleChecker+Valid, 1167 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 14:35:48,530 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [894 Valid, 1167 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 14:35:48,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20153 states. [2022-12-13 14:36:00,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20153 to 17585. [2022-12-13 14:36:00,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17585 states, 17584 states have (on average 1.3942220200181983) internal successors, (24516), 17584 states have internal predecessors, (24516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:36:00,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17585 states to 17585 states and 24516 transitions. [2022-12-13 14:36:00,125 INFO L78 Accepts]: Start accepts. Automaton has 17585 states and 24516 transitions. Word has length 85 [2022-12-13 14:36:00,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:36:00,125 INFO L495 AbstractCegarLoop]: Abstraction has 17585 states and 24516 transitions. [2022-12-13 14:36:00,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:36:00,125 INFO L276 IsEmpty]: Start isEmpty. Operand 17585 states and 24516 transitions. [2022-12-13 14:36:00,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-12-13 14:36:00,133 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:36:00,133 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] [2022-12-13 14:36:00,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-12-13 14:36:00,133 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 14:36:00,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:36:00,133 INFO L85 PathProgramCache]: Analyzing trace with hash -1391083626, now seen corresponding path program 1 times [2022-12-13 14:36:00,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:36:00,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731752676] [2022-12-13 14:36:00,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:36:00,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:36:00,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:36:00,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:36:00,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:36:00,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731752676] [2022-12-13 14:36:00,171 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731752676] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:36:00,171 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:36:00,171 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 14:36:00,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190675820] [2022-12-13 14:36:00,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:36:00,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:36:00,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:36:00,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:36:00,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:36:00,172 INFO L87 Difference]: Start difference. First operand 17585 states and 24516 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:36:10,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:36:10,053 INFO L93 Difference]: Finished difference Result 26307 states and 36670 transitions. [2022-12-13 14:36:10,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:36:10,054 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2022-12-13 14:36:10,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:36:10,067 INFO L225 Difference]: With dead ends: 26307 [2022-12-13 14:36:10,067 INFO L226 Difference]: Without dead ends: 14755 [2022-12-13 14:36:10,072 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 [2022-12-13 14:36:10,073 INFO L413 NwaCegarLoop]: 484 mSDtfsCounter, 215 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 812 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 14:36:10,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 812 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 14:36:10,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14755 states. [2022-12-13 14:36:19,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14755 to 14753. [2022-12-13 14:36:19,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14753 states, 14752 states have (on average 1.3800162689804771) internal successors, (20358), 14752 states have internal predecessors, (20358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:36:19,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14753 states to 14753 states and 20358 transitions. [2022-12-13 14:36:19,886 INFO L78 Accepts]: Start accepts. Automaton has 14753 states and 20358 transitions. Word has length 86 [2022-12-13 14:36:19,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:36:19,886 INFO L495 AbstractCegarLoop]: Abstraction has 14753 states and 20358 transitions. [2022-12-13 14:36:19,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:36:19,886 INFO L276 IsEmpty]: Start isEmpty. Operand 14753 states and 20358 transitions. [2022-12-13 14:36:19,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-12-13 14:36:19,894 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:36:19,894 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:36:19,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-12-13 14:36:19,895 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 14:36:19,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:36:19,895 INFO L85 PathProgramCache]: Analyzing trace with hash -214737700, now seen corresponding path program 1 times [2022-12-13 14:36:19,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:36:19,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732068435] [2022-12-13 14:36:19,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:36:19,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:36:19,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:36:19,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:36:19,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:36:19,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732068435] [2022-12-13 14:36:19,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732068435] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:36:19,964 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:36:19,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 14:36:19,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463418767] [2022-12-13 14:36:19,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:36:19,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:36:19,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:36:19,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:36:19,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:36:19,965 INFO L87 Difference]: Start difference. First operand 14753 states and 20358 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:36:38,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:36:38,935 INFO L93 Difference]: Finished difference Result 40825 states and 56776 transitions. [2022-12-13 14:36:38,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:36:38,936 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2022-12-13 14:36:38,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:36:38,963 INFO L225 Difference]: With dead ends: 40825 [2022-12-13 14:36:38,963 INFO L226 Difference]: Without dead ends: 27349 [2022-12-13 14:36:38,972 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:36:38,973 INFO L413 NwaCegarLoop]: 426 mSDtfsCounter, 142 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 726 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 14:36:38,973 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 726 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 14:36:38,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27349 states. [2022-12-13 14:36:56,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27349 to 25971. [2022-12-13 14:36:56,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25971 states, 25970 states have (on average 1.383673469387755) internal successors, (35934), 25970 states have internal predecessors, (35934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:36:56,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25971 states to 25971 states and 35934 transitions. [2022-12-13 14:36:56,940 INFO L78 Accepts]: Start accepts. Automaton has 25971 states and 35934 transitions. Word has length 86 [2022-12-13 14:36:56,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:36:56,940 INFO L495 AbstractCegarLoop]: Abstraction has 25971 states and 35934 transitions. [2022-12-13 14:36:56,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:36:56,940 INFO L276 IsEmpty]: Start isEmpty. Operand 25971 states and 35934 transitions. [2022-12-13 14:36:56,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-12-13 14:36:56,946 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:36:56,946 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] [2022-12-13 14:36:56,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-12-13 14:36:56,946 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 14:36:56,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:36:56,946 INFO L85 PathProgramCache]: Analyzing trace with hash 1393258625, now seen corresponding path program 1 times [2022-12-13 14:36:56,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:36:56,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75596651] [2022-12-13 14:36:56,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:36:56,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:36:56,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:36:57,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:36:57,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:36:57,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75596651] [2022-12-13 14:36:57,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75596651] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:36:57,008 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:36:57,008 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 14:36:57,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988187909] [2022-12-13 14:36:57,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:36:57,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:36:57,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:36:57,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:36:57,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:36:57,009 INFO L87 Difference]: Start difference. First operand 25971 states and 35934 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:37:31,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:37:31,849 INFO L93 Difference]: Finished difference Result 73575 states and 101888 transitions. [2022-12-13 14:37:31,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:37:31,849 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 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 87 [2022-12-13 14:37:31,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:37:31,905 INFO L225 Difference]: With dead ends: 73575 [2022-12-13 14:37:31,906 INFO L226 Difference]: Without dead ends: 48881 [2022-12-13 14:37:31,924 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 [2022-12-13 14:37:31,924 INFO L413 NwaCegarLoop]: 408 mSDtfsCounter, 129 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 712 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 14:37:31,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 712 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 14:37:31,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48881 states. [2022-12-13 14:38:04,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48881 to 45959. [2022-12-13 14:38:04,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45959 states, 45958 states have (on average 1.3728621785108142) internal successors, (63094), 45958 states have internal predecessors, (63094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:38:04,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45959 states to 45959 states and 63094 transitions. [2022-12-13 14:38:04,460 INFO L78 Accepts]: Start accepts. Automaton has 45959 states and 63094 transitions. Word has length 87 [2022-12-13 14:38:04,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:38:04,460 INFO L495 AbstractCegarLoop]: Abstraction has 45959 states and 63094 transitions. [2022-12-13 14:38:04,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:38:04,460 INFO L276 IsEmpty]: Start isEmpty. Operand 45959 states and 63094 transitions. [2022-12-13 14:38:04,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-12-13 14:38:04,465 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:38:04,465 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] [2022-12-13 14:38:04,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-12-13 14:38:04,466 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 14:38:04,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:38:04,466 INFO L85 PathProgramCache]: Analyzing trace with hash -746388302, now seen corresponding path program 1 times [2022-12-13 14:38:04,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:38:04,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606129374] [2022-12-13 14:38:04,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:38:04,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:38:04,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:38:04,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:38:04,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:38:04,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606129374] [2022-12-13 14:38:04,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606129374] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:38:04,507 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:38:04,507 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 14:38:04,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926952663] [2022-12-13 14:38:04,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:38:04,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:38:04,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:38:04,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:38:04,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:38:04,508 INFO L87 Difference]: Start difference. First operand 45959 states and 63094 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:38:27,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:38:27,142 INFO L93 Difference]: Finished difference Result 52683 states and 72342 transitions. [2022-12-13 14:38:27,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:38:27,143 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 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 88 [2022-12-13 14:38:27,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:38:27,186 INFO L225 Difference]: With dead ends: 52683 [2022-12-13 14:38:27,187 INFO L226 Difference]: Without dead ends: 34462 [2022-12-13 14:38:27,200 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 [2022-12-13 14:38:27,201 INFO L413 NwaCegarLoop]: 493 mSDtfsCounter, 198 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 752 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 14:38:27,201 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 752 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 14:38:27,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34462 states. [2022-12-13 14:38:43,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34462 to 24563. [2022-12-13 14:38:43,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24563 states, 24562 states have (on average 1.3664196726650923) internal successors, (33562), 24562 states have internal predecessors, (33562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:38:43,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24563 states to 24563 states and 33562 transitions. [2022-12-13 14:38:43,366 INFO L78 Accepts]: Start accepts. Automaton has 24563 states and 33562 transitions. Word has length 88 [2022-12-13 14:38:43,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:38:43,366 INFO L495 AbstractCegarLoop]: Abstraction has 24563 states and 33562 transitions. [2022-12-13 14:38:43,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:38:43,366 INFO L276 IsEmpty]: Start isEmpty. Operand 24563 states and 33562 transitions. [2022-12-13 14:38:43,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-12-13 14:38:43,369 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:38:43,369 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] [2022-12-13 14:38:43,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-12-13 14:38:43,370 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 14:38:43,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:38:43,370 INFO L85 PathProgramCache]: Analyzing trace with hash -384451911, now seen corresponding path program 1 times [2022-12-13 14:38:43,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:38:43,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187593848] [2022-12-13 14:38:43,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:38:43,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:38:43,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:38:43,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:38:43,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:38:43,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187593848] [2022-12-13 14:38:43,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187593848] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:38:43,427 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:38:43,427 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 14:38:43,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797319957] [2022-12-13 14:38:43,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:38:43,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:38:43,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:38:43,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:38:43,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:38:43,428 INFO L87 Difference]: Start difference. First operand 24563 states and 33562 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:39:13,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:39:13,823 INFO L93 Difference]: Finished difference Result 68519 states and 93676 transitions. [2022-12-13 14:39:13,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:39:13,824 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 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 89 [2022-12-13 14:39:13,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:39:13,874 INFO L225 Difference]: With dead ends: 68519 [2022-12-13 14:39:13,874 INFO L226 Difference]: Without dead ends: 45101 [2022-12-13 14:39:13,890 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 [2022-12-13 14:39:13,891 INFO L413 NwaCegarLoop]: 454 mSDtfsCounter, 151 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 747 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 14:39:13,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 747 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 14:39:13,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45101 states. [2022-12-13 14:39:41,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45101 to 41675. [2022-12-13 14:39:41,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41675 states, 41674 states have (on average 1.356289293084417) internal successors, (56522), 41674 states have internal predecessors, (56522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:39:41,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41675 states to 41675 states and 56522 transitions. [2022-12-13 14:39:41,909 INFO L78 Accepts]: Start accepts. Automaton has 41675 states and 56522 transitions. Word has length 89 [2022-12-13 14:39:41,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:39:41,909 INFO L495 AbstractCegarLoop]: Abstraction has 41675 states and 56522 transitions. [2022-12-13 14:39:41,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:39:41,910 INFO L276 IsEmpty]: Start isEmpty. Operand 41675 states and 56522 transitions. [2022-12-13 14:39:41,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-12-13 14:39:41,913 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:39:41,913 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:39:41,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-12-13 14:39:41,913 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 14:39:41,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:39:41,913 INFO L85 PathProgramCache]: Analyzing trace with hash -2033472567, now seen corresponding path program 1 times [2022-12-13 14:39:41,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:39:41,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470130495] [2022-12-13 14:39:41,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:39:41,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:39:41,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:39:41,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:39:41,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:39:41,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470130495] [2022-12-13 14:39:41,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470130495] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:39:41,975 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:39:41,975 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 14:39:41,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092758381] [2022-12-13 14:39:41,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:39:41,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:39:41,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:39:41,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:39:41,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:39:41,977 INFO L87 Difference]: Start difference. First operand 41675 states and 56522 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:40:36,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:40:36,854 INFO L93 Difference]: Finished difference Result 119055 states and 161324 transitions. [2022-12-13 14:40:36,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:40:36,855 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 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 89 [2022-12-13 14:40:36,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:40:36,955 INFO L225 Difference]: With dead ends: 119055 [2022-12-13 14:40:36,955 INFO L226 Difference]: Without dead ends: 78525 [2022-12-13 14:40:36,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:40:36,989 INFO L413 NwaCegarLoop]: 403 mSDtfsCounter, 107 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 712 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 14:40:36,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 712 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 14:40:37,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78525 states. [2022-12-13 14:41:29,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78525 to 72891. [2022-12-13 14:41:29,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72891 states, 72890 states have (on average 1.3460557003704212) internal successors, (98114), 72890 states have internal predecessors, (98114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:41:29,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72891 states to 72891 states and 98114 transitions. [2022-12-13 14:41:29,696 INFO L78 Accepts]: Start accepts. Automaton has 72891 states and 98114 transitions. Word has length 89 [2022-12-13 14:41:29,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:41:29,696 INFO L495 AbstractCegarLoop]: Abstraction has 72891 states and 98114 transitions. [2022-12-13 14:41:29,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:41:29,696 INFO L276 IsEmpty]: Start isEmpty. Operand 72891 states and 98114 transitions. [2022-12-13 14:41:29,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-12-13 14:41:29,699 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:41:29,700 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] [2022-12-13 14:41:29,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-12-13 14:41:29,700 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 14:41:29,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:41:29,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1745220661, now seen corresponding path program 1 times [2022-12-13 14:41:29,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:41:29,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439155996] [2022-12-13 14:41:29,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:41:29,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:41:29,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:41:29,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:41:29,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:41:29,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439155996] [2022-12-13 14:41:29,854 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439155996] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:41:29,854 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:41:29,854 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 14:41:29,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326370678] [2022-12-13 14:41:29,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:41:29,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 14:41:29,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:41:29,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 14:41:29,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 14:41:29,855 INFO L87 Difference]: Start difference. First operand 72891 states and 98114 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:43:30,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:43:30,898 INFO L93 Difference]: Finished difference Result 156441 states and 207391 transitions. [2022-12-13 14:43:30,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 14:43:30,899 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-12-13 14:43:30,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:43:31,122 INFO L225 Difference]: With dead ends: 156441 [2022-12-13 14:43:31,122 INFO L226 Difference]: Without dead ends: 156439 [2022-12-13 14:43:31,154 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 [2022-12-13 14:43:31,154 INFO L413 NwaCegarLoop]: 434 mSDtfsCounter, 443 mSDsluCounter, 1401 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 443 SdHoareTripleChecker+Valid, 1835 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 14:43:31,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [443 Valid, 1835 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 14:43:31,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156439 states. [2022-12-13 14:44:32,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156439 to 79131. [2022-12-13 14:44:32,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79131 states, 79130 states have (on average 1.3187665866295968) internal successors, (104354), 79130 states have internal predecessors, (104354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:44:32,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79131 states to 79131 states and 104354 transitions. [2022-12-13 14:44:32,255 INFO L78 Accepts]: Start accepts. Automaton has 79131 states and 104354 transitions. Word has length 91 [2022-12-13 14:44:32,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:44:32,256 INFO L495 AbstractCegarLoop]: Abstraction has 79131 states and 104354 transitions. [2022-12-13 14:44:32,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:44:32,256 INFO L276 IsEmpty]: Start isEmpty. Operand 79131 states and 104354 transitions. [2022-12-13 14:44:32,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-12-13 14:44:32,260 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:44:32,260 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:44:32,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-12-13 14:44:32,260 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 14:44:32,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:44:32,260 INFO L85 PathProgramCache]: Analyzing trace with hash -1316288567, now seen corresponding path program 1 times [2022-12-13 14:44:32,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:44:32,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352889163] [2022-12-13 14:44:32,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:44:32,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:44:32,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:44:32,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:44:32,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:44:32,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352889163] [2022-12-13 14:44:32,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352889163] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:44:32,298 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:44:32,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 14:44:32,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239905465] [2022-12-13 14:44:32,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:44:32,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:44:32,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:44:32,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:44:32,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:44:32,299 INFO L87 Difference]: Start difference. First operand 79131 states and 104354 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 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)