./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62d6eb1a-3790-4e29-bb11-1afb8defa8b6/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62d6eb1a-3790-4e29-bb11-1afb8defa8b6/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_62d6eb1a-3790-4e29-bb11-1afb8defa8b6/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62d6eb1a-3790-4e29-bb11-1afb8defa8b6/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62d6eb1a-3790-4e29-bb11-1afb8defa8b6/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_62d6eb1a-3790-4e29-bb11-1afb8defa8b6/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 ac65b92526cdafd793de45207c8e0f67883c86dc6af3548ef3333097912e0ee4 --- 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 16:17:38,385 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 16:17:38,387 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 16:17:38,405 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 16:17:38,405 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 16:17:38,406 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 16:17:38,407 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 16:17:38,409 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 16:17:38,410 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 16:17:38,411 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 16:17:38,412 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 16:17:38,413 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 16:17:38,414 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 16:17:38,415 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 16:17:38,416 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 16:17:38,417 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 16:17:38,417 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 16:17:38,418 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 16:17:38,419 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 16:17:38,420 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 16:17:38,421 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 16:17:38,422 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 16:17:38,423 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 16:17:38,423 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 16:17:38,426 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 16:17:38,426 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 16:17:38,426 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 16:17:38,427 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 16:17:38,427 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 16:17:38,428 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 16:17:38,428 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 16:17:38,428 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 16:17:38,429 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 16:17:38,430 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 16:17:38,430 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 16:17:38,430 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 16:17:38,431 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 16:17:38,431 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 16:17:38,431 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 16:17:38,432 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 16:17:38,432 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 16:17:38,433 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62d6eb1a-3790-4e29-bb11-1afb8defa8b6/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 16:17:38,448 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 16:17:38,448 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 16:17:38,449 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 16:17:38,449 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 16:17:38,449 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 16:17:38,449 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 16:17:38,450 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 16:17:38,450 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 16:17:38,450 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 16:17:38,450 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 16:17:38,450 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 16:17:38,451 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 16:17:38,451 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 16:17:38,451 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 16:17:38,451 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 16:17:38,451 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 16:17:38,451 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 16:17:38,452 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 16:17:38,452 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 16:17:38,452 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 16:17:38,452 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 16:17:38,452 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 16:17:38,452 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 16:17:38,453 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 16:17:38,453 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:17:38,453 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 16:17:38,453 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 16:17:38,453 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 16:17:38,453 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 16:17:38,453 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 16:17:38,454 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 16:17:38,454 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 16:17:38,454 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 16:17:38,454 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 16:17:38,454 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 16:17:38,454 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_62d6eb1a-3790-4e29-bb11-1afb8defa8b6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62d6eb1a-3790-4e29-bb11-1afb8defa8b6/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ac65b92526cdafd793de45207c8e0f67883c86dc6af3548ef3333097912e0ee4 [2022-12-13 16:17:38,619 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 16:17:38,636 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 16:17:38,638 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 16:17:38,639 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 16:17:38,640 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 16:17:38,640 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62d6eb1a-3790-4e29-bb11-1afb8defa8b6/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-12-13 16:17:41,124 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 16:17:41,470 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 16:17:41,470 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62d6eb1a-3790-4e29-bb11-1afb8defa8b6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-12-13 16:17:41,505 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62d6eb1a-3790-4e29-bb11-1afb8defa8b6/bin/uautomizer-uyxdKDjOR8/data/86ccbcc2c/c7b18ffcd119485a977c8546da974bf5/FLAG8d96ca14b [2022-12-13 16:17:41,696 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62d6eb1a-3790-4e29-bb11-1afb8defa8b6/bin/uautomizer-uyxdKDjOR8/data/86ccbcc2c/c7b18ffcd119485a977c8546da974bf5 [2022-12-13 16:17:41,698 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 16:17:41,700 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 16:17:41,701 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 16:17:41,701 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 16:17:41,705 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 16:17:41,706 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:17:41" (1/1) ... [2022-12-13 16:17:41,706 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a17b8a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:17:41, skipping insertion in model container [2022-12-13 16:17:41,707 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:17:41" (1/1) ... [2022-12-13 16:17:41,714 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 16:17:41,837 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 16:17:42,093 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_62d6eb1a-3790-4e29-bb11-1afb8defa8b6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[13606,13619] [2022-12-13 16:17:42,118 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_62d6eb1a-3790-4e29-bb11-1afb8defa8b6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[19227,19240] [2022-12-13 16:17:42,124 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_62d6eb1a-3790-4e29-bb11-1afb8defa8b6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[20416,20429] [2022-12-13 16:17:42,133 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_62d6eb1a-3790-4e29-bb11-1afb8defa8b6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[22562,22575] [2022-12-13 16:17:42,147 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_62d6eb1a-3790-4e29-bb11-1afb8defa8b6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[25842,25855] [2022-12-13 16:17:42,171 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_62d6eb1a-3790-4e29-bb11-1afb8defa8b6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[32130,32143] [2022-12-13 16:17:42,566 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:17:42,577 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 16:17:42,622 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_62d6eb1a-3790-4e29-bb11-1afb8defa8b6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[13606,13619] [2022-12-13 16:17:42,633 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_62d6eb1a-3790-4e29-bb11-1afb8defa8b6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[19227,19240] [2022-12-13 16:17:42,636 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_62d6eb1a-3790-4e29-bb11-1afb8defa8b6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[20416,20429] [2022-12-13 16:17:42,642 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_62d6eb1a-3790-4e29-bb11-1afb8defa8b6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[22562,22575] [2022-12-13 16:17:42,650 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_62d6eb1a-3790-4e29-bb11-1afb8defa8b6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[25842,25855] [2022-12-13 16:17:42,665 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_62d6eb1a-3790-4e29-bb11-1afb8defa8b6/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[32130,32143] [2022-12-13 16:17:42,974 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:17:42,990 INFO L208 MainTranslator]: Completed translation [2022-12-13 16:17:42,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:17:42 WrapperNode [2022-12-13 16:17:42,990 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 16:17:42,991 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 16:17:42,991 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 16:17:42,991 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 16:17:42,996 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:17:42" (1/1) ... [2022-12-13 16:17:43,027 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:17:42" (1/1) ... [2022-12-13 16:17:43,096 INFO L138 Inliner]: procedures = 25, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 8789 [2022-12-13 16:17:43,097 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 16:17:43,097 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 16:17:43,097 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 16:17:43,097 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 16:17:43,104 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:17:42" (1/1) ... [2022-12-13 16:17:43,104 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:17:42" (1/1) ... [2022-12-13 16:17:43,114 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:17:42" (1/1) ... [2022-12-13 16:17:43,115 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:17:42" (1/1) ... [2022-12-13 16:17:43,149 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:17:42" (1/1) ... [2022-12-13 16:17:43,196 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:17:42" (1/1) ... [2022-12-13 16:17:43,213 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:17:42" (1/1) ... [2022-12-13 16:17:43,222 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:17:42" (1/1) ... [2022-12-13 16:17:43,247 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 16:17:43,248 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 16:17:43,248 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 16:17:43,248 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 16:17:43,249 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:17:42" (1/1) ... [2022-12-13 16:17:43,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:17:43,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62d6eb1a-3790-4e29-bb11-1afb8defa8b6/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:17:43,276 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62d6eb1a-3790-4e29-bb11-1afb8defa8b6/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 16:17:43,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62d6eb1a-3790-4e29-bb11-1afb8defa8b6/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 16:17:43,309 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 16:17:43,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 16:17:43,309 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 16:17:43,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 16:17:43,562 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 16:17:43,563 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 16:17:46,157 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 16:17:46,177 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 16:17:46,177 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 16:17:46,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:17:46 BoogieIcfgContainer [2022-12-13 16:17:46,181 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 16:17:46,183 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 16:17:46,183 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 16:17:46,186 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 16:17:46,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 04:17:41" (1/3) ... [2022-12-13 16:17:46,187 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@383c7e1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 04:17:46, skipping insertion in model container [2022-12-13 16:17:46,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:17:42" (2/3) ... [2022-12-13 16:17:46,188 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@383c7e1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 04:17:46, skipping insertion in model container [2022-12-13 16:17:46,188 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:17:46" (3/3) ... [2022-12-13 16:17:46,189 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-12-13 16:17:46,205 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 16:17:46,206 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-12-13 16:17:46,275 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 16:17:46,279 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;@40e76fc8, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 16:17:46,279 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-12-13 16:17:46,287 INFO L276 IsEmpty]: Start isEmpty. Operand has 1751 states, 1744 states have (on average 1.8004587155963303) internal successors, (3140), 1750 states have internal predecessors, (3140), 0 states have call successors, (0), 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 16:17:46,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-12-13 16:17:46,305 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:17:46,306 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 16:17:46,306 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-12-13 16:17:46,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:17:46,310 INFO L85 PathProgramCache]: Analyzing trace with hash 1733440182, now seen corresponding path program 1 times [2022-12-13 16:17:46,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:17:46,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094026889] [2022-12-13 16:17:46,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:17:46,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:17:46,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:17:46,666 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 16:17:46,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:17:46,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094026889] [2022-12-13 16:17:46,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094026889] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:17:46,667 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:17:46,668 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 16:17:46,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375440784] [2022-12-13 16:17:46,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:17:46,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 16:17:46,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:17:46,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 16:17:46,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 16:17:46,704 INFO L87 Difference]: Start difference. First operand has 1751 states, 1744 states have (on average 1.8004587155963303) internal successors, (3140), 1750 states have internal predecessors, (3140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 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 16:17:47,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:17:47,043 INFO L93 Difference]: Finished difference Result 2512 states and 4420 transitions. [2022-12-13 16:17:47,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 16:17:47,045 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 16:17:47,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:17:47,063 INFO L225 Difference]: With dead ends: 2512 [2022-12-13 16:17:47,063 INFO L226 Difference]: Without dead ends: 2315 [2022-12-13 16:17:47,066 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 16:17:47,068 INFO L413 NwaCegarLoop]: 3623 mSDtfsCounter, 1878 mSDsluCounter, 2008 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1878 SdHoareTripleChecker+Valid, 5631 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 16:17:47,069 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1878 Valid, 5631 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 16:17:47,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2315 states. [2022-12-13 16:17:47,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2315 to 2305. [2022-12-13 16:17:47,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2305 states, 2299 states have (on average 1.3057851239669422) internal successors, (3002), 2304 states have internal predecessors, (3002), 0 states have call successors, (0), 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 16:17:47,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2305 states to 2305 states and 3002 transitions. [2022-12-13 16:17:47,175 INFO L78 Accepts]: Start accepts. Automaton has 2305 states and 3002 transitions. Word has length 75 [2022-12-13 16:17:47,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:17:47,176 INFO L495 AbstractCegarLoop]: Abstraction has 2305 states and 3002 transitions. [2022-12-13 16:17:47,176 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 16:17:47,176 INFO L276 IsEmpty]: Start isEmpty. Operand 2305 states and 3002 transitions. [2022-12-13 16:17:47,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-12-13 16:17:47,180 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:17:47,180 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 16:17:47,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 16:17:47,180 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-12-13 16:17:47,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:17:47,181 INFO L85 PathProgramCache]: Analyzing trace with hash 992628656, now seen corresponding path program 1 times [2022-12-13 16:17:47,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:17:47,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233920409] [2022-12-13 16:17:47,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:17:47,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:17:47,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:17:47,329 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 16:17:47,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:17:47,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233920409] [2022-12-13 16:17:47,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233920409] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:17:47,330 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:17:47,331 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 16:17:47,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460616631] [2022-12-13 16:17:47,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:17:47,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 16:17:47,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:17:47,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 16:17:47,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 16:17:47,333 INFO L87 Difference]: Start difference. First operand 2305 states and 3002 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 16:17:47,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:17:47,514 INFO L93 Difference]: Finished difference Result 3218 states and 4351 transitions. [2022-12-13 16:17:47,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 16:17:47,515 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 16:17:47,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:17:47,521 INFO L225 Difference]: With dead ends: 3218 [2022-12-13 16:17:47,521 INFO L226 Difference]: Without dead ends: 2759 [2022-12-13 16:17:47,523 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 16:17:47,523 INFO L413 NwaCegarLoop]: 2345 mSDtfsCounter, 1183 mSDsluCounter, 1423 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1183 SdHoareTripleChecker+Valid, 3768 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 16:17:47,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1183 Valid, 3768 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 16:17:47,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2759 states. [2022-12-13 16:17:47,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2759 to 2749. [2022-12-13 16:17:47,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2749 states, 2743 states have (on average 1.3313889901567626) internal successors, (3652), 2748 states have internal predecessors, (3652), 0 states have call successors, (0), 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 16:17:47,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2749 states to 2749 states and 3652 transitions. [2022-12-13 16:17:47,606 INFO L78 Accepts]: Start accepts. Automaton has 2749 states and 3652 transitions. Word has length 75 [2022-12-13 16:17:47,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:17:47,606 INFO L495 AbstractCegarLoop]: Abstraction has 2749 states and 3652 transitions. [2022-12-13 16:17:47,606 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 16:17:47,607 INFO L276 IsEmpty]: Start isEmpty. Operand 2749 states and 3652 transitions. [2022-12-13 16:17:47,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-12-13 16:17:47,610 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:17:47,610 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 16:17:47,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 16:17:47,610 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-12-13 16:17:47,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:17:47,611 INFO L85 PathProgramCache]: Analyzing trace with hash -293589288, now seen corresponding path program 1 times [2022-12-13 16:17:47,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:17:47,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548237206] [2022-12-13 16:17:47,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:17:47,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:17:47,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:17:47,735 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 16:17:47,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:17:47,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548237206] [2022-12-13 16:17:47,736 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548237206] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:17:47,736 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:17:47,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 16:17:47,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722697605] [2022-12-13 16:17:47,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:17:47,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 16:17:47,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:17:47,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 16:17:47,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 16:17:47,738 INFO L87 Difference]: Start difference. First operand 2749 states and 3652 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 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 16:17:48,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:17:48,603 INFO L93 Difference]: Finished difference Result 5032 states and 6903 transitions. [2022-12-13 16:17:48,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 16:17:48,603 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 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 16:17:48,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:17:48,610 INFO L225 Difference]: With dead ends: 5032 [2022-12-13 16:17:48,610 INFO L226 Difference]: Without dead ends: 2885 [2022-12-13 16:17:48,613 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 16:17:48,614 INFO L413 NwaCegarLoop]: 993 mSDtfsCounter, 5807 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 875 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5807 SdHoareTripleChecker+Valid, 1211 SdHoareTripleChecker+Invalid, 887 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 875 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-13 16:17:48,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5807 Valid, 1211 Invalid, 887 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 875 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-13 16:17:48,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2885 states. [2022-12-13 16:17:48,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2885 to 2875. [2022-12-13 16:17:48,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2875 states, 2869 states have (on average 1.3851516207737888) internal successors, (3974), 2874 states have internal predecessors, (3974), 0 states have call successors, (0), 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 16:17:48,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2875 states to 2875 states and 3974 transitions. [2022-12-13 16:17:48,754 INFO L78 Accepts]: Start accepts. Automaton has 2875 states and 3974 transitions. Word has length 75 [2022-12-13 16:17:48,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:17:48,754 INFO L495 AbstractCegarLoop]: Abstraction has 2875 states and 3974 transitions. [2022-12-13 16:17:48,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 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 16:17:48,754 INFO L276 IsEmpty]: Start isEmpty. Operand 2875 states and 3974 transitions. [2022-12-13 16:17:48,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-12-13 16:17:48,757 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:17:48,757 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] [2022-12-13 16:17:48,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 16:17:48,758 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-12-13 16:17:48,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:17:48,758 INFO L85 PathProgramCache]: Analyzing trace with hash -659862233, now seen corresponding path program 1 times [2022-12-13 16:17:48,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:17:48,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151839192] [2022-12-13 16:17:48,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:17:48,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:17:48,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:17:48,901 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 16:17:48,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:17:48,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151839192] [2022-12-13 16:17:48,902 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151839192] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:17:48,902 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:17:48,902 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 16:17:48,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300761714] [2022-12-13 16:17:48,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:17:48,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 16:17:48,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:17:48,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 16:17:48,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 16:17:48,904 INFO L87 Difference]: Start difference. First operand 2875 states and 3974 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 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 16:17:49,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:17:49,601 INFO L93 Difference]: Finished difference Result 6085 states and 8642 transitions. [2022-12-13 16:17:49,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 16:17:49,602 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2022-12-13 16:17:49,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:17:49,614 INFO L225 Difference]: With dead ends: 6085 [2022-12-13 16:17:49,614 INFO L226 Difference]: Without dead ends: 3652 [2022-12-13 16:17:49,617 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 16:17:49,618 INFO L413 NwaCegarLoop]: 775 mSDtfsCounter, 4627 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 712 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4627 SdHoareTripleChecker+Valid, 990 SdHoareTripleChecker+Invalid, 730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 712 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-13 16:17:49,618 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4627 Valid, 990 Invalid, 730 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 712 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-13 16:17:49,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3652 states. [2022-12-13 16:17:49,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3652 to 3642. [2022-12-13 16:17:49,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3642 states, 3636 states have (on average 1.4254675467546756) internal successors, (5183), 3641 states have internal predecessors, (5183), 0 states have call successors, (0), 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 16:17:49,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3642 states to 3642 states and 5183 transitions. [2022-12-13 16:17:49,742 INFO L78 Accepts]: Start accepts. Automaton has 3642 states and 5183 transitions. Word has length 76 [2022-12-13 16:17:49,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:17:49,742 INFO L495 AbstractCegarLoop]: Abstraction has 3642 states and 5183 transitions. [2022-12-13 16:17:49,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 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 16:17:49,742 INFO L276 IsEmpty]: Start isEmpty. Operand 3642 states and 5183 transitions. [2022-12-13 16:17:49,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-12-13 16:17:49,745 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:17:49,745 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] [2022-12-13 16:17:49,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 16:17:49,745 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-12-13 16:17:49,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:17:49,746 INFO L85 PathProgramCache]: Analyzing trace with hash 1653621631, now seen corresponding path program 1 times [2022-12-13 16:17:49,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:17:49,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691521695] [2022-12-13 16:17:49,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:17:49,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:17:49,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:17:49,822 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 16:17:49,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:17:49,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691521695] [2022-12-13 16:17:49,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691521695] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:17:49,823 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:17:49,823 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 16:17:49,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252351656] [2022-12-13 16:17:49,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:17:49,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 16:17:49,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:17:49,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 16:17:49,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 16:17:49,824 INFO L87 Difference]: Start difference. First operand 3642 states and 5183 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 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 16:17:50,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:17:50,052 INFO L93 Difference]: Finished difference Result 7380 states and 10651 transitions. [2022-12-13 16:17:50,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 16:17:50,053 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2022-12-13 16:17:50,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:17:50,063 INFO L225 Difference]: With dead ends: 7380 [2022-12-13 16:17:50,063 INFO L226 Difference]: Without dead ends: 5163 [2022-12-13 16:17:50,067 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 16:17:50,067 INFO L413 NwaCegarLoop]: 1762 mSDtfsCounter, 1094 mSDsluCounter, 940 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1094 SdHoareTripleChecker+Valid, 2702 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 16:17:50,067 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1094 Valid, 2702 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 16:17:50,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5163 states. [2022-12-13 16:17:50,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5163 to 5145. [2022-12-13 16:17:50,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5145 states, 5139 states have (on average 1.4135045728741) internal successors, (7264), 5144 states have internal predecessors, (7264), 0 states have call successors, (0), 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 16:17:50,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5145 states to 5145 states and 7264 transitions. [2022-12-13 16:17:50,305 INFO L78 Accepts]: Start accepts. Automaton has 5145 states and 7264 transitions. Word has length 77 [2022-12-13 16:17:50,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:17:50,305 INFO L495 AbstractCegarLoop]: Abstraction has 5145 states and 7264 transitions. [2022-12-13 16:17:50,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 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 16:17:50,305 INFO L276 IsEmpty]: Start isEmpty. Operand 5145 states and 7264 transitions. [2022-12-13 16:17:50,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-12-13 16:17:50,309 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:17:50,310 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] [2022-12-13 16:17:50,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 16:17:50,310 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-12-13 16:17:50,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:17:50,310 INFO L85 PathProgramCache]: Analyzing trace with hash 1766360593, now seen corresponding path program 1 times [2022-12-13 16:17:50,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:17:50,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017823527] [2022-12-13 16:17:50,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:17:50,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:17:50,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:17:50,362 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 16:17:50,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:17:50,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017823527] [2022-12-13 16:17:50,362 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017823527] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:17:50,362 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:17:50,362 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 16:17:50,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301803817] [2022-12-13 16:17:50,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:17:50,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 16:17:50,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:17:50,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 16:17:50,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 16:17:50,363 INFO L87 Difference]: Start difference. First operand 5145 states and 7264 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 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 16:17:50,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:17:50,627 INFO L93 Difference]: Finished difference Result 10416 states and 14895 transitions. [2022-12-13 16:17:50,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 16:17:50,628 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2022-12-13 16:17:50,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:17:50,640 INFO L225 Difference]: With dead ends: 10416 [2022-12-13 16:17:50,640 INFO L226 Difference]: Without dead ends: 7235 [2022-12-13 16:17:50,644 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 16:17:50,644 INFO L413 NwaCegarLoop]: 1775 mSDtfsCounter, 1112 mSDsluCounter, 935 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1112 SdHoareTripleChecker+Valid, 2710 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 16:17:50,644 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1112 Valid, 2710 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 16:17:50,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7235 states. [2022-12-13 16:17:50,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7235 to 7213. [2022-12-13 16:17:50,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7213 states, 7207 states have (on average 1.4014152906896074) internal successors, (10100), 7212 states have internal predecessors, (10100), 0 states have call successors, (0), 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 16:17:50,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7213 states to 7213 states and 10100 transitions. [2022-12-13 16:17:50,958 INFO L78 Accepts]: Start accepts. Automaton has 7213 states and 10100 transitions. Word has length 77 [2022-12-13 16:17:50,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:17:50,958 INFO L495 AbstractCegarLoop]: Abstraction has 7213 states and 10100 transitions. [2022-12-13 16:17:50,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 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 16:17:50,959 INFO L276 IsEmpty]: Start isEmpty. Operand 7213 states and 10100 transitions. [2022-12-13 16:17:50,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-12-13 16:17:50,967 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:17:50,967 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] [2022-12-13 16:17:50,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 16:17:50,967 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-12-13 16:17:50,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:17:50,968 INFO L85 PathProgramCache]: Analyzing trace with hash -775572248, now seen corresponding path program 1 times [2022-12-13 16:17:50,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:17:50,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787513387] [2022-12-13 16:17:50,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:17:50,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:17:50,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:17:51,041 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 16:17:51,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:17:51,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787513387] [2022-12-13 16:17:51,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787513387] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:17:51,042 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:17:51,042 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 16:17:51,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290354945] [2022-12-13 16:17:51,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:17:51,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 16:17:51,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:17:51,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 16:17:51,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 16:17:51,043 INFO L87 Difference]: Start difference. First operand 7213 states and 10100 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 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 16:17:51,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:17:51,520 INFO L93 Difference]: Finished difference Result 16568 states and 23715 transitions. [2022-12-13 16:17:51,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 16:17:51,532 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2022-12-13 16:17:51,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:17:51,549 INFO L225 Difference]: With dead ends: 16568 [2022-12-13 16:17:51,550 INFO L226 Difference]: Without dead ends: 11139 [2022-12-13 16:17:51,553 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 16:17:51,554 INFO L413 NwaCegarLoop]: 1384 mSDtfsCounter, 716 mSDsluCounter, 946 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 716 SdHoareTripleChecker+Valid, 2330 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 16:17:51,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [716 Valid, 2330 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 16:17:51,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11139 states. [2022-12-13 16:17:52,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11139 to 11129. [2022-12-13 16:17:52,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11129 states, 11123 states have (on average 1.4129281668614582) internal successors, (15716), 11128 states have internal predecessors, (15716), 0 states have call successors, (0), 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 16:17:52,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11129 states to 11129 states and 15716 transitions. [2022-12-13 16:17:52,118 INFO L78 Accepts]: Start accepts. Automaton has 11129 states and 15716 transitions. Word has length 77 [2022-12-13 16:17:52,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:17:52,118 INFO L495 AbstractCegarLoop]: Abstraction has 11129 states and 15716 transitions. [2022-12-13 16:17:52,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 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 16:17:52,118 INFO L276 IsEmpty]: Start isEmpty. Operand 11129 states and 15716 transitions. [2022-12-13 16:17:52,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-12-13 16:17:52,123 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:17:52,123 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] [2022-12-13 16:17:52,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 16:17:52,123 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-12-13 16:17:52,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:17:52,124 INFO L85 PathProgramCache]: Analyzing trace with hash 1793167006, now seen corresponding path program 1 times [2022-12-13 16:17:52,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:17:52,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251810170] [2022-12-13 16:17:52,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:17:52,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:17:52,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:17:52,212 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 16:17:52,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:17:52,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251810170] [2022-12-13 16:17:52,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251810170] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:17:52,213 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:17:52,213 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 16:17:52,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491815097] [2022-12-13 16:17:52,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:17:52,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 16:17:52,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:17:52,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 16:17:52,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 16:17:52,214 INFO L87 Difference]: Start difference. First operand 11129 states and 15716 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 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 16:17:53,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:17:53,387 INFO L93 Difference]: Finished difference Result 24320 states and 34641 transitions. [2022-12-13 16:17:53,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 16:17:53,388 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2022-12-13 16:17:53,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:17:53,407 INFO L225 Difference]: With dead ends: 24320 [2022-12-13 16:17:53,407 INFO L226 Difference]: Without dead ends: 14157 [2022-12-13 16:17:53,414 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-13 16:17:53,414 INFO L413 NwaCegarLoop]: 666 mSDtfsCounter, 3965 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 621 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3965 SdHoareTripleChecker+Valid, 861 SdHoareTripleChecker+Invalid, 650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 621 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-13 16:17:53,414 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3965 Valid, 861 Invalid, 650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 621 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-13 16:17:53,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14157 states. [2022-12-13 16:17:54,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14157 to 14111. [2022-12-13 16:17:54,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14111 states, 14105 states have (on average 1.4162353775257002) internal successors, (19976), 14110 states have internal predecessors, (19976), 0 states have call successors, (0), 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 16:17:54,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14111 states to 14111 states and 19976 transitions. [2022-12-13 16:17:54,251 INFO L78 Accepts]: Start accepts. Automaton has 14111 states and 19976 transitions. Word has length 77 [2022-12-13 16:17:54,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:17:54,251 INFO L495 AbstractCegarLoop]: Abstraction has 14111 states and 19976 transitions. [2022-12-13 16:17:54,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 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 16:17:54,252 INFO L276 IsEmpty]: Start isEmpty. Operand 14111 states and 19976 transitions. [2022-12-13 16:17:54,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-12-13 16:17:54,257 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:17:54,257 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:17:54,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 16:17:54,257 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-12-13 16:17:54,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:17:54,257 INFO L85 PathProgramCache]: Analyzing trace with hash 384616632, now seen corresponding path program 1 times [2022-12-13 16:17:54,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:17:54,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823145543] [2022-12-13 16:17:54,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:17:54,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:17:54,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:17:54,364 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 16:17:54,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:17:54,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823145543] [2022-12-13 16:17:54,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823145543] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:17:54,364 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:17:54,365 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 16:17:54,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074389172] [2022-12-13 16:17:54,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:17:54,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 16:17:54,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:17:54,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 16:17:54,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 16:17:54,366 INFO L87 Difference]: Start difference. First operand 14111 states and 19976 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 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 16:17:58,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:17:58,522 INFO L93 Difference]: Finished difference Result 49980 states and 72255 transitions. [2022-12-13 16:17:58,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 16:17:58,523 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2022-12-13 16:17:58,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:17:58,582 INFO L225 Difference]: With dead ends: 49980 [2022-12-13 16:17:58,582 INFO L226 Difference]: Without dead ends: 45636 [2022-12-13 16:17:58,591 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 16:17:58,592 INFO L413 NwaCegarLoop]: 704 mSDtfsCounter, 7618 mSDsluCounter, 1070 mSDsCounter, 0 mSdLazyCounter, 1272 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7618 SdHoareTripleChecker+Valid, 1774 SdHoareTripleChecker+Invalid, 1414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 1272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-13 16:17:58,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7618 Valid, 1774 Invalid, 1414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 1272 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-13 16:17:58,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45636 states. [2022-12-13 16:18:00,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45636 to 14159. [2022-12-13 16:18:00,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14159 states, 14153 states have (on average 1.4159542146541368) internal successors, (20040), 14158 states have internal predecessors, (20040), 0 states have call successors, (0), 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 16:18:00,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14159 states to 14159 states and 20040 transitions. [2022-12-13 16:18:00,053 INFO L78 Accepts]: Start accepts. Automaton has 14159 states and 20040 transitions. Word has length 78 [2022-12-13 16:18:00,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:18:00,053 INFO L495 AbstractCegarLoop]: Abstraction has 14159 states and 20040 transitions. [2022-12-13 16:18:00,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 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 16:18:00,053 INFO L276 IsEmpty]: Start isEmpty. Operand 14159 states and 20040 transitions. [2022-12-13 16:18:00,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-12-13 16:18:00,058 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:18:00,058 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] [2022-12-13 16:18:00,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 16:18:00,058 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-12-13 16:18:00,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:18:00,058 INFO L85 PathProgramCache]: Analyzing trace with hash -448054908, now seen corresponding path program 1 times [2022-12-13 16:18:00,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:18:00,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527039348] [2022-12-13 16:18:00,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:18:00,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:18:00,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:18:00,158 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 16:18:00,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:18:00,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527039348] [2022-12-13 16:18:00,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527039348] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:18:00,159 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:18:00,159 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 16:18:00,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21337254] [2022-12-13 16:18:00,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:18:00,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 16:18:00,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:18:00,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 16:18:00,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 16:18:00,160 INFO L87 Difference]: Start difference. First operand 14159 states and 20040 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 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 16:18:06,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:18:06,808 INFO L93 Difference]: Finished difference Result 58023 states and 84035 transitions. [2022-12-13 16:18:06,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 16:18:06,809 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2022-12-13 16:18:06,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:18:06,873 INFO L225 Difference]: With dead ends: 58023 [2022-12-13 16:18:06,873 INFO L226 Difference]: Without dead ends: 52403 [2022-12-13 16:18:06,886 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 16:18:06,887 INFO L413 NwaCegarLoop]: 701 mSDtfsCounter, 7045 mSDsluCounter, 1050 mSDsCounter, 0 mSdLazyCounter, 1297 mSolverCounterSat, 139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7045 SdHoareTripleChecker+Valid, 1751 SdHoareTripleChecker+Invalid, 1436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 139 IncrementalHoareTripleChecker+Valid, 1297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-13 16:18:06,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7045 Valid, 1751 Invalid, 1436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [139 Valid, 1297 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-13 16:18:06,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52403 states. [2022-12-13 16:18:08,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52403 to 14339. [2022-12-13 16:18:08,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14339 states, 14333 states have (on average 1.4149166259680457) internal successors, (20280), 14338 states have internal predecessors, (20280), 0 states have call successors, (0), 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 16:18:08,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14339 states to 14339 states and 20280 transitions. [2022-12-13 16:18:08,514 INFO L78 Accepts]: Start accepts. Automaton has 14339 states and 20280 transitions. Word has length 78 [2022-12-13 16:18:08,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:18:08,515 INFO L495 AbstractCegarLoop]: Abstraction has 14339 states and 20280 transitions. [2022-12-13 16:18:08,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 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 16:18:08,515 INFO L276 IsEmpty]: Start isEmpty. Operand 14339 states and 20280 transitions. [2022-12-13 16:18:08,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-12-13 16:18:08,520 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:18:08,520 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] [2022-12-13 16:18:08,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 16:18:08,520 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-12-13 16:18:08,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:18:08,520 INFO L85 PathProgramCache]: Analyzing trace with hash -1302867127, now seen corresponding path program 1 times [2022-12-13 16:18:08,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:18:08,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768735165] [2022-12-13 16:18:08,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:18:08,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:18:08,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:18:08,624 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 16:18:08,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:18:08,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768735165] [2022-12-13 16:18:08,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768735165] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:18:08,625 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:18:08,625 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 16:18:08,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744086691] [2022-12-13 16:18:08,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:18:08,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 16:18:08,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:18:08,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 16:18:08,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 16:18:08,626 INFO L87 Difference]: Start difference. First operand 14339 states and 20280 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 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 16:18:16,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:18:16,176 INFO L93 Difference]: Finished difference Result 52723 states and 76327 transitions. [2022-12-13 16:18:16,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 16:18:16,177 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2022-12-13 16:18:16,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:18:16,229 INFO L225 Difference]: With dead ends: 52723 [2022-12-13 16:18:16,229 INFO L226 Difference]: Without dead ends: 47389 [2022-12-13 16:18:16,241 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 16:18:16,241 INFO L413 NwaCegarLoop]: 692 mSDtfsCounter, 6652 mSDsluCounter, 1038 mSDsCounter, 0 mSdLazyCounter, 1326 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6652 SdHoareTripleChecker+Valid, 1730 SdHoareTripleChecker+Invalid, 1467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 1326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-13 16:18:16,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6652 Valid, 1730 Invalid, 1467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [141 Valid, 1326 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-13 16:18:16,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47389 states. [2022-12-13 16:18:18,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47389 to 14639. [2022-12-13 16:18:18,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14639 states, 14633 states have (on average 1.413517392195722) internal successors, (20684), 14638 states have internal predecessors, (20684), 0 states have call successors, (0), 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 16:18:18,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14639 states to 14639 states and 20684 transitions. [2022-12-13 16:18:18,080 INFO L78 Accepts]: Start accepts. Automaton has 14639 states and 20684 transitions. Word has length 78 [2022-12-13 16:18:18,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:18:18,080 INFO L495 AbstractCegarLoop]: Abstraction has 14639 states and 20684 transitions. [2022-12-13 16:18:18,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 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 16:18:18,080 INFO L276 IsEmpty]: Start isEmpty. Operand 14639 states and 20684 transitions. [2022-12-13 16:18:18,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-12-13 16:18:18,086 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:18:18,086 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] [2022-12-13 16:18:18,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 16:18:18,086 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-12-13 16:18:18,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:18:18,086 INFO L85 PathProgramCache]: Analyzing trace with hash -2082723386, now seen corresponding path program 1 times [2022-12-13 16:18:18,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:18:18,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698355279] [2022-12-13 16:18:18,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:18:18,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:18:18,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:18:18,269 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 16:18:18,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:18:18,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698355279] [2022-12-13 16:18:18,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698355279] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:18:18,270 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:18:18,270 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 16:18:18,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666913018] [2022-12-13 16:18:18,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:18:18,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 16:18:18,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:18:18,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 16:18:18,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 16:18:18,271 INFO L87 Difference]: Start difference. First operand 14639 states and 20684 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 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 16:18:21,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:18:21,063 INFO L93 Difference]: Finished difference Result 21931 states and 31485 transitions. [2022-12-13 16:18:21,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 16:18:21,064 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 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 79 [2022-12-13 16:18:21,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:18:21,083 INFO L225 Difference]: With dead ends: 21931 [2022-12-13 16:18:21,083 INFO L226 Difference]: Without dead ends: 21929 [2022-12-13 16:18:21,086 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 16:18:21,087 INFO L413 NwaCegarLoop]: 1326 mSDtfsCounter, 150 mSDsluCounter, 2499 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 3825 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 16:18:21,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 3825 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 16:18:21,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21929 states. [2022-12-13 16:18:22,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21929 to 14637. [2022-12-13 16:18:22,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14637 states, 14632 states have (on average 1.411085292509568) internal successors, (20647), 14636 states have internal predecessors, (20647), 0 states have call successors, (0), 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 16:18:22,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14637 states to 14637 states and 20647 transitions. [2022-12-13 16:18:22,838 INFO L78 Accepts]: Start accepts. Automaton has 14637 states and 20647 transitions. Word has length 79 [2022-12-13 16:18:22,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:18:22,838 INFO L495 AbstractCegarLoop]: Abstraction has 14637 states and 20647 transitions. [2022-12-13 16:18:22,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 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 16:18:22,839 INFO L276 IsEmpty]: Start isEmpty. Operand 14637 states and 20647 transitions. [2022-12-13 16:18:22,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-12-13 16:18:22,844 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:18:22,844 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] [2022-12-13 16:18:22,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 16:18:22,844 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-12-13 16:18:22,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:18:22,845 INFO L85 PathProgramCache]: Analyzing trace with hash -554526117, now seen corresponding path program 1 times [2022-12-13 16:18:22,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:18:22,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014051263] [2022-12-13 16:18:22,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:18:22,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:18:22,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:18:22,986 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 16:18:22,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:18:22,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014051263] [2022-12-13 16:18:22,986 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014051263] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:18:22,986 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:18:22,986 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 16:18:22,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123719210] [2022-12-13 16:18:22,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:18:22,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 16:18:22,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:18:22,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 16:18:22,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 16:18:22,988 INFO L87 Difference]: Start difference. First operand 14637 states and 20647 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 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 16:18:25,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:18:25,913 INFO L93 Difference]: Finished difference Result 21929 states and 31448 transitions. [2022-12-13 16:18:25,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 16:18:25,914 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 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 79 [2022-12-13 16:18:25,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:18:25,933 INFO L225 Difference]: With dead ends: 21929 [2022-12-13 16:18:25,933 INFO L226 Difference]: Without dead ends: 21927 [2022-12-13 16:18:25,937 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 16:18:25,937 INFO L413 NwaCegarLoop]: 1324 mSDtfsCounter, 150 mSDsluCounter, 2495 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 3819 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 16:18:25,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 3819 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 16:18:25,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21927 states. [2022-12-13 16:18:27,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21927 to 14635. [2022-12-13 16:18:27,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14635 states, 14631 states have (on average 1.4086528603649784) internal successors, (20610), 14634 states have internal predecessors, (20610), 0 states have call successors, (0), 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 16:18:27,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14635 states to 14635 states and 20610 transitions. [2022-12-13 16:18:27,803 INFO L78 Accepts]: Start accepts. Automaton has 14635 states and 20610 transitions. Word has length 79 [2022-12-13 16:18:27,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:18:27,803 INFO L495 AbstractCegarLoop]: Abstraction has 14635 states and 20610 transitions. [2022-12-13 16:18:27,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 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 16:18:27,804 INFO L276 IsEmpty]: Start isEmpty. Operand 14635 states and 20610 transitions. [2022-12-13 16:18:27,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-12-13 16:18:27,809 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:18:27,809 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] [2022-12-13 16:18:27,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-13 16:18:27,809 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-12-13 16:18:27,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:18:27,810 INFO L85 PathProgramCache]: Analyzing trace with hash -2114012911, now seen corresponding path program 1 times [2022-12-13 16:18:27,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:18:27,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816699177] [2022-12-13 16:18:27,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:18:27,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:18:27,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:18:27,878 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 16:18:27,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:18:27,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816699177] [2022-12-13 16:18:27,879 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816699177] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:18:27,879 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:18:27,879 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 16:18:27,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594207279] [2022-12-13 16:18:27,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:18:27,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 16:18:27,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:18:27,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 16:18:27,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 16:18:27,880 INFO L87 Difference]: Start difference. First operand 14635 states and 20610 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 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 16:18:31,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:18:31,124 INFO L93 Difference]: Finished difference Result 32708 states and 46104 transitions. [2022-12-13 16:18:31,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 16:18:31,125 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 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 79 [2022-12-13 16:18:31,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:18:31,143 INFO L225 Difference]: With dead ends: 32708 [2022-12-13 16:18:31,143 INFO L226 Difference]: Without dead ends: 18877 [2022-12-13 16:18:31,153 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 16:18:31,153 INFO L413 NwaCegarLoop]: 620 mSDtfsCounter, 3599 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 591 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3599 SdHoareTripleChecker+Valid, 770 SdHoareTripleChecker+Invalid, 659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-13 16:18:31,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3599 Valid, 770 Invalid, 659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 591 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-13 16:18:31,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18877 states. [2022-12-13 16:18:33,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18877 to 18817. [2022-12-13 16:18:33,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18817 states, 18813 states have (on average 1.3977037155158667) internal successors, (26295), 18816 states have internal predecessors, (26295), 0 states have call successors, (0), 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 16:18:33,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18817 states to 18817 states and 26295 transitions. [2022-12-13 16:18:33,830 INFO L78 Accepts]: Start accepts. Automaton has 18817 states and 26295 transitions. Word has length 79 [2022-12-13 16:18:33,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:18:33,830 INFO L495 AbstractCegarLoop]: Abstraction has 18817 states and 26295 transitions. [2022-12-13 16:18:33,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 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 16:18:33,830 INFO L276 IsEmpty]: Start isEmpty. Operand 18817 states and 26295 transitions. [2022-12-13 16:18:33,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-12-13 16:18:33,836 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:18:33,837 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] [2022-12-13 16:18:33,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-13 16:18:33,837 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-12-13 16:18:33,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:18:33,837 INFO L85 PathProgramCache]: Analyzing trace with hash -1892443340, now seen corresponding path program 1 times [2022-12-13 16:18:33,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:18:33,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439714187] [2022-12-13 16:18:33,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:18:33,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:18:33,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:18:33,904 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 16:18:33,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:18:33,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439714187] [2022-12-13 16:18:33,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439714187] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:18:33,905 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:18:33,905 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 16:18:33,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884447704] [2022-12-13 16:18:33,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:18:33,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 16:18:33,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:18:33,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 16:18:33,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 16:18:33,906 INFO L87 Difference]: Start difference. First operand 18817 states and 26295 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 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 16:18:38,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:18:38,535 INFO L93 Difference]: Finished difference Result 43750 states and 61399 transitions. [2022-12-13 16:18:38,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 16:18:38,535 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 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 79 [2022-12-13 16:18:38,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:18:38,560 INFO L225 Difference]: With dead ends: 43750 [2022-12-13 16:18:38,560 INFO L226 Difference]: Without dead ends: 25804 [2022-12-13 16:18:38,571 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 16:18:38,571 INFO L413 NwaCegarLoop]: 694 mSDtfsCounter, 3975 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 555 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3975 SdHoareTripleChecker+Valid, 904 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-13 16:18:38,572 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3975 Valid, 904 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 555 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-13 16:18:38,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25804 states. [2022-12-13 16:18:41,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25804 to 18817. [2022-12-13 16:18:41,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18817 states, 18813 states have (on average 1.3933450273746877) internal successors, (26213), 18816 states have internal predecessors, (26213), 0 states have call successors, (0), 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 16:18:41,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18817 states to 18817 states and 26213 transitions. [2022-12-13 16:18:41,442 INFO L78 Accepts]: Start accepts. Automaton has 18817 states and 26213 transitions. Word has length 79 [2022-12-13 16:18:41,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:18:41,442 INFO L495 AbstractCegarLoop]: Abstraction has 18817 states and 26213 transitions. [2022-12-13 16:18:41,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 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 16:18:41,442 INFO L276 IsEmpty]: Start isEmpty. Operand 18817 states and 26213 transitions. [2022-12-13 16:18:41,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-12-13 16:18:41,447 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:18:41,447 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:18:41,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-13 16:18:41,448 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-12-13 16:18:41,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:18:41,448 INFO L85 PathProgramCache]: Analyzing trace with hash -1137442928, now seen corresponding path program 1 times [2022-12-13 16:18:41,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:18:41,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917105820] [2022-12-13 16:18:41,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:18:41,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:18:41,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:18:41,539 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 16:18:41,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:18:41,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917105820] [2022-12-13 16:18:41,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917105820] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:18:41,539 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:18:41,539 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 16:18:41,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974421737] [2022-12-13 16:18:41,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:18:41,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 16:18:41,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:18:41,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 16:18:41,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 16:18:41,541 INFO L87 Difference]: Start difference. First operand 18817 states and 26213 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 6 states have internal predecessors, (80), 0 states have call successors, (0), 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 16:18:54,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:18:54,809 INFO L93 Difference]: Finished difference Result 67289 states and 95635 transitions. [2022-12-13 16:18:54,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 16:18:54,810 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 6 states have internal predecessors, (80), 0 states have call successors, (0), 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 80 [2022-12-13 16:18:54,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:18:54,879 INFO L225 Difference]: With dead ends: 67289 [2022-12-13 16:18:54,879 INFO L226 Difference]: Without dead ends: 59815 [2022-12-13 16:18:54,893 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 16:18:54,894 INFO L413 NwaCegarLoop]: 635 mSDtfsCounter, 6065 mSDsluCounter, 1060 mSDsCounter, 0 mSdLazyCounter, 1355 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6065 SdHoareTripleChecker+Valid, 1695 SdHoareTripleChecker+Invalid, 1492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 1355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-13 16:18:54,894 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6065 Valid, 1695 Invalid, 1492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 1355 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-13 16:18:54,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59815 states. [2022-12-13 16:18:58,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59815 to 19324. [2022-12-13 16:18:58,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19324 states, 19320 states have (on average 1.392287784679089) internal successors, (26899), 19323 states have internal predecessors, (26899), 0 states have call successors, (0), 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 16:18:58,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19324 states to 19324 states and 26899 transitions. [2022-12-13 16:18:58,603 INFO L78 Accepts]: Start accepts. Automaton has 19324 states and 26899 transitions. Word has length 80 [2022-12-13 16:18:58,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:18:58,604 INFO L495 AbstractCegarLoop]: Abstraction has 19324 states and 26899 transitions. [2022-12-13 16:18:58,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 6 states have internal predecessors, (80), 0 states have call successors, (0), 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 16:18:58,604 INFO L276 IsEmpty]: Start isEmpty. Operand 19324 states and 26899 transitions. [2022-12-13 16:18:58,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-12-13 16:18:58,609 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:18:58,610 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] [2022-12-13 16:18:58,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-13 16:18:58,610 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-12-13 16:18:58,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:18:58,610 INFO L85 PathProgramCache]: Analyzing trace with hash -1407167192, now seen corresponding path program 1 times [2022-12-13 16:18:58,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:18:58,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234478924] [2022-12-13 16:18:58,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:18:58,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:18:58,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:18:58,735 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 16:18:58,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:18:58,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234478924] [2022-12-13 16:18:58,736 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234478924] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:18:58,736 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:18:58,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 16:18:58,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179629064] [2022-12-13 16:18:58,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:18:58,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 16:18:58,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:18:58,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 16:18:58,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 16:18:58,737 INFO L87 Difference]: Start difference. First operand 19324 states and 26899 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 6 states have internal predecessors, (80), 0 states have call successors, (0), 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 16:19:12,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:19:12,596 INFO L93 Difference]: Finished difference Result 65475 states and 92497 transitions. [2022-12-13 16:19:12,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 16:19:12,597 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 6 states have internal predecessors, (80), 0 states have call successors, (0), 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 80 [2022-12-13 16:19:12,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:19:12,661 INFO L225 Difference]: With dead ends: 65475 [2022-12-13 16:19:12,661 INFO L226 Difference]: Without dead ends: 56333 [2022-12-13 16:19:12,675 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 16:19:12,676 INFO L413 NwaCegarLoop]: 706 mSDtfsCounter, 6282 mSDsluCounter, 988 mSDsCounter, 0 mSdLazyCounter, 1075 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6282 SdHoareTripleChecker+Valid, 1694 SdHoareTripleChecker+Invalid, 1215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 1075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-13 16:19:12,676 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6282 Valid, 1694 Invalid, 1215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 1075 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-13 16:19:12,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56333 states. [2022-12-13 16:19:16,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56333 to 19408. [2022-12-13 16:19:16,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19408 states, 19404 states have (on average 1.3918264275407133) internal successors, (27007), 19407 states have internal predecessors, (27007), 0 states have call successors, (0), 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 16:19:16,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19408 states to 19408 states and 27007 transitions. [2022-12-13 16:19:16,692 INFO L78 Accepts]: Start accepts. Automaton has 19408 states and 27007 transitions. Word has length 80 [2022-12-13 16:19:16,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:19:16,693 INFO L495 AbstractCegarLoop]: Abstraction has 19408 states and 27007 transitions. [2022-12-13 16:19:16,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 6 states have internal predecessors, (80), 0 states have call successors, (0), 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 16:19:16,693 INFO L276 IsEmpty]: Start isEmpty. Operand 19408 states and 27007 transitions. [2022-12-13 16:19:16,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-12-13 16:19:16,699 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:19:16,699 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] [2022-12-13 16:19:16,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-13 16:19:16,699 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-12-13 16:19:16,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:19:16,699 INFO L85 PathProgramCache]: Analyzing trace with hash 1477869642, now seen corresponding path program 1 times [2022-12-13 16:19:16,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:19:16,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133625744] [2022-12-13 16:19:16,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:19:16,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:19:16,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:19:16,824 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 16:19:16,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:19:16,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133625744] [2022-12-13 16:19:16,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133625744] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:19:16,825 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:19:16,825 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 16:19:16,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791533424] [2022-12-13 16:19:16,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:19:16,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 16:19:16,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:19:16,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 16:19:16,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 16:19:16,826 INFO L87 Difference]: Start difference. First operand 19408 states and 27007 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 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 16:19:23,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:19:23,439 INFO L93 Difference]: Finished difference Result 30264 states and 42857 transitions. [2022-12-13 16:19:23,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 16:19:23,440 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2022-12-13 16:19:23,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:19:23,468 INFO L225 Difference]: With dead ends: 30264 [2022-12-13 16:19:23,468 INFO L226 Difference]: Without dead ends: 30262 [2022-12-13 16:19:23,473 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 16:19:23,473 INFO L413 NwaCegarLoop]: 1269 mSDtfsCounter, 148 mSDsluCounter, 2387 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 3656 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 16:19:23,473 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 3656 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 16:19:23,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30262 states. [2022-12-13 16:19:27,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30262 to 19406. [2022-12-13 16:19:27,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19406 states, 19403 states have (on average 1.3890635468741948) internal successors, (26952), 19405 states have internal predecessors, (26952), 0 states have call successors, (0), 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 16:19:27,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19406 states to 19406 states and 26952 transitions. [2022-12-13 16:19:27,387 INFO L78 Accepts]: Start accepts. Automaton has 19406 states and 26952 transitions. Word has length 81 [2022-12-13 16:19:27,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:19:27,387 INFO L495 AbstractCegarLoop]: Abstraction has 19406 states and 26952 transitions. [2022-12-13 16:19:27,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 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 16:19:27,387 INFO L276 IsEmpty]: Start isEmpty. Operand 19406 states and 26952 transitions. [2022-12-13 16:19:27,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-12-13 16:19:27,395 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:19:27,395 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] [2022-12-13 16:19:27,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-13 16:19:27,395 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-12-13 16:19:27,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:19:27,395 INFO L85 PathProgramCache]: Analyzing trace with hash -918459322, now seen corresponding path program 1 times [2022-12-13 16:19:27,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:19:27,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408380682] [2022-12-13 16:19:27,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:19:27,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:19:27,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:19:27,522 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 16:19:27,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:19:27,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408380682] [2022-12-13 16:19:27,522 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408380682] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:19:27,522 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:19:27,522 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 16:19:27,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693109202] [2022-12-13 16:19:27,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:19:27,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 16:19:27,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:19:27,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 16:19:27,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 16:19:27,523 INFO L87 Difference]: Start difference. First operand 19406 states and 26952 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 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 16:19:34,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:19:34,471 INFO L93 Difference]: Finished difference Result 30262 states and 42802 transitions. [2022-12-13 16:19:34,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 16:19:34,471 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2022-12-13 16:19:34,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:19:34,500 INFO L225 Difference]: With dead ends: 30262 [2022-12-13 16:19:34,500 INFO L226 Difference]: Without dead ends: 30260 [2022-12-13 16:19:34,504 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 16:19:34,505 INFO L413 NwaCegarLoop]: 1267 mSDtfsCounter, 148 mSDsluCounter, 2383 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 3650 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 16:19:34,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 3650 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 16:19:34,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30260 states. [2022-12-13 16:19:38,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30260 to 19404. [2022-12-13 16:19:38,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19404 states, 19402 states have (on average 1.386300381403979) internal successors, (26897), 19403 states have internal predecessors, (26897), 0 states have call successors, (0), 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 16:19:38,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19404 states to 19404 states and 26897 transitions. [2022-12-13 16:19:38,558 INFO L78 Accepts]: Start accepts. Automaton has 19404 states and 26897 transitions. Word has length 81 [2022-12-13 16:19:38,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:19:38,558 INFO L495 AbstractCegarLoop]: Abstraction has 19404 states and 26897 transitions. [2022-12-13 16:19:38,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 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 16:19:38,558 INFO L276 IsEmpty]: Start isEmpty. Operand 19404 states and 26897 transitions. [2022-12-13 16:19:38,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-12-13 16:19:38,565 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:19:38,565 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] [2022-12-13 16:19:38,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-13 16:19:38,565 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-12-13 16:19:38,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:19:38,565 INFO L85 PathProgramCache]: Analyzing trace with hash 433406996, now seen corresponding path program 1 times [2022-12-13 16:19:38,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:19:38,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486354289] [2022-12-13 16:19:38,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:19:38,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:19:38,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:19:38,761 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 16:19:38,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:19:38,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486354289] [2022-12-13 16:19:38,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486354289] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:19:38,761 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:19:38,761 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 16:19:38,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565963686] [2022-12-13 16:19:38,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:19:38,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 16:19:38,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:19:38,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 16:19:38,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 16:19:38,763 INFO L87 Difference]: Start difference. First operand 19404 states and 26897 transitions. Second operand has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 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 16:19:53,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:19:53,072 INFO L93 Difference]: Finished difference Result 57777 states and 82224 transitions. [2022-12-13 16:19:53,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 16:19:53,072 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2022-12-13 16:19:53,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:19:53,119 INFO L225 Difference]: With dead ends: 57777 [2022-12-13 16:19:53,119 INFO L226 Difference]: Without dead ends: 46921 [2022-12-13 16:19:53,131 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-12-13 16:19:53,132 INFO L413 NwaCegarLoop]: 793 mSDtfsCounter, 5378 mSDsluCounter, 2876 mSDsCounter, 0 mSdLazyCounter, 2810 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5378 SdHoareTripleChecker+Valid, 3669 SdHoareTripleChecker+Invalid, 2841 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 2810 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-13 16:19:53,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5378 Valid, 3669 Invalid, 2841 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 2810 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-13 16:19:53,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46921 states. [2022-12-13 16:19:57,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46921 to 19404. [2022-12-13 16:19:57,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19404 states, 19402 states have (on average 1.3856818884651068) internal successors, (26885), 19403 states have internal predecessors, (26885), 0 states have call successors, (0), 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 16:19:57,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19404 states to 19404 states and 26885 transitions. [2022-12-13 16:19:57,718 INFO L78 Accepts]: Start accepts. Automaton has 19404 states and 26885 transitions. Word has length 83 [2022-12-13 16:19:57,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:19:57,718 INFO L495 AbstractCegarLoop]: Abstraction has 19404 states and 26885 transitions. [2022-12-13 16:19:57,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 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 16:19:57,718 INFO L276 IsEmpty]: Start isEmpty. Operand 19404 states and 26885 transitions. [2022-12-13 16:19:57,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-12-13 16:19:57,726 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:19:57,726 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:19:57,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-13 16:19:57,726 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-12-13 16:19:57,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:19:57,726 INFO L85 PathProgramCache]: Analyzing trace with hash -275985466, now seen corresponding path program 1 times [2022-12-13 16:19:57,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:19:57,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681307881] [2022-12-13 16:19:57,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:19:57,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:19:57,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:19:57,849 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 16:19:57,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:19:57,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681307881] [2022-12-13 16:19:57,849 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681307881] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:19:57,849 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:19:57,850 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 16:19:57,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176344581] [2022-12-13 16:19:57,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:19:57,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 16:19:57,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:19:57,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 16:19:57,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 16:19:57,851 INFO L87 Difference]: Start difference. First operand 19404 states and 26885 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 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 16:20:05,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:20:05,788 INFO L93 Difference]: Finished difference Result 30260 states and 42735 transitions. [2022-12-13 16:20:05,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 16:20:05,789 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2022-12-13 16:20:05,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:20:05,819 INFO L225 Difference]: With dead ends: 30260 [2022-12-13 16:20:05,819 INFO L226 Difference]: Without dead ends: 30258 [2022-12-13 16:20:05,824 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 16:20:05,824 INFO L413 NwaCegarLoop]: 1264 mSDtfsCounter, 148 mSDsluCounter, 2377 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 3641 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 16:20:05,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 3641 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 16:20:05,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30258 states. [2022-12-13 16:20:10,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30258 to 19402. [2022-12-13 16:20:10,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19402 states, 19401 states have (on average 1.3815267254265244) internal successors, (26803), 19401 states have internal predecessors, (26803), 0 states have call successors, (0), 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 16:20:10,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19402 states to 19402 states and 26803 transitions. [2022-12-13 16:20:10,385 INFO L78 Accepts]: Start accepts. Automaton has 19402 states and 26803 transitions. Word has length 83 [2022-12-13 16:20:10,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:20:10,386 INFO L495 AbstractCegarLoop]: Abstraction has 19402 states and 26803 transitions. [2022-12-13 16:20:10,386 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 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 16:20:10,386 INFO L276 IsEmpty]: Start isEmpty. Operand 19402 states and 26803 transitions. [2022-12-13 16:20:10,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-12-13 16:20:10,392 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:20:10,393 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 16:20:10,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-13 16:20:10,393 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-12-13 16:20:10,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:20:10,393 INFO L85 PathProgramCache]: Analyzing trace with hash 1130030564, now seen corresponding path program 1 times [2022-12-13 16:20:10,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:20:10,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901508733] [2022-12-13 16:20:10,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:20:10,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:20:10,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:20:10,478 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 16:20:10,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:20:10,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901508733] [2022-12-13 16:20:10,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901508733] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:20:10,478 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:20:10,479 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 16:20:10,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606512074] [2022-12-13 16:20:10,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:20:10,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 16:20:10,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:20:10,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 16:20:10,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 16:20:10,480 INFO L87 Difference]: Start difference. First operand 19402 states and 26803 transitions. Second operand has 7 states, 7 states have (on average 12.0) 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 16:20:31,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:20:31,198 INFO L93 Difference]: Finished difference Result 66920 states and 95019 transitions. [2022-12-13 16:20:31,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 16:20:31,199 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) 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 16:20:31,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:20:31,269 INFO L225 Difference]: With dead ends: 66920 [2022-12-13 16:20:31,269 INFO L226 Difference]: Without dead ends: 59664 [2022-12-13 16:20:31,283 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 16:20:31,284 INFO L413 NwaCegarLoop]: 702 mSDtfsCounter, 5101 mSDsluCounter, 1142 mSDsCounter, 0 mSdLazyCounter, 1469 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5101 SdHoareTripleChecker+Valid, 1844 SdHoareTripleChecker+Invalid, 1602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 1469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-13 16:20:31,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5101 Valid, 1844 Invalid, 1602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 1469 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-13 16:20:31,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59664 states. [2022-12-13 16:20:36,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59664 to 19492. [2022-12-13 16:20:36,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19492 states, 19491 states have (on average 1.3813041916782105) internal successors, (26923), 19491 states have internal predecessors, (26923), 0 states have call successors, (0), 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 16:20:36,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19492 states to 19492 states and 26923 transitions. [2022-12-13 16:20:36,338 INFO L78 Accepts]: Start accepts. Automaton has 19492 states and 26923 transitions. Word has length 84 [2022-12-13 16:20:36,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:20:36,338 INFO L495 AbstractCegarLoop]: Abstraction has 19492 states and 26923 transitions. [2022-12-13 16:20:36,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) 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 16:20:36,338 INFO L276 IsEmpty]: Start isEmpty. Operand 19492 states and 26923 transitions. [2022-12-13 16:20:36,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-12-13 16:20:36,345 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:20:36,345 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 16:20:36,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-13 16:20:36,345 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-12-13 16:20:36,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:20:36,345 INFO L85 PathProgramCache]: Analyzing trace with hash -931305841, now seen corresponding path program 1 times [2022-12-13 16:20:36,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:20:36,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95000468] [2022-12-13 16:20:36,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:20:36,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:20:36,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:20:36,845 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 16:20:36,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:20:36,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95000468] [2022-12-13 16:20:36,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95000468] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:20:36,845 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:20:36,846 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-12-13 16:20:36,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18488376] [2022-12-13 16:20:36,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:20:36,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 16:20:36,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:20:36,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 16:20:36,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-12-13 16:20:36,847 INFO L87 Difference]: Start difference. First operand 19492 states and 26923 transitions. Second operand has 13 states, 13 states have (on average 6.461538461538462) internal successors, (84), 13 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 16:21:28,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:21:28,220 INFO L93 Difference]: Finished difference Result 143305 states and 206077 transitions. [2022-12-13 16:21:28,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-12-13 16:21:28,220 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.461538461538462) internal successors, (84), 13 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 16:21:28,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:21:28,402 INFO L225 Difference]: With dead ends: 143305 [2022-12-13 16:21:28,402 INFO L226 Difference]: Without dead ends: 132395 [2022-12-13 16:21:28,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 306 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=293, Invalid=1039, Unknown=0, NotChecked=0, Total=1332 [2022-12-13 16:21:28,432 INFO L413 NwaCegarLoop]: 1266 mSDtfsCounter, 8467 mSDsluCounter, 9839 mSDsCounter, 0 mSdLazyCounter, 2056 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8467 SdHoareTripleChecker+Valid, 11105 SdHoareTripleChecker+Invalid, 2096 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 2056 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-12-13 16:21:28,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8467 Valid, 11105 Invalid, 2096 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 2056 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-12-13 16:21:28,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132395 states. [2022-12-13 16:21:35,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132395 to 19438. [2022-12-13 16:21:35,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19438 states, 19437 states have (on average 1.3808200854041262) internal successors, (26839), 19437 states have internal predecessors, (26839), 0 states have call successors, (0), 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 16:21:35,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19438 states to 19438 states and 26839 transitions. [2022-12-13 16:21:35,061 INFO L78 Accepts]: Start accepts. Automaton has 19438 states and 26839 transitions. Word has length 84 [2022-12-13 16:21:35,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:21:35,062 INFO L495 AbstractCegarLoop]: Abstraction has 19438 states and 26839 transitions. [2022-12-13 16:21:35,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.461538461538462) internal successors, (84), 13 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 16:21:35,062 INFO L276 IsEmpty]: Start isEmpty. Operand 19438 states and 26839 transitions. [2022-12-13 16:21:35,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-12-13 16:21:35,068 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:21:35,068 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 16:21:35,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-13 16:21:35,069 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-12-13 16:21:35,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:21:35,069 INFO L85 PathProgramCache]: Analyzing trace with hash -1871785294, now seen corresponding path program 1 times [2022-12-13 16:21:35,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:21:35,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420078741] [2022-12-13 16:21:35,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:21:35,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:21:35,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:21:35,262 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 16:21:35,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:21:35,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420078741] [2022-12-13 16:21:35,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420078741] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:21:35,262 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:21:35,262 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 16:21:35,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945700126] [2022-12-13 16:21:35,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:21:35,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 16:21:35,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:21:35,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 16:21:35,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-12-13 16:21:35,264 INFO L87 Difference]: Start difference. First operand 19438 states and 26839 transitions. Second operand has 10 states, 10 states have (on average 8.4) internal successors, (84), 9 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 16:22:00,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:22:00,140 INFO L93 Difference]: Finished difference Result 61456 states and 86006 transitions. [2022-12-13 16:22:00,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-13 16:22:00,141 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.4) internal successors, (84), 9 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 16:22:00,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:22:00,205 INFO L225 Difference]: With dead ends: 61456 [2022-12-13 16:22:00,205 INFO L226 Difference]: Without dead ends: 57647 [2022-12-13 16:22:00,217 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=192, Invalid=510, Unknown=0, NotChecked=0, Total=702 [2022-12-13 16:22:00,218 INFO L413 NwaCegarLoop]: 875 mSDtfsCounter, 3422 mSDsluCounter, 3295 mSDsCounter, 0 mSdLazyCounter, 3515 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3422 SdHoareTripleChecker+Valid, 4170 SdHoareTripleChecker+Invalid, 3527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 3515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-12-13 16:22:00,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3422 Valid, 4170 Invalid, 3527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 3515 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-12-13 16:22:00,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57647 states. [2022-12-13 16:22:06,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57647 to 19442. [2022-12-13 16:22:06,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19442 states, 19441 states have (on average 1.3806902937091714) internal successors, (26842), 19441 states have internal predecessors, (26842), 0 states have call successors, (0), 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 16:22:06,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19442 states to 19442 states and 26842 transitions. [2022-12-13 16:22:06,969 INFO L78 Accepts]: Start accepts. Automaton has 19442 states and 26842 transitions. Word has length 84 [2022-12-13 16:22:06,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:22:06,970 INFO L495 AbstractCegarLoop]: Abstraction has 19442 states and 26842 transitions. [2022-12-13 16:22:06,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.4) internal successors, (84), 9 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 16:22:06,970 INFO L276 IsEmpty]: Start isEmpty. Operand 19442 states and 26842 transitions. [2022-12-13 16:22:06,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-12-13 16:22:06,977 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:22:06,977 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 16:22:06,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-12-13 16:22:06,978 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-12-13 16:22:06,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:22:06,978 INFO L85 PathProgramCache]: Analyzing trace with hash 2052233324, now seen corresponding path program 1 times [2022-12-13 16:22:06,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:22:06,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676266751] [2022-12-13 16:22:06,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:22:06,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:22:06,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:22:07,061 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 16:22:07,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:22:07,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676266751] [2022-12-13 16:22:07,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676266751] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:22:07,062 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:22:07,062 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 16:22:07,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2315176] [2022-12-13 16:22:07,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:22:07,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 16:22:07,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:22:07,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 16:22:07,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 16:22:07,063 INFO L87 Difference]: Start difference. First operand 19442 states and 26842 transitions. Second operand has 7 states, 7 states have (on average 12.0) 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 16:22:40,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:22:40,341 INFO L93 Difference]: Finished difference Result 74446 states and 105945 transitions. [2022-12-13 16:22:40,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 16:22:40,342 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) 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 16:22:40,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:22:40,421 INFO L225 Difference]: With dead ends: 74446 [2022-12-13 16:22:40,421 INFO L226 Difference]: Without dead ends: 67098 [2022-12-13 16:22:40,436 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 16:22:40,436 INFO L413 NwaCegarLoop]: 733 mSDtfsCounter, 5231 mSDsluCounter, 1134 mSDsCounter, 0 mSdLazyCounter, 1318 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5231 SdHoareTripleChecker+Valid, 1867 SdHoareTripleChecker+Invalid, 1451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 1318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-13 16:22:40,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5231 Valid, 1867 Invalid, 1451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 1318 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-13 16:22:40,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67098 states. [2022-12-13 16:22:47,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67098 to 19502. [2022-12-13 16:22:47,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19502 states, 19501 states have (on average 1.3805445874570534) internal successors, (26922), 19501 states have internal predecessors, (26922), 0 states have call successors, (0), 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 16:22:47,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19502 states to 19502 states and 26922 transitions. [2022-12-13 16:22:47,464 INFO L78 Accepts]: Start accepts. Automaton has 19502 states and 26922 transitions. Word has length 84 [2022-12-13 16:22:47,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:22:47,465 INFO L495 AbstractCegarLoop]: Abstraction has 19502 states and 26922 transitions. [2022-12-13 16:22:47,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) 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 16:22:47,465 INFO L276 IsEmpty]: Start isEmpty. Operand 19502 states and 26922 transitions. [2022-12-13 16:22:47,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-12-13 16:22:47,472 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:22:47,472 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 16:22:47,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-12-13 16:22:47,472 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-12-13 16:22:47,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:22:47,473 INFO L85 PathProgramCache]: Analyzing trace with hash -2145588072, now seen corresponding path program 1 times [2022-12-13 16:22:47,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:22:47,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759197241] [2022-12-13 16:22:47,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:22:47,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:22:47,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:22:47,620 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 16:22:47,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:22:47,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759197241] [2022-12-13 16:22:47,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759197241] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:22:47,621 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:22:47,621 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 16:22:47,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473615790] [2022-12-13 16:22:47,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:22:47,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 16:22:47,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:22:47,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 16:22:47,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-13 16:22:47,622 INFO L87 Difference]: Start difference. First operand 19502 states and 26922 transitions. Second operand has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 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 16:23:12,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:23:12,307 INFO L93 Difference]: Finished difference Result 58498 states and 83128 transitions. [2022-12-13 16:23:12,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 16:23:12,308 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 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 16:23:12,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:23:12,354 INFO L225 Difference]: With dead ends: 58498 [2022-12-13 16:23:12,354 INFO L226 Difference]: Without dead ends: 47574 [2022-12-13 16:23:12,367 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 16:23:12,367 INFO L413 NwaCegarLoop]: 766 mSDtfsCounter, 4554 mSDsluCounter, 2238 mSDsCounter, 0 mSdLazyCounter, 2156 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4554 SdHoareTripleChecker+Valid, 3004 SdHoareTripleChecker+Invalid, 2196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 2156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-13 16:23:12,368 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4554 Valid, 3004 Invalid, 2196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 2156 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-13 16:23:12,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47574 states. [2022-12-13 16:23:19,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47574 to 19468. [2022-12-13 16:23:19,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19468 states, 19467 states have (on average 1.3802845841680793) internal successors, (26870), 19467 states have internal predecessors, (26870), 0 states have call successors, (0), 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 16:23:19,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19468 states to 19468 states and 26870 transitions. [2022-12-13 16:23:19,555 INFO L78 Accepts]: Start accepts. Automaton has 19468 states and 26870 transitions. Word has length 84 [2022-12-13 16:23:19,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:23:19,555 INFO L495 AbstractCegarLoop]: Abstraction has 19468 states and 26870 transitions. [2022-12-13 16:23:19,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 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 16:23:19,555 INFO L276 IsEmpty]: Start isEmpty. Operand 19468 states and 26870 transitions. [2022-12-13 16:23:19,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-12-13 16:23:19,562 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:23:19,563 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:23:19,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-12-13 16:23:19,563 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-12-13 16:23:19,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:23:19,563 INFO L85 PathProgramCache]: Analyzing trace with hash -852675660, now seen corresponding path program 1 times [2022-12-13 16:23:19,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:23:19,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512406223] [2022-12-13 16:23:19,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:23:19,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:23:19,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:23:19,823 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 16:23:19,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:23:19,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512406223] [2022-12-13 16:23:19,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512406223] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:23:19,823 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:23:19,824 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 16:23:19,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484900356] [2022-12-13 16:23:19,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:23:19,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 16:23:19,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:23:19,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 16:23:19,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-12-13 16:23:19,825 INFO L87 Difference]: Start difference. First operand 19468 states and 26870 transitions. Second operand has 10 states, 10 states have (on average 8.5) internal successors, (85), 9 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 16:23:51,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:23:51,813 INFO L93 Difference]: Finished difference Result 66536 states and 93308 transitions. [2022-12-13 16:23:51,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-13 16:23:51,814 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.5) internal successors, (85), 9 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 16:23:51,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:23:51,886 INFO L225 Difference]: With dead ends: 66536 [2022-12-13 16:23:51,886 INFO L226 Difference]: Without dead ends: 60659 [2022-12-13 16:23:51,900 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=179, Invalid=523, Unknown=0, NotChecked=0, Total=702 [2022-12-13 16:23:51,901 INFO L413 NwaCegarLoop]: 900 mSDtfsCounter, 5710 mSDsluCounter, 4000 mSDsCounter, 0 mSdLazyCounter, 4020 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5710 SdHoareTripleChecker+Valid, 4900 SdHoareTripleChecker+Invalid, 4032 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 4020 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-12-13 16:23:51,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5710 Valid, 4900 Invalid, 4032 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 4020 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-12-13 16:23:51,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60659 states. [2022-12-13 16:23:59,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60659 to 19464. [2022-12-13 16:23:59,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19464 states, 19463 states have (on average 1.3801572213944406) internal successors, (26862), 19463 states have internal predecessors, (26862), 0 states have call successors, (0), 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 16:23:59,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19464 states to 19464 states and 26862 transitions. [2022-12-13 16:23:59,661 INFO L78 Accepts]: Start accepts. Automaton has 19464 states and 26862 transitions. Word has length 85 [2022-12-13 16:23:59,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:23:59,661 INFO L495 AbstractCegarLoop]: Abstraction has 19464 states and 26862 transitions. [2022-12-13 16:23:59,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.5) internal successors, (85), 9 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 16:23:59,661 INFO L276 IsEmpty]: Start isEmpty. Operand 19464 states and 26862 transitions. [2022-12-13 16:23:59,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-12-13 16:23:59,668 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:23:59,668 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 16:23:59,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-12-13 16:23:59,669 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-12-13 16:23:59,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:23:59,669 INFO L85 PathProgramCache]: Analyzing trace with hash 816387227, now seen corresponding path program 1 times [2022-12-13 16:23:59,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:23:59,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893946082] [2022-12-13 16:23:59,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:23:59,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:23:59,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:24:00,014 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 16:24:00,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:24:00,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893946082] [2022-12-13 16:24:00,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893946082] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:24:00,014 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:24:00,014 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 16:24:00,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674557248] [2022-12-13 16:24:00,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:24:00,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 16:24:00,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:24:00,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 16:24:00,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-12-13 16:24:00,016 INFO L87 Difference]: Start difference. First operand 19464 states and 26862 transitions. Second operand has 12 states, 12 states have (on average 7.083333333333333) internal successors, (85), 12 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 16:24:42,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:24:42,473 INFO L93 Difference]: Finished difference Result 88478 states and 126547 transitions. [2022-12-13 16:24:42,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-13 16:24:42,474 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.083333333333333) internal successors, (85), 12 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 16:24:42,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:24:42,565 INFO L225 Difference]: With dead ends: 88478 [2022-12-13 16:24:42,565 INFO L226 Difference]: Without dead ends: 77226 [2022-12-13 16:24:42,583 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=156, Invalid=444, Unknown=0, NotChecked=0, Total=600 [2022-12-13 16:24:42,584 INFO L413 NwaCegarLoop]: 1305 mSDtfsCounter, 6006 mSDsluCounter, 7731 mSDsCounter, 0 mSdLazyCounter, 1352 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6006 SdHoareTripleChecker+Valid, 9036 SdHoareTripleChecker+Invalid, 1389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-13 16:24:42,584 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6006 Valid, 9036 Invalid, 1389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1352 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-13 16:24:42,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77226 states. [2022-12-13 16:24:50,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77226 to 19044. [2022-12-13 16:24:50,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19044 states, 19043 states have (on average 1.381925116840834) internal successors, (26316), 19043 states have internal predecessors, (26316), 0 states have call successors, (0), 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 16:24:50,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19044 states to 19044 states and 26316 transitions. [2022-12-13 16:24:50,704 INFO L78 Accepts]: Start accepts. Automaton has 19044 states and 26316 transitions. Word has length 85 [2022-12-13 16:24:50,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:24:50,705 INFO L495 AbstractCegarLoop]: Abstraction has 19044 states and 26316 transitions. [2022-12-13 16:24:50,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.083333333333333) internal successors, (85), 12 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 16:24:50,705 INFO L276 IsEmpty]: Start isEmpty. Operand 19044 states and 26316 transitions. [2022-12-13 16:24:50,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-12-13 16:24:50,714 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:24:50,715 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 16:24:50,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-12-13 16:24:50,715 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-12-13 16:24:50,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:24:50,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1989561039, now seen corresponding path program 1 times [2022-12-13 16:24:50,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:24:50,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302004894] [2022-12-13 16:24:50,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:24:50,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:24:50,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:24:50,833 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 16:24:50,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:24:50,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302004894] [2022-12-13 16:24:50,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302004894] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:24:50,833 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:24:50,833 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 16:24:50,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933705817] [2022-12-13 16:24:50,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:24:50,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 16:24:50,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:24:50,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 16:24:50,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 16:24:50,835 INFO L87 Difference]: Start difference. First operand 19044 states and 26316 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) 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 16:25:27,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:25:27,119 INFO L93 Difference]: Finished difference Result 66650 states and 94640 transitions. [2022-12-13 16:25:27,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 16:25:27,120 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) 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 16:25:27,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:25:27,190 INFO L225 Difference]: With dead ends: 66650 [2022-12-13 16:25:27,191 INFO L226 Difference]: Without dead ends: 59358 [2022-12-13 16:25:27,204 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 16:25:27,204 INFO L413 NwaCegarLoop]: 693 mSDtfsCounter, 4993 mSDsluCounter, 1132 mSDsCounter, 0 mSdLazyCounter, 1432 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4993 SdHoareTripleChecker+Valid, 1825 SdHoareTripleChecker+Invalid, 1559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 1432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-13 16:25:27,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4993 Valid, 1825 Invalid, 1559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 1432 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-13 16:25:27,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59358 states. [2022-12-13 16:25:35,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59358 to 19239. [2022-12-13 16:25:35,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19239 states, 19238 states have (on average 1.3816924836261566) internal successors, (26581), 19238 states have internal predecessors, (26581), 0 states have call successors, (0), 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 16:25:35,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19239 states to 19239 states and 26581 transitions. [2022-12-13 16:25:35,635 INFO L78 Accepts]: Start accepts. Automaton has 19239 states and 26581 transitions. Word has length 85 [2022-12-13 16:25:35,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:25:35,635 INFO L495 AbstractCegarLoop]: Abstraction has 19239 states and 26581 transitions. [2022-12-13 16:25:35,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) 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 16:25:35,635 INFO L276 IsEmpty]: Start isEmpty. Operand 19239 states and 26581 transitions. [2022-12-13 16:25:35,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-12-13 16:25:35,643 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:25:35,643 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:25:35,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-12-13 16:25:35,643 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-12-13 16:25:35,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:25:35,643 INFO L85 PathProgramCache]: Analyzing trace with hash 1428621699, now seen corresponding path program 1 times [2022-12-13 16:25:35,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:25:35,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150548696] [2022-12-13 16:25:35,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:25:35,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:25:35,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:25:36,091 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 16:25:36,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:25:36,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150548696] [2022-12-13 16:25:36,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150548696] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:25:36,092 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:25:36,092 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-12-13 16:25:36,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760797917] [2022-12-13 16:25:36,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:25:36,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 16:25:36,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:25:36,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 16:25:36,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2022-12-13 16:25:36,093 INFO L87 Difference]: Start difference. First operand 19239 states and 26581 transitions. Second operand has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 13 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 16:26:38,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:26:38,503 INFO L93 Difference]: Finished difference Result 112572 states and 160984 transitions. [2022-12-13 16:26:38,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-13 16:26:38,504 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 13 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 16:26:38,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:26:38,642 INFO L225 Difference]: With dead ends: 112572 [2022-12-13 16:26:38,642 INFO L226 Difference]: Without dead ends: 100806 [2022-12-13 16:26:38,666 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=197, Invalid=559, Unknown=0, NotChecked=0, Total=756 [2022-12-13 16:26:38,667 INFO L413 NwaCegarLoop]: 1354 mSDtfsCounter, 7292 mSDsluCounter, 7691 mSDsCounter, 0 mSdLazyCounter, 736 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7292 SdHoareTripleChecker+Valid, 9045 SdHoareTripleChecker+Invalid, 765 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-13 16:26:38,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7292 Valid, 9045 Invalid, 765 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 736 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-13 16:26:38,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100806 states. [2022-12-13 16:26:48,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100806 to 18317. [2022-12-13 16:26:48,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18317 states, 18316 states have (on average 1.38419960690107) internal successors, (25353), 18316 states have internal predecessors, (25353), 0 states have call successors, (0), 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 16:26:48,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18317 states to 18317 states and 25353 transitions. [2022-12-13 16:26:48,646 INFO L78 Accepts]: Start accepts. Automaton has 18317 states and 25353 transitions. Word has length 85 [2022-12-13 16:26:48,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:26:48,647 INFO L495 AbstractCegarLoop]: Abstraction has 18317 states and 25353 transitions. [2022-12-13 16:26:48,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 13 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 16:26:48,647 INFO L276 IsEmpty]: Start isEmpty. Operand 18317 states and 25353 transitions. [2022-12-13 16:26:48,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-12-13 16:26:48,654 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:26:48,654 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 16:26:48,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-12-13 16:26:48,654 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-12-13 16:26:48,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:26:48,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1055892303, now seen corresponding path program 1 times [2022-12-13 16:26:48,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:26:48,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240383593] [2022-12-13 16:26:48,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:26:48,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:26:48,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:26:48,792 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 16:26:48,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:26:48,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240383593] [2022-12-13 16:26:48,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240383593] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:26:48,792 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:26:48,792 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 16:26:48,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635931899] [2022-12-13 16:26:48,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:26:48,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 16:26:48,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:26:48,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 16:26:48,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-13 16:26:48,794 INFO L87 Difference]: Start difference. First operand 18317 states and 25353 transitions. Second operand has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 8 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 16:27:19,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:27:19,962 INFO L93 Difference]: Finished difference Result 57118 states and 81295 transitions. [2022-12-13 16:27:19,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 16:27:19,963 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 8 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 16:27:19,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:27:20,008 INFO L225 Difference]: With dead ends: 57118 [2022-12-13 16:27:20,008 INFO L226 Difference]: Without dead ends: 45938 [2022-12-13 16:27:20,021 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 16:27:20,021 INFO L413 NwaCegarLoop]: 713 mSDtfsCounter, 4104 mSDsluCounter, 2046 mSDsCounter, 0 mSdLazyCounter, 1957 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4104 SdHoareTripleChecker+Valid, 2759 SdHoareTripleChecker+Invalid, 1997 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1957 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-13 16:27:20,021 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4104 Valid, 2759 Invalid, 1997 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1957 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-13 16:27:20,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45938 states. [2022-12-13 16:27:29,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45938 to 18137. [2022-12-13 16:27:29,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18137 states, 18136 states have (on average 1.3840427878253199) internal successors, (25101), 18136 states have internal predecessors, (25101), 0 states have call successors, (0), 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 16:27:29,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18137 states to 18137 states and 25101 transitions. [2022-12-13 16:27:29,642 INFO L78 Accepts]: Start accepts. Automaton has 18137 states and 25101 transitions. Word has length 86 [2022-12-13 16:27:29,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:27:29,642 INFO L495 AbstractCegarLoop]: Abstraction has 18137 states and 25101 transitions. [2022-12-13 16:27:29,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 8 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 16:27:29,642 INFO L276 IsEmpty]: Start isEmpty. Operand 18137 states and 25101 transitions. [2022-12-13 16:27:29,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-12-13 16:27:29,649 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:27:29,649 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 16:27:29,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-12-13 16:27:29,649 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-12-13 16:27:29,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:27:29,650 INFO L85 PathProgramCache]: Analyzing trace with hash -1725511226, now seen corresponding path program 1 times [2022-12-13 16:27:29,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:27:29,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275191461] [2022-12-13 16:27:29,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:27:29,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:27:29,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:27:29,722 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 16:27:29,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:27:29,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275191461] [2022-12-13 16:27:29,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275191461] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:27:29,723 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:27:29,723 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 16:27:29,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580901477] [2022-12-13 16:27:29,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:27:29,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 16:27:29,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:27:29,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 16:27:29,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 16:27:29,723 INFO L87 Difference]: Start difference. First operand 18137 states and 25101 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 6 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 16:28:23,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:28:23,555 INFO L93 Difference]: Finished difference Result 81328 states and 116004 transitions. [2022-12-13 16:28:23,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 16:28:23,556 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 6 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 16:28:23,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:28:23,644 INFO L225 Difference]: With dead ends: 81328 [2022-12-13 16:28:23,645 INFO L226 Difference]: Without dead ends: 73726 [2022-12-13 16:28:23,661 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 16:28:23,662 INFO L413 NwaCegarLoop]: 677 mSDtfsCounter, 5103 mSDsluCounter, 1105 mSDsCounter, 0 mSdLazyCounter, 1214 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5103 SdHoareTripleChecker+Valid, 1782 SdHoareTripleChecker+Invalid, 1332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 1214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-13 16:28:23,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5103 Valid, 1782 Invalid, 1332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 1214 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-13 16:28:23,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73726 states. [2022-12-13 16:28:33,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73726 to 18212. [2022-12-13 16:28:33,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18212 states, 18211 states have (on average 1.383833946515842) internal successors, (25201), 18211 states have internal predecessors, (25201), 0 states have call successors, (0), 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 16:28:33,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18212 states to 18212 states and 25201 transitions. [2022-12-13 16:28:33,758 INFO L78 Accepts]: Start accepts. Automaton has 18212 states and 25201 transitions. Word has length 86 [2022-12-13 16:28:33,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:28:33,758 INFO L495 AbstractCegarLoop]: Abstraction has 18212 states and 25201 transitions. [2022-12-13 16:28:33,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 6 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 16:28:33,759 INFO L276 IsEmpty]: Start isEmpty. Operand 18212 states and 25201 transitions. [2022-12-13 16:28:33,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-12-13 16:28:33,765 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:28:33,765 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 16:28:33,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-12-13 16:28:33,766 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-12-13 16:28:33,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:28:33,766 INFO L85 PathProgramCache]: Analyzing trace with hash -1817894882, now seen corresponding path program 1 times [2022-12-13 16:28:33,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:28:33,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947782051] [2022-12-13 16:28:33,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:28:33,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:28:33,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:28:33,948 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 16:28:33,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:28:33,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947782051] [2022-12-13 16:28:33,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947782051] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:28:33,949 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:28:33,949 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 16:28:33,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405273613] [2022-12-13 16:28:33,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:28:33,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 16:28:33,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:28:33,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 16:28:33,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-12-13 16:28:33,949 INFO L87 Difference]: Start difference. First operand 18212 states and 25201 transitions. Second operand has 10 states, 10 states have (on average 8.6) internal successors, (86), 9 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 16:29:21,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:29:21,403 INFO L93 Difference]: Finished difference Result 77581 states and 110497 transitions. [2022-12-13 16:29:21,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-13 16:29:21,404 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.6) internal successors, (86), 9 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 16:29:21,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:29:21,485 INFO L225 Difference]: With dead ends: 77581 [2022-12-13 16:29:21,485 INFO L226 Difference]: Without dead ends: 65677 [2022-12-13 16:29:21,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2022-12-13 16:29:21,504 INFO L413 NwaCegarLoop]: 786 mSDtfsCounter, 6051 mSDsluCounter, 3419 mSDsCounter, 0 mSdLazyCounter, 2681 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6051 SdHoareTripleChecker+Valid, 4205 SdHoareTripleChecker+Invalid, 2711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 2681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-12-13 16:29:21,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6051 Valid, 4205 Invalid, 2711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 2681 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-12-13 16:29:21,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65677 states. [2022-12-13 16:29:32,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65677 to 17673. [2022-12-13 16:29:32,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17673 states, 17672 states have (on average 1.384506564056134) internal successors, (24467), 17672 states have internal predecessors, (24467), 0 states have call successors, (0), 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 16:29:32,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17673 states to 17673 states and 24467 transitions. [2022-12-13 16:29:32,071 INFO L78 Accepts]: Start accepts. Automaton has 17673 states and 24467 transitions. Word has length 86 [2022-12-13 16:29:32,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:29:32,072 INFO L495 AbstractCegarLoop]: Abstraction has 17673 states and 24467 transitions. [2022-12-13 16:29:32,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.6) internal successors, (86), 9 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 16:29:32,072 INFO L276 IsEmpty]: Start isEmpty. Operand 17673 states and 24467 transitions. [2022-12-13 16:29:32,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-12-13 16:29:32,078 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:29:32,078 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 16:29:32,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-12-13 16:29:32,079 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-12-13 16:29:32,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:29:32,079 INFO L85 PathProgramCache]: Analyzing trace with hash 616570297, now seen corresponding path program 1 times [2022-12-13 16:29:32,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:29:32,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295742930] [2022-12-13 16:29:32,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:29:32,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:29:32,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:29:32,231 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 16:29:32,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:29:32,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295742930] [2022-12-13 16:29:32,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295742930] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:29:32,232 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:29:32,232 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 16:29:32,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516523280] [2022-12-13 16:29:32,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:29:32,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 16:29:32,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:29:32,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 16:29:32,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 16:29:32,233 INFO L87 Difference]: Start difference. First operand 17673 states and 24467 transitions. Second operand has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 8 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 16:30:06,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:30:06,420 INFO L93 Difference]: Finished difference Result 56504 states and 80494 transitions. [2022-12-13 16:30:06,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 16:30:06,421 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 8 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 16:30:06,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:30:06,469 INFO L225 Difference]: With dead ends: 56504 [2022-12-13 16:30:06,469 INFO L226 Difference]: Without dead ends: 45482 [2022-12-13 16:30:06,482 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 16:30:06,483 INFO L413 NwaCegarLoop]: 732 mSDtfsCounter, 5394 mSDsluCounter, 2135 mSDsCounter, 0 mSdLazyCounter, 1966 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5394 SdHoareTripleChecker+Valid, 2867 SdHoareTripleChecker+Invalid, 2002 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1966 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-13 16:30:06,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5394 Valid, 2867 Invalid, 2002 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1966 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-13 16:30:06,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45482 states. [2022-12-13 16:30:17,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45482 to 17590. [2022-12-13 16:30:17,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17590 states, 17589 states have (on average 1.3841605548922622) internal successors, (24346), 17589 states have internal predecessors, (24346), 0 states have call successors, (0), 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 16:30:17,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17590 states to 17590 states and 24346 transitions. [2022-12-13 16:30:17,226 INFO L78 Accepts]: Start accepts. Automaton has 17590 states and 24346 transitions. Word has length 86 [2022-12-13 16:30:17,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:30:17,226 INFO L495 AbstractCegarLoop]: Abstraction has 17590 states and 24346 transitions. [2022-12-13 16:30:17,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 8 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 16:30:17,226 INFO L276 IsEmpty]: Start isEmpty. Operand 17590 states and 24346 transitions. [2022-12-13 16:30:17,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-12-13 16:30:17,233 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:30:17,233 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 16:30:17,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-12-13 16:30:17,233 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-12-13 16:30:17,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:30:17,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1491204172, now seen corresponding path program 1 times [2022-12-13 16:30:17,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:30:17,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768072365] [2022-12-13 16:30:17,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:30:17,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:30:17,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:30:17,271 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 16:30:17,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:30:17,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768072365] [2022-12-13 16:30:17,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768072365] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:30:17,272 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:30:17,272 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 16:30:17,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657751725] [2022-12-13 16:30:17,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:30:17,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 16:30:17,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:30:17,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 16:30:17,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 16:30:17,273 INFO L87 Difference]: Start difference. First operand 17590 states and 24346 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 16:30:27,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:30:27,867 INFO L93 Difference]: Finished difference Result 25612 states and 35781 transitions. [2022-12-13 16:30:27,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 16:30:27,868 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 16:30:27,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:30:27,881 INFO L225 Difference]: With dead ends: 25612 [2022-12-13 16:30:27,881 INFO L226 Difference]: Without dead ends: 17592 [2022-12-13 16:30:27,887 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 16:30:27,887 INFO L413 NwaCegarLoop]: 1254 mSDtfsCounter, 505 mSDsluCounter, 743 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 505 SdHoareTripleChecker+Valid, 1997 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 16:30:27,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [505 Valid, 1997 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 16:30:27,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17592 states. [2022-12-13 16:30:38,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17592 to 17590. [2022-12-13 16:30:38,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17590 states, 17589 states have (on average 1.3726761043834215) internal successors, (24144), 17589 states have internal predecessors, (24144), 0 states have call successors, (0), 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 16:30:38,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17590 states to 17590 states and 24144 transitions. [2022-12-13 16:30:38,446 INFO L78 Accepts]: Start accepts. Automaton has 17590 states and 24144 transitions. Word has length 87 [2022-12-13 16:30:38,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:30:38,446 INFO L495 AbstractCegarLoop]: Abstraction has 17590 states and 24144 transitions. [2022-12-13 16:30:38,446 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 16:30:38,447 INFO L276 IsEmpty]: Start isEmpty. Operand 17590 states and 24144 transitions. [2022-12-13 16:30:38,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-12-13 16:30:38,453 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:30:38,454 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 16:30:38,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-12-13 16:30:38,454 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-12-13 16:30:38,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:30:38,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1650309417, now seen corresponding path program 1 times [2022-12-13 16:30:38,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:30:38,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525668373] [2022-12-13 16:30:38,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:30:38,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:30:38,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:30:38,862 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 16:30:38,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:30:38,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525668373] [2022-12-13 16:30:38,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525668373] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:30:38,863 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:30:38,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-12-13 16:30:38,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501568837] [2022-12-13 16:30:38,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:30:38,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 16:30:38,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:30:38,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 16:30:38,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-12-13 16:30:38,864 INFO L87 Difference]: Start difference. First operand 17590 states and 24144 transitions. Second operand has 13 states, 13 states have (on average 6.6923076923076925) internal successors, (87), 13 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)