./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+sep-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b 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_76a6ad63-b665-4f65-b964-e6fa119719d7/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76a6ad63-b665-4f65-b964-e6fa119719d7/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76a6ad63-b665-4f65-b964-e6fa119719d7/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76a6ad63-b665-4f65-b964-e6fa119719d7/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76a6ad63-b665-4f65-b964-e6fa119719d7/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76a6ad63-b665-4f65-b964-e6fa119719d7/bin/utaipan-I9t0OCRTmS --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 61079a62c86de0622c6f0d8d69ab5d3bd5c88209c75f4f3a60aa83a2a40500fd --- 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-8393723 [2022-11-19 07:28:05,868 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:28:05,871 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:28:05,914 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:28:05,915 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:28:05,919 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:28:05,922 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:28:05,925 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:28:05,930 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:28:05,932 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:28:05,933 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:28:05,936 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:28:05,936 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:28:05,942 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:28:05,943 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:28:05,945 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:28:05,947 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:28:05,953 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:28:05,955 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:28:05,957 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:28:05,961 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:28:05,962 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:28:05,965 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:28:05,966 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:28:05,974 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:28:05,979 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:28:05,979 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:28:05,980 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:28:05,981 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:28:05,982 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:28:05,983 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:28:05,985 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:28:05,986 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:28:05,988 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:28:05,990 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:28:05,990 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:28:05,991 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:28:05,991 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:28:05,991 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:28:05,992 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:28:05,993 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:28:05,994 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76a6ad63-b665-4f65-b964-e6fa119719d7/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-19 07:28:06,035 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:28:06,036 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:28:06,036 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:28:06,037 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:28:06,038 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:28:06,038 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:28:06,038 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:28:06,039 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:28:06,039 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:28:06,039 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:28:06,040 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:28:06,041 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:28:06,041 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:28:06,041 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:28:06,041 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:28:06,042 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:28:06,042 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:28:06,042 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:28:06,043 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:28:06,043 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 07:28:06,044 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:28:06,044 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 07:28:06,044 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:28:06,044 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:28:06,045 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:28:06,045 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:28:06,045 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 07:28:06,047 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:28:06,047 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:28:06,048 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:28:06,048 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:28:06,049 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:28:06,049 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:28:06,050 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:28:06,050 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:28:06,050 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:28:06,051 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:28:06,051 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:28:06,051 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:28:06,051 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:28:06,052 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:28:06,052 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_76a6ad63-b665-4f65-b964-e6fa119719d7/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76a6ad63-b665-4f65-b964-e6fa119719d7/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 61079a62c86de0622c6f0d8d69ab5d3bd5c88209c75f4f3a60aa83a2a40500fd [2022-11-19 07:28:06,397 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:28:06,423 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:28:06,425 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:28:06,427 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:28:06,428 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:28:06,429 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76a6ad63-b665-4f65-b964-e6fa119719d7/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2022-11-19 07:28:06,507 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76a6ad63-b665-4f65-b964-e6fa119719d7/bin/utaipan-I9t0OCRTmS/data/0c3131b20/7105f18ee6324f4b8154aadb2ef30796/FLAGd8f6d1c4b [2022-11-19 07:28:07,680 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:28:07,681 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76a6ad63-b665-4f65-b964-e6fa119719d7/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2022-11-19 07:28:07,775 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76a6ad63-b665-4f65-b964-e6fa119719d7/bin/utaipan-I9t0OCRTmS/data/0c3131b20/7105f18ee6324f4b8154aadb2ef30796/FLAGd8f6d1c4b [2022-11-19 07:28:07,874 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76a6ad63-b665-4f65-b964-e6fa119719d7/bin/utaipan-I9t0OCRTmS/data/0c3131b20/7105f18ee6324f4b8154aadb2ef30796 [2022-11-19 07:28:07,876 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:28:07,878 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:28:07,882 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:28:07,882 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:28:07,885 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:28:07,886 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:28:07" (1/1) ... [2022-11-19 07:28:07,888 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38e75c49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:28:07, skipping insertion in model container [2022-11-19 07:28:07,888 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:28:07" (1/1) ... [2022-11-19 07:28:07,896 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:28:08,363 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:28:09,367 WARN L234 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_76a6ad63-b665-4f65-b964-e6fa119719d7/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[82693,82706] [2022-11-19 07:28:09,507 WARN L234 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_76a6ad63-b665-4f65-b964-e6fa119719d7/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[113477,113490] [2022-11-19 07:28:09,706 WARN L234 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_76a6ad63-b665-4f65-b964-e6fa119719d7/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[165794,165807] [2022-11-19 07:28:09,819 WARN L234 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_76a6ad63-b665-4f65-b964-e6fa119719d7/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[197365,197378] [2022-11-19 07:28:09,863 WARN L234 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_76a6ad63-b665-4f65-b964-e6fa119719d7/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[205886,205899] [2022-11-19 07:28:09,876 WARN L234 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_76a6ad63-b665-4f65-b964-e6fa119719d7/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[207836,207849] [2022-11-19 07:28:09,934 WARN L234 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_76a6ad63-b665-4f65-b964-e6fa119719d7/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[224171,224184] [2022-11-19 07:28:09,958 WARN L234 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_76a6ad63-b665-4f65-b964-e6fa119719d7/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[231245,231258] [2022-11-19 07:28:10,064 WARN L234 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_76a6ad63-b665-4f65-b964-e6fa119719d7/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[259571,259584] [2022-11-19 07:28:10,156 WARN L234 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_76a6ad63-b665-4f65-b964-e6fa119719d7/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[287337,287350] [2022-11-19 07:28:10,407 WARN L234 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_76a6ad63-b665-4f65-b964-e6fa119719d7/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[370939,370952] [2022-11-19 07:28:10,461 WARN L234 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_76a6ad63-b665-4f65-b964-e6fa119719d7/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[389606,389619] [2022-11-19 07:28:10,516 WARN L234 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_76a6ad63-b665-4f65-b964-e6fa119719d7/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[408649,408662] [2022-11-19 07:28:10,539 WARN L234 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_76a6ad63-b665-4f65-b964-e6fa119719d7/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[415665,415678] [2022-11-19 07:28:10,551 WARN L234 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_76a6ad63-b665-4f65-b964-e6fa119719d7/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[419162,419175] [2022-11-19 07:28:10,650 WARN L234 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_76a6ad63-b665-4f65-b964-e6fa119719d7/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[433807,433820] [2022-11-19 07:28:10,726 WARN L234 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_76a6ad63-b665-4f65-b964-e6fa119719d7/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[448287,448300] [2022-11-19 07:28:10,808 WARN L234 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_76a6ad63-b665-4f65-b964-e6fa119719d7/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[480365,480378] [2022-11-19 07:28:11,030 WARN L234 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_76a6ad63-b665-4f65-b964-e6fa119719d7/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[569807,569820] [2022-11-19 07:28:11,266 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:28:11,296 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:28:11,564 WARN L234 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_76a6ad63-b665-4f65-b964-e6fa119719d7/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[82693,82706] [2022-11-19 07:28:11,645 WARN L234 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_76a6ad63-b665-4f65-b964-e6fa119719d7/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[113477,113490] [2022-11-19 07:28:11,786 WARN L234 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_76a6ad63-b665-4f65-b964-e6fa119719d7/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[165794,165807] [2022-11-19 07:28:11,864 WARN L234 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_76a6ad63-b665-4f65-b964-e6fa119719d7/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[197365,197378] [2022-11-19 07:28:11,886 WARN L234 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_76a6ad63-b665-4f65-b964-e6fa119719d7/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[205886,205899] [2022-11-19 07:28:11,893 WARN L234 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_76a6ad63-b665-4f65-b964-e6fa119719d7/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[207836,207849] [2022-11-19 07:28:11,933 WARN L234 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_76a6ad63-b665-4f65-b964-e6fa119719d7/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[224171,224184] [2022-11-19 07:28:11,951 WARN L234 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_76a6ad63-b665-4f65-b964-e6fa119719d7/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[231245,231258] [2022-11-19 07:28:12,022 WARN L234 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_76a6ad63-b665-4f65-b964-e6fa119719d7/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[259571,259584] [2022-11-19 07:28:12,094 WARN L234 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_76a6ad63-b665-4f65-b964-e6fa119719d7/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[287337,287350] [2022-11-19 07:28:12,293 WARN L234 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_76a6ad63-b665-4f65-b964-e6fa119719d7/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[370939,370952] [2022-11-19 07:28:12,337 WARN L234 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_76a6ad63-b665-4f65-b964-e6fa119719d7/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[389606,389619] [2022-11-19 07:28:12,385 WARN L234 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_76a6ad63-b665-4f65-b964-e6fa119719d7/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[408649,408662] [2022-11-19 07:28:12,402 WARN L234 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_76a6ad63-b665-4f65-b964-e6fa119719d7/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[415665,415678] [2022-11-19 07:28:12,412 WARN L234 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_76a6ad63-b665-4f65-b964-e6fa119719d7/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[419162,419175] [2022-11-19 07:28:12,444 WARN L234 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_76a6ad63-b665-4f65-b964-e6fa119719d7/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[433807,433820] [2022-11-19 07:28:12,526 WARN L234 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_76a6ad63-b665-4f65-b964-e6fa119719d7/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[448287,448300] [2022-11-19 07:28:12,604 WARN L234 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_76a6ad63-b665-4f65-b964-e6fa119719d7/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[480365,480378] [2022-11-19 07:28:12,818 WARN L234 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_76a6ad63-b665-4f65-b964-e6fa119719d7/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[569807,569820] [2022-11-19 07:28:13,033 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:28:13,074 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:28:13,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:28:13 WrapperNode [2022-11-19 07:28:13,074 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:28:13,076 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:28:13,076 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:28:13,076 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:28:13,084 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:28:13" (1/1) ... [2022-11-19 07:28:13,186 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:28:13" (1/1) ... [2022-11-19 07:28:13,688 INFO L138 Inliner]: procedures = 25, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 28483 [2022-11-19 07:28:13,688 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:28:13,689 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:28:13,689 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:28:13,690 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:28:13,700 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:28:13" (1/1) ... [2022-11-19 07:28:13,705 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:28:13" (1/1) ... [2022-11-19 07:28:13,867 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:28:13" (1/1) ... [2022-11-19 07:28:13,867 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:28:13" (1/1) ... [2022-11-19 07:28:14,041 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:28:13" (1/1) ... [2022-11-19 07:28:14,115 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:28:13" (1/1) ... [2022-11-19 07:28:14,158 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:28:13" (1/1) ... [2022-11-19 07:28:14,193 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:28:13" (1/1) ... [2022-11-19 07:28:14,282 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:28:14,284 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:28:14,284 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:28:14,284 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:28:14,285 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:28:13" (1/1) ... [2022-11-19 07:28:14,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:28:14,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76a6ad63-b665-4f65-b964-e6fa119719d7/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:28:14,324 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76a6ad63-b665-4f65-b964-e6fa119719d7/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:28:14,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76a6ad63-b665-4f65-b964-e6fa119719d7/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:28:14,371 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:28:14,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:28:14,371 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:28:14,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:28:15,092 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:28:15,095 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:28:28,174 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:28:30,616 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:28:30,617 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-19 07:28:30,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:28:30 BoogieIcfgContainer [2022-11-19 07:28:30,629 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:28:30,632 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:28:30,632 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:28:30,640 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:28:30,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:28:07" (1/3) ... [2022-11-19 07:28:30,641 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@468d43d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:28:30, skipping insertion in model container [2022-11-19 07:28:30,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:28:13" (2/3) ... [2022-11-19 07:28:30,642 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@468d43d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:28:30, skipping insertion in model container [2022-11-19 07:28:30,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:28:30" (3/3) ... [2022-11-19 07:28:30,644 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2022-11-19 07:28:30,665 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:28:30,665 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 19 error locations. [2022-11-19 07:28:30,805 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:28:30,812 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=FINITE_AUTOMATA, 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;@2f58bc5a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:28:30,812 INFO L358 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2022-11-19 07:28:30,834 INFO L276 IsEmpty]: Start isEmpty. Operand has 5974 states, 5954 states have (on average 1.8098757138058448) internal successors, (10776), 5973 states have internal predecessors, (10776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:28:30,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-19 07:28:30,870 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:28:30,871 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] [2022-11-19 07:28:30,872 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-11-19 07:28:30,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:28:30,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1586848728, now seen corresponding path program 1 times [2022-11-19 07:28:30,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:28:30,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757069322] [2022-11-19 07:28:30,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:28:30,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:28:31,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:28:31,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:28:31,574 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:28:31,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757069322] [2022-11-19 07:28:31,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757069322] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:28:31,575 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:28:31,576 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:28:31,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439632617] [2022-11-19 07:28:31,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:28:31,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:28:31,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:28:31,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:28:31,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:28:31,638 INFO L87 Difference]: Start difference. First operand has 5974 states, 5954 states have (on average 1.8098757138058448) internal successors, (10776), 5973 states have internal predecessors, (10776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 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) [2022-11-19 07:28:38,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:28:38,357 INFO L93 Difference]: Finished difference Result 8746 states and 15572 transitions. [2022-11-19 07:28:38,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:28:38,360 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 [2022-11-19 07:28:38,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:28:38,408 INFO L225 Difference]: With dead ends: 8746 [2022-11-19 07:28:38,408 INFO L226 Difference]: Without dead ends: 5503 [2022-11-19 07:28:38,420 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-19 07:28:38,423 INFO L413 NwaCegarLoop]: 4488 mSDtfsCounter, 27749 mSDsluCounter, 803 mSDsCounter, 0 mSdLazyCounter, 4607 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27749 SdHoareTripleChecker+Valid, 5291 SdHoareTripleChecker+Invalid, 4666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 4607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-11-19 07:28:38,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27749 Valid, 5291 Invalid, 4666 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [59 Valid, 4607 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2022-11-19 07:28:38,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5503 states. [2022-11-19 07:28:38,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5503 to 5473. [2022-11-19 07:28:38,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5473 states, 5454 states have (on average 1.3094976164283094) internal successors, (7142), 5472 states have internal predecessors, (7142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:28:38,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5473 states to 5473 states and 7142 transitions. [2022-11-19 07:28:38,756 INFO L78 Accepts]: Start accepts. Automaton has 5473 states and 7142 transitions. Word has length 76 [2022-11-19 07:28:38,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:28:38,758 INFO L495 AbstractCegarLoop]: Abstraction has 5473 states and 7142 transitions. [2022-11-19 07:28:38,759 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) [2022-11-19 07:28:38,759 INFO L276 IsEmpty]: Start isEmpty. Operand 5473 states and 7142 transitions. [2022-11-19 07:28:38,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-19 07:28:38,776 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:28:38,776 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] [2022-11-19 07:28:38,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:28:38,777 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-11-19 07:28:38,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:28:38,778 INFO L85 PathProgramCache]: Analyzing trace with hash 1151184511, now seen corresponding path program 1 times [2022-11-19 07:28:38,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:28:38,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932317906] [2022-11-19 07:28:38,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:28:38,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:28:38,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:28:39,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:28:39,702 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:28:39,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932317906] [2022-11-19 07:28:39,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932317906] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:28:39,702 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:28:39,702 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-19 07:28:39,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138892476] [2022-11-19 07:28:39,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:28:39,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 07:28:39,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:28:39,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 07:28:39,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:28:39,708 INFO L87 Difference]: Start difference. First operand 5473 states and 7142 transitions. Second operand has 8 states, 8 states have (on average 9.625) internal successors, (77), 7 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) [2022-11-19 07:28:48,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:28:48,771 INFO L93 Difference]: Finished difference Result 5903 states and 7698 transitions. [2022-11-19 07:28:48,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-19 07:28:48,772 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 7 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 [2022-11-19 07:28:48,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:28:48,790 INFO L225 Difference]: With dead ends: 5903 [2022-11-19 07:28:48,791 INFO L226 Difference]: Without dead ends: 5898 [2022-11-19 07:28:48,792 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2022-11-19 07:28:48,794 INFO L413 NwaCegarLoop]: 2750 mSDtfsCounter, 14690 mSDsluCounter, 8147 mSDsCounter, 0 mSdLazyCounter, 13675 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14690 SdHoareTripleChecker+Valid, 10897 SdHoareTripleChecker+Invalid, 13734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 13675 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-11-19 07:28:48,794 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14690 Valid, 10897 Invalid, 13734 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [59 Valid, 13675 Invalid, 0 Unknown, 0 Unchecked, 8.3s Time] [2022-11-19 07:28:48,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5898 states. [2022-11-19 07:28:48,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5898 to 5473. [2022-11-19 07:28:49,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5473 states, 5454 states have (on average 1.3093142647598093) internal successors, (7141), 5472 states have internal predecessors, (7141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:28:49,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5473 states to 5473 states and 7141 transitions. [2022-11-19 07:28:49,023 INFO L78 Accepts]: Start accepts. Automaton has 5473 states and 7141 transitions. Word has length 77 [2022-11-19 07:28:49,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:28:49,026 INFO L495 AbstractCegarLoop]: Abstraction has 5473 states and 7141 transitions. [2022-11-19 07:28:49,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 7 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) [2022-11-19 07:28:49,027 INFO L276 IsEmpty]: Start isEmpty. Operand 5473 states and 7141 transitions. [2022-11-19 07:28:49,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-19 07:28:49,039 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:28:49,040 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] [2022-11-19 07:28:49,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 07:28:49,041 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-11-19 07:28:49,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:28:49,043 INFO L85 PathProgramCache]: Analyzing trace with hash 1331787270, now seen corresponding path program 1 times [2022-11-19 07:28:49,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:28:49,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029730832] [2022-11-19 07:28:49,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:28:49,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:28:49,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:28:49,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:28:49,323 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:28:49,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029730832] [2022-11-19 07:28:49,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029730832] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:28:49,323 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:28:49,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:28:49,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110255603] [2022-11-19 07:28:49,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:28:49,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:28:49,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:28:49,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:28:49,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:28:49,326 INFO L87 Difference]: Start difference. First operand 5473 states and 7141 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) [2022-11-19 07:28:53,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:28:53,415 INFO L93 Difference]: Finished difference Result 8988 states and 11707 transitions. [2022-11-19 07:28:53,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:28:53,416 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 [2022-11-19 07:28:53,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:28:53,437 INFO L225 Difference]: With dead ends: 8988 [2022-11-19 07:28:53,438 INFO L226 Difference]: Without dead ends: 5638 [2022-11-19 07:28:53,445 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-19 07:28:53,446 INFO L413 NwaCegarLoop]: 2163 mSDtfsCounter, 16549 mSDsluCounter, 598 mSDsCounter, 0 mSdLazyCounter, 3341 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16549 SdHoareTripleChecker+Valid, 2761 SdHoareTripleChecker+Invalid, 3381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 3341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-11-19 07:28:53,447 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16549 Valid, 2761 Invalid, 3381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 3341 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-11-19 07:28:53,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5638 states. [2022-11-19 07:28:53,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5638 to 5609. [2022-11-19 07:28:53,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5609 states, 5590 states have (on average 1.3178890876565295) internal successors, (7367), 5608 states have internal predecessors, (7367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:28:53,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5609 states to 5609 states and 7367 transitions. [2022-11-19 07:28:53,861 INFO L78 Accepts]: Start accepts. Automaton has 5609 states and 7367 transitions. Word has length 77 [2022-11-19 07:28:53,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:28:53,862 INFO L495 AbstractCegarLoop]: Abstraction has 5609 states and 7367 transitions. [2022-11-19 07:28:53,862 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) [2022-11-19 07:28:53,862 INFO L276 IsEmpty]: Start isEmpty. Operand 5609 states and 7367 transitions. [2022-11-19 07:28:53,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-19 07:28:53,872 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:28:53,873 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] [2022-11-19 07:28:53,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 07:28:53,877 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-11-19 07:28:53,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:28:53,878 INFO L85 PathProgramCache]: Analyzing trace with hash 1639149933, now seen corresponding path program 1 times [2022-11-19 07:28:53,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:28:53,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987680220] [2022-11-19 07:28:53,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:28:53,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:28:53,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:28:54,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:28:54,085 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:28:54,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987680220] [2022-11-19 07:28:54,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987680220] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:28:54,085 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:28:54,085 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:28:54,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279978549] [2022-11-19 07:28:54,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:28:54,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:28:54,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:28:54,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:28:54,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:28:54,089 INFO L87 Difference]: Start difference. First operand 5609 states and 7367 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 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) [2022-11-19 07:28:58,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:28:58,136 INFO L93 Difference]: Finished difference Result 10736 states and 14137 transitions. [2022-11-19 07:28:58,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:28:58,137 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 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 [2022-11-19 07:28:58,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:28:58,162 INFO L225 Difference]: With dead ends: 10736 [2022-11-19 07:28:58,162 INFO L226 Difference]: Without dead ends: 7330 [2022-11-19 07:28:58,171 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-19 07:28:58,172 INFO L413 NwaCegarLoop]: 2037 mSDtfsCounter, 15813 mSDsluCounter, 575 mSDsCounter, 0 mSdLazyCounter, 3184 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15813 SdHoareTripleChecker+Valid, 2612 SdHoareTripleChecker+Invalid, 3307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 3184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-11-19 07:28:58,173 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15813 Valid, 2612 Invalid, 3307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 3184 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-11-19 07:28:58,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7330 states. [2022-11-19 07:28:58,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7330 to 7304. [2022-11-19 07:28:58,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7304 states, 7285 states have (on average 1.3013040494166095) internal successors, (9480), 7303 states have internal predecessors, (9480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:28:58,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7304 states to 7304 states and 9480 transitions. [2022-11-19 07:28:58,764 INFO L78 Accepts]: Start accepts. Automaton has 7304 states and 9480 transitions. Word has length 78 [2022-11-19 07:28:58,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:28:58,765 INFO L495 AbstractCegarLoop]: Abstraction has 7304 states and 9480 transitions. [2022-11-19 07:28:58,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 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) [2022-11-19 07:28:58,766 INFO L276 IsEmpty]: Start isEmpty. Operand 7304 states and 9480 transitions. [2022-11-19 07:28:58,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-19 07:28:58,781 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:28:58,782 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] [2022-11-19 07:28:58,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 07:28:58,782 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-11-19 07:28:58,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:28:58,783 INFO L85 PathProgramCache]: Analyzing trace with hash 865086873, now seen corresponding path program 1 times [2022-11-19 07:28:58,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:28:58,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276275846] [2022-11-19 07:28:58,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:28:58,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:28:58,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:28:59,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:28:59,938 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:28:59,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276275846] [2022-11-19 07:28:59,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276275846] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:28:59,939 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:28:59,939 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-19 07:28:59,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665136186] [2022-11-19 07:28:59,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:28:59,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-19 07:28:59,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:28:59,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-19 07:28:59,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-19 07:28:59,941 INFO L87 Difference]: Start difference. First operand 7304 states and 9480 transitions. Second operand has 12 states, 12 states have (on average 6.5) internal successors, (78), 11 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) [2022-11-19 07:29:06,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:29:06,188 INFO L93 Difference]: Finished difference Result 15534 states and 21066 transitions. [2022-11-19 07:29:06,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-19 07:29:06,189 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.5) internal successors, (78), 11 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 [2022-11-19 07:29:06,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:29:06,246 INFO L225 Difference]: With dead ends: 15534 [2022-11-19 07:29:06,246 INFO L226 Difference]: Without dead ends: 14954 [2022-11-19 07:29:06,254 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=155, Invalid=445, Unknown=0, NotChecked=0, Total=600 [2022-11-19 07:29:06,255 INFO L413 NwaCegarLoop]: 4827 mSDtfsCounter, 27076 mSDsluCounter, 22468 mSDsCounter, 0 mSdLazyCounter, 4074 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27076 SdHoareTripleChecker+Valid, 27295 SdHoareTripleChecker+Invalid, 4109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 4074 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-19 07:29:06,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27076 Valid, 27295 Invalid, 4109 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [35 Valid, 4074 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-11-19 07:29:06,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14954 states. [2022-11-19 07:29:07,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14954 to 7238. [2022-11-19 07:29:07,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7238 states, 7220 states have (on average 1.300831024930748) internal successors, (9392), 7237 states have internal predecessors, (9392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:29:07,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7238 states to 7238 states and 9392 transitions. [2022-11-19 07:29:07,249 INFO L78 Accepts]: Start accepts. Automaton has 7238 states and 9392 transitions. Word has length 78 [2022-11-19 07:29:07,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:29:07,250 INFO L495 AbstractCegarLoop]: Abstraction has 7238 states and 9392 transitions. [2022-11-19 07:29:07,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.5) internal successors, (78), 11 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) [2022-11-19 07:29:07,251 INFO L276 IsEmpty]: Start isEmpty. Operand 7238 states and 9392 transitions. [2022-11-19 07:29:07,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-19 07:29:07,265 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:29:07,265 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] [2022-11-19 07:29:07,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 07:29:07,266 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-11-19 07:29:07,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:29:07,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1161754745, now seen corresponding path program 1 times [2022-11-19 07:29:07,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:29:07,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137706578] [2022-11-19 07:29:07,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:29:07,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:29:07,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:29:07,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:29:07,928 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:29:07,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137706578] [2022-11-19 07:29:07,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137706578] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:29:07,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:29:07,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-19 07:29:07,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709518645] [2022-11-19 07:29:07,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:29:07,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-19 07:29:07,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:29:07,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-19 07:29:07,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-19 07:29:07,932 INFO L87 Difference]: Start difference. First operand 7238 states and 9392 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 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) [2022-11-19 07:29:21,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:29:21,977 INFO L93 Difference]: Finished difference Result 11088 states and 14702 transitions. [2022-11-19 07:29:21,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-19 07:29:21,977 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 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 [2022-11-19 07:29:21,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:29:22,002 INFO L225 Difference]: With dead ends: 11088 [2022-11-19 07:29:22,003 INFO L226 Difference]: Without dead ends: 10425 [2022-11-19 07:29:22,008 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=189, Invalid=513, Unknown=0, NotChecked=0, Total=702 [2022-11-19 07:29:22,009 INFO L413 NwaCegarLoop]: 2170 mSDtfsCounter, 16693 mSDsluCounter, 9127 mSDsCounter, 0 mSdLazyCounter, 14491 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16693 SdHoareTripleChecker+Valid, 11297 SdHoareTripleChecker+Invalid, 14499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 14491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time [2022-11-19 07:29:22,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16693 Valid, 11297 Invalid, 14499 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [8 Valid, 14491 Invalid, 0 Unknown, 0 Unchecked, 11.3s Time] [2022-11-19 07:29:22,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10425 states. [2022-11-19 07:29:22,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10425 to 7245. [2022-11-19 07:29:22,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7245 states, 7227 states have (on average 1.3005396430053964) internal successors, (9399), 7244 states have internal predecessors, (9399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:29:22,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7245 states to 7245 states and 9399 transitions. [2022-11-19 07:29:22,894 INFO L78 Accepts]: Start accepts. Automaton has 7245 states and 9399 transitions. Word has length 79 [2022-11-19 07:29:22,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:29:22,895 INFO L495 AbstractCegarLoop]: Abstraction has 7245 states and 9399 transitions. [2022-11-19 07:29:22,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 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) [2022-11-19 07:29:22,895 INFO L276 IsEmpty]: Start isEmpty. Operand 7245 states and 9399 transitions. [2022-11-19 07:29:22,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-19 07:29:22,906 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:29:22,907 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] [2022-11-19 07:29:22,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 07:29:22,907 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-11-19 07:29:22,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:29:22,908 INFO L85 PathProgramCache]: Analyzing trace with hash -1561427822, now seen corresponding path program 1 times [2022-11-19 07:29:22,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:29:22,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204555995] [2022-11-19 07:29:22,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:29:22,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:29:22,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:29:23,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:29:23,070 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:29:23,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204555995] [2022-11-19 07:29:23,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204555995] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:29:23,070 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:29:23,071 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:29:23,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833996824] [2022-11-19 07:29:23,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:29:23,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:29:23,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:29:23,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:29:23,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:29:23,072 INFO L87 Difference]: Start difference. First operand 7245 states and 9399 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) [2022-11-19 07:29:27,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:29:27,957 INFO L93 Difference]: Finished difference Result 13868 states and 18028 transitions. [2022-11-19 07:29:27,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:29:27,958 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 [2022-11-19 07:29:27,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:29:27,982 INFO L225 Difference]: With dead ends: 13868 [2022-11-19 07:29:27,983 INFO L226 Difference]: Without dead ends: 9396 [2022-11-19 07:29:27,991 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-19 07:29:27,992 INFO L413 NwaCegarLoop]: 1802 mSDtfsCounter, 14254 mSDsluCounter, 623 mSDsCounter, 0 mSdLazyCounter, 2857 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14254 SdHoareTripleChecker+Valid, 2425 SdHoareTripleChecker+Invalid, 2909 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 2857 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-11-19 07:29:27,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14254 Valid, 2425 Invalid, 2909 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 2857 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-11-19 07:29:28,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9396 states. [2022-11-19 07:29:29,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9396 to 9376. [2022-11-19 07:29:29,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9376 states, 9358 states have (on average 1.299316093182304) internal successors, (12159), 9375 states have internal predecessors, (12159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:29:29,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9376 states to 9376 states and 12159 transitions. [2022-11-19 07:29:29,169 INFO L78 Accepts]: Start accepts. Automaton has 9376 states and 12159 transitions. Word has length 79 [2022-11-19 07:29:29,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:29:29,170 INFO L495 AbstractCegarLoop]: Abstraction has 9376 states and 12159 transitions. [2022-11-19 07:29:29,170 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) [2022-11-19 07:29:29,170 INFO L276 IsEmpty]: Start isEmpty. Operand 9376 states and 12159 transitions. [2022-11-19 07:29:29,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-19 07:29:29,187 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:29:29,187 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] [2022-11-19 07:29:29,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-19 07:29:29,193 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-11-19 07:29:29,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:29:29,195 INFO L85 PathProgramCache]: Analyzing trace with hash -615366141, now seen corresponding path program 1 times [2022-11-19 07:29:29,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:29:29,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564187636] [2022-11-19 07:29:29,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:29:29,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:29:29,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:29:29,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:29:29,388 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:29:29,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564187636] [2022-11-19 07:29:29,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564187636] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:29:29,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:29:29,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:29:29,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814853553] [2022-11-19 07:29:29,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:29:29,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:29:29,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:29:29,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:29:29,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:29:29,390 INFO L87 Difference]: Start difference. First operand 9376 states and 12159 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) [2022-11-19 07:29:34,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:29:34,723 INFO L93 Difference]: Finished difference Result 20778 states and 27272 transitions. [2022-11-19 07:29:34,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:29:34,724 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 [2022-11-19 07:29:34,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:29:34,746 INFO L225 Difference]: With dead ends: 20778 [2022-11-19 07:29:34,746 INFO L226 Difference]: Without dead ends: 13645 [2022-11-19 07:29:34,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-19 07:29:34,757 INFO L413 NwaCegarLoop]: 1867 mSDtfsCounter, 14431 mSDsluCounter, 730 mSDsCounter, 0 mSdLazyCounter, 2795 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14431 SdHoareTripleChecker+Valid, 2597 SdHoareTripleChecker+Invalid, 2839 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 2795 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:29:34,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14431 Valid, 2597 Invalid, 2839 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 2795 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-11-19 07:29:34,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13645 states. [2022-11-19 07:29:36,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13645 to 13621. [2022-11-19 07:29:36,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13621 states, 13603 states have (on average 1.2975814158641477) internal successors, (17651), 13620 states have internal predecessors, (17651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:29:36,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13621 states to 13621 states and 17651 transitions. [2022-11-19 07:29:36,470 INFO L78 Accepts]: Start accepts. Automaton has 13621 states and 17651 transitions. Word has length 79 [2022-11-19 07:29:36,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:29:36,470 INFO L495 AbstractCegarLoop]: Abstraction has 13621 states and 17651 transitions. [2022-11-19 07:29:36,471 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) [2022-11-19 07:29:36,471 INFO L276 IsEmpty]: Start isEmpty. Operand 13621 states and 17651 transitions. [2022-11-19 07:29:36,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-19 07:29:36,484 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:29:36,485 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] [2022-11-19 07:29:36,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-19 07:29:36,485 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-11-19 07:29:36,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:29:36,486 INFO L85 PathProgramCache]: Analyzing trace with hash 1945118073, now seen corresponding path program 1 times [2022-11-19 07:29:36,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:29:36,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035313425] [2022-11-19 07:29:36,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:29:36,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:29:36,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:29:36,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:29:36,585 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:29:36,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035313425] [2022-11-19 07:29:36,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035313425] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:29:36,585 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:29:36,586 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:29:36,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377849669] [2022-11-19 07:29:36,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:29:36,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:29:36,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:29:36,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:29:36,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:29:36,587 INFO L87 Difference]: Start difference. First operand 13621 states and 17651 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 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) [2022-11-19 07:29:39,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:29:39,685 INFO L93 Difference]: Finished difference Result 26836 states and 34975 transitions. [2022-11-19 07:29:39,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:29:39,685 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 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 [2022-11-19 07:29:39,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:29:39,703 INFO L225 Difference]: With dead ends: 26836 [2022-11-19 07:29:39,703 INFO L226 Difference]: Without dead ends: 16508 [2022-11-19 07:29:39,715 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 [2022-11-19 07:29:39,715 INFO L413 NwaCegarLoop]: 3556 mSDtfsCounter, 3618 mSDsluCounter, 929 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3618 SdHoareTripleChecker+Valid, 4485 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-19 07:29:39,716 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3618 Valid, 4485 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-19 07:29:39,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16508 states. [2022-11-19 07:29:41,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16508 to 16481. [2022-11-19 07:29:41,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16481 states, 16463 states have (on average 1.2894369191520378) internal successors, (21228), 16480 states have internal predecessors, (21228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:29:41,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16481 states to 16481 states and 21228 transitions. [2022-11-19 07:29:41,995 INFO L78 Accepts]: Start accepts. Automaton has 16481 states and 21228 transitions. Word has length 80 [2022-11-19 07:29:41,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:29:41,995 INFO L495 AbstractCegarLoop]: Abstraction has 16481 states and 21228 transitions. [2022-11-19 07:29:41,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 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) [2022-11-19 07:29:41,996 INFO L276 IsEmpty]: Start isEmpty. Operand 16481 states and 21228 transitions. [2022-11-19 07:29:42,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-19 07:29:42,008 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:29:42,008 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] [2022-11-19 07:29:42,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-19 07:29:42,009 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-11-19 07:29:42,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:29:42,009 INFO L85 PathProgramCache]: Analyzing trace with hash -1507795412, now seen corresponding path program 1 times [2022-11-19 07:29:42,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:29:42,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537291787] [2022-11-19 07:29:42,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:29:42,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:29:42,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:29:42,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:29:42,835 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:29:42,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537291787] [2022-11-19 07:29:42,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537291787] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:29:42,835 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:29:42,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-19 07:29:42,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223106211] [2022-11-19 07:29:42,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:29:42,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-19 07:29:42,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:29:42,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-19 07:29:42,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-19 07:29:42,837 INFO L87 Difference]: Start difference. First operand 16481 states and 21228 transitions. Second operand has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 11 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) [2022-11-19 07:29:52,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:29:52,104 INFO L93 Difference]: Finished difference Result 24808 states and 32871 transitions. [2022-11-19 07:29:52,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-19 07:29:52,104 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 11 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 [2022-11-19 07:29:52,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:29:52,137 INFO L225 Difference]: With dead ends: 24808 [2022-11-19 07:29:52,137 INFO L226 Difference]: Without dead ends: 24804 [2022-11-19 07:29:52,142 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=152, Invalid=448, Unknown=0, NotChecked=0, Total=600 [2022-11-19 07:29:52,143 INFO L413 NwaCegarLoop]: 3665 mSDtfsCounter, 21640 mSDsluCounter, 18421 mSDsCounter, 0 mSdLazyCounter, 3781 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21640 SdHoareTripleChecker+Valid, 22086 SdHoareTripleChecker+Invalid, 3805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 3781 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:29:52,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21640 Valid, 22086 Invalid, 3805 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [24 Valid, 3781 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-11-19 07:29:52,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24804 states. [2022-11-19 07:29:54,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24804 to 16477. [2022-11-19 07:29:54,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16477 states, 16460 states have (on average 1.2894289185905226) internal successors, (21224), 16476 states have internal predecessors, (21224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:29:55,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16477 states to 16477 states and 21224 transitions. [2022-11-19 07:29:55,010 INFO L78 Accepts]: Start accepts. Automaton has 16477 states and 21224 transitions. Word has length 80 [2022-11-19 07:29:55,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:29:55,010 INFO L495 AbstractCegarLoop]: Abstraction has 16477 states and 21224 transitions. [2022-11-19 07:29:55,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 11 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) [2022-11-19 07:29:55,010 INFO L276 IsEmpty]: Start isEmpty. Operand 16477 states and 21224 transitions. [2022-11-19 07:29:55,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-19 07:29:55,022 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:29:55,022 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] [2022-11-19 07:29:55,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-19 07:29:55,023 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-11-19 07:29:55,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:29:55,023 INFO L85 PathProgramCache]: Analyzing trace with hash 465400969, now seen corresponding path program 1 times [2022-11-19 07:29:55,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:29:55,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187330963] [2022-11-19 07:29:55,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:29:55,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:29:55,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:29:55,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:29:55,422 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:29:55,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187330963] [2022-11-19 07:29:55,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187330963] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:29:55,422 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:29:55,423 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-19 07:29:55,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393624753] [2022-11-19 07:29:55,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:29:55,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 07:29:55,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:29:55,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 07:29:55,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:29:55,425 INFO L87 Difference]: Start difference. First operand 16477 states and 21224 transitions. Second operand has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 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) [2022-11-19 07:30:05,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:30:05,659 INFO L93 Difference]: Finished difference Result 20718 states and 26757 transitions. [2022-11-19 07:30:05,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-19 07:30:05,660 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 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 [2022-11-19 07:30:05,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:30:05,684 INFO L225 Difference]: With dead ends: 20718 [2022-11-19 07:30:05,684 INFO L226 Difference]: Without dead ends: 20710 [2022-11-19 07:30:05,688 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2022-11-19 07:30:05,688 INFO L413 NwaCegarLoop]: 1799 mSDtfsCounter, 14418 mSDsluCounter, 5623 mSDsCounter, 0 mSdLazyCounter, 8455 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14418 SdHoareTripleChecker+Valid, 7422 SdHoareTripleChecker+Invalid, 8494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 8455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-11-19 07:30:05,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14418 Valid, 7422 Invalid, 8494 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [39 Valid, 8455 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2022-11-19 07:30:05,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20710 states. [2022-11-19 07:30:08,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20710 to 16477. [2022-11-19 07:30:08,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16477 states, 16460 states have (on average 1.2893681652490887) internal successors, (21223), 16476 states have internal predecessors, (21223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:30:08,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16477 states to 16477 states and 21223 transitions. [2022-11-19 07:30:08,625 INFO L78 Accepts]: Start accepts. Automaton has 16477 states and 21223 transitions. Word has length 80 [2022-11-19 07:30:08,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:30:08,625 INFO L495 AbstractCegarLoop]: Abstraction has 16477 states and 21223 transitions. [2022-11-19 07:30:08,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 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) [2022-11-19 07:30:08,626 INFO L276 IsEmpty]: Start isEmpty. Operand 16477 states and 21223 transitions. [2022-11-19 07:30:08,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-19 07:30:08,636 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:30:08,637 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:30:08,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-19 07:30:08,637 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-11-19 07:30:08,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:30:08,637 INFO L85 PathProgramCache]: Analyzing trace with hash -195949566, now seen corresponding path program 1 times [2022-11-19 07:30:08,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:30:08,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590948780] [2022-11-19 07:30:08,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:30:08,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:30:08,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:30:09,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:30:09,076 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:30:09,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590948780] [2022-11-19 07:30:09,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590948780] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:30:09,076 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:30:09,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-19 07:30:09,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482953116] [2022-11-19 07:30:09,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:30:09,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-19 07:30:09,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:30:09,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-19 07:30:09,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-19 07:30:09,078 INFO L87 Difference]: Start difference. First operand 16477 states and 21223 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 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) [2022-11-19 07:30:21,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:30:21,535 INFO L93 Difference]: Finished difference Result 21196 states and 27918 transitions. [2022-11-19 07:30:21,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-19 07:30:21,536 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 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 [2022-11-19 07:30:21,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:30:21,556 INFO L225 Difference]: With dead ends: 21196 [2022-11-19 07:30:21,556 INFO L226 Difference]: Without dead ends: 17933 [2022-11-19 07:30:21,560 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=142, Invalid=364, Unknown=0, NotChecked=0, Total=506 [2022-11-19 07:30:21,561 INFO L413 NwaCegarLoop]: 1780 mSDtfsCounter, 13645 mSDsluCounter, 7473 mSDsCounter, 0 mSdLazyCounter, 11267 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13645 SdHoareTripleChecker+Valid, 9253 SdHoareTripleChecker+Invalid, 11273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 11267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-11-19 07:30:21,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13645 Valid, 9253 Invalid, 11273 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6 Valid, 11267 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2022-11-19 07:30:21,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17933 states. [2022-11-19 07:30:24,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17933 to 16230. [2022-11-19 07:30:24,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16230 states, 16213 states have (on average 1.2900758650465676) internal successors, (20916), 16229 states have internal predecessors, (20916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:30:24,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16230 states to 16230 states and 20916 transitions. [2022-11-19 07:30:24,416 INFO L78 Accepts]: Start accepts. Automaton has 16230 states and 20916 transitions. Word has length 81 [2022-11-19 07:30:24,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:30:24,416 INFO L495 AbstractCegarLoop]: Abstraction has 16230 states and 20916 transitions. [2022-11-19 07:30:24,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 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) [2022-11-19 07:30:24,417 INFO L276 IsEmpty]: Start isEmpty. Operand 16230 states and 20916 transitions. [2022-11-19 07:30:24,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-19 07:30:24,427 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:30:24,428 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] [2022-11-19 07:30:24,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-19 07:30:24,428 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-11-19 07:30:24,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:30:24,428 INFO L85 PathProgramCache]: Analyzing trace with hash 544903916, now seen corresponding path program 1 times [2022-11-19 07:30:24,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:30:24,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447008144] [2022-11-19 07:30:24,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:30:24,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:30:24,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:30:25,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:30:25,148 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:30:25,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447008144] [2022-11-19 07:30:25,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447008144] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:30:25,149 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:30:25,149 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-19 07:30:25,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163103911] [2022-11-19 07:30:25,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:30:25,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-19 07:30:25,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:30:25,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-19 07:30:25,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-19 07:30:25,150 INFO L87 Difference]: Start difference. First operand 16230 states and 20916 transitions. Second operand has 12 states, 12 states have (on average 6.75) internal successors, (81), 11 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) [2022-11-19 07:30:37,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:30:37,254 INFO L93 Difference]: Finished difference Result 29572 states and 39557 transitions. [2022-11-19 07:30:37,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-19 07:30:37,254 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.75) internal successors, (81), 11 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 [2022-11-19 07:30:37,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:30:37,295 INFO L225 Difference]: With dead ends: 29572 [2022-11-19 07:30:37,295 INFO L226 Difference]: Without dead ends: 29561 [2022-11-19 07:30:37,303 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=152, Invalid=448, Unknown=0, NotChecked=0, Total=600 [2022-11-19 07:30:37,304 INFO L413 NwaCegarLoop]: 3963 mSDtfsCounter, 18802 mSDsluCounter, 22253 mSDsCounter, 0 mSdLazyCounter, 3738 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18802 SdHoareTripleChecker+Valid, 26216 SdHoareTripleChecker+Invalid, 3773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 3738 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:30:37,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18802 Valid, 26216 Invalid, 3773 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [35 Valid, 3738 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-11-19 07:30:37,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29561 states. [2022-11-19 07:30:40,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29561 to 16224. [2022-11-19 07:30:40,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16224 states, 16207 states have (on average 1.2901215524156229) internal successors, (20909), 16223 states have internal predecessors, (20909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:30:40,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16224 states to 16224 states and 20909 transitions. [2022-11-19 07:30:40,542 INFO L78 Accepts]: Start accepts. Automaton has 16224 states and 20909 transitions. Word has length 81 [2022-11-19 07:30:40,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:30:40,543 INFO L495 AbstractCegarLoop]: Abstraction has 16224 states and 20909 transitions. [2022-11-19 07:30:40,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.75) internal successors, (81), 11 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) [2022-11-19 07:30:40,543 INFO L276 IsEmpty]: Start isEmpty. Operand 16224 states and 20909 transitions. [2022-11-19 07:30:40,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-19 07:30:40,555 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:30:40,556 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] [2022-11-19 07:30:40,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-19 07:30:40,556 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-11-19 07:30:40,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:30:40,556 INFO L85 PathProgramCache]: Analyzing trace with hash -15895603, now seen corresponding path program 1 times [2022-11-19 07:30:40,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:30:40,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966751196] [2022-11-19 07:30:40,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:30:40,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:30:40,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:30:40,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:30:40,985 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:30:40,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966751196] [2022-11-19 07:30:40,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966751196] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:30:40,985 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:30:40,986 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-19 07:30:40,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264804164] [2022-11-19 07:30:40,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:30:40,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-19 07:30:40,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:30:40,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-19 07:30:40,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-11-19 07:30:40,987 INFO L87 Difference]: Start difference. First operand 16224 states and 20909 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 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) [2022-11-19 07:30:56,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:30:56,409 INFO L93 Difference]: Finished difference Result 30351 states and 40375 transitions. [2022-11-19 07:30:56,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-19 07:30:56,411 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 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 [2022-11-19 07:30:56,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:30:56,461 INFO L225 Difference]: With dead ends: 30351 [2022-11-19 07:30:56,462 INFO L226 Difference]: Without dead ends: 27292 [2022-11-19 07:30:56,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=158, Invalid=442, Unknown=0, NotChecked=0, Total=600 [2022-11-19 07:30:56,471 INFO L413 NwaCegarLoop]: 2005 mSDtfsCounter, 12506 mSDsluCounter, 7146 mSDsCounter, 0 mSdLazyCounter, 10014 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12506 SdHoareTripleChecker+Valid, 9151 SdHoareTripleChecker+Invalid, 10070 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 10014 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:30:56,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12506 Valid, 9151 Invalid, 10070 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [56 Valid, 10014 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2022-11-19 07:30:56,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27292 states. [2022-11-19 07:30:59,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27292 to 16179. [2022-11-19 07:30:59,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16179 states, 16162 states have (on average 1.2900631110011138) internal successors, (20850), 16178 states have internal predecessors, (20850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:30:59,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16179 states to 16179 states and 20850 transitions. [2022-11-19 07:30:59,900 INFO L78 Accepts]: Start accepts. Automaton has 16179 states and 20850 transitions. Word has length 81 [2022-11-19 07:30:59,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:30:59,901 INFO L495 AbstractCegarLoop]: Abstraction has 16179 states and 20850 transitions. [2022-11-19 07:30:59,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 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) [2022-11-19 07:30:59,901 INFO L276 IsEmpty]: Start isEmpty. Operand 16179 states and 20850 transitions. [2022-11-19 07:30:59,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-19 07:30:59,909 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:30:59,910 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] [2022-11-19 07:30:59,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-19 07:30:59,910 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-11-19 07:30:59,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:30:59,911 INFO L85 PathProgramCache]: Analyzing trace with hash -1253372965, now seen corresponding path program 1 times [2022-11-19 07:30:59,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:30:59,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927471065] [2022-11-19 07:30:59,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:30:59,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:30:59,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:31:00,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:31:00,280 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:31:00,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927471065] [2022-11-19 07:31:00,280 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927471065] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:31:00,281 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:31:00,281 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-19 07:31:00,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711704914] [2022-11-19 07:31:00,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:31:00,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 07:31:00,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:31:00,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 07:31:00,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:31:00,282 INFO L87 Difference]: Start difference. First operand 16179 states and 20850 transitions. Second operand has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:31:13,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:31:13,653 INFO L93 Difference]: Finished difference Result 22694 states and 29816 transitions. [2022-11-19 07:31:13,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-19 07:31:13,654 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2022-11-19 07:31:13,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:31:13,685 INFO L225 Difference]: With dead ends: 22694 [2022-11-19 07:31:13,686 INFO L226 Difference]: Without dead ends: 21695 [2022-11-19 07:31:13,690 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2022-11-19 07:31:13,691 INFO L413 NwaCegarLoop]: 1871 mSDtfsCounter, 12010 mSDsluCounter, 6872 mSDsCounter, 0 mSdLazyCounter, 9661 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12010 SdHoareTripleChecker+Valid, 8743 SdHoareTripleChecker+Invalid, 9689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 9661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-11-19 07:31:13,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12010 Valid, 8743 Invalid, 9689 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [28 Valid, 9661 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2022-11-19 07:31:13,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21695 states. [2022-11-19 07:31:17,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21695 to 16179. [2022-11-19 07:31:17,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16179 states, 16162 states have (on average 1.29000123747061) internal successors, (20849), 16178 states have internal predecessors, (20849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:31:17,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16179 states to 16179 states and 20849 transitions. [2022-11-19 07:31:17,132 INFO L78 Accepts]: Start accepts. Automaton has 16179 states and 20849 transitions. Word has length 82 [2022-11-19 07:31:17,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:31:17,133 INFO L495 AbstractCegarLoop]: Abstraction has 16179 states and 20849 transitions. [2022-11-19 07:31:17,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:31:17,133 INFO L276 IsEmpty]: Start isEmpty. Operand 16179 states and 20849 transitions. [2022-11-19 07:31:17,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-19 07:31:17,145 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:31:17,145 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] [2022-11-19 07:31:17,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-19 07:31:17,145 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-11-19 07:31:17,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:31:17,146 INFO L85 PathProgramCache]: Analyzing trace with hash 152682710, now seen corresponding path program 1 times [2022-11-19 07:31:17,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:31:17,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663042898] [2022-11-19 07:31:17,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:31:17,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:31:17,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:31:17,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:31:17,494 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:31:17,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663042898] [2022-11-19 07:31:17,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663042898] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:31:17,496 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:31:17,496 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-19 07:31:17,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783643997] [2022-11-19 07:31:17,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:31:17,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 07:31:17,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:31:17,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 07:31:17,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:31:17,498 INFO L87 Difference]: Start difference. First operand 16179 states and 20849 transitions. Second operand has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:31:30,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:31:30,161 INFO L93 Difference]: Finished difference Result 23430 states and 30722 transitions. [2022-11-19 07:31:30,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-19 07:31:30,161 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2022-11-19 07:31:30,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:31:30,184 INFO L225 Difference]: With dead ends: 23430 [2022-11-19 07:31:30,184 INFO L226 Difference]: Without dead ends: 21900 [2022-11-19 07:31:30,189 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2022-11-19 07:31:30,190 INFO L413 NwaCegarLoop]: 1863 mSDtfsCounter, 14553 mSDsluCounter, 5768 mSDsCounter, 0 mSdLazyCounter, 8699 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14553 SdHoareTripleChecker+Valid, 7631 SdHoareTripleChecker+Invalid, 8738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 8699 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-11-19 07:31:30,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14553 Valid, 7631 Invalid, 8738 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [39 Valid, 8699 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2022-11-19 07:31:30,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21900 states. [2022-11-19 07:31:33,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21900 to 16179. [2022-11-19 07:31:33,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16179 states, 16162 states have (on average 1.2899393639401064) internal successors, (20848), 16178 states have internal predecessors, (20848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:31:33,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16179 states to 16179 states and 20848 transitions. [2022-11-19 07:31:33,776 INFO L78 Accepts]: Start accepts. Automaton has 16179 states and 20848 transitions. Word has length 82 [2022-11-19 07:31:33,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:31:33,776 INFO L495 AbstractCegarLoop]: Abstraction has 16179 states and 20848 transitions. [2022-11-19 07:31:33,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:31:33,776 INFO L276 IsEmpty]: Start isEmpty. Operand 16179 states and 20848 transitions. [2022-11-19 07:31:33,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-19 07:31:33,790 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:31:33,790 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:31:33,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-19 07:31:33,791 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-11-19 07:31:33,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:31:33,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1849994643, now seen corresponding path program 1 times [2022-11-19 07:31:33,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:31:33,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443248724] [2022-11-19 07:31:33,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:31:33,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:31:33,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:31:34,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:31:34,115 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:31:34,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443248724] [2022-11-19 07:31:34,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443248724] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:31:34,116 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:31:34,116 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-19 07:31:34,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219412238] [2022-11-19 07:31:34,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:31:34,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 07:31:34,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:31:34,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 07:31:34,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:31:34,118 INFO L87 Difference]: Start difference. First operand 16179 states and 20848 transitions. Second operand has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:31:49,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:31:49,156 INFO L93 Difference]: Finished difference Result 26337 states and 34732 transitions. [2022-11-19 07:31:49,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-19 07:31:49,157 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2022-11-19 07:31:49,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:31:49,188 INFO L225 Difference]: With dead ends: 26337 [2022-11-19 07:31:49,188 INFO L226 Difference]: Without dead ends: 24743 [2022-11-19 07:31:49,194 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2022-11-19 07:31:49,194 INFO L413 NwaCegarLoop]: 1972 mSDtfsCounter, 8383 mSDsluCounter, 6670 mSDsCounter, 0 mSdLazyCounter, 10102 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8383 SdHoareTripleChecker+Valid, 8642 SdHoareTripleChecker+Invalid, 10157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 10102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:31:49,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8383 Valid, 8642 Invalid, 10157 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [55 Valid, 10102 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2022-11-19 07:31:49,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24743 states. [2022-11-19 07:31:52,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24743 to 16179. [2022-11-19 07:31:52,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16179 states, 16162 states have (on average 1.2898774904096029) internal successors, (20847), 16178 states have internal predecessors, (20847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:31:52,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16179 states to 16179 states and 20847 transitions. [2022-11-19 07:31:52,914 INFO L78 Accepts]: Start accepts. Automaton has 16179 states and 20847 transitions. Word has length 82 [2022-11-19 07:31:52,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:31:52,915 INFO L495 AbstractCegarLoop]: Abstraction has 16179 states and 20847 transitions. [2022-11-19 07:31:52,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:31:52,915 INFO L276 IsEmpty]: Start isEmpty. Operand 16179 states and 20847 transitions. [2022-11-19 07:31:52,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-19 07:31:52,926 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:31:52,926 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] [2022-11-19 07:31:52,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-19 07:31:52,926 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-11-19 07:31:52,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:31:52,927 INFO L85 PathProgramCache]: Analyzing trace with hash -1794558322, now seen corresponding path program 1 times [2022-11-19 07:31:52,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:31:52,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364879986] [2022-11-19 07:31:52,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:31:52,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:31:52,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:31:53,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:31:53,281 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:31:53,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364879986] [2022-11-19 07:31:53,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364879986] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:31:53,282 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:31:53,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-19 07:31:53,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825061270] [2022-11-19 07:31:53,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:31:53,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 07:31:53,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:31:53,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 07:31:53,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:31:53,284 INFO L87 Difference]: Start difference. First operand 16179 states and 20847 transitions. Second operand has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:32:08,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:32:08,142 INFO L93 Difference]: Finished difference Result 26469 states and 34936 transitions. [2022-11-19 07:32:08,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-19 07:32:08,143 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2022-11-19 07:32:08,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:32:08,167 INFO L225 Difference]: With dead ends: 26469 [2022-11-19 07:32:08,167 INFO L226 Difference]: Without dead ends: 24445 [2022-11-19 07:32:08,172 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2022-11-19 07:32:08,172 INFO L413 NwaCegarLoop]: 1945 mSDtfsCounter, 14744 mSDsluCounter, 5989 mSDsCounter, 0 mSdLazyCounter, 9283 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14744 SdHoareTripleChecker+Valid, 7934 SdHoareTripleChecker+Invalid, 9344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 9283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-11-19 07:32:08,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14744 Valid, 7934 Invalid, 9344 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [61 Valid, 9283 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2022-11-19 07:32:08,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24445 states. [2022-11-19 07:32:11,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24445 to 16179. [2022-11-19 07:32:11,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16179 states, 16162 states have (on average 1.289815616879099) internal successors, (20846), 16178 states have internal predecessors, (20846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:32:11,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16179 states to 16179 states and 20846 transitions. [2022-11-19 07:32:11,813 INFO L78 Accepts]: Start accepts. Automaton has 16179 states and 20846 transitions. Word has length 82 [2022-11-19 07:32:11,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:32:11,813 INFO L495 AbstractCegarLoop]: Abstraction has 16179 states and 20846 transitions. [2022-11-19 07:32:11,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:32:11,814 INFO L276 IsEmpty]: Start isEmpty. Operand 16179 states and 20846 transitions. [2022-11-19 07:32:11,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-19 07:32:11,824 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:32:11,825 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] [2022-11-19 07:32:11,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-19 07:32:11,825 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-11-19 07:32:11,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:32:11,826 INFO L85 PathProgramCache]: Analyzing trace with hash -994731141, now seen corresponding path program 1 times [2022-11-19 07:32:11,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:32:11,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565589470] [2022-11-19 07:32:11,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:32:11,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:32:11,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:32:12,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:32:12,172 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:32:12,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565589470] [2022-11-19 07:32:12,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565589470] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:32:12,172 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:32:12,172 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-19 07:32:12,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275763582] [2022-11-19 07:32:12,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:32:12,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 07:32:12,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:32:12,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 07:32:12,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:32:12,175 INFO L87 Difference]: Start difference. First operand 16179 states and 20846 transitions. Second operand has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:32:25,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:32:25,531 INFO L93 Difference]: Finished difference Result 24398 states and 32100 transitions. [2022-11-19 07:32:25,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-19 07:32:25,532 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2022-11-19 07:32:25,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:32:25,556 INFO L225 Difference]: With dead ends: 24398 [2022-11-19 07:32:25,557 INFO L226 Difference]: Without dead ends: 22404 [2022-11-19 07:32:25,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2022-11-19 07:32:25,564 INFO L413 NwaCegarLoop]: 1907 mSDtfsCounter, 14371 mSDsluCounter, 5920 mSDsCounter, 0 mSdLazyCounter, 8804 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14371 SdHoareTripleChecker+Valid, 7827 SdHoareTripleChecker+Invalid, 8843 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 8804 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-11-19 07:32:25,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14371 Valid, 7827 Invalid, 8843 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [39 Valid, 8804 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2022-11-19 07:32:25,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22404 states. [2022-11-19 07:32:29,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22404 to 16179. [2022-11-19 07:32:29,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16179 states, 16162 states have (on average 1.2897537433485955) internal successors, (20845), 16178 states have internal predecessors, (20845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:32:29,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16179 states to 16179 states and 20845 transitions. [2022-11-19 07:32:29,438 INFO L78 Accepts]: Start accepts. Automaton has 16179 states and 20845 transitions. Word has length 82 [2022-11-19 07:32:29,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:32:29,438 INFO L495 AbstractCegarLoop]: Abstraction has 16179 states and 20845 transitions. [2022-11-19 07:32:29,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:32:29,438 INFO L276 IsEmpty]: Start isEmpty. Operand 16179 states and 20845 transitions. [2022-11-19 07:32:29,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-19 07:32:29,447 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:32:29,447 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, 1, 1] [2022-11-19 07:32:29,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-19 07:32:29,447 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-11-19 07:32:29,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:32:29,448 INFO L85 PathProgramCache]: Analyzing trace with hash 468122123, now seen corresponding path program 1 times [2022-11-19 07:32:29,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:32:29,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84702006] [2022-11-19 07:32:29,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:32:29,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:32:29,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:32:29,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:32:29,780 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:32:29,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84702006] [2022-11-19 07:32:29,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84702006] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:32:29,781 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:32:29,781 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-19 07:32:29,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534750574] [2022-11-19 07:32:29,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:32:29,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-19 07:32:29,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:32:29,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-19 07:32:29,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-11-19 07:32:29,783 INFO L87 Difference]: Start difference. First operand 16179 states and 20845 transitions. Second operand has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:32:46,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:32:46,104 INFO L93 Difference]: Finished difference Result 28414 states and 37581 transitions. [2022-11-19 07:32:46,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-19 07:32:46,105 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2022-11-19 07:32:46,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:32:46,136 INFO L225 Difference]: With dead ends: 28414 [2022-11-19 07:32:46,136 INFO L226 Difference]: Without dead ends: 26244 [2022-11-19 07:32:46,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=158, Invalid=442, Unknown=0, NotChecked=0, Total=600 [2022-11-19 07:32:46,142 INFO L413 NwaCegarLoop]: 1949 mSDtfsCounter, 17735 mSDsluCounter, 6982 mSDsCounter, 0 mSdLazyCounter, 9787 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17735 SdHoareTripleChecker+Valid, 8931 SdHoareTripleChecker+Invalid, 9844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 9787 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-11-19 07:32:46,142 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17735 Valid, 8931 Invalid, 9844 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [57 Valid, 9787 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2022-11-19 07:32:46,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26244 states. [2022-11-19 07:32:50,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26244 to 16179. [2022-11-19 07:32:50,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16179 states, 16162 states have (on average 1.289691869818092) internal successors, (20844), 16178 states have internal predecessors, (20844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:32:50,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16179 states to 16179 states and 20844 transitions. [2022-11-19 07:32:50,149 INFO L78 Accepts]: Start accepts. Automaton has 16179 states and 20844 transitions. Word has length 82 [2022-11-19 07:32:50,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:32:50,149 INFO L495 AbstractCegarLoop]: Abstraction has 16179 states and 20844 transitions. [2022-11-19 07:32:50,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:32:50,149 INFO L276 IsEmpty]: Start isEmpty. Operand 16179 states and 20844 transitions. [2022-11-19 07:32:50,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-19 07:32:50,159 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:32:50,159 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] [2022-11-19 07:32:50,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-19 07:32:50,159 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-11-19 07:32:50,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:32:50,159 INFO L85 PathProgramCache]: Analyzing trace with hash -526527095, now seen corresponding path program 1 times [2022-11-19 07:32:50,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:32:50,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351331168] [2022-11-19 07:32:50,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:32:50,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:32:50,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:32:50,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:32:50,467 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:32:50,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351331168] [2022-11-19 07:32:50,467 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351331168] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:32:50,467 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:32:50,468 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-19 07:32:50,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511994093] [2022-11-19 07:32:50,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:32:50,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 07:32:50,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:32:50,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 07:32:50,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:32:50,470 INFO L87 Difference]: Start difference. First operand 16179 states and 20844 transitions. Second operand has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:33:04,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:33:04,203 INFO L93 Difference]: Finished difference Result 22376 states and 29074 transitions. [2022-11-19 07:33:04,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-19 07:33:04,204 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2022-11-19 07:33:04,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:33:04,226 INFO L225 Difference]: With dead ends: 22376 [2022-11-19 07:33:04,227 INFO L226 Difference]: Without dead ends: 22366 [2022-11-19 07:33:04,231 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2022-11-19 07:33:04,232 INFO L413 NwaCegarLoop]: 1911 mSDtfsCounter, 14402 mSDsluCounter, 5938 mSDsCounter, 0 mSdLazyCounter, 9130 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14402 SdHoareTripleChecker+Valid, 7849 SdHoareTripleChecker+Invalid, 9191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 9130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-11-19 07:33:04,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14402 Valid, 7849 Invalid, 9191 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [61 Valid, 9130 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2022-11-19 07:33:04,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22366 states. [2022-11-19 07:33:08,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22366 to 16179. [2022-11-19 07:33:08,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16179 states, 16162 states have (on average 1.2896299962875881) internal successors, (20843), 16178 states have internal predecessors, (20843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:33:08,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16179 states to 16179 states and 20843 transitions. [2022-11-19 07:33:08,192 INFO L78 Accepts]: Start accepts. Automaton has 16179 states and 20843 transitions. Word has length 82 [2022-11-19 07:33:08,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:33:08,192 INFO L495 AbstractCegarLoop]: Abstraction has 16179 states and 20843 transitions. [2022-11-19 07:33:08,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:33:08,193 INFO L276 IsEmpty]: Start isEmpty. Operand 16179 states and 20843 transitions. [2022-11-19 07:33:08,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-19 07:33:08,203 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:33:08,203 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] [2022-11-19 07:33:08,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-19 07:33:08,203 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-11-19 07:33:08,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:33:08,204 INFO L85 PathProgramCache]: Analyzing trace with hash -734838592, now seen corresponding path program 1 times [2022-11-19 07:33:08,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:33:08,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289974067] [2022-11-19 07:33:08,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:33:08,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:33:08,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:33:08,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:33:08,846 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:33:08,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289974067] [2022-11-19 07:33:08,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289974067] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:33:08,846 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:33:08,846 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-19 07:33:08,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39624730] [2022-11-19 07:33:08,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:33:08,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-19 07:33:08,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:33:08,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-19 07:33:08,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-11-19 07:33:08,847 INFO L87 Difference]: Start difference. First operand 16179 states and 20843 transitions. Second operand has 12 states, 12 states have (on average 6.833333333333333) internal successors, (82), 11 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:33:23,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:33:23,438 INFO L93 Difference]: Finished difference Result 28215 states and 38060 transitions. [2022-11-19 07:33:23,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-19 07:33:23,439 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.833333333333333) internal successors, (82), 11 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2022-11-19 07:33:23,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:33:23,468 INFO L225 Difference]: With dead ends: 28215 [2022-11-19 07:33:23,468 INFO L226 Difference]: Without dead ends: 25153 [2022-11-19 07:33:23,473 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=176, Invalid=424, Unknown=0, NotChecked=0, Total=600 [2022-11-19 07:33:23,474 INFO L413 NwaCegarLoop]: 3675 mSDtfsCounter, 21744 mSDsluCounter, 15322 mSDsCounter, 0 mSdLazyCounter, 2424 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21744 SdHoareTripleChecker+Valid, 18997 SdHoareTripleChecker+Invalid, 2425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-19 07:33:23,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21744 Valid, 18997 Invalid, 2425 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 2424 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-19 07:33:23,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25153 states. [2022-11-19 07:33:27,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25153 to 16127. [2022-11-19 07:33:27,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16127 states, 16111 states have (on average 1.2896778598473093) internal successors, (20778), 16126 states have internal predecessors, (20778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:33:27,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16127 states to 16127 states and 20778 transitions. [2022-11-19 07:33:27,929 INFO L78 Accepts]: Start accepts. Automaton has 16127 states and 20778 transitions. Word has length 82 [2022-11-19 07:33:27,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:33:27,930 INFO L495 AbstractCegarLoop]: Abstraction has 16127 states and 20778 transitions. [2022-11-19 07:33:27,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.833333333333333) internal successors, (82), 11 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:33:27,930 INFO L276 IsEmpty]: Start isEmpty. Operand 16127 states and 20778 transitions. [2022-11-19 07:33:27,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-19 07:33:27,939 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:33:27,939 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] [2022-11-19 07:33:27,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-19 07:33:27,940 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-11-19 07:33:27,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:33:27,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1770899711, now seen corresponding path program 1 times [2022-11-19 07:33:27,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:33:27,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334353373] [2022-11-19 07:33:27,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:33:27,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:33:27,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:33:28,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:33:28,028 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:33:28,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334353373] [2022-11-19 07:33:28,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334353373] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:33:28,029 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:33:28,029 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:33:28,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207142562] [2022-11-19 07:33:28,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:33:28,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:33:28,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:33:28,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:33:28,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:33:28,031 INFO L87 Difference]: Start difference. First operand 16127 states and 20778 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 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) [2022-11-19 07:33:34,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:33:34,103 INFO L93 Difference]: Finished difference Result 20838 states and 27551 transitions. [2022-11-19 07:33:34,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:33:34,104 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 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 [2022-11-19 07:33:34,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:33:34,121 INFO L225 Difference]: With dead ends: 20838 [2022-11-19 07:33:34,121 INFO L226 Difference]: Without dead ends: 15991 [2022-11-19 07:33:34,127 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 [2022-11-19 07:33:34,127 INFO L413 NwaCegarLoop]: 3701 mSDtfsCounter, 2278 mSDsluCounter, 1391 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2278 SdHoareTripleChecker+Valid, 5092 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-19 07:33:34,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2278 Valid, 5092 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-19 07:33:34,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15991 states. [2022-11-19 07:33:38,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15991 to 12997. [2022-11-19 07:33:38,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12997 states, 12981 states have (on average 1.3072952777135813) internal successors, (16970), 12996 states have internal predecessors, (16970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:33:38,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12997 states to 12997 states and 16970 transitions. [2022-11-19 07:33:38,991 INFO L78 Accepts]: Start accepts. Automaton has 12997 states and 16970 transitions. Word has length 83 [2022-11-19 07:33:38,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:33:38,991 INFO L495 AbstractCegarLoop]: Abstraction has 12997 states and 16970 transitions. [2022-11-19 07:33:38,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 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) [2022-11-19 07:33:38,991 INFO L276 IsEmpty]: Start isEmpty. Operand 12997 states and 16970 transitions. [2022-11-19 07:33:39,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-19 07:33:39,000 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:33:39,000 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] [2022-11-19 07:33:39,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-19 07:33:39,000 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-11-19 07:33:39,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:33:39,001 INFO L85 PathProgramCache]: Analyzing trace with hash 1680013345, now seen corresponding path program 1 times [2022-11-19 07:33:39,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:33:39,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159567756] [2022-11-19 07:33:39,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:33:39,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:33:39,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:33:39,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:33:39,087 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:33:39,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159567756] [2022-11-19 07:33:39,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159567756] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:33:39,087 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:33:39,087 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:33:39,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777475996] [2022-11-19 07:33:39,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:33:39,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:33:39,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:33:39,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:33:39,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:33:39,089 INFO L87 Difference]: Start difference. First operand 12997 states and 16970 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 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) [2022-11-19 07:33:48,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:33:48,380 INFO L93 Difference]: Finished difference Result 19923 states and 26897 transitions. [2022-11-19 07:33:48,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:33:48,381 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 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 [2022-11-19 07:33:48,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:33:48,395 INFO L225 Difference]: With dead ends: 19923 [2022-11-19 07:33:48,395 INFO L226 Difference]: Without dead ends: 15295 [2022-11-19 07:33:48,400 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 [2022-11-19 07:33:48,400 INFO L413 NwaCegarLoop]: 3651 mSDtfsCounter, 1536 mSDsluCounter, 2130 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1536 SdHoareTripleChecker+Valid, 5781 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:33:48,401 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1536 Valid, 5781 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 07:33:48,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15295 states. [2022-11-19 07:33:56,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15295 to 15293. [2022-11-19 07:33:56,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15293 states, 15277 states have (on average 1.3283367153236891) internal successors, (20293), 15292 states have internal predecessors, (20293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:33:56,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15293 states to 15293 states and 20293 transitions. [2022-11-19 07:33:56,080 INFO L78 Accepts]: Start accepts. Automaton has 15293 states and 20293 transitions. Word has length 83 [2022-11-19 07:33:56,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:33:56,081 INFO L495 AbstractCegarLoop]: Abstraction has 15293 states and 20293 transitions. [2022-11-19 07:33:56,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 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) [2022-11-19 07:33:56,081 INFO L276 IsEmpty]: Start isEmpty. Operand 15293 states and 20293 transitions. [2022-11-19 07:33:56,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-19 07:33:56,089 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:33:56,089 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:33:56,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-19 07:33:56,090 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-11-19 07:33:56,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:33:56,090 INFO L85 PathProgramCache]: Analyzing trace with hash -436820007, now seen corresponding path program 1 times [2022-11-19 07:33:56,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:33:56,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808556010] [2022-11-19 07:33:56,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:33:56,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:33:56,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:33:56,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:33:56,174 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:33:56,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808556010] [2022-11-19 07:33:56,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808556010] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:33:56,175 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:33:56,175 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:33:56,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969245754] [2022-11-19 07:33:56,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:33:56,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:33:56,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:33:56,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:33:56,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:33:56,177 INFO L87 Difference]: Start difference. First operand 15293 states and 20293 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 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) [2022-11-19 07:34:11,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:34:11,276 INFO L93 Difference]: Finished difference Result 32357 states and 43849 transitions. [2022-11-19 07:34:11,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:34:11,277 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 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 [2022-11-19 07:34:11,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:34:11,310 INFO L225 Difference]: With dead ends: 32357 [2022-11-19 07:34:11,310 INFO L226 Difference]: Without dead ends: 24101 [2022-11-19 07:34:11,319 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 [2022-11-19 07:34:11,320 INFO L413 NwaCegarLoop]: 3745 mSDtfsCounter, 2205 mSDsluCounter, 3084 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2205 SdHoareTripleChecker+Valid, 6829 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-19 07:34:11,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2205 Valid, 6829 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-19 07:34:11,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24101 states. [2022-11-19 07:34:27,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24101 to 24085. [2022-11-19 07:34:27,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24085 states, 24069 states have (on average 1.3348705804146412) internal successors, (32129), 24084 states have internal predecessors, (32129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:34:27,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24085 states to 24085 states and 32129 transitions. [2022-11-19 07:34:27,067 INFO L78 Accepts]: Start accepts. Automaton has 24085 states and 32129 transitions. Word has length 83 [2022-11-19 07:34:27,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:34:27,067 INFO L495 AbstractCegarLoop]: Abstraction has 24085 states and 32129 transitions. [2022-11-19 07:34:27,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 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) [2022-11-19 07:34:27,067 INFO L276 IsEmpty]: Start isEmpty. Operand 24085 states and 32129 transitions. [2022-11-19 07:34:27,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-19 07:34:27,077 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:34:27,077 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:34:27,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-19 07:34:27,078 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-11-19 07:34:27,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:34:27,078 INFO L85 PathProgramCache]: Analyzing trace with hash -211123533, now seen corresponding path program 1 times [2022-11-19 07:34:27,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:34:27,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277996847] [2022-11-19 07:34:27,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:34:27,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:34:27,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:34:27,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:34:27,157 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:34:27,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277996847] [2022-11-19 07:34:27,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277996847] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:34:27,157 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:34:27,158 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:34:27,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301875748] [2022-11-19 07:34:27,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:34:27,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:34:27,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:34:27,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:34:27,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:34:27,159 INFO L87 Difference]: Start difference. First operand 24085 states and 32129 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 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) [2022-11-19 07:34:45,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:34:45,219 INFO L93 Difference]: Finished difference Result 43069 states and 58253 transitions. [2022-11-19 07:34:45,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:34:45,220 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 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 [2022-11-19 07:34:45,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:34:45,254 INFO L225 Difference]: With dead ends: 43069 [2022-11-19 07:34:45,254 INFO L226 Difference]: Without dead ends: 24960 [2022-11-19 07:34:45,270 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 [2022-11-19 07:34:45,270 INFO L413 NwaCegarLoop]: 2681 mSDtfsCounter, 2660 mSDsluCounter, 718 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2660 SdHoareTripleChecker+Valid, 3399 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:34:45,271 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2660 Valid, 3399 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 07:34:45,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24960 states. [2022-11-19 07:34:59,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24960 to 20413. [2022-11-19 07:34:59,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20413 states, 20401 states have (on average 1.341012695456105) internal successors, (27358), 20412 states have internal predecessors, (27358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:34:59,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20413 states to 20413 states and 27358 transitions. [2022-11-19 07:34:59,167 INFO L78 Accepts]: Start accepts. Automaton has 20413 states and 27358 transitions. Word has length 83 [2022-11-19 07:34:59,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:34:59,167 INFO L495 AbstractCegarLoop]: Abstraction has 20413 states and 27358 transitions. [2022-11-19 07:34:59,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 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) [2022-11-19 07:34:59,168 INFO L276 IsEmpty]: Start isEmpty. Operand 20413 states and 27358 transitions. [2022-11-19 07:34:59,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-19 07:34:59,175 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:34:59,175 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] [2022-11-19 07:34:59,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-19 07:34:59,176 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-11-19 07:34:59,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:34:59,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1655686854, now seen corresponding path program 1 times [2022-11-19 07:34:59,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:34:59,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164640397] [2022-11-19 07:34:59,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:34:59,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:34:59,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:34:59,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:34:59,261 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:34:59,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164640397] [2022-11-19 07:34:59,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164640397] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:34:59,262 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:34:59,262 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:34:59,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317877801] [2022-11-19 07:34:59,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:34:59,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:34:59,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:34:59,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:34:59,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:34:59,264 INFO L87 Difference]: Start difference. First operand 20413 states and 27358 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 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) [2022-11-19 07:35:25,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:35:25,927 INFO L93 Difference]: Finished difference Result 47071 states and 64214 transitions. [2022-11-19 07:35:25,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:35:25,928 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 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 [2022-11-19 07:35:25,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:35:25,975 INFO L225 Difference]: With dead ends: 47071 [2022-11-19 07:35:25,976 INFO L226 Difference]: Without dead ends: 33055 [2022-11-19 07:35:25,986 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 [2022-11-19 07:35:25,987 INFO L413 NwaCegarLoop]: 2858 mSDtfsCounter, 1710 mSDsluCounter, 2176 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1710 SdHoareTripleChecker+Valid, 5034 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:35:25,987 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1710 Valid, 5034 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 07:35:26,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33055 states. [2022-11-19 07:35:51,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33055 to 33039. [2022-11-19 07:35:51,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33039 states, 33027 states have (on average 1.3427801495745906) internal successors, (44348), 33038 states have internal predecessors, (44348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:35:51,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33039 states to 33039 states and 44348 transitions. [2022-11-19 07:35:51,371 INFO L78 Accepts]: Start accepts. Automaton has 33039 states and 44348 transitions. Word has length 83 [2022-11-19 07:35:51,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:35:51,372 INFO L495 AbstractCegarLoop]: Abstraction has 33039 states and 44348 transitions. [2022-11-19 07:35:51,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 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) [2022-11-19 07:35:51,372 INFO L276 IsEmpty]: Start isEmpty. Operand 33039 states and 44348 transitions. [2022-11-19 07:35:51,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-19 07:35:51,383 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:35:51,383 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] [2022-11-19 07:35:51,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-19 07:35:51,383 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-11-19 07:35:51,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:35:51,384 INFO L85 PathProgramCache]: Analyzing trace with hash -1347658320, now seen corresponding path program 1 times [2022-11-19 07:35:51,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:35:51,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803192332] [2022-11-19 07:35:51,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:35:51,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:35:51,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:35:52,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:35:52,097 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:35:52,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803192332] [2022-11-19 07:35:52,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803192332] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:35:52,098 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:35:52,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-19 07:35:52,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932472847] [2022-11-19 07:35:52,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:35:52,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-19 07:35:52,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:35:52,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-19 07:35:52,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-19 07:35:52,099 INFO L87 Difference]: Start difference. First operand 33039 states and 44348 transitions. Second operand has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 12 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) [2022-11-19 07:37:14,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:37:14,733 INFO L93 Difference]: Finished difference Result 80270 states and 109516 transitions. [2022-11-19 07:37:14,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-19 07:37:14,733 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 12 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 [2022-11-19 07:37:14,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:37:14,855 INFO L225 Difference]: With dead ends: 80270 [2022-11-19 07:37:14,855 INFO L226 Difference]: Without dead ends: 80257 [2022-11-19 07:37:14,871 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=168, Invalid=482, Unknown=0, NotChecked=0, Total=650 [2022-11-19 07:37:14,871 INFO L413 NwaCegarLoop]: 2964 mSDtfsCounter, 15164 mSDsluCounter, 16898 mSDsCounter, 0 mSdLazyCounter, 2566 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15164 SdHoareTripleChecker+Valid, 19862 SdHoareTripleChecker+Invalid, 2582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 2566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-19 07:37:14,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15164 Valid, 19862 Invalid, 2582 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [16 Valid, 2566 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-19 07:37:14,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80257 states. [2022-11-19 07:37:41,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80257 to 33026. [2022-11-19 07:37:41,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33026 states, 33015 states have (on average 1.342874451007118) internal successors, (44335), 33025 states have internal predecessors, (44335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:37:41,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33026 states to 33026 states and 44335 transitions. [2022-11-19 07:37:41,913 INFO L78 Accepts]: Start accepts. Automaton has 33026 states and 44335 transitions. Word has length 83 [2022-11-19 07:37:41,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:37:41,913 INFO L495 AbstractCegarLoop]: Abstraction has 33026 states and 44335 transitions. [2022-11-19 07:37:41,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 12 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) [2022-11-19 07:37:41,913 INFO L276 IsEmpty]: Start isEmpty. Operand 33026 states and 44335 transitions. [2022-11-19 07:37:41,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-19 07:37:41,922 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:37:41,922 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] [2022-11-19 07:37:41,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-19 07:37:41,922 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-11-19 07:37:41,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:37:41,923 INFO L85 PathProgramCache]: Analyzing trace with hash -1068001229, now seen corresponding path program 1 times [2022-11-19 07:37:41,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:37:41,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563772296] [2022-11-19 07:37:41,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:37:41,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:37:41,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:37:42,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:37:42,235 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:37:42,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563772296] [2022-11-19 07:37:42,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563772296] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:37:42,235 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:37:42,235 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-19 07:37:42,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133642172] [2022-11-19 07:37:42,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:37:42,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 07:37:42,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:37:42,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 07:37:42,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:37:42,237 INFO L87 Difference]: Start difference. First operand 33026 states and 44335 transitions. Second operand has 8 states, 8 states have (on average 10.375) internal successors, (83), 7 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) [2022-11-19 07:38:36,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:38:36,299 INFO L93 Difference]: Finished difference Result 54702 states and 73325 transitions. [2022-11-19 07:38:36,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-19 07:38:36,300 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 7 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 [2022-11-19 07:38:36,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:38:36,371 INFO L225 Difference]: With dead ends: 54702 [2022-11-19 07:38:36,371 INFO L226 Difference]: Without dead ends: 51838 [2022-11-19 07:38:36,382 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2022-11-19 07:38:36,382 INFO L413 NwaCegarLoop]: 1476 mSDtfsCounter, 10608 mSDsluCounter, 4528 mSDsCounter, 0 mSdLazyCounter, 6967 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10608 SdHoareTripleChecker+Valid, 6004 SdHoareTripleChecker+Invalid, 7020 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 6967 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-11-19 07:38:36,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10608 Valid, 6004 Invalid, 7020 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [53 Valid, 6967 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-11-19 07:38:36,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51838 states. [2022-11-19 07:39:03,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51838 to 33014. [2022-11-19 07:39:03,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33014 states, 33003 states have (on average 1.3428476199133412) internal successors, (44318), 33013 states have internal predecessors, (44318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:39:03,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33014 states to 33014 states and 44318 transitions. [2022-11-19 07:39:03,265 INFO L78 Accepts]: Start accepts. Automaton has 33014 states and 44318 transitions. Word has length 83 [2022-11-19 07:39:03,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:39:03,265 INFO L495 AbstractCegarLoop]: Abstraction has 33014 states and 44318 transitions. [2022-11-19 07:39:03,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 7 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) [2022-11-19 07:39:03,266 INFO L276 IsEmpty]: Start isEmpty. Operand 33014 states and 44318 transitions. [2022-11-19 07:39:03,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-19 07:39:03,280 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:39:03,280 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] [2022-11-19 07:39:03,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-19 07:39:03,281 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-11-19 07:39:03,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:39:03,281 INFO L85 PathProgramCache]: Analyzing trace with hash -1456246563, now seen corresponding path program 1 times [2022-11-19 07:39:03,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:39:03,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823707672] [2022-11-19 07:39:03,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:39:03,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:39:03,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:39:03,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:39:03,353 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:39:03,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823707672] [2022-11-19 07:39:03,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823707672] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:39:03,354 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:39:03,354 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:39:03,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101321448] [2022-11-19 07:39:03,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:39:03,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:39:03,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:39:03,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:39:03,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:39:03,355 INFO L87 Difference]: Start difference. First operand 33014 states and 44318 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 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) [2022-11-19 07:39:36,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:39:36,022 INFO L93 Difference]: Finished difference Result 64223 states and 87279 transitions. [2022-11-19 07:39:36,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:39:36,022 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 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 [2022-11-19 07:39:36,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:39:36,066 INFO L225 Difference]: With dead ends: 64223 [2022-11-19 07:39:36,067 INFO L226 Difference]: Without dead ends: 35479 [2022-11-19 07:39:36,088 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 [2022-11-19 07:39:36,088 INFO L413 NwaCegarLoop]: 2721 mSDtfsCounter, 2608 mSDsluCounter, 916 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2608 SdHoareTripleChecker+Valid, 3637 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:39:36,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2608 Valid, 3637 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 07:39:36,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35479 states. [2022-11-19 07:40:01,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35479 to 28524. [2022-11-19 07:40:01,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28524 states, 28513 states have (on average 1.3543296040402624) internal successors, (38616), 28523 states have internal predecessors, (38616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:40:01,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28524 states to 28524 states and 38616 transitions. [2022-11-19 07:40:01,524 INFO L78 Accepts]: Start accepts. Automaton has 28524 states and 38616 transitions. Word has length 84 [2022-11-19 07:40:01,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:40:01,524 INFO L495 AbstractCegarLoop]: Abstraction has 28524 states and 38616 transitions. [2022-11-19 07:40:01,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 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) [2022-11-19 07:40:01,524 INFO L276 IsEmpty]: Start isEmpty. Operand 28524 states and 38616 transitions. [2022-11-19 07:40:01,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-19 07:40:01,530 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:40:01,531 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] [2022-11-19 07:40:01,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-19 07:40:01,531 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-11-19 07:40:01,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:40:01,531 INFO L85 PathProgramCache]: Analyzing trace with hash -222283580, now seen corresponding path program 1 times [2022-11-19 07:40:01,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:40:01,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417150455] [2022-11-19 07:40:01,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:40:01,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:40:01,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:40:02,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:40:02,273 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:40:02,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417150455] [2022-11-19 07:40:02,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417150455] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:40:02,273 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:40:02,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-19 07:40:02,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105741358] [2022-11-19 07:40:02,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:40:02,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-19 07:40:02,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:40:02,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-19 07:40:02,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-19 07:40:02,275 INFO L87 Difference]: Start difference. First operand 28524 states and 38616 transitions. Second operand has 12 states, 12 states have (on average 7.0) internal successors, (84), 11 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) [2022-11-19 07:40:50,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:40:50,443 INFO L93 Difference]: Finished difference Result 47205 states and 64111 transitions. [2022-11-19 07:40:50,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-19 07:40:50,444 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.0) internal successors, (84), 11 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 [2022-11-19 07:40:50,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:40:50,504 INFO L225 Difference]: With dead ends: 47205 [2022-11-19 07:40:50,505 INFO L226 Difference]: Without dead ends: 45779 [2022-11-19 07:40:50,514 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-11-19 07:40:50,514 INFO L413 NwaCegarLoop]: 2612 mSDtfsCounter, 16198 mSDsluCounter, 8552 mSDsCounter, 0 mSdLazyCounter, 1892 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16198 SdHoareTripleChecker+Valid, 11164 SdHoareTripleChecker+Invalid, 1931 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1892 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-19 07:40:50,514 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16198 Valid, 11164 Invalid, 1931 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [39 Valid, 1892 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-19 07:40:50,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45779 states. [2022-11-19 07:41:16,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45779 to 28524. [2022-11-19 07:41:16,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28524 states, 28513 states have (on average 1.3542594605969207) internal successors, (38614), 28523 states have internal predecessors, (38614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:41:16,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28524 states to 28524 states and 38614 transitions. [2022-11-19 07:41:16,550 INFO L78 Accepts]: Start accepts. Automaton has 28524 states and 38614 transitions. Word has length 84 [2022-11-19 07:41:16,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:41:16,550 INFO L495 AbstractCegarLoop]: Abstraction has 28524 states and 38614 transitions. [2022-11-19 07:41:16,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.0) internal successors, (84), 11 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) [2022-11-19 07:41:16,551 INFO L276 IsEmpty]: Start isEmpty. Operand 28524 states and 38614 transitions. [2022-11-19 07:41:16,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-19 07:41:16,558 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:41:16,558 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] [2022-11-19 07:41:16,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-19 07:41:16,558 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2022-11-19 07:41:16,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:41:16,559 INFO L85 PathProgramCache]: Analyzing trace with hash 105654123, now seen corresponding path program 1 times [2022-11-19 07:41:16,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:41:16,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315008872] [2022-11-19 07:41:16,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:41:16,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:41:16,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:41:16,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:41:16,843 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:41:16,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315008872] [2022-11-19 07:41:16,843 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315008872] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:41:16,843 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:41:16,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-19 07:41:16,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737242873] [2022-11-19 07:41:16,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:41:16,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 07:41:16,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:41:16,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 07:41:16,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:41:16,845 INFO L87 Difference]: Start difference. First operand 28524 states and 38614 transitions. Second operand has 8 states, 8 states have (on average 10.5) internal successors, (84), 7 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)