./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c22888fc-4028-4c88-b6b8-b4a99330d4c2/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c22888fc-4028-4c88-b6b8-b4a99330d4c2/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c22888fc-4028-4c88-b6b8-b4a99330d4c2/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c22888fc-4028-4c88-b6b8-b4a99330d4c2/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c22888fc-4028-4c88-b6b8-b4a99330d4c2/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c22888fc-4028-4c88-b6b8-b4a99330d4c2/bin/utaipan-gh47qXpMRh --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 bf3e653d470f38ca10e6f2ef710928478301c2e1b39e054d852fd4b90e26a334 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 03:15:03,803 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 03:15:03,805 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 03:15:03,820 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 03:15:03,820 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 03:15:03,821 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 03:15:03,822 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 03:15:03,823 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 03:15:03,824 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 03:15:03,825 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 03:15:03,826 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 03:15:03,826 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 03:15:03,827 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 03:15:03,827 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 03:15:03,828 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 03:15:03,829 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 03:15:03,830 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 03:15:03,830 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 03:15:03,831 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 03:15:03,833 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 03:15:03,834 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 03:15:03,835 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 03:15:03,835 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 03:15:03,836 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 03:15:03,838 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 03:15:03,838 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 03:15:03,839 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 03:15:03,839 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 03:15:03,840 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 03:15:03,840 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 03:15:03,841 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 03:15:03,841 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 03:15:03,842 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 03:15:03,842 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 03:15:03,843 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 03:15:03,843 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 03:15:03,843 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 03:15:03,844 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 03:15:03,844 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 03:15:03,844 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 03:15:03,845 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 03:15:03,846 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c22888fc-4028-4c88-b6b8-b4a99330d4c2/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 03:15:03,872 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 03:15:03,872 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 03:15:03,873 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 03:15:03,873 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 03:15:03,873 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 03:15:03,873 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 03:15:03,874 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 03:15:03,874 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 03:15:03,874 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 03:15:03,874 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 03:15:03,874 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 03:15:03,874 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 03:15:03,875 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 03:15:03,875 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 03:15:03,875 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 03:15:03,875 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 03:15:03,875 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 03:15:03,875 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 03:15:03,876 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 03:15:03,876 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 03:15:03,876 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 03:15:03,876 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 03:15:03,877 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 03:15:03,877 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 03:15:03,877 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 03:15:03,877 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 03:15:03,877 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 03:15:03,877 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 03:15:03,878 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 03:15:03,878 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 03:15:03,878 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 03:15:03,878 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 03:15:03,878 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 03:15:03,878 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 03:15:03,878 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 03:15:03,879 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 03:15:03,879 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 03:15:03,879 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 03:15:03,879 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 03:15:03,879 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 03:15:03,879 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 03:15:03,880 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_c22888fc-4028-4c88-b6b8-b4a99330d4c2/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c22888fc-4028-4c88-b6b8-b4a99330d4c2/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bf3e653d470f38ca10e6f2ef710928478301c2e1b39e054d852fd4b90e26a334 [2022-12-14 03:15:04,085 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 03:15:04,101 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 03:15:04,104 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 03:15:04,105 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 03:15:04,105 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 03:15:04,107 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c22888fc-4028-4c88-b6b8-b4a99330d4c2/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2022-12-14 03:15:06,630 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 03:15:06,972 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 03:15:06,973 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c22888fc-4028-4c88-b6b8-b4a99330d4c2/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2022-12-14 03:15:07,012 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c22888fc-4028-4c88-b6b8-b4a99330d4c2/bin/utaipan-gh47qXpMRh/data/6e07d2ae6/925c79e0bfbd4757bc3d0bcf8af89840/FLAGf812805da [2022-12-14 03:15:07,200 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c22888fc-4028-4c88-b6b8-b4a99330d4c2/bin/utaipan-gh47qXpMRh/data/6e07d2ae6/925c79e0bfbd4757bc3d0bcf8af89840 [2022-12-14 03:15:07,202 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 03:15:07,203 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 03:15:07,204 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 03:15:07,204 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 03:15:07,207 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 03:15:07,208 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:15:07" (1/1) ... [2022-12-14 03:15:07,209 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d4659c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:15:07, skipping insertion in model container [2022-12-14 03:15:07,209 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:15:07" (1/1) ... [2022-12-14 03:15:07,216 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 03:15:07,364 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 03:15:07,812 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c22888fc-4028-4c88-b6b8-b4a99330d4c2/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[69564,69577] [2022-12-14 03:15:07,903 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c22888fc-4028-4c88-b6b8-b4a99330d4c2/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[101232,101245] [2022-12-14 03:15:07,956 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c22888fc-4028-4c88-b6b8-b4a99330d4c2/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[117050,117063] [2022-12-14 03:15:07,980 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c22888fc-4028-4c88-b6b8-b4a99330d4c2/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[124955,124968] [2022-12-14 03:15:07,990 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c22888fc-4028-4c88-b6b8-b4a99330d4c2/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[128881,128894] [2022-12-14 03:15:08,001 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c22888fc-4028-4c88-b6b8-b4a99330d4c2/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[132623,132636] [2022-12-14 03:15:08,075 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c22888fc-4028-4c88-b6b8-b4a99330d4c2/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[163781,163794] [2022-12-14 03:15:08,113 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c22888fc-4028-4c88-b6b8-b4a99330d4c2/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[179384,179397] [2022-12-14 03:15:08,131 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c22888fc-4028-4c88-b6b8-b4a99330d4c2/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[187284,187297] [2022-12-14 03:15:08,140 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c22888fc-4028-4c88-b6b8-b4a99330d4c2/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[191205,191218] [2022-12-14 03:15:08,149 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c22888fc-4028-4c88-b6b8-b4a99330d4c2/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[194942,194955] [2022-12-14 03:15:08,187 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c22888fc-4028-4c88-b6b8-b4a99330d4c2/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[211727,211740] [2022-12-14 03:15:08,205 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c22888fc-4028-4c88-b6b8-b4a99330d4c2/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[219627,219640] [2022-12-14 03:15:08,216 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c22888fc-4028-4c88-b6b8-b4a99330d4c2/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[223548,223561] [2022-12-14 03:15:08,225 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c22888fc-4028-4c88-b6b8-b4a99330d4c2/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[227285,227298] [2022-12-14 03:15:08,236 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c22888fc-4028-4c88-b6b8-b4a99330d4c2/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[231785,231798] [2022-12-14 03:15:08,245 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c22888fc-4028-4c88-b6b8-b4a99330d4c2/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[235573,235586] [2022-12-14 03:15:08,254 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c22888fc-4028-4c88-b6b8-b4a99330d4c2/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[239494,239507] [2022-12-14 03:15:08,263 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c22888fc-4028-4c88-b6b8-b4a99330d4c2/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[243231,243244] [2022-12-14 03:15:08,273 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c22888fc-4028-4c88-b6b8-b4a99330d4c2/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[247352,247365] [2022-12-14 03:15:08,283 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c22888fc-4028-4c88-b6b8-b4a99330d4c2/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[251105,251118] [2022-12-14 03:15:08,292 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c22888fc-4028-4c88-b6b8-b4a99330d4c2/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[255022,255035] [2022-12-14 03:15:08,332 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 03:15:08,347 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 03:15:08,541 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c22888fc-4028-4c88-b6b8-b4a99330d4c2/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[69564,69577] [2022-12-14 03:15:08,608 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c22888fc-4028-4c88-b6b8-b4a99330d4c2/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[101232,101245] [2022-12-14 03:15:08,665 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c22888fc-4028-4c88-b6b8-b4a99330d4c2/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[117050,117063] [2022-12-14 03:15:08,688 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c22888fc-4028-4c88-b6b8-b4a99330d4c2/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[124955,124968] [2022-12-14 03:15:08,700 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c22888fc-4028-4c88-b6b8-b4a99330d4c2/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[128881,128894] [2022-12-14 03:15:08,711 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c22888fc-4028-4c88-b6b8-b4a99330d4c2/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[132623,132636] [2022-12-14 03:15:08,775 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c22888fc-4028-4c88-b6b8-b4a99330d4c2/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[163781,163794] [2022-12-14 03:15:08,804 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c22888fc-4028-4c88-b6b8-b4a99330d4c2/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[179384,179397] [2022-12-14 03:15:08,819 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c22888fc-4028-4c88-b6b8-b4a99330d4c2/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[187284,187297] [2022-12-14 03:15:08,827 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c22888fc-4028-4c88-b6b8-b4a99330d4c2/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[191205,191218] [2022-12-14 03:15:08,835 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c22888fc-4028-4c88-b6b8-b4a99330d4c2/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[194942,194955] [2022-12-14 03:15:08,874 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c22888fc-4028-4c88-b6b8-b4a99330d4c2/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[211727,211740] [2022-12-14 03:15:08,895 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c22888fc-4028-4c88-b6b8-b4a99330d4c2/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[219627,219640] [2022-12-14 03:15:08,906 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c22888fc-4028-4c88-b6b8-b4a99330d4c2/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[223548,223561] [2022-12-14 03:15:08,917 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c22888fc-4028-4c88-b6b8-b4a99330d4c2/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[227285,227298] [2022-12-14 03:15:08,926 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c22888fc-4028-4c88-b6b8-b4a99330d4c2/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[231785,231798] [2022-12-14 03:15:08,934 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c22888fc-4028-4c88-b6b8-b4a99330d4c2/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[235573,235586] [2022-12-14 03:15:08,942 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c22888fc-4028-4c88-b6b8-b4a99330d4c2/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[239494,239507] [2022-12-14 03:15:08,952 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c22888fc-4028-4c88-b6b8-b4a99330d4c2/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[243231,243244] [2022-12-14 03:15:08,960 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c22888fc-4028-4c88-b6b8-b4a99330d4c2/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[247352,247365] [2022-12-14 03:15:08,968 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c22888fc-4028-4c88-b6b8-b4a99330d4c2/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[251105,251118] [2022-12-14 03:15:08,977 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c22888fc-4028-4c88-b6b8-b4a99330d4c2/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[255022,255035] [2022-12-14 03:15:08,998 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 03:15:09,018 INFO L208 MainTranslator]: Completed translation [2022-12-14 03:15:09,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:15:09 WrapperNode [2022-12-14 03:15:09,019 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 03:15:09,020 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 03:15:09,020 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 03:15:09,020 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 03:15:09,025 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:15:09" (1/1) ... [2022-12-14 03:15:09,063 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:15:09" (1/1) ... [2022-12-14 03:15:09,203 INFO L138 Inliner]: procedures = 26, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 11488 [2022-12-14 03:15:09,203 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 03:15:09,204 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 03:15:09,204 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 03:15:09,204 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 03:15:09,213 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:15:09" (1/1) ... [2022-12-14 03:15:09,213 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:15:09" (1/1) ... [2022-12-14 03:15:09,236 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:15:09" (1/1) ... [2022-12-14 03:15:09,236 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:15:09" (1/1) ... [2022-12-14 03:15:09,290 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:15:09" (1/1) ... [2022-12-14 03:15:09,316 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:15:09" (1/1) ... [2022-12-14 03:15:09,334 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:15:09" (1/1) ... [2022-12-14 03:15:09,346 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:15:09" (1/1) ... [2022-12-14 03:15:09,378 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 03:15:09,378 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 03:15:09,379 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 03:15:09,379 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 03:15:09,379 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:15:09" (1/1) ... [2022-12-14 03:15:09,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 03:15:09,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c22888fc-4028-4c88-b6b8-b4a99330d4c2/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 03:15:09,407 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c22888fc-4028-4c88-b6b8-b4a99330d4c2/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 03:15:09,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c22888fc-4028-4c88-b6b8-b4a99330d4c2/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 03:15:09,441 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 03:15:09,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 03:15:09,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 03:15:09,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 03:15:09,711 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 03:15:09,713 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 03:15:12,896 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 03:15:13,112 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 03:15:13,112 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 03:15:13,118 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:15:13 BoogieIcfgContainer [2022-12-14 03:15:13,118 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 03:15:13,121 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 03:15:13,121 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 03:15:13,124 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 03:15:13,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 03:15:07" (1/3) ... [2022-12-14 03:15:13,124 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@568e955b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:15:13, skipping insertion in model container [2022-12-14 03:15:13,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:15:09" (2/3) ... [2022-12-14 03:15:13,125 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@568e955b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:15:13, skipping insertion in model container [2022-12-14 03:15:13,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:15:13" (3/3) ... [2022-12-14 03:15:13,126 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2022-12-14 03:15:13,144 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 03:15:13,144 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2022-12-14 03:15:13,228 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 03:15:13,233 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;@3af3bc1a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 03:15:13,234 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2022-12-14 03:15:13,243 INFO L276 IsEmpty]: Start isEmpty. Operand has 2311 states, 2288 states have (on average 1.8229895104895104) internal successors, (4171), 2310 states have internal predecessors, (4171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:13,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-12-14 03:15:13,265 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:15:13,266 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:15:13,266 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:15:13,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:15:13,272 INFO L85 PathProgramCache]: Analyzing trace with hash 474104121, now seen corresponding path program 1 times [2022-12-14 03:15:13,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:15:13,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597556345] [2022-12-14 03:15:13,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:15:13,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:15:13,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:15:13,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:15:13,750 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:15:13,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597556345] [2022-12-14 03:15:13,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597556345] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:15:13,751 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:15:13,751 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 03:15:13,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461854119] [2022-12-14 03:15:13,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:15:13,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 03:15:13,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:15:13,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 03:15:13,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 03:15:13,793 INFO L87 Difference]: Start difference. First operand has 2311 states, 2288 states have (on average 1.8229895104895104) internal successors, (4171), 2310 states have internal predecessors, (4171), 0 states have call successors, (0), 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 17.0) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:15,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:15:15,155 INFO L93 Difference]: Finished difference Result 2737 states and 4863 transitions. [2022-12-14 03:15:15,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 03:15:15,157 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2022-12-14 03:15:15,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:15:15,171 INFO L225 Difference]: With dead ends: 2737 [2022-12-14 03:15:15,171 INFO L226 Difference]: Without dead ends: 1585 [2022-12-14 03:15:15,176 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 [2022-12-14 03:15:15,178 INFO L413 NwaCegarLoop]: 1484 mSDtfsCounter, 8266 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 1317 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8266 SdHoareTripleChecker+Valid, 1524 SdHoareTripleChecker+Invalid, 1338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-14 03:15:15,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8266 Valid, 1524 Invalid, 1338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1317 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-14 03:15:15,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1585 states. [2022-12-14 03:15:15,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1585 to 1585. [2022-12-14 03:15:15,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1585 states, 1563 states have (on average 1.3122200895713372) internal successors, (2051), 1584 states have internal predecessors, (2051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:15,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1585 states to 1585 states and 2051 transitions. [2022-12-14 03:15:15,289 INFO L78 Accepts]: Start accepts. Automaton has 1585 states and 2051 transitions. Word has length 85 [2022-12-14 03:15:15,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:15:15,289 INFO L495 AbstractCegarLoop]: Abstraction has 1585 states and 2051 transitions. [2022-12-14 03:15:15,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:15,290 INFO L276 IsEmpty]: Start isEmpty. Operand 1585 states and 2051 transitions. [2022-12-14 03:15:15,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-12-14 03:15:15,294 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:15:15,294 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:15:15,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 03:15:15,295 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:15:15,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:15:15,296 INFO L85 PathProgramCache]: Analyzing trace with hash -1379625602, now seen corresponding path program 1 times [2022-12-14 03:15:15,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:15:15,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422247326] [2022-12-14 03:15:15,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:15:15,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:15:15,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:15:15,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:15:15,473 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:15:15,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422247326] [2022-12-14 03:15:15,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422247326] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:15:15,473 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:15:15,473 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 03:15:15,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611824770] [2022-12-14 03:15:15,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:15:15,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 03:15:15,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:15:15,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 03:15:15,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 03:15:15,476 INFO L87 Difference]: Start difference. First operand 1585 states and 2051 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:16,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:15:16,482 INFO L93 Difference]: Finished difference Result 2213 states and 2882 transitions. [2022-12-14 03:15:16,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 03:15:16,482 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2022-12-14 03:15:16,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:15:16,488 INFO L225 Difference]: With dead ends: 2213 [2022-12-14 03:15:16,488 INFO L226 Difference]: Without dead ends: 1457 [2022-12-14 03:15:16,489 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 [2022-12-14 03:15:16,491 INFO L413 NwaCegarLoop]: 767 mSDtfsCounter, 5584 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 1141 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5584 SdHoareTripleChecker+Valid, 811 SdHoareTripleChecker+Invalid, 1190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-14 03:15:16,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5584 Valid, 811 Invalid, 1190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1141 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-14 03:15:16,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1457 states. [2022-12-14 03:15:16,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1457 to 1457. [2022-12-14 03:15:16,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1457 states, 1435 states have (on average 1.3282229965156795) internal successors, (1906), 1456 states have internal predecessors, (1906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:16,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1457 states to 1457 states and 1906 transitions. [2022-12-14 03:15:16,532 INFO L78 Accepts]: Start accepts. Automaton has 1457 states and 1906 transitions. Word has length 85 [2022-12-14 03:15:16,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:15:16,532 INFO L495 AbstractCegarLoop]: Abstraction has 1457 states and 1906 transitions. [2022-12-14 03:15:16,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:16,532 INFO L276 IsEmpty]: Start isEmpty. Operand 1457 states and 1906 transitions. [2022-12-14 03:15:16,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-12-14 03:15:16,534 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:15:16,535 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:15:16,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 03:15:16,535 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:15:16,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:15:16,536 INFO L85 PathProgramCache]: Analyzing trace with hash -546397045, now seen corresponding path program 1 times [2022-12-14 03:15:16,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:15:16,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619997154] [2022-12-14 03:15:16,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:15:16,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:15:16,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:15:16,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:15:16,648 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:15:16,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619997154] [2022-12-14 03:15:16,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619997154] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:15:16,649 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:15:16,649 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 03:15:16,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695839788] [2022-12-14 03:15:16,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:15:16,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 03:15:16,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:15:16,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 03:15:16,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 03:15:16,651 INFO L87 Difference]: Start difference. First operand 1457 states and 1906 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:17,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:15:17,844 INFO L93 Difference]: Finished difference Result 2628 states and 3458 transitions. [2022-12-14 03:15:17,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 03:15:17,845 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2022-12-14 03:15:17,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:15:17,851 INFO L225 Difference]: With dead ends: 2628 [2022-12-14 03:15:17,851 INFO L226 Difference]: Without dead ends: 1890 [2022-12-14 03:15:17,853 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 [2022-12-14 03:15:17,854 INFO L413 NwaCegarLoop]: 767 mSDtfsCounter, 6558 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 1423 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6558 SdHoareTripleChecker+Valid, 1143 SdHoareTripleChecker+Invalid, 1432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-14 03:15:17,855 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6558 Valid, 1143 Invalid, 1432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1423 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-14 03:15:17,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1890 states. [2022-12-14 03:15:17,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1890 to 1752. [2022-12-14 03:15:17,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1752 states, 1730 states have (on average 1.3739884393063584) internal successors, (2377), 1751 states have internal predecessors, (2377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:17,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1752 states to 1752 states and 2377 transitions. [2022-12-14 03:15:17,945 INFO L78 Accepts]: Start accepts. Automaton has 1752 states and 2377 transitions. Word has length 85 [2022-12-14 03:15:17,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:15:17,946 INFO L495 AbstractCegarLoop]: Abstraction has 1752 states and 2377 transitions. [2022-12-14 03:15:17,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:17,946 INFO L276 IsEmpty]: Start isEmpty. Operand 1752 states and 2377 transitions. [2022-12-14 03:15:17,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-12-14 03:15:17,950 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:15:17,950 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:15:17,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 03:15:17,951 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:15:17,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:15:17,951 INFO L85 PathProgramCache]: Analyzing trace with hash 326947046, now seen corresponding path program 1 times [2022-12-14 03:15:17,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:15:17,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889335360] [2022-12-14 03:15:17,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:15:17,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:15:17,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:15:18,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:15:18,091 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:15:18,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889335360] [2022-12-14 03:15:18,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889335360] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:15:18,092 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:15:18,092 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 03:15:18,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031833092] [2022-12-14 03:15:18,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:15:18,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 03:15:18,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:15:18,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 03:15:18,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 03:15:18,093 INFO L87 Difference]: Start difference. First operand 1752 states and 2377 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:18,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:15:18,828 INFO L93 Difference]: Finished difference Result 2441 states and 3305 transitions. [2022-12-14 03:15:18,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 03:15:18,829 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2022-12-14 03:15:18,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:15:18,832 INFO L225 Difference]: With dead ends: 2441 [2022-12-14 03:15:18,832 INFO L226 Difference]: Without dead ends: 1554 [2022-12-14 03:15:18,833 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 [2022-12-14 03:15:18,834 INFO L413 NwaCegarLoop]: 676 mSDtfsCounter, 4437 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 828 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4437 SdHoareTripleChecker+Valid, 688 SdHoareTripleChecker+Invalid, 838 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 828 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-14 03:15:18,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4437 Valid, 688 Invalid, 838 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 828 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-14 03:15:18,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1554 states. [2022-12-14 03:15:18,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1554 to 1554. [2022-12-14 03:15:18,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1554 states, 1532 states have (on average 1.3870757180156659) internal successors, (2125), 1553 states have internal predecessors, (2125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:18,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1554 states to 1554 states and 2125 transitions. [2022-12-14 03:15:18,901 INFO L78 Accepts]: Start accepts. Automaton has 1554 states and 2125 transitions. Word has length 86 [2022-12-14 03:15:18,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:15:18,901 INFO L495 AbstractCegarLoop]: Abstraction has 1554 states and 2125 transitions. [2022-12-14 03:15:18,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:18,902 INFO L276 IsEmpty]: Start isEmpty. Operand 1554 states and 2125 transitions. [2022-12-14 03:15:18,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-12-14 03:15:18,905 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:15:18,905 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:15:18,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 03:15:18,905 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:15:18,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:15:18,906 INFO L85 PathProgramCache]: Analyzing trace with hash -379387896, now seen corresponding path program 1 times [2022-12-14 03:15:18,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:15:18,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573195828] [2022-12-14 03:15:18,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:15:18,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:15:18,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:15:18,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:15:18,993 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:15:18,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573195828] [2022-12-14 03:15:18,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573195828] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:15:18,994 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:15:18,994 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 03:15:18,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127796808] [2022-12-14 03:15:18,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:15:18,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 03:15:18,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:15:18,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 03:15:18,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 03:15:18,996 INFO L87 Difference]: Start difference. First operand 1554 states and 2125 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:19,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:15:19,578 INFO L93 Difference]: Finished difference Result 1956 states and 2626 transitions. [2022-12-14 03:15:19,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 03:15:19,579 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2022-12-14 03:15:19,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:15:19,586 INFO L225 Difference]: With dead ends: 1956 [2022-12-14 03:15:19,586 INFO L226 Difference]: Without dead ends: 1195 [2022-12-14 03:15:19,588 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 [2022-12-14 03:15:19,589 INFO L413 NwaCegarLoop]: 519 mSDtfsCounter, 3333 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 627 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3333 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-14 03:15:19,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3333 Valid, 547 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 627 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-14 03:15:19,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1195 states. [2022-12-14 03:15:19,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1195 to 1195. [2022-12-14 03:15:19,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1195 states, 1173 states have (on average 1.392156862745098) internal successors, (1633), 1194 states have internal predecessors, (1633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:19,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1195 states to 1195 states and 1633 transitions. [2022-12-14 03:15:19,664 INFO L78 Accepts]: Start accepts. Automaton has 1195 states and 1633 transitions. Word has length 87 [2022-12-14 03:15:19,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:15:19,664 INFO L495 AbstractCegarLoop]: Abstraction has 1195 states and 1633 transitions. [2022-12-14 03:15:19,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:19,664 INFO L276 IsEmpty]: Start isEmpty. Operand 1195 states and 1633 transitions. [2022-12-14 03:15:19,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-12-14 03:15:19,666 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:15:19,666 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:15:19,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 03:15:19,666 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:15:19,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:15:19,666 INFO L85 PathProgramCache]: Analyzing trace with hash -211366857, now seen corresponding path program 1 times [2022-12-14 03:15:19,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:15:19,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130512463] [2022-12-14 03:15:19,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:15:19,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:15:19,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:15:19,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:15:19,758 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:15:19,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130512463] [2022-12-14 03:15:19,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130512463] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:15:19,758 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:15:19,758 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 03:15:19,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122062622] [2022-12-14 03:15:19,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:15:19,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 03:15:19,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:15:19,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 03:15:19,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 03:15:19,760 INFO L87 Difference]: Start difference. First operand 1195 states and 1633 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:20,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:15:20,219 INFO L93 Difference]: Finished difference Result 1426 states and 1892 transitions. [2022-12-14 03:15:20,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 03:15:20,220 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2022-12-14 03:15:20,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:15:20,222 INFO L225 Difference]: With dead ends: 1426 [2022-12-14 03:15:20,222 INFO L226 Difference]: Without dead ends: 842 [2022-12-14 03:15:20,223 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 [2022-12-14 03:15:20,224 INFO L413 NwaCegarLoop]: 389 mSDtfsCounter, 2260 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2260 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-14 03:15:20,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2260 Valid, 425 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-14 03:15:20,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 842 states. [2022-12-14 03:15:20,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 842 to 842. [2022-12-14 03:15:20,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 842 states, 820 states have (on average 1.3926829268292682) internal successors, (1142), 841 states have internal predecessors, (1142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:20,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1142 transitions. [2022-12-14 03:15:20,282 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1142 transitions. Word has length 88 [2022-12-14 03:15:20,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:15:20,282 INFO L495 AbstractCegarLoop]: Abstraction has 842 states and 1142 transitions. [2022-12-14 03:15:20,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:20,282 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1142 transitions. [2022-12-14 03:15:20,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-12-14 03:15:20,284 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:15:20,284 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:15:20,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 03:15:20,285 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:15:20,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:15:20,285 INFO L85 PathProgramCache]: Analyzing trace with hash 328508839, now seen corresponding path program 1 times [2022-12-14 03:15:20,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:15:20,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310312376] [2022-12-14 03:15:20,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:15:20,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:15:20,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:15:20,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:15:20,647 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:15:20,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310312376] [2022-12-14 03:15:20,647 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310312376] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:15:20,647 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:15:20,647 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-14 03:15:20,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86400050] [2022-12-14 03:15:20,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:15:20,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-14 03:15:20,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:15:20,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-14 03:15:20,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-12-14 03:15:20,649 INFO L87 Difference]: Start difference. First operand 842 states and 1142 transitions. Second operand has 11 states, 11 states have (on average 8.090909090909092) internal successors, (89), 10 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:22,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:15:22,185 INFO L93 Difference]: Finished difference Result 1621 states and 2168 transitions. [2022-12-14 03:15:22,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-14 03:15:22,186 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.090909090909092) internal successors, (89), 10 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2022-12-14 03:15:22,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:15:22,189 INFO L225 Difference]: With dead ends: 1621 [2022-12-14 03:15:22,189 INFO L226 Difference]: Without dead ends: 1517 [2022-12-14 03:15:22,190 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=488, Unknown=0, NotChecked=0, Total=650 [2022-12-14 03:15:22,190 INFO L413 NwaCegarLoop]: 452 mSDtfsCounter, 2335 mSDsluCounter, 2560 mSDsCounter, 0 mSdLazyCounter, 2926 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2335 SdHoareTripleChecker+Valid, 3012 SdHoareTripleChecker+Invalid, 2934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2926 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-14 03:15:22,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2335 Valid, 3012 Invalid, 2934 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 2926 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-14 03:15:22,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1517 states. [2022-12-14 03:15:22,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1517 to 855. [2022-12-14 03:15:22,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 855 states, 833 states have (on average 1.3937575030012004) internal successors, (1161), 854 states have internal predecessors, (1161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:22,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 855 states to 855 states and 1161 transitions. [2022-12-14 03:15:22,239 INFO L78 Accepts]: Start accepts. Automaton has 855 states and 1161 transitions. Word has length 89 [2022-12-14 03:15:22,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:15:22,239 INFO L495 AbstractCegarLoop]: Abstraction has 855 states and 1161 transitions. [2022-12-14 03:15:22,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.090909090909092) internal successors, (89), 10 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:22,239 INFO L276 IsEmpty]: Start isEmpty. Operand 855 states and 1161 transitions. [2022-12-14 03:15:22,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-12-14 03:15:22,240 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:15:22,240 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:15:22,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 03:15:22,241 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:15:22,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:15:22,241 INFO L85 PathProgramCache]: Analyzing trace with hash 1518979119, now seen corresponding path program 1 times [2022-12-14 03:15:22,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:15:22,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100935294] [2022-12-14 03:15:22,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:15:22,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:15:22,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:15:22,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:15:22,483 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:15:22,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100935294] [2022-12-14 03:15:22,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100935294] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:15:22,484 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:15:22,484 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 03:15:22,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120464576] [2022-12-14 03:15:22,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:15:22,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 03:15:22,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:15:22,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 03:15:22,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-14 03:15:22,485 INFO L87 Difference]: Start difference. First operand 855 states and 1161 transitions. Second operand has 8 states, 8 states have (on average 11.125) internal successors, (89), 7 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:23,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:15:23,682 INFO L93 Difference]: Finished difference Result 1468 states and 1970 transitions. [2022-12-14 03:15:23,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 03:15:23,682 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 7 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2022-12-14 03:15:23,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:15:23,685 INFO L225 Difference]: With dead ends: 1468 [2022-12-14 03:15:23,685 INFO L226 Difference]: Without dead ends: 1262 [2022-12-14 03:15:23,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2022-12-14 03:15:23,686 INFO L413 NwaCegarLoop]: 499 mSDtfsCounter, 2812 mSDsluCounter, 1962 mSDsCounter, 0 mSdLazyCounter, 2188 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2812 SdHoareTripleChecker+Valid, 2461 SdHoareTripleChecker+Invalid, 2192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-14 03:15:23,686 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2812 Valid, 2461 Invalid, 2192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2188 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-14 03:15:23,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1262 states. [2022-12-14 03:15:23,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1262 to 842. [2022-12-14 03:15:23,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 842 states, 820 states have (on average 1.3914634146341462) internal successors, (1141), 841 states have internal predecessors, (1141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:23,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1141 transitions. [2022-12-14 03:15:23,780 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1141 transitions. Word has length 89 [2022-12-14 03:15:23,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:15:23,780 INFO L495 AbstractCegarLoop]: Abstraction has 842 states and 1141 transitions. [2022-12-14 03:15:23,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 7 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:23,780 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1141 transitions. [2022-12-14 03:15:23,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-12-14 03:15:23,782 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:15:23,783 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:15:23,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 03:15:23,783 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:15:23,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:15:23,784 INFO L85 PathProgramCache]: Analyzing trace with hash -1669555108, now seen corresponding path program 1 times [2022-12-14 03:15:23,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:15:23,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607986683] [2022-12-14 03:15:23,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:15:23,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:15:23,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:15:24,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:15:24,072 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:15:24,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607986683] [2022-12-14 03:15:24,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607986683] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:15:24,072 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:15:24,072 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 03:15:24,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852946165] [2022-12-14 03:15:24,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:15:24,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 03:15:24,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:15:24,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 03:15:24,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-14 03:15:24,073 INFO L87 Difference]: Start difference. First operand 842 states and 1141 transitions. Second operand has 8 states, 8 states have (on average 11.125) internal successors, (89), 7 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:25,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:15:25,353 INFO L93 Difference]: Finished difference Result 1639 states and 2219 transitions. [2022-12-14 03:15:25,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 03:15:25,354 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 7 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2022-12-14 03:15:25,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:15:25,357 INFO L225 Difference]: With dead ends: 1639 [2022-12-14 03:15:25,357 INFO L226 Difference]: Without dead ends: 1497 [2022-12-14 03:15:25,358 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2022-12-14 03:15:25,358 INFO L413 NwaCegarLoop]: 639 mSDtfsCounter, 2662 mSDsluCounter, 2288 mSDsCounter, 0 mSdLazyCounter, 2410 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2662 SdHoareTripleChecker+Valid, 2927 SdHoareTripleChecker+Invalid, 2414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-14 03:15:25,358 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2662 Valid, 2927 Invalid, 2414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2410 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-14 03:15:25,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1497 states. [2022-12-14 03:15:25,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1497 to 842. [2022-12-14 03:15:25,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 842 states, 820 states have (on average 1.3902439024390243) internal successors, (1140), 841 states have internal predecessors, (1140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:25,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1140 transitions. [2022-12-14 03:15:25,418 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1140 transitions. Word has length 89 [2022-12-14 03:15:25,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:15:25,418 INFO L495 AbstractCegarLoop]: Abstraction has 842 states and 1140 transitions. [2022-12-14 03:15:25,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 7 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:25,418 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1140 transitions. [2022-12-14 03:15:25,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-12-14 03:15:25,419 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:15:25,419 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:15:25,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 03:15:25,420 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:15:25,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:15:25,420 INFO L85 PathProgramCache]: Analyzing trace with hash 231777635, now seen corresponding path program 1 times [2022-12-14 03:15:25,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:15:25,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031930040] [2022-12-14 03:15:25,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:15:25,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:15:25,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:15:25,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:15:25,691 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:15:25,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031930040] [2022-12-14 03:15:25,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031930040] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:15:25,691 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:15:25,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 03:15:25,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282343529] [2022-12-14 03:15:25,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:15:25,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 03:15:25,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:15:25,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 03:15:25,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-14 03:15:25,693 INFO L87 Difference]: Start difference. First operand 842 states and 1140 transitions. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 6 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:26,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:15:26,372 INFO L93 Difference]: Finished difference Result 1471 states and 1911 transitions. [2022-12-14 03:15:26,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 03:15:26,373 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 6 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2022-12-14 03:15:26,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:15:26,375 INFO L225 Difference]: With dead ends: 1471 [2022-12-14 03:15:26,375 INFO L226 Difference]: Without dead ends: 1107 [2022-12-14 03:15:26,375 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2022-12-14 03:15:26,376 INFO L413 NwaCegarLoop]: 366 mSDtfsCounter, 2349 mSDsluCounter, 824 mSDsCounter, 0 mSdLazyCounter, 1191 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2349 SdHoareTripleChecker+Valid, 1190 SdHoareTripleChecker+Invalid, 1192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-14 03:15:26,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2349 Valid, 1190 Invalid, 1192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1191 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-14 03:15:26,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1107 states. [2022-12-14 03:15:26,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1107 to 842. [2022-12-14 03:15:26,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 842 states, 820 states have (on average 1.3890243902439023) internal successors, (1139), 841 states have internal predecessors, (1139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:26,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1139 transitions. [2022-12-14 03:15:26,441 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1139 transitions. Word has length 89 [2022-12-14 03:15:26,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:15:26,441 INFO L495 AbstractCegarLoop]: Abstraction has 842 states and 1139 transitions. [2022-12-14 03:15:26,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 6 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:26,441 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1139 transitions. [2022-12-14 03:15:26,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-12-14 03:15:26,442 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:15:26,442 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:15:26,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 03:15:26,442 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:15:26,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:15:26,443 INFO L85 PathProgramCache]: Analyzing trace with hash 1427714440, now seen corresponding path program 1 times [2022-12-14 03:15:26,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:15:26,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141263986] [2022-12-14 03:15:26,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:15:26,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:15:26,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:15:26,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:15:26,617 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:15:26,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141263986] [2022-12-14 03:15:26,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141263986] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:15:26,617 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:15:26,617 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 03:15:26,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952653233] [2022-12-14 03:15:26,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:15:26,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 03:15:26,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:15:26,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 03:15:26,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 03:15:26,619 INFO L87 Difference]: Start difference. First operand 842 states and 1139 transitions. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:27,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:15:27,708 INFO L93 Difference]: Finished difference Result 1560 states and 2089 transitions. [2022-12-14 03:15:27,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 03:15:27,708 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-12-14 03:15:27,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:15:27,711 INFO L225 Difference]: With dead ends: 1560 [2022-12-14 03:15:27,711 INFO L226 Difference]: Without dead ends: 1450 [2022-12-14 03:15:27,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-12-14 03:15:27,712 INFO L413 NwaCegarLoop]: 459 mSDtfsCounter, 2214 mSDsluCounter, 1472 mSDsCounter, 0 mSdLazyCounter, 1759 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2214 SdHoareTripleChecker+Valid, 1931 SdHoareTripleChecker+Invalid, 1763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-14 03:15:27,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2214 Valid, 1931 Invalid, 1763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1759 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-14 03:15:27,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1450 states. [2022-12-14 03:15:27,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1450 to 842. [2022-12-14 03:15:27,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 842 states, 820 states have (on average 1.3865853658536584) internal successors, (1137), 841 states have internal predecessors, (1137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:27,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1137 transitions. [2022-12-14 03:15:27,797 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1137 transitions. Word has length 91 [2022-12-14 03:15:27,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:15:27,797 INFO L495 AbstractCegarLoop]: Abstraction has 842 states and 1137 transitions. [2022-12-14 03:15:27,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:27,797 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1137 transitions. [2022-12-14 03:15:27,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-12-14 03:15:27,798 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:15:27,798 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:15:27,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-14 03:15:27,799 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:15:27,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:15:27,799 INFO L85 PathProgramCache]: Analyzing trace with hash 1221078273, now seen corresponding path program 1 times [2022-12-14 03:15:27,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:15:27,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724859799] [2022-12-14 03:15:27,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:15:27,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:15:27,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:15:28,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:15:28,026 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:15:28,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724859799] [2022-12-14 03:15:28,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724859799] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:15:28,026 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:15:28,027 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 03:15:28,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815975977] [2022-12-14 03:15:28,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:15:28,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 03:15:28,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:15:28,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 03:15:28,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 03:15:28,028 INFO L87 Difference]: Start difference. First operand 842 states and 1137 transitions. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:29,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:15:29,089 INFO L93 Difference]: Finished difference Result 1407 states and 1860 transitions. [2022-12-14 03:15:29,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 03:15:29,090 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-12-14 03:15:29,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:15:29,092 INFO L225 Difference]: With dead ends: 1407 [2022-12-14 03:15:29,092 INFO L226 Difference]: Without dead ends: 1402 [2022-12-14 03:15:29,092 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-12-14 03:15:29,093 INFO L413 NwaCegarLoop]: 453 mSDtfsCounter, 2235 mSDsluCounter, 1395 mSDsCounter, 0 mSdLazyCounter, 1727 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2235 SdHoareTripleChecker+Valid, 1848 SdHoareTripleChecker+Invalid, 1731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1727 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-14 03:15:29,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2235 Valid, 1848 Invalid, 1731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1727 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-14 03:15:29,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1402 states. [2022-12-14 03:15:29,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1402 to 842. [2022-12-14 03:15:29,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 842 states, 820 states have (on average 1.3841463414634145) internal successors, (1135), 841 states have internal predecessors, (1135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:29,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1135 transitions. [2022-12-14 03:15:29,174 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1135 transitions. Word has length 91 [2022-12-14 03:15:29,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:15:29,174 INFO L495 AbstractCegarLoop]: Abstraction has 842 states and 1135 transitions. [2022-12-14 03:15:29,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:29,175 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1135 transitions. [2022-12-14 03:15:29,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-12-14 03:15:29,175 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:15:29,175 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:15:29,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-14 03:15:29,176 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:15:29,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:15:29,176 INFO L85 PathProgramCache]: Analyzing trace with hash 207011855, now seen corresponding path program 1 times [2022-12-14 03:15:29,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:15:29,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69715914] [2022-12-14 03:15:29,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:15:29,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:15:29,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:15:29,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:15:29,368 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:15:29,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69715914] [2022-12-14 03:15:29,368 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69715914] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:15:29,368 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:15:29,369 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 03:15:29,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822512008] [2022-12-14 03:15:29,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:15:29,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 03:15:29,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:15:29,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 03:15:29,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-14 03:15:29,370 INFO L87 Difference]: Start difference. First operand 842 states and 1135 transitions. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:30,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:15:30,635 INFO L93 Difference]: Finished difference Result 1687 states and 2274 transitions. [2022-12-14 03:15:30,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 03:15:30,636 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-12-14 03:15:30,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:15:30,638 INFO L225 Difference]: With dead ends: 1687 [2022-12-14 03:15:30,638 INFO L226 Difference]: Without dead ends: 1497 [2022-12-14 03:15:30,639 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2022-12-14 03:15:30,639 INFO L413 NwaCegarLoop]: 651 mSDtfsCounter, 2629 mSDsluCounter, 2294 mSDsCounter, 0 mSdLazyCounter, 2393 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2629 SdHoareTripleChecker+Valid, 2945 SdHoareTripleChecker+Invalid, 2397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-14 03:15:30,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2629 Valid, 2945 Invalid, 2397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2393 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-14 03:15:30,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1497 states. [2022-12-14 03:15:30,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1497 to 842. [2022-12-14 03:15:30,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 842 states, 820 states have (on average 1.3817073170731706) internal successors, (1133), 841 states have internal predecessors, (1133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:30,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1133 transitions. [2022-12-14 03:15:30,729 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1133 transitions. Word has length 91 [2022-12-14 03:15:30,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:15:30,729 INFO L495 AbstractCegarLoop]: Abstraction has 842 states and 1133 transitions. [2022-12-14 03:15:30,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:30,729 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1133 transitions. [2022-12-14 03:15:30,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-12-14 03:15:30,730 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:15:30,730 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:15:30,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-14 03:15:30,730 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:15:30,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:15:30,731 INFO L85 PathProgramCache]: Analyzing trace with hash -982216986, now seen corresponding path program 1 times [2022-12-14 03:15:30,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:15:30,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939388679] [2022-12-14 03:15:30,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:15:30,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:15:30,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:15:30,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:15:30,952 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:15:30,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939388679] [2022-12-14 03:15:30,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939388679] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:15:30,952 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:15:30,952 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-14 03:15:30,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899450494] [2022-12-14 03:15:30,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:15:30,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-14 03:15:30,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:15:30,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-14 03:15:30,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-12-14 03:15:30,954 INFO L87 Difference]: Start difference. First operand 842 states and 1133 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:32,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:15:32,449 INFO L93 Difference]: Finished difference Result 1688 states and 2244 transitions. [2022-12-14 03:15:32,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-14 03:15:32,449 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-12-14 03:15:32,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:15:32,452 INFO L225 Difference]: With dead ends: 1688 [2022-12-14 03:15:32,452 INFO L226 Difference]: Without dead ends: 1572 [2022-12-14 03:15:32,452 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=488, Unknown=0, NotChecked=0, Total=650 [2022-12-14 03:15:32,453 INFO L413 NwaCegarLoop]: 453 mSDtfsCounter, 4507 mSDsluCounter, 1906 mSDsCounter, 0 mSdLazyCounter, 2087 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4507 SdHoareTripleChecker+Valid, 2359 SdHoareTripleChecker+Invalid, 2101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 2087 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-14 03:15:32,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4507 Valid, 2359 Invalid, 2101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 2087 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-14 03:15:32,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1572 states. [2022-12-14 03:15:32,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1572 to 868. [2022-12-14 03:15:32,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 868 states, 846 states have (on average 1.384160756501182) internal successors, (1171), 867 states have internal predecessors, (1171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:32,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 868 states to 868 states and 1171 transitions. [2022-12-14 03:15:32,600 INFO L78 Accepts]: Start accepts. Automaton has 868 states and 1171 transitions. Word has length 91 [2022-12-14 03:15:32,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:15:32,600 INFO L495 AbstractCegarLoop]: Abstraction has 868 states and 1171 transitions. [2022-12-14 03:15:32,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:32,600 INFO L276 IsEmpty]: Start isEmpty. Operand 868 states and 1171 transitions. [2022-12-14 03:15:32,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-12-14 03:15:32,601 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:15:32,601 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:15:32,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-14 03:15:32,601 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:15:32,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:15:32,602 INFO L85 PathProgramCache]: Analyzing trace with hash 1680995533, now seen corresponding path program 1 times [2022-12-14 03:15:32,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:15:32,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545959279] [2022-12-14 03:15:32,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:15:32,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:15:32,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:15:32,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:15:32,773 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:15:32,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545959279] [2022-12-14 03:15:32,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545959279] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:15:32,773 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:15:32,773 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 03:15:32,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491399351] [2022-12-14 03:15:32,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:15:32,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 03:15:32,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:15:32,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 03:15:32,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 03:15:32,774 INFO L87 Difference]: Start difference. First operand 868 states and 1171 transitions. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:33,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:15:33,529 INFO L93 Difference]: Finished difference Result 1288 states and 1732 transitions. [2022-12-14 03:15:33,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-14 03:15:33,530 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-12-14 03:15:33,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:15:33,535 INFO L225 Difference]: With dead ends: 1288 [2022-12-14 03:15:33,535 INFO L226 Difference]: Without dead ends: 942 [2022-12-14 03:15:33,535 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2022-12-14 03:15:33,536 INFO L413 NwaCegarLoop]: 475 mSDtfsCounter, 1707 mSDsluCounter, 1363 mSDsCounter, 0 mSdLazyCounter, 1647 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1707 SdHoareTripleChecker+Valid, 1838 SdHoareTripleChecker+Invalid, 1652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1647 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-14 03:15:33,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1707 Valid, 1838 Invalid, 1652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1647 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-14 03:15:33,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 942 states. [2022-12-14 03:15:33,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 942 to 842. [2022-12-14 03:15:33,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 842 states, 820 states have (on average 1.3792682926829267) internal successors, (1131), 841 states have internal predecessors, (1131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:33,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1131 transitions. [2022-12-14 03:15:33,686 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1131 transitions. Word has length 91 [2022-12-14 03:15:33,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:15:33,686 INFO L495 AbstractCegarLoop]: Abstraction has 842 states and 1131 transitions. [2022-12-14 03:15:33,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:33,686 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1131 transitions. [2022-12-14 03:15:33,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-12-14 03:15:33,688 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:15:33,688 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:15:33,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-14 03:15:33,688 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:15:33,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:15:33,689 INFO L85 PathProgramCache]: Analyzing trace with hash -1988895487, now seen corresponding path program 1 times [2022-12-14 03:15:33,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:15:33,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875565086] [2022-12-14 03:15:33,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:15:33,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:15:33,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:15:33,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:15:33,843 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:15:33,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875565086] [2022-12-14 03:15:33,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875565086] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:15:33,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:15:33,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 03:15:33,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680853492] [2022-12-14 03:15:33,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:15:33,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 03:15:33,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:15:33,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 03:15:33,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 03:15:33,845 INFO L87 Difference]: Start difference. First operand 842 states and 1131 transitions. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:34,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:15:34,943 INFO L93 Difference]: Finished difference Result 1554 states and 2070 transitions. [2022-12-14 03:15:34,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 03:15:34,944 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-12-14 03:15:34,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:15:34,946 INFO L225 Difference]: With dead ends: 1554 [2022-12-14 03:15:34,946 INFO L226 Difference]: Without dead ends: 1450 [2022-12-14 03:15:34,946 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-12-14 03:15:34,947 INFO L413 NwaCegarLoop]: 459 mSDtfsCounter, 2202 mSDsluCounter, 1472 mSDsCounter, 0 mSdLazyCounter, 1747 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2202 SdHoareTripleChecker+Valid, 1931 SdHoareTripleChecker+Invalid, 1751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-14 03:15:34,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2202 Valid, 1931 Invalid, 1751 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1747 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-14 03:15:34,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1450 states. [2022-12-14 03:15:35,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1450 to 842. [2022-12-14 03:15:35,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 842 states, 820 states have (on average 1.3780487804878048) internal successors, (1130), 841 states have internal predecessors, (1130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:35,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1130 transitions. [2022-12-14 03:15:35,048 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1130 transitions. Word has length 91 [2022-12-14 03:15:35,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:15:35,049 INFO L495 AbstractCegarLoop]: Abstraction has 842 states and 1130 transitions. [2022-12-14 03:15:35,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:35,049 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1130 transitions. [2022-12-14 03:15:35,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-12-14 03:15:35,049 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:15:35,050 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:15:35,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-14 03:15:35,050 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:15:35,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:15:35,050 INFO L85 PathProgramCache]: Analyzing trace with hash 646324256, now seen corresponding path program 1 times [2022-12-14 03:15:35,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:15:35,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124288412] [2022-12-14 03:15:35,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:15:35,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:15:35,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:15:35,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:15:35,213 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:15:35,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124288412] [2022-12-14 03:15:35,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124288412] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:15:35,214 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:15:35,214 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 03:15:35,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739526280] [2022-12-14 03:15:35,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:15:35,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 03:15:35,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:15:35,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 03:15:35,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 03:15:35,215 INFO L87 Difference]: Start difference. First operand 842 states and 1130 transitions. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:36,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:15:36,632 INFO L93 Difference]: Finished difference Result 1550 states and 2065 transitions. [2022-12-14 03:15:36,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 03:15:36,632 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-12-14 03:15:36,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:15:36,637 INFO L225 Difference]: With dead ends: 1550 [2022-12-14 03:15:36,637 INFO L226 Difference]: Without dead ends: 1450 [2022-12-14 03:15:36,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-12-14 03:15:36,637 INFO L413 NwaCegarLoop]: 451 mSDtfsCounter, 3349 mSDsluCounter, 1451 mSDsCounter, 0 mSdLazyCounter, 1735 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3349 SdHoareTripleChecker+Valid, 1902 SdHoareTripleChecker+Invalid, 1739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1735 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-14 03:15:36,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3349 Valid, 1902 Invalid, 1739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1735 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-14 03:15:36,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1450 states. [2022-12-14 03:15:36,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1450 to 842. [2022-12-14 03:15:36,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 842 states, 820 states have (on average 1.3768292682926828) internal successors, (1129), 841 states have internal predecessors, (1129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:36,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1129 transitions. [2022-12-14 03:15:36,743 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1129 transitions. Word has length 91 [2022-12-14 03:15:36,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:15:36,743 INFO L495 AbstractCegarLoop]: Abstraction has 842 states and 1129 transitions. [2022-12-14 03:15:36,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:36,743 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1129 transitions. [2022-12-14 03:15:36,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-12-14 03:15:36,744 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:15:36,744 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:15:36,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-14 03:15:36,744 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:15:36,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:15:36,744 INFO L85 PathProgramCache]: Analyzing trace with hash 850721804, now seen corresponding path program 1 times [2022-12-14 03:15:36,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:15:36,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847008516] [2022-12-14 03:15:36,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:15:36,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:15:36,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:15:36,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:15:36,892 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:15:36,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847008516] [2022-12-14 03:15:36,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847008516] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:15:36,892 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:15:36,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 03:15:36,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156688066] [2022-12-14 03:15:36,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:15:36,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 03:15:36,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:15:36,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 03:15:36,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 03:15:36,893 INFO L87 Difference]: Start difference. First operand 842 states and 1129 transitions. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:38,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:15:38,065 INFO L93 Difference]: Finished difference Result 1554 states and 2067 transitions. [2022-12-14 03:15:38,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 03:15:38,065 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-12-14 03:15:38,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:15:38,067 INFO L225 Difference]: With dead ends: 1554 [2022-12-14 03:15:38,067 INFO L226 Difference]: Without dead ends: 1450 [2022-12-14 03:15:38,068 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-12-14 03:15:38,068 INFO L413 NwaCegarLoop]: 459 mSDtfsCounter, 3306 mSDsluCounter, 1470 mSDsCounter, 0 mSdLazyCounter, 1735 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3306 SdHoareTripleChecker+Valid, 1929 SdHoareTripleChecker+Invalid, 1739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1735 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-14 03:15:38,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3306 Valid, 1929 Invalid, 1739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1735 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-14 03:15:38,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1450 states. [2022-12-14 03:15:38,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1450 to 842. [2022-12-14 03:15:38,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 842 states, 820 states have (on average 1.3756097560975609) internal successors, (1128), 841 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:38,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1128 transitions. [2022-12-14 03:15:38,177 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1128 transitions. Word has length 91 [2022-12-14 03:15:38,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:15:38,178 INFO L495 AbstractCegarLoop]: Abstraction has 842 states and 1128 transitions. [2022-12-14 03:15:38,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:38,178 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1128 transitions. [2022-12-14 03:15:38,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-12-14 03:15:38,178 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:15:38,178 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:15:38,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-14 03:15:38,179 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:15:38,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:15:38,179 INFO L85 PathProgramCache]: Analyzing trace with hash 2041192084, now seen corresponding path program 1 times [2022-12-14 03:15:38,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:15:38,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060075821] [2022-12-14 03:15:38,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:15:38,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:15:38,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:15:38,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:15:38,460 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:15:38,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060075821] [2022-12-14 03:15:38,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060075821] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:15:38,460 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:15:38,460 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-14 03:15:38,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414310140] [2022-12-14 03:15:38,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:15:38,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-14 03:15:38,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:15:38,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-14 03:15:38,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-12-14 03:15:38,461 INFO L87 Difference]: Start difference. First operand 842 states and 1128 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:41,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:15:41,458 INFO L93 Difference]: Finished difference Result 2199 states and 2948 transitions. [2022-12-14 03:15:41,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-14 03:15:41,458 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-12-14 03:15:41,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:15:41,464 INFO L225 Difference]: With dead ends: 2199 [2022-12-14 03:15:41,464 INFO L226 Difference]: Without dead ends: 2043 [2022-12-14 03:15:41,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2022-12-14 03:15:41,465 INFO L413 NwaCegarLoop]: 777 mSDtfsCounter, 5014 mSDsluCounter, 3169 mSDsCounter, 0 mSdLazyCounter, 3673 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5014 SdHoareTripleChecker+Valid, 3946 SdHoareTripleChecker+Invalid, 3875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 3673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-12-14 03:15:41,465 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5014 Valid, 3946 Invalid, 3875 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 3673 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-12-14 03:15:41,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2043 states. [2022-12-14 03:15:41,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2043 to 846. [2022-12-14 03:15:41,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 846 states, 824 states have (on average 1.3737864077669903) internal successors, (1132), 845 states have internal predecessors, (1132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:41,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 846 states to 846 states and 1132 transitions. [2022-12-14 03:15:41,611 INFO L78 Accepts]: Start accepts. Automaton has 846 states and 1132 transitions. Word has length 91 [2022-12-14 03:15:41,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:15:41,612 INFO L495 AbstractCegarLoop]: Abstraction has 846 states and 1132 transitions. [2022-12-14 03:15:41,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:41,612 INFO L276 IsEmpty]: Start isEmpty. Operand 846 states and 1132 transitions. [2022-12-14 03:15:41,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-12-14 03:15:41,613 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:15:41,613 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:15:41,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-14 03:15:41,614 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:15:41,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:15:41,614 INFO L85 PathProgramCache]: Analyzing trace with hash 119251772, now seen corresponding path program 1 times [2022-12-14 03:15:41,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:15:41,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132546921] [2022-12-14 03:15:41,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:15:41,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:15:41,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:15:41,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:15:41,759 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:15:41,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132546921] [2022-12-14 03:15:41,759 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132546921] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:15:41,759 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:15:41,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 03:15:41,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908029055] [2022-12-14 03:15:41,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:15:41,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 03:15:41,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:15:41,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 03:15:41,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 03:15:41,761 INFO L87 Difference]: Start difference. First operand 846 states and 1132 transitions. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:43,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:15:43,235 INFO L93 Difference]: Finished difference Result 1653 states and 2218 transitions. [2022-12-14 03:15:43,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 03:15:43,236 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2022-12-14 03:15:43,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:15:43,238 INFO L225 Difference]: With dead ends: 1653 [2022-12-14 03:15:43,238 INFO L226 Difference]: Without dead ends: 1497 [2022-12-14 03:15:43,239 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-12-14 03:15:43,239 INFO L413 NwaCegarLoop]: 704 mSDtfsCounter, 1837 mSDsluCounter, 2053 mSDsCounter, 0 mSdLazyCounter, 2358 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1837 SdHoareTripleChecker+Valid, 2757 SdHoareTripleChecker+Invalid, 2361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-14 03:15:43,239 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1837 Valid, 2757 Invalid, 2361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2358 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-14 03:15:43,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1497 states. [2022-12-14 03:15:43,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1497 to 842. [2022-12-14 03:15:43,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 842 states, 820 states have (on average 1.3743902439024391) internal successors, (1127), 841 states have internal predecessors, (1127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:43,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1127 transitions. [2022-12-14 03:15:43,385 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1127 transitions. Word has length 92 [2022-12-14 03:15:43,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:15:43,385 INFO L495 AbstractCegarLoop]: Abstraction has 842 states and 1127 transitions. [2022-12-14 03:15:43,385 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:43,386 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1127 transitions. [2022-12-14 03:15:43,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-12-14 03:15:43,386 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:15:43,386 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:15:43,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-14 03:15:43,387 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:15:43,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:15:43,387 INFO L85 PathProgramCache]: Analyzing trace with hash -1474627327, now seen corresponding path program 1 times [2022-12-14 03:15:43,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:15:43,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31076930] [2022-12-14 03:15:43,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:15:43,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:15:43,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:15:43,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:15:43,548 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:15:43,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31076930] [2022-12-14 03:15:43,549 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31076930] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:15:43,549 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:15:43,549 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 03:15:43,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916094692] [2022-12-14 03:15:43,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:15:43,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 03:15:43,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:15:43,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 03:15:43,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 03:15:43,550 INFO L87 Difference]: Start difference. First operand 842 states and 1127 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:44,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:15:44,608 INFO L93 Difference]: Finished difference Result 1566 states and 2079 transitions. [2022-12-14 03:15:44,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 03:15:44,608 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2022-12-14 03:15:44,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:15:44,610 INFO L225 Difference]: With dead ends: 1566 [2022-12-14 03:15:44,610 INFO L226 Difference]: Without dead ends: 1450 [2022-12-14 03:15:44,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-12-14 03:15:44,611 INFO L413 NwaCegarLoop]: 443 mSDtfsCounter, 3517 mSDsluCounter, 1415 mSDsCounter, 0 mSdLazyCounter, 1571 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3517 SdHoareTripleChecker+Valid, 1858 SdHoareTripleChecker+Invalid, 1577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-14 03:15:44,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3517 Valid, 1858 Invalid, 1577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1571 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-14 03:15:44,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1450 states. [2022-12-14 03:15:44,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1450 to 842. [2022-12-14 03:15:44,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 842 states, 820 states have (on average 1.3719512195121952) internal successors, (1125), 841 states have internal predecessors, (1125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:44,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1125 transitions. [2022-12-14 03:15:44,764 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1125 transitions. Word has length 93 [2022-12-14 03:15:44,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:15:44,765 INFO L495 AbstractCegarLoop]: Abstraction has 842 states and 1125 transitions. [2022-12-14 03:15:44,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:44,765 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1125 transitions. [2022-12-14 03:15:44,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-12-14 03:15:44,766 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:15:44,766 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:15:44,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-14 03:15:44,767 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:15:44,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:15:44,767 INFO L85 PathProgramCache]: Analyzing trace with hash 1188585192, now seen corresponding path program 1 times [2022-12-14 03:15:44,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:15:44,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521054451] [2022-12-14 03:15:44,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:15:44,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:15:44,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:15:44,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:15:44,918 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:15:44,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521054451] [2022-12-14 03:15:44,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521054451] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:15:44,918 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:15:44,919 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 03:15:44,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373894825] [2022-12-14 03:15:44,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:15:44,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 03:15:44,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:15:44,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 03:15:44,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-12-14 03:15:44,920 INFO L87 Difference]: Start difference. First operand 842 states and 1125 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:46,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:15:46,386 INFO L93 Difference]: Finished difference Result 1622 states and 2164 transitions. [2022-12-14 03:15:46,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 03:15:46,386 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2022-12-14 03:15:46,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:15:46,388 INFO L225 Difference]: With dead ends: 1622 [2022-12-14 03:15:46,389 INFO L226 Difference]: Without dead ends: 1474 [2022-12-14 03:15:46,389 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 [2022-12-14 03:15:46,389 INFO L413 NwaCegarLoop]: 674 mSDtfsCounter, 2657 mSDsluCounter, 1837 mSDsCounter, 0 mSdLazyCounter, 1905 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2657 SdHoareTripleChecker+Valid, 2511 SdHoareTripleChecker+Invalid, 1910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1905 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-14 03:15:46,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2657 Valid, 2511 Invalid, 1910 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1905 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-14 03:15:46,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1474 states. [2022-12-14 03:15:46,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1474 to 842. [2022-12-14 03:15:46,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 842 states, 820 states have (on average 1.3695121951219513) internal successors, (1123), 841 states have internal predecessors, (1123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:46,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1123 transitions. [2022-12-14 03:15:46,549 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1123 transitions. Word has length 93 [2022-12-14 03:15:46,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:15:46,549 INFO L495 AbstractCegarLoop]: Abstraction has 842 states and 1123 transitions. [2022-12-14 03:15:46,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:46,550 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1123 transitions. [2022-12-14 03:15:46,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-12-14 03:15:46,551 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:15:46,551 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:15:46,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-14 03:15:46,551 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:15:46,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:15:46,552 INFO L85 PathProgramCache]: Analyzing trace with hash -281811597, now seen corresponding path program 1 times [2022-12-14 03:15:46,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:15:46,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893088518] [2022-12-14 03:15:46,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:15:46,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:15:46,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:15:46,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:15:46,701 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:15:46,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893088518] [2022-12-14 03:15:46,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893088518] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:15:46,701 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:15:46,701 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 03:15:46,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344775714] [2022-12-14 03:15:46,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:15:46,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 03:15:46,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:15:46,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 03:15:46,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 03:15:46,702 INFO L87 Difference]: Start difference. First operand 842 states and 1123 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:48,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:15:48,061 INFO L93 Difference]: Finished difference Result 1502 states and 1973 transitions. [2022-12-14 03:15:48,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 03:15:48,061 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2022-12-14 03:15:48,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:15:48,063 INFO L225 Difference]: With dead ends: 1502 [2022-12-14 03:15:48,063 INFO L226 Difference]: Without dead ends: 1402 [2022-12-14 03:15:48,063 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-12-14 03:15:48,064 INFO L413 NwaCegarLoop]: 488 mSDtfsCounter, 2145 mSDsluCounter, 1499 mSDsCounter, 0 mSdLazyCounter, 1790 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2145 SdHoareTripleChecker+Valid, 1987 SdHoareTripleChecker+Invalid, 1794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1790 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-14 03:15:48,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2145 Valid, 1987 Invalid, 1794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1790 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-14 03:15:48,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1402 states. [2022-12-14 03:15:48,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1402 to 842. [2022-12-14 03:15:48,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 842 states, 820 states have (on average 1.3670731707317074) internal successors, (1121), 841 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:48,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1121 transitions. [2022-12-14 03:15:48,226 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1121 transitions. Word has length 93 [2022-12-14 03:15:48,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:15:48,226 INFO L495 AbstractCegarLoop]: Abstraction has 842 states and 1121 transitions. [2022-12-14 03:15:48,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:48,227 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1121 transitions. [2022-12-14 03:15:48,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-12-14 03:15:48,227 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:15:48,227 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:15:48,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-14 03:15:48,228 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:15:48,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:15:48,228 INFO L85 PathProgramCache]: Analyzing trace with hash -610424553, now seen corresponding path program 1 times [2022-12-14 03:15:48,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:15:48,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136511903] [2022-12-14 03:15:48,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:15:48,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:15:48,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:15:48,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:15:48,494 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:15:48,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136511903] [2022-12-14 03:15:48,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136511903] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:15:48,494 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:15:48,494 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-14 03:15:48,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672287002] [2022-12-14 03:15:48,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:15:48,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-14 03:15:48,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:15:48,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-14 03:15:48,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-12-14 03:15:48,496 INFO L87 Difference]: Start difference. First operand 842 states and 1121 transitions. Second operand has 11 states, 11 states have (on average 8.454545454545455) internal successors, (93), 10 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:51,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:15:51,288 INFO L93 Difference]: Finished difference Result 2351 states and 3139 transitions. [2022-12-14 03:15:51,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-14 03:15:51,288 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.454545454545455) internal successors, (93), 10 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2022-12-14 03:15:51,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:15:51,291 INFO L225 Difference]: With dead ends: 2351 [2022-12-14 03:15:51,291 INFO L226 Difference]: Without dead ends: 2129 [2022-12-14 03:15:51,291 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2022-12-14 03:15:51,292 INFO L413 NwaCegarLoop]: 789 mSDtfsCounter, 5030 mSDsluCounter, 3172 mSDsCounter, 0 mSdLazyCounter, 3619 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5030 SdHoareTripleChecker+Valid, 3961 SdHoareTripleChecker+Invalid, 3821 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 3619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-12-14 03:15:51,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5030 Valid, 3961 Invalid, 3821 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 3619 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-12-14 03:15:51,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2129 states. [2022-12-14 03:15:51,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2129 to 850. [2022-12-14 03:15:51,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 850 states, 828 states have (on average 1.3635265700483092) internal successors, (1129), 849 states have internal predecessors, (1129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:51,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 850 states to 850 states and 1129 transitions. [2022-12-14 03:15:51,468 INFO L78 Accepts]: Start accepts. Automaton has 850 states and 1129 transitions. Word has length 93 [2022-12-14 03:15:51,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:15:51,469 INFO L495 AbstractCegarLoop]: Abstraction has 850 states and 1129 transitions. [2022-12-14 03:15:51,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.454545454545455) internal successors, (93), 10 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:51,469 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states and 1129 transitions. [2022-12-14 03:15:51,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-12-14 03:15:51,469 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:15:51,470 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:15:51,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-12-14 03:15:51,470 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:15:51,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:15:51,470 INFO L85 PathProgramCache]: Analyzing trace with hash -603748374, now seen corresponding path program 1 times [2022-12-14 03:15:51,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:15:51,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030524006] [2022-12-14 03:15:51,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:15:51,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:15:51,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:15:51,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:15:51,598 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:15:51,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030524006] [2022-12-14 03:15:51,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030524006] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:15:51,598 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:15:51,598 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 03:15:51,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139601957] [2022-12-14 03:15:51,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:15:51,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 03:15:51,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:15:51,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 03:15:51,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 03:15:51,600 INFO L87 Difference]: Start difference. First operand 850 states and 1129 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:52,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:15:52,975 INFO L93 Difference]: Finished difference Result 1475 states and 1943 transitions. [2022-12-14 03:15:52,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 03:15:52,975 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2022-12-14 03:15:52,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:15:52,976 INFO L225 Difference]: With dead ends: 1475 [2022-12-14 03:15:52,977 INFO L226 Difference]: Without dead ends: 1458 [2022-12-14 03:15:52,977 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-12-14 03:15:52,977 INFO L413 NwaCegarLoop]: 493 mSDtfsCounter, 3204 mSDsluCounter, 1559 mSDsCounter, 0 mSdLazyCounter, 1776 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3204 SdHoareTripleChecker+Valid, 2052 SdHoareTripleChecker+Invalid, 1780 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-14 03:15:52,977 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3204 Valid, 2052 Invalid, 1780 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1776 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-14 03:15:52,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1458 states. [2022-12-14 03:15:53,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1458 to 850. [2022-12-14 03:15:53,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 850 states, 828 states have (on average 1.3611111111111112) internal successors, (1127), 849 states have internal predecessors, (1127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:53,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 850 states to 850 states and 1127 transitions. [2022-12-14 03:15:53,155 INFO L78 Accepts]: Start accepts. Automaton has 850 states and 1127 transitions. Word has length 93 [2022-12-14 03:15:53,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:15:53,156 INFO L495 AbstractCegarLoop]: Abstraction has 850 states and 1127 transitions. [2022-12-14 03:15:53,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:53,156 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states and 1127 transitions. [2022-12-14 03:15:53,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-12-14 03:15:53,156 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:15:53,157 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:15:53,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-12-14 03:15:53,157 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:15:53,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:15:53,157 INFO L85 PathProgramCache]: Analyzing trace with hash 2059464145, now seen corresponding path program 1 times [2022-12-14 03:15:53,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:15:53,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129471175] [2022-12-14 03:15:53,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:15:53,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:15:53,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:15:53,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:15:53,300 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:15:53,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129471175] [2022-12-14 03:15:53,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129471175] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:15:53,300 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:15:53,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 03:15:53,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949417898] [2022-12-14 03:15:53,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:15:53,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 03:15:53,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:15:53,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 03:15:53,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-12-14 03:15:53,302 INFO L87 Difference]: Start difference. First operand 850 states and 1127 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:54,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:15:54,826 INFO L93 Difference]: Finished difference Result 1618 states and 2145 transitions. [2022-12-14 03:15:54,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 03:15:54,827 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2022-12-14 03:15:54,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:15:54,828 INFO L225 Difference]: With dead ends: 1618 [2022-12-14 03:15:54,828 INFO L226 Difference]: Without dead ends: 1482 [2022-12-14 03:15:54,829 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2022-12-14 03:15:54,829 INFO L413 NwaCegarLoop]: 698 mSDtfsCounter, 1741 mSDsluCounter, 2390 mSDsCounter, 0 mSdLazyCounter, 2527 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1741 SdHoareTripleChecker+Valid, 3088 SdHoareTripleChecker+Invalid, 2531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-14 03:15:54,829 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1741 Valid, 3088 Invalid, 2531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2527 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-14 03:15:54,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1482 states. [2022-12-14 03:15:55,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1482 to 850. [2022-12-14 03:15:55,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 850 states, 828 states have (on average 1.358695652173913) internal successors, (1125), 849 states have internal predecessors, (1125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:55,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 850 states to 850 states and 1125 transitions. [2022-12-14 03:15:55,013 INFO L78 Accepts]: Start accepts. Automaton has 850 states and 1125 transitions. Word has length 93 [2022-12-14 03:15:55,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:15:55,013 INFO L495 AbstractCegarLoop]: Abstraction has 850 states and 1125 transitions. [2022-12-14 03:15:55,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:55,014 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states and 1125 transitions. [2022-12-14 03:15:55,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-12-14 03:15:55,014 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:15:55,014 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:15:55,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-12-14 03:15:55,014 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:15:55,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:15:55,015 INFO L85 PathProgramCache]: Analyzing trace with hash 413378925, now seen corresponding path program 1 times [2022-12-14 03:15:55,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:15:55,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915400159] [2022-12-14 03:15:55,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:15:55,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:15:55,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:15:55,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:15:55,161 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:15:55,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915400159] [2022-12-14 03:15:55,162 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915400159] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:15:55,162 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:15:55,162 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 03:15:55,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588017273] [2022-12-14 03:15:55,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:15:55,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 03:15:55,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:15:55,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 03:15:55,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-12-14 03:15:55,163 INFO L87 Difference]: Start difference. First operand 850 states and 1125 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:56,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:15:56,557 INFO L93 Difference]: Finished difference Result 1618 states and 2146 transitions. [2022-12-14 03:15:56,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 03:15:56,558 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2022-12-14 03:15:56,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:15:56,560 INFO L225 Difference]: With dead ends: 1618 [2022-12-14 03:15:56,560 INFO L226 Difference]: Without dead ends: 1482 [2022-12-14 03:15:56,560 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 [2022-12-14 03:15:56,561 INFO L413 NwaCegarLoop]: 668 mSDtfsCounter, 1873 mSDsluCounter, 2346 mSDsCounter, 0 mSdLazyCounter, 2285 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1873 SdHoareTripleChecker+Valid, 3014 SdHoareTripleChecker+Invalid, 2289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-14 03:15:56,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1873 Valid, 3014 Invalid, 2289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2285 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-14 03:15:56,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1482 states. [2022-12-14 03:15:56,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1482 to 850. [2022-12-14 03:15:56,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 850 states, 828 states have (on average 1.356280193236715) internal successors, (1123), 849 states have internal predecessors, (1123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:56,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 850 states to 850 states and 1123 transitions. [2022-12-14 03:15:56,838 INFO L78 Accepts]: Start accepts. Automaton has 850 states and 1123 transitions. Word has length 93 [2022-12-14 03:15:56,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:15:56,839 INFO L495 AbstractCegarLoop]: Abstraction has 850 states and 1123 transitions. [2022-12-14 03:15:56,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:56,839 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states and 1123 transitions. [2022-12-14 03:15:56,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-12-14 03:15:56,840 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:15:56,841 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:15:56,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-12-14 03:15:56,841 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:15:56,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:15:56,841 INFO L85 PathProgramCache]: Analyzing trace with hash 690949312, now seen corresponding path program 1 times [2022-12-14 03:15:56,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:15:56,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875528049] [2022-12-14 03:15:56,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:15:56,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:15:56,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:15:56,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:15:56,992 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:15:56,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875528049] [2022-12-14 03:15:56,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875528049] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:15:56,992 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:15:56,992 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 03:15:56,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052777864] [2022-12-14 03:15:56,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:15:56,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 03:15:56,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:15:56,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 03:15:56,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 03:15:56,993 INFO L87 Difference]: Start difference. First operand 850 states and 1123 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:58,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:15:58,432 INFO L93 Difference]: Finished difference Result 1506 states and 1966 transitions. [2022-12-14 03:15:58,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 03:15:58,432 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2022-12-14 03:15:58,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:15:58,434 INFO L225 Difference]: With dead ends: 1506 [2022-12-14 03:15:58,434 INFO L226 Difference]: Without dead ends: 1410 [2022-12-14 03:15:58,434 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-12-14 03:15:58,435 INFO L413 NwaCegarLoop]: 492 mSDtfsCounter, 3065 mSDsluCounter, 1523 mSDsCounter, 0 mSdLazyCounter, 1796 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3065 SdHoareTripleChecker+Valid, 2015 SdHoareTripleChecker+Invalid, 1800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-14 03:15:58,435 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3065 Valid, 2015 Invalid, 1800 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1796 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-14 03:15:58,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1410 states. [2022-12-14 03:15:58,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1410 to 850. [2022-12-14 03:15:58,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 850 states, 828 states have (on average 1.353864734299517) internal successors, (1121), 849 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:58,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 850 states to 850 states and 1121 transitions. [2022-12-14 03:15:58,643 INFO L78 Accepts]: Start accepts. Automaton has 850 states and 1121 transitions. Word has length 93 [2022-12-14 03:15:58,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:15:58,643 INFO L495 AbstractCegarLoop]: Abstraction has 850 states and 1121 transitions. [2022-12-14 03:15:58,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:15:58,643 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states and 1121 transitions. [2022-12-14 03:15:58,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-12-14 03:15:58,645 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:15:58,645 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:15:58,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-12-14 03:15:58,645 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:15:58,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:15:58,646 INFO L85 PathProgramCache]: Analyzing trace with hash -839930569, now seen corresponding path program 1 times [2022-12-14 03:15:58,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:15:58,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149427142] [2022-12-14 03:15:58,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:15:58,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:15:58,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:15:58,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:15:58,811 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:15:58,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149427142] [2022-12-14 03:15:58,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149427142] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:15:58,812 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:15:58,812 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 03:15:58,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443506795] [2022-12-14 03:15:58,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:15:58,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 03:15:58,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:15:58,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 03:15:58,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-12-14 03:15:58,813 INFO L87 Difference]: Start difference. First operand 850 states and 1121 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:00,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:16:00,644 INFO L93 Difference]: Finished difference Result 1599 states and 2115 transitions. [2022-12-14 03:16:00,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 03:16:00,644 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2022-12-14 03:16:00,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:16:00,646 INFO L225 Difference]: With dead ends: 1599 [2022-12-14 03:16:00,646 INFO L226 Difference]: Without dead ends: 1482 [2022-12-14 03:16:00,646 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2022-12-14 03:16:00,646 INFO L413 NwaCegarLoop]: 676 mSDtfsCounter, 2443 mSDsluCounter, 1860 mSDsCounter, 0 mSdLazyCounter, 2018 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2443 SdHoareTripleChecker+Valid, 2536 SdHoareTripleChecker+Invalid, 2023 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 2018 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-14 03:16:00,647 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2443 Valid, 2536 Invalid, 2023 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 2018 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-14 03:16:00,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1482 states. [2022-12-14 03:16:00,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1482 to 850. [2022-12-14 03:16:00,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 850 states, 828 states have (on average 1.3526570048309179) internal successors, (1120), 849 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:00,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 850 states to 850 states and 1120 transitions. [2022-12-14 03:16:00,847 INFO L78 Accepts]: Start accepts. Automaton has 850 states and 1120 transitions. Word has length 93 [2022-12-14 03:16:00,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:16:00,848 INFO L495 AbstractCegarLoop]: Abstraction has 850 states and 1120 transitions. [2022-12-14 03:16:00,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:00,848 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states and 1120 transitions. [2022-12-14 03:16:00,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-12-14 03:16:00,849 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:16:00,849 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:16:00,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-12-14 03:16:00,850 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:16:00,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:16:00,850 INFO L85 PathProgramCache]: Analyzing trace with hash 1312261900, now seen corresponding path program 1 times [2022-12-14 03:16:00,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:16:00,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241006830] [2022-12-14 03:16:00,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:16:00,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:16:00,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:16:01,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:16:01,008 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:16:01,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241006830] [2022-12-14 03:16:01,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241006830] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:16:01,009 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:16:01,009 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 03:16:01,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681314325] [2022-12-14 03:16:01,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:16:01,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 03:16:01,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:16:01,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 03:16:01,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 03:16:01,010 INFO L87 Difference]: Start difference. First operand 850 states and 1120 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:02,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:16:02,558 INFO L93 Difference]: Finished difference Result 1504 states and 1959 transitions. [2022-12-14 03:16:02,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 03:16:02,559 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2022-12-14 03:16:02,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:16:02,560 INFO L225 Difference]: With dead ends: 1504 [2022-12-14 03:16:02,560 INFO L226 Difference]: Without dead ends: 1410 [2022-12-14 03:16:02,561 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-12-14 03:16:02,561 INFO L413 NwaCegarLoop]: 511 mSDtfsCounter, 2966 mSDsluCounter, 1578 mSDsCounter, 0 mSdLazyCounter, 1896 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2966 SdHoareTripleChecker+Valid, 2089 SdHoareTripleChecker+Invalid, 1899 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1896 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-14 03:16:02,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2966 Valid, 2089 Invalid, 1899 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1896 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-14 03:16:02,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1410 states. [2022-12-14 03:16:02,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1410 to 850. [2022-12-14 03:16:02,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 850 states, 828 states have (on average 1.3514492753623188) internal successors, (1119), 849 states have internal predecessors, (1119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:02,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 850 states to 850 states and 1119 transitions. [2022-12-14 03:16:02,765 INFO L78 Accepts]: Start accepts. Automaton has 850 states and 1119 transitions. Word has length 93 [2022-12-14 03:16:02,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:16:02,765 INFO L495 AbstractCegarLoop]: Abstraction has 850 states and 1119 transitions. [2022-12-14 03:16:02,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:02,766 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states and 1119 transitions. [2022-12-14 03:16:02,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-12-14 03:16:02,766 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:16:02,766 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:16:02,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-12-14 03:16:02,766 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:16:02,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:16:02,767 INFO L85 PathProgramCache]: Analyzing trace with hash -26562757, now seen corresponding path program 1 times [2022-12-14 03:16:02,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:16:02,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398196028] [2022-12-14 03:16:02,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:16:02,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:16:02,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:16:02,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:16:02,924 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:16:02,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398196028] [2022-12-14 03:16:02,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398196028] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:16:02,924 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:16:02,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 03:16:02,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108410983] [2022-12-14 03:16:02,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:16:02,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 03:16:02,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:16:02,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 03:16:02,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-12-14 03:16:02,925 INFO L87 Difference]: Start difference. First operand 850 states and 1119 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:04,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:16:04,495 INFO L93 Difference]: Finished difference Result 1594 states and 2107 transitions. [2022-12-14 03:16:04,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 03:16:04,496 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2022-12-14 03:16:04,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:16:04,497 INFO L225 Difference]: With dead ends: 1594 [2022-12-14 03:16:04,497 INFO L226 Difference]: Without dead ends: 1482 [2022-12-14 03:16:04,497 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 [2022-12-14 03:16:04,498 INFO L413 NwaCegarLoop]: 701 mSDtfsCounter, 1768 mSDsluCounter, 2158 mSDsCounter, 0 mSdLazyCounter, 2212 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1768 SdHoareTripleChecker+Valid, 2859 SdHoareTripleChecker+Invalid, 2216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-14 03:16:04,498 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1768 Valid, 2859 Invalid, 2216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2212 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-14 03:16:04,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1482 states. [2022-12-14 03:16:04,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1482 to 850. [2022-12-14 03:16:04,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 850 states, 828 states have (on average 1.3502415458937198) internal successors, (1118), 849 states have internal predecessors, (1118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:04,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 850 states to 850 states and 1118 transitions. [2022-12-14 03:16:04,711 INFO L78 Accepts]: Start accepts. Automaton has 850 states and 1118 transitions. Word has length 93 [2022-12-14 03:16:04,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:16:04,711 INFO L495 AbstractCegarLoop]: Abstraction has 850 states and 1118 transitions. [2022-12-14 03:16:04,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:04,711 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states and 1118 transitions. [2022-12-14 03:16:04,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-12-14 03:16:04,712 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:16:04,712 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:16:04,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-12-14 03:16:04,712 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:16:04,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:16:04,713 INFO L85 PathProgramCache]: Analyzing trace with hash -941703311, now seen corresponding path program 1 times [2022-12-14 03:16:04,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:16:04,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334302483] [2022-12-14 03:16:04,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:16:04,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:16:04,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:16:04,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:16:04,848 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:16:04,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334302483] [2022-12-14 03:16:04,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334302483] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:16:04,848 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:16:04,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 03:16:04,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733520853] [2022-12-14 03:16:04,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:16:04,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 03:16:04,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:16:04,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 03:16:04,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-12-14 03:16:04,849 INFO L87 Difference]: Start difference. First operand 850 states and 1118 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:06,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:16:06,342 INFO L93 Difference]: Finished difference Result 1599 states and 2111 transitions. [2022-12-14 03:16:06,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 03:16:06,343 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2022-12-14 03:16:06,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:16:06,344 INFO L225 Difference]: With dead ends: 1599 [2022-12-14 03:16:06,345 INFO L226 Difference]: Without dead ends: 1482 [2022-12-14 03:16:06,345 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 [2022-12-14 03:16:06,345 INFO L413 NwaCegarLoop]: 666 mSDtfsCounter, 1853 mSDsluCounter, 2344 mSDsCounter, 0 mSdLazyCounter, 2264 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1853 SdHoareTripleChecker+Valid, 3010 SdHoareTripleChecker+Invalid, 2268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-14 03:16:06,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1853 Valid, 3010 Invalid, 2268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2264 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-14 03:16:06,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1482 states. [2022-12-14 03:16:06,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1482 to 850. [2022-12-14 03:16:06,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 850 states, 828 states have (on average 1.3490338164251208) internal successors, (1117), 849 states have internal predecessors, (1117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:06,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 850 states to 850 states and 1117 transitions. [2022-12-14 03:16:06,562 INFO L78 Accepts]: Start accepts. Automaton has 850 states and 1117 transitions. Word has length 93 [2022-12-14 03:16:06,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:16:06,562 INFO L495 AbstractCegarLoop]: Abstraction has 850 states and 1117 transitions. [2022-12-14 03:16:06,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:06,563 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states and 1117 transitions. [2022-12-14 03:16:06,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-12-14 03:16:06,563 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:16:06,563 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:16:06,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-12-14 03:16:06,563 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:16:06,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:16:06,564 INFO L85 PathProgramCache]: Analyzing trace with hash -170860907, now seen corresponding path program 1 times [2022-12-14 03:16:06,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:16:06,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493258742] [2022-12-14 03:16:06,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:16:06,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:16:06,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:16:06,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:16:06,698 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:16:06,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493258742] [2022-12-14 03:16:06,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493258742] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:16:06,698 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:16:06,698 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 03:16:06,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120647560] [2022-12-14 03:16:06,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:16:06,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 03:16:06,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:16:06,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 03:16:06,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 03:16:06,699 INFO L87 Difference]: Start difference. First operand 850 states and 1117 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:08,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:16:08,171 INFO L93 Difference]: Finished difference Result 1504 states and 1955 transitions. [2022-12-14 03:16:08,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 03:16:08,172 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2022-12-14 03:16:08,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:16:08,174 INFO L225 Difference]: With dead ends: 1504 [2022-12-14 03:16:08,174 INFO L226 Difference]: Without dead ends: 1410 [2022-12-14 03:16:08,175 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-12-14 03:16:08,175 INFO L413 NwaCegarLoop]: 491 mSDtfsCounter, 3043 mSDsluCounter, 1519 mSDsCounter, 0 mSdLazyCounter, 1782 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3043 SdHoareTripleChecker+Valid, 2010 SdHoareTripleChecker+Invalid, 1786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-14 03:16:08,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3043 Valid, 2010 Invalid, 1786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1782 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-14 03:16:08,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1410 states. [2022-12-14 03:16:08,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1410 to 850. [2022-12-14 03:16:08,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 850 states, 828 states have (on average 1.3478260869565217) internal successors, (1116), 849 states have internal predecessors, (1116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:08,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 850 states to 850 states and 1116 transitions. [2022-12-14 03:16:08,409 INFO L78 Accepts]: Start accepts. Automaton has 850 states and 1116 transitions. Word has length 93 [2022-12-14 03:16:08,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:16:08,410 INFO L495 AbstractCegarLoop]: Abstraction has 850 states and 1116 transitions. [2022-12-14 03:16:08,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:08,410 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states and 1116 transitions. [2022-12-14 03:16:08,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-12-14 03:16:08,410 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:16:08,411 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:16:08,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-12-14 03:16:08,411 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:16:08,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:16:08,411 INFO L85 PathProgramCache]: Analyzing trace with hash -1086119729, now seen corresponding path program 1 times [2022-12-14 03:16:08,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:16:08,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778517801] [2022-12-14 03:16:08,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:16:08,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:16:08,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:16:08,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:16:08,605 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:16:08,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778517801] [2022-12-14 03:16:08,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778517801] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:16:08,605 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:16:08,606 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 03:16:08,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83688619] [2022-12-14 03:16:08,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:16:08,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 03:16:08,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:16:08,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 03:16:08,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-12-14 03:16:08,607 INFO L87 Difference]: Start difference. First operand 850 states and 1116 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:10,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:16:10,233 INFO L93 Difference]: Finished difference Result 1608 states and 2118 transitions. [2022-12-14 03:16:10,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 03:16:10,234 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2022-12-14 03:16:10,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:16:10,235 INFO L225 Difference]: With dead ends: 1608 [2022-12-14 03:16:10,235 INFO L226 Difference]: Without dead ends: 1482 [2022-12-14 03:16:10,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2022-12-14 03:16:10,236 INFO L413 NwaCegarLoop]: 673 mSDtfsCounter, 2442 mSDsluCounter, 1844 mSDsCounter, 0 mSdLazyCounter, 1991 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2442 SdHoareTripleChecker+Valid, 2517 SdHoareTripleChecker+Invalid, 1996 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1991 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-14 03:16:10,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2442 Valid, 2517 Invalid, 1996 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1991 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-14 03:16:10,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1482 states. [2022-12-14 03:16:10,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1482 to 850. [2022-12-14 03:16:10,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 850 states, 828 states have (on average 1.3466183574879227) internal successors, (1115), 849 states have internal predecessors, (1115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:10,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 850 states to 850 states and 1115 transitions. [2022-12-14 03:16:10,529 INFO L78 Accepts]: Start accepts. Automaton has 850 states and 1115 transitions. Word has length 93 [2022-12-14 03:16:10,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:16:10,529 INFO L495 AbstractCegarLoop]: Abstraction has 850 states and 1115 transitions. [2022-12-14 03:16:10,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:10,529 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states and 1115 transitions. [2022-12-14 03:16:10,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-12-14 03:16:10,530 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:16:10,530 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:16:10,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-12-14 03:16:10,530 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:16:10,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:16:10,530 INFO L85 PathProgramCache]: Analyzing trace with hash -960925632, now seen corresponding path program 1 times [2022-12-14 03:16:10,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:16:10,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079123304] [2022-12-14 03:16:10,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:16:10,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:16:10,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:16:10,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:16:10,728 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:16:10,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079123304] [2022-12-14 03:16:10,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079123304] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:16:10,729 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:16:10,729 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 03:16:10,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884001692] [2022-12-14 03:16:10,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:16:10,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 03:16:10,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:16:10,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 03:16:10,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 03:16:10,730 INFO L87 Difference]: Start difference. First operand 850 states and 1115 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:12,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:16:12,169 INFO L93 Difference]: Finished difference Result 1507 states and 1955 transitions. [2022-12-14 03:16:12,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 03:16:12,169 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2022-12-14 03:16:12,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:16:12,171 INFO L225 Difference]: With dead ends: 1507 [2022-12-14 03:16:12,171 INFO L226 Difference]: Without dead ends: 1410 [2022-12-14 03:16:12,171 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-12-14 03:16:12,171 INFO L413 NwaCegarLoop]: 500 mSDtfsCounter, 3031 mSDsluCounter, 1535 mSDsCounter, 0 mSdLazyCounter, 1775 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3031 SdHoareTripleChecker+Valid, 2035 SdHoareTripleChecker+Invalid, 1779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-14 03:16:12,171 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3031 Valid, 2035 Invalid, 1779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1775 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-14 03:16:12,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1410 states. [2022-12-14 03:16:12,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1410 to 850. [2022-12-14 03:16:12,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 850 states, 828 states have (on average 1.3454106280193237) internal successors, (1114), 849 states have internal predecessors, (1114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:12,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 850 states to 850 states and 1114 transitions. [2022-12-14 03:16:12,394 INFO L78 Accepts]: Start accepts. Automaton has 850 states and 1114 transitions. Word has length 93 [2022-12-14 03:16:12,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:16:12,394 INFO L495 AbstractCegarLoop]: Abstraction has 850 states and 1114 transitions. [2022-12-14 03:16:12,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:12,394 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states and 1114 transitions. [2022-12-14 03:16:12,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-12-14 03:16:12,395 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:16:12,395 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:16:12,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-12-14 03:16:12,395 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:16:12,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:16:12,396 INFO L85 PathProgramCache]: Analyzing trace with hash 15926189, now seen corresponding path program 1 times [2022-12-14 03:16:12,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:16:12,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324048335] [2022-12-14 03:16:12,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:16:12,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:16:12,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:16:12,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:16:12,572 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:16:12,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324048335] [2022-12-14 03:16:12,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324048335] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:16:12,572 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:16:12,572 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 03:16:12,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752550220] [2022-12-14 03:16:12,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:16:12,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 03:16:12,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:16:12,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 03:16:12,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 03:16:12,574 INFO L87 Difference]: Start difference. First operand 850 states and 1114 transitions. Second operand has 8 states, 8 states have (on average 11.75) internal successors, (94), 7 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:14,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:16:14,286 INFO L93 Difference]: Finished difference Result 1719 states and 2272 transitions. [2022-12-14 03:16:14,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 03:16:14,287 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.75) internal successors, (94), 7 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2022-12-14 03:16:14,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:16:14,288 INFO L225 Difference]: With dead ends: 1719 [2022-12-14 03:16:14,288 INFO L226 Difference]: Without dead ends: 1497 [2022-12-14 03:16:14,288 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-12-14 03:16:14,289 INFO L413 NwaCegarLoop]: 698 mSDtfsCounter, 2672 mSDsluCounter, 1983 mSDsCounter, 0 mSdLazyCounter, 2192 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2672 SdHoareTripleChecker+Valid, 2681 SdHoareTripleChecker+Invalid, 2197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 2192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-14 03:16:14,289 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2672 Valid, 2681 Invalid, 2197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 2192 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-14 03:16:14,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1497 states. [2022-12-14 03:16:14,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1497 to 842. [2022-12-14 03:16:14,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 842 states, 820 states have (on average 1.3463414634146342) internal successors, (1104), 841 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:14,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1104 transitions. [2022-12-14 03:16:14,579 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1104 transitions. Word has length 94 [2022-12-14 03:16:14,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:16:14,579 INFO L495 AbstractCegarLoop]: Abstraction has 842 states and 1104 transitions. [2022-12-14 03:16:14,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.75) internal successors, (94), 7 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:14,580 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1104 transitions. [2022-12-14 03:16:14,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-12-14 03:16:14,581 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:16:14,581 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:16:14,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-12-14 03:16:14,581 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:16:14,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:16:14,582 INFO L85 PathProgramCache]: Analyzing trace with hash 998669502, now seen corresponding path program 1 times [2022-12-14 03:16:14,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:16:14,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55766925] [2022-12-14 03:16:14,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:16:14,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:16:14,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:16:14,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:16:14,976 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:16:14,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55766925] [2022-12-14 03:16:14,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55766925] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:16:14,976 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:16:14,976 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-14 03:16:14,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386866849] [2022-12-14 03:16:14,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:16:14,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-14 03:16:14,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:16:14,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-14 03:16:14,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-12-14 03:16:14,978 INFO L87 Difference]: Start difference. First operand 842 states and 1104 transitions. Second operand has 10 states, 10 states have (on average 9.4) internal successors, (94), 9 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:16,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:16:16,835 INFO L93 Difference]: Finished difference Result 1763 states and 2331 transitions. [2022-12-14 03:16:16,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-14 03:16:16,836 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.4) internal successors, (94), 9 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2022-12-14 03:16:16,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:16:16,837 INFO L225 Difference]: With dead ends: 1763 [2022-12-14 03:16:16,837 INFO L226 Difference]: Without dead ends: 1658 [2022-12-14 03:16:16,837 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2022-12-14 03:16:16,837 INFO L413 NwaCegarLoop]: 1210 mSDtfsCounter, 2410 mSDsluCounter, 4672 mSDsCounter, 0 mSdLazyCounter, 836 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2410 SdHoareTripleChecker+Valid, 5882 SdHoareTripleChecker+Invalid, 836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 836 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-14 03:16:16,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2410 Valid, 5882 Invalid, 836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 836 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-14 03:16:16,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1658 states. [2022-12-14 03:16:17,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1658 to 829. [2022-12-14 03:16:17,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 829 states, 807 states have (on average 1.3432465923172243) internal successors, (1084), 828 states have internal predecessors, (1084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:17,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 829 states and 1084 transitions. [2022-12-14 03:16:17,100 INFO L78 Accepts]: Start accepts. Automaton has 829 states and 1084 transitions. Word has length 94 [2022-12-14 03:16:17,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:16:17,100 INFO L495 AbstractCegarLoop]: Abstraction has 829 states and 1084 transitions. [2022-12-14 03:16:17,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.4) internal successors, (94), 9 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:17,101 INFO L276 IsEmpty]: Start isEmpty. Operand 829 states and 1084 transitions. [2022-12-14 03:16:17,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-12-14 03:16:17,101 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:16:17,101 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:16:17,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-12-14 03:16:17,102 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:16:17,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:16:17,102 INFO L85 PathProgramCache]: Analyzing trace with hash 296209564, now seen corresponding path program 1 times [2022-12-14 03:16:17,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:16:17,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629416611] [2022-12-14 03:16:17,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:16:17,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:16:17,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:16:17,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:16:17,260 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:16:17,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629416611] [2022-12-14 03:16:17,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629416611] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:16:17,260 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:16:17,260 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 03:16:17,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141619052] [2022-12-14 03:16:17,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:16:17,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 03:16:17,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:16:17,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 03:16:17,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-14 03:16:17,261 INFO L87 Difference]: Start difference. First operand 829 states and 1084 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:19,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:16:19,312 INFO L93 Difference]: Finished difference Result 1553 states and 2032 transitions. [2022-12-14 03:16:19,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 03:16:19,312 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2022-12-14 03:16:19,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:16:19,313 INFO L225 Difference]: With dead ends: 1553 [2022-12-14 03:16:19,313 INFO L226 Difference]: Without dead ends: 1437 [2022-12-14 03:16:19,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2022-12-14 03:16:19,314 INFO L413 NwaCegarLoop]: 577 mSDtfsCounter, 2795 mSDsluCounter, 1832 mSDsCounter, 0 mSdLazyCounter, 1902 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2795 SdHoareTripleChecker+Valid, 2409 SdHoareTripleChecker+Invalid, 1907 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1902 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-14 03:16:19,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2795 Valid, 2409 Invalid, 1907 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1902 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-14 03:16:19,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1437 states. [2022-12-14 03:16:19,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1437 to 829. [2022-12-14 03:16:19,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 829 states, 807 states have (on average 1.3407682775712515) internal successors, (1082), 828 states have internal predecessors, (1082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:19,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 829 states and 1082 transitions. [2022-12-14 03:16:19,561 INFO L78 Accepts]: Start accepts. Automaton has 829 states and 1082 transitions. Word has length 95 [2022-12-14 03:16:19,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:16:19,561 INFO L495 AbstractCegarLoop]: Abstraction has 829 states and 1082 transitions. [2022-12-14 03:16:19,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:19,562 INFO L276 IsEmpty]: Start isEmpty. Operand 829 states and 1082 transitions. [2022-12-14 03:16:19,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-12-14 03:16:19,562 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:16:19,562 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:16:19,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-12-14 03:16:19,562 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:16:19,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:16:19,563 INFO L85 PathProgramCache]: Analyzing trace with hash -1335545213, now seen corresponding path program 1 times [2022-12-14 03:16:19,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:16:19,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869289047] [2022-12-14 03:16:19,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:16:19,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:16:19,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:16:19,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:16:19,713 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:16:19,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869289047] [2022-12-14 03:16:19,713 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869289047] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:16:19,713 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:16:19,713 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 03:16:19,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694942975] [2022-12-14 03:16:19,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:16:19,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 03:16:19,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:16:19,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 03:16:19,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 03:16:19,714 INFO L87 Difference]: Start difference. First operand 829 states and 1082 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:21,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:16:21,777 INFO L93 Difference]: Finished difference Result 1481 states and 1914 transitions. [2022-12-14 03:16:21,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 03:16:21,778 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2022-12-14 03:16:21,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:16:21,779 INFO L225 Difference]: With dead ends: 1481 [2022-12-14 03:16:21,779 INFO L226 Difference]: Without dead ends: 1381 [2022-12-14 03:16:21,780 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-12-14 03:16:21,780 INFO L413 NwaCegarLoop]: 506 mSDtfsCounter, 1992 mSDsluCounter, 1552 mSDsCounter, 0 mSdLazyCounter, 1729 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1992 SdHoareTripleChecker+Valid, 2058 SdHoareTripleChecker+Invalid, 1733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1729 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-14 03:16:21,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1992 Valid, 2058 Invalid, 1733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1729 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-14 03:16:21,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1381 states. [2022-12-14 03:16:22,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1381 to 829. [2022-12-14 03:16:22,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 829 states, 807 states have (on average 1.338289962825279) internal successors, (1080), 828 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:22,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 829 states and 1080 transitions. [2022-12-14 03:16:22,032 INFO L78 Accepts]: Start accepts. Automaton has 829 states and 1080 transitions. Word has length 95 [2022-12-14 03:16:22,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:16:22,032 INFO L495 AbstractCegarLoop]: Abstraction has 829 states and 1080 transitions. [2022-12-14 03:16:22,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:22,032 INFO L276 IsEmpty]: Start isEmpty. Operand 829 states and 1080 transitions. [2022-12-14 03:16:22,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-12-14 03:16:22,033 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:16:22,033 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:16:22,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-12-14 03:16:22,033 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:16:22,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:16:22,033 INFO L85 PathProgramCache]: Analyzing trace with hash -186851275, now seen corresponding path program 1 times [2022-12-14 03:16:22,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:16:22,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115718764] [2022-12-14 03:16:22,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:16:22,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:16:22,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:16:22,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:16:22,190 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:16:22,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115718764] [2022-12-14 03:16:22,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115718764] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:16:22,190 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:16:22,190 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 03:16:22,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621456649] [2022-12-14 03:16:22,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:16:22,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 03:16:22,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:16:22,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 03:16:22,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-12-14 03:16:22,191 INFO L87 Difference]: Start difference. First operand 829 states and 1080 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:24,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:16:24,048 INFO L93 Difference]: Finished difference Result 1617 states and 2115 transitions. [2022-12-14 03:16:24,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 03:16:24,049 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2022-12-14 03:16:24,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:16:24,050 INFO L225 Difference]: With dead ends: 1617 [2022-12-14 03:16:24,050 INFO L226 Difference]: Without dead ends: 1461 [2022-12-14 03:16:24,050 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2022-12-14 03:16:24,051 INFO L413 NwaCegarLoop]: 777 mSDtfsCounter, 2374 mSDsluCounter, 2012 mSDsCounter, 0 mSdLazyCounter, 2085 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2374 SdHoareTripleChecker+Valid, 2789 SdHoareTripleChecker+Invalid, 2089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2085 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-14 03:16:24,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2374 Valid, 2789 Invalid, 2089 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2085 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-14 03:16:24,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1461 states. [2022-12-14 03:16:24,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1461 to 829. [2022-12-14 03:16:24,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 829 states, 807 states have (on average 1.335811648079306) internal successors, (1078), 828 states have internal predecessors, (1078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:24,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 829 states and 1078 transitions. [2022-12-14 03:16:24,308 INFO L78 Accepts]: Start accepts. Automaton has 829 states and 1078 transitions. Word has length 95 [2022-12-14 03:16:24,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:16:24,308 INFO L495 AbstractCegarLoop]: Abstraction has 829 states and 1078 transitions. [2022-12-14 03:16:24,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:24,308 INFO L276 IsEmpty]: Start isEmpty. Operand 829 states and 1078 transitions. [2022-12-14 03:16:24,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-12-14 03:16:24,309 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:16:24,309 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:16:24,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-12-14 03:16:24,309 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:16:24,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:16:24,309 INFO L85 PathProgramCache]: Analyzing trace with hash -605094739, now seen corresponding path program 1 times [2022-12-14 03:16:24,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:16:24,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458446567] [2022-12-14 03:16:24,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:16:24,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:16:24,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:16:24,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:16:24,455 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:16:24,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458446567] [2022-12-14 03:16:24,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458446567] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:16:24,456 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:16:24,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 03:16:24,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222341984] [2022-12-14 03:16:24,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:16:24,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 03:16:24,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:16:24,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 03:16:24,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 03:16:24,457 INFO L87 Difference]: Start difference. First operand 829 states and 1078 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:26,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:16:26,115 INFO L93 Difference]: Finished difference Result 1481 states and 1910 transitions. [2022-12-14 03:16:26,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 03:16:26,115 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2022-12-14 03:16:26,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:16:26,116 INFO L225 Difference]: With dead ends: 1481 [2022-12-14 03:16:26,116 INFO L226 Difference]: Without dead ends: 1381 [2022-12-14 03:16:26,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-12-14 03:16:26,117 INFO L413 NwaCegarLoop]: 506 mSDtfsCounter, 1987 mSDsluCounter, 1552 mSDsCounter, 0 mSdLazyCounter, 1722 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1987 SdHoareTripleChecker+Valid, 2058 SdHoareTripleChecker+Invalid, 1726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1722 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-14 03:16:26,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1987 Valid, 2058 Invalid, 1726 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1722 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-14 03:16:26,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1381 states. [2022-12-14 03:16:26,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1381 to 829. [2022-12-14 03:16:26,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 829 states, 807 states have (on average 1.3333333333333333) internal successors, (1076), 828 states have internal predecessors, (1076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:26,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 829 states and 1076 transitions. [2022-12-14 03:16:26,375 INFO L78 Accepts]: Start accepts. Automaton has 829 states and 1076 transitions. Word has length 95 [2022-12-14 03:16:26,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:16:26,375 INFO L495 AbstractCegarLoop]: Abstraction has 829 states and 1076 transitions. [2022-12-14 03:16:26,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:26,375 INFO L276 IsEmpty]: Start isEmpty. Operand 829 states and 1076 transitions. [2022-12-14 03:16:26,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-12-14 03:16:26,376 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:16:26,376 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:16:26,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-12-14 03:16:26,376 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:16:26,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:16:26,376 INFO L85 PathProgramCache]: Analyzing trace with hash -174985950, now seen corresponding path program 1 times [2022-12-14 03:16:26,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:16:26,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810151660] [2022-12-14 03:16:26,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:16:26,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:16:26,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:16:26,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:16:26,513 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:16:26,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810151660] [2022-12-14 03:16:26,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810151660] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:16:26,513 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:16:26,513 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 03:16:26,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393186268] [2022-12-14 03:16:26,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:16:26,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 03:16:26,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:16:26,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 03:16:26,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 03:16:26,515 INFO L87 Difference]: Start difference. First operand 829 states and 1076 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:28,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:16:28,031 INFO L93 Difference]: Finished difference Result 1477 states and 1903 transitions. [2022-12-14 03:16:28,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 03:16:28,032 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2022-12-14 03:16:28,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:16:28,033 INFO L225 Difference]: With dead ends: 1477 [2022-12-14 03:16:28,033 INFO L226 Difference]: Without dead ends: 1381 [2022-12-14 03:16:28,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-12-14 03:16:28,034 INFO L413 NwaCegarLoop]: 497 mSDtfsCounter, 1992 mSDsluCounter, 1537 mSDsCounter, 0 mSdLazyCounter, 1716 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1992 SdHoareTripleChecker+Valid, 2034 SdHoareTripleChecker+Invalid, 1720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1716 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-14 03:16:28,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1992 Valid, 2034 Invalid, 1720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1716 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-14 03:16:28,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1381 states. [2022-12-14 03:16:28,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1381 to 829. [2022-12-14 03:16:28,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 829 states, 807 states have (on average 1.3308550185873607) internal successors, (1074), 828 states have internal predecessors, (1074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:28,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 829 states and 1074 transitions. [2022-12-14 03:16:28,299 INFO L78 Accepts]: Start accepts. Automaton has 829 states and 1074 transitions. Word has length 95 [2022-12-14 03:16:28,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:16:28,299 INFO L495 AbstractCegarLoop]: Abstraction has 829 states and 1074 transitions. [2022-12-14 03:16:28,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:28,300 INFO L276 IsEmpty]: Start isEmpty. Operand 829 states and 1074 transitions. [2022-12-14 03:16:28,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-12-14 03:16:28,300 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:16:28,300 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:16:28,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-12-14 03:16:28,301 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:16:28,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:16:28,301 INFO L85 PathProgramCache]: Analyzing trace with hash -188296274, now seen corresponding path program 1 times [2022-12-14 03:16:28,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:16:28,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415002636] [2022-12-14 03:16:28,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:16:28,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:16:28,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:16:28,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:16:28,451 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:16:28,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415002636] [2022-12-14 03:16:28,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415002636] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:16:28,451 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:16:28,451 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 03:16:28,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427831781] [2022-12-14 03:16:28,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:16:28,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 03:16:28,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:16:28,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 03:16:28,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-14 03:16:28,452 INFO L87 Difference]: Start difference. First operand 829 states and 1074 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:30,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:16:30,278 INFO L93 Difference]: Finished difference Result 1551 states and 2017 transitions. [2022-12-14 03:16:30,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 03:16:30,279 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2022-12-14 03:16:30,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:16:30,280 INFO L225 Difference]: With dead ends: 1551 [2022-12-14 03:16:30,280 INFO L226 Difference]: Without dead ends: 1437 [2022-12-14 03:16:30,281 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2022-12-14 03:16:30,281 INFO L413 NwaCegarLoop]: 624 mSDtfsCounter, 2538 mSDsluCounter, 1968 mSDsCounter, 0 mSdLazyCounter, 2075 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2538 SdHoareTripleChecker+Valid, 2592 SdHoareTripleChecker+Invalid, 2079 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-14 03:16:30,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2538 Valid, 2592 Invalid, 2079 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2075 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-14 03:16:30,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1437 states. [2022-12-14 03:16:30,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1437 to 829. [2022-12-14 03:16:30,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 829 states, 807 states have (on average 1.3283767038413878) internal successors, (1072), 828 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:30,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 829 states and 1072 transitions. [2022-12-14 03:16:30,551 INFO L78 Accepts]: Start accepts. Automaton has 829 states and 1072 transitions. Word has length 95 [2022-12-14 03:16:30,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:16:30,551 INFO L495 AbstractCegarLoop]: Abstraction has 829 states and 1072 transitions. [2022-12-14 03:16:30,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:30,551 INFO L276 IsEmpty]: Start isEmpty. Operand 829 states and 1072 transitions. [2022-12-14 03:16:30,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-12-14 03:16:30,552 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:16:30,552 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:16:30,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-12-14 03:16:30,553 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:16:30,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:16:30,553 INFO L85 PathProgramCache]: Analyzing trace with hash -880482986, now seen corresponding path program 1 times [2022-12-14 03:16:30,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:16:30,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984261961] [2022-12-14 03:16:30,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:16:30,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:16:30,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:16:30,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:16:30,694 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:16:30,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984261961] [2022-12-14 03:16:30,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984261961] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:16:30,694 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:16:30,694 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 03:16:30,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705930749] [2022-12-14 03:16:30,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:16:30,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 03:16:30,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:16:30,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 03:16:30,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 03:16:30,696 INFO L87 Difference]: Start difference. First operand 829 states and 1072 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:32,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:16:32,528 INFO L93 Difference]: Finished difference Result 1386 states and 1775 transitions. [2022-12-14 03:16:32,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 03:16:32,528 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2022-12-14 03:16:32,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:16:32,529 INFO L225 Difference]: With dead ends: 1386 [2022-12-14 03:16:32,530 INFO L226 Difference]: Without dead ends: 1381 [2022-12-14 03:16:32,530 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-12-14 03:16:32,530 INFO L413 NwaCegarLoop]: 515 mSDtfsCounter, 1964 mSDsluCounter, 1580 mSDsCounter, 0 mSdLazyCounter, 1730 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1964 SdHoareTripleChecker+Valid, 2095 SdHoareTripleChecker+Invalid, 1734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1730 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-14 03:16:32,530 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1964 Valid, 2095 Invalid, 1734 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1730 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-14 03:16:32,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1381 states. [2022-12-14 03:16:32,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1381 to 829. [2022-12-14 03:16:32,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 829 states, 807 states have (on average 1.325898389095415) internal successors, (1070), 828 states have internal predecessors, (1070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:32,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 829 states and 1070 transitions. [2022-12-14 03:16:32,806 INFO L78 Accepts]: Start accepts. Automaton has 829 states and 1070 transitions. Word has length 95 [2022-12-14 03:16:32,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:16:32,806 INFO L495 AbstractCegarLoop]: Abstraction has 829 states and 1070 transitions. [2022-12-14 03:16:32,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:32,806 INFO L276 IsEmpty]: Start isEmpty. Operand 829 states and 1070 transitions. [2022-12-14 03:16:32,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-12-14 03:16:32,807 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:16:32,807 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:16:32,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-12-14 03:16:32,807 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:16:32,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:16:32,808 INFO L85 PathProgramCache]: Analyzing trace with hash 1836058637, now seen corresponding path program 1 times [2022-12-14 03:16:32,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:16:32,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739538395] [2022-12-14 03:16:32,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:16:32,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:16:32,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:16:32,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:16:32,943 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:16:32,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739538395] [2022-12-14 03:16:32,943 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739538395] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:16:32,943 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:16:32,943 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 03:16:32,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456106519] [2022-12-14 03:16:32,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:16:32,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 03:16:32,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:16:32,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 03:16:32,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 03:16:32,945 INFO L87 Difference]: Start difference. First operand 829 states and 1070 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:34,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:16:34,812 INFO L93 Difference]: Finished difference Result 1477 states and 1897 transitions. [2022-12-14 03:16:34,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 03:16:34,813 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2022-12-14 03:16:34,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:16:34,814 INFO L225 Difference]: With dead ends: 1477 [2022-12-14 03:16:34,814 INFO L226 Difference]: Without dead ends: 1381 [2022-12-14 03:16:34,814 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-12-14 03:16:34,814 INFO L413 NwaCegarLoop]: 507 mSDtfsCounter, 2836 mSDsluCounter, 1567 mSDsCounter, 0 mSdLazyCounter, 1723 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2836 SdHoareTripleChecker+Valid, 2074 SdHoareTripleChecker+Invalid, 1727 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-14 03:16:34,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2836 Valid, 2074 Invalid, 1727 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1723 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-14 03:16:34,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1381 states. [2022-12-14 03:16:35,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1381 to 829. [2022-12-14 03:16:35,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 829 states, 807 states have (on average 1.3234200743494424) internal successors, (1068), 828 states have internal predecessors, (1068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:35,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 829 states and 1068 transitions. [2022-12-14 03:16:35,102 INFO L78 Accepts]: Start accepts. Automaton has 829 states and 1068 transitions. Word has length 95 [2022-12-14 03:16:35,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:16:35,103 INFO L495 AbstractCegarLoop]: Abstraction has 829 states and 1068 transitions. [2022-12-14 03:16:35,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:35,103 INFO L276 IsEmpty]: Start isEmpty. Operand 829 states and 1068 transitions. [2022-12-14 03:16:35,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-12-14 03:16:35,103 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:16:35,104 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:16:35,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-12-14 03:16:35,104 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:16:35,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:16:35,104 INFO L85 PathProgramCache]: Analyzing trace with hash -771722089, now seen corresponding path program 1 times [2022-12-14 03:16:35,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:16:35,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748970675] [2022-12-14 03:16:35,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:16:35,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:16:35,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:16:35,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:16:35,243 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:16:35,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748970675] [2022-12-14 03:16:35,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748970675] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:16:35,244 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:16:35,244 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 03:16:35,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876202157] [2022-12-14 03:16:35,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:16:35,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 03:16:35,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:16:35,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 03:16:35,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-14 03:16:35,245 INFO L87 Difference]: Start difference. First operand 829 states and 1068 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:37,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:16:37,151 INFO L93 Difference]: Finished difference Result 1547 states and 2003 transitions. [2022-12-14 03:16:37,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 03:16:37,151 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2022-12-14 03:16:37,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:16:37,152 INFO L225 Difference]: With dead ends: 1547 [2022-12-14 03:16:37,152 INFO L226 Difference]: Without dead ends: 1437 [2022-12-14 03:16:37,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2022-12-14 03:16:37,153 INFO L413 NwaCegarLoop]: 640 mSDtfsCounter, 2452 mSDsluCounter, 2016 mSDsCounter, 0 mSdLazyCounter, 2149 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2452 SdHoareTripleChecker+Valid, 2656 SdHoareTripleChecker+Invalid, 2152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-14 03:16:37,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2452 Valid, 2656 Invalid, 2152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2149 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-14 03:16:37,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1437 states. [2022-12-14 03:16:37,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1437 to 829. [2022-12-14 03:16:37,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 829 states, 807 states have (on average 1.3209417596034696) internal successors, (1066), 828 states have internal predecessors, (1066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:37,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 829 states and 1066 transitions. [2022-12-14 03:16:37,438 INFO L78 Accepts]: Start accepts. Automaton has 829 states and 1066 transitions. Word has length 95 [2022-12-14 03:16:37,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:16:37,438 INFO L495 AbstractCegarLoop]: Abstraction has 829 states and 1066 transitions. [2022-12-14 03:16:37,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:37,438 INFO L276 IsEmpty]: Start isEmpty. Operand 829 states and 1066 transitions. [2022-12-14 03:16:37,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-12-14 03:16:37,439 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:16:37,439 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:16:37,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-12-14 03:16:37,439 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:16:37,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:16:37,439 INFO L85 PathProgramCache]: Analyzing trace with hash 851489864, now seen corresponding path program 1 times [2022-12-14 03:16:37,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:16:37,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051382466] [2022-12-14 03:16:37,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:16:37,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:16:37,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:16:37,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:16:37,569 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:16:37,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051382466] [2022-12-14 03:16:37,569 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051382466] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:16:37,569 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:16:37,570 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 03:16:37,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509893492] [2022-12-14 03:16:37,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:16:37,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 03:16:37,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:16:37,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 03:16:37,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 03:16:37,570 INFO L87 Difference]: Start difference. First operand 829 states and 1066 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:39,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:16:39,213 INFO L93 Difference]: Finished difference Result 1386 states and 1769 transitions. [2022-12-14 03:16:39,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 03:16:39,214 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2022-12-14 03:16:39,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:16:39,215 INFO L225 Difference]: With dead ends: 1386 [2022-12-14 03:16:39,215 INFO L226 Difference]: Without dead ends: 1381 [2022-12-14 03:16:39,215 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-12-14 03:16:39,215 INFO L413 NwaCegarLoop]: 539 mSDtfsCounter, 2750 mSDsluCounter, 1623 mSDsCounter, 0 mSdLazyCounter, 1823 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2750 SdHoareTripleChecker+Valid, 2162 SdHoareTripleChecker+Invalid, 1827 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1823 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-14 03:16:39,215 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2750 Valid, 2162 Invalid, 1827 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1823 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-14 03:16:39,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1381 states. [2022-12-14 03:16:39,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1381 to 829. [2022-12-14 03:16:39,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 829 states, 807 states have (on average 1.318463444857497) internal successors, (1064), 828 states have internal predecessors, (1064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:39,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 829 states and 1064 transitions. [2022-12-14 03:16:39,505 INFO L78 Accepts]: Start accepts. Automaton has 829 states and 1064 transitions. Word has length 95 [2022-12-14 03:16:39,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:16:39,505 INFO L495 AbstractCegarLoop]: Abstraction has 829 states and 1064 transitions. [2022-12-14 03:16:39,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:39,505 INFO L276 IsEmpty]: Start isEmpty. Operand 829 states and 1064 transitions. [2022-12-14 03:16:39,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-12-14 03:16:39,506 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:16:39,506 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:16:39,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-12-14 03:16:39,506 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:16:39,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:16:39,506 INFO L85 PathProgramCache]: Analyzing trace with hash 740784075, now seen corresponding path program 1 times [2022-12-14 03:16:39,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:16:39,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209211463] [2022-12-14 03:16:39,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:16:39,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:16:39,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:16:39,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:16:39,642 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:16:39,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209211463] [2022-12-14 03:16:39,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209211463] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:16:39,642 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:16:39,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 03:16:39,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396841768] [2022-12-14 03:16:39,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:16:39,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 03:16:39,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:16:39,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 03:16:39,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 03:16:39,644 INFO L87 Difference]: Start difference. First operand 829 states and 1064 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:41,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:16:41,310 INFO L93 Difference]: Finished difference Result 1477 states and 1889 transitions. [2022-12-14 03:16:41,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 03:16:41,310 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2022-12-14 03:16:41,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:16:41,311 INFO L225 Difference]: With dead ends: 1477 [2022-12-14 03:16:41,311 INFO L226 Difference]: Without dead ends: 1381 [2022-12-14 03:16:41,312 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-12-14 03:16:41,312 INFO L413 NwaCegarLoop]: 515 mSDtfsCounter, 1948 mSDsluCounter, 1591 mSDsCounter, 0 mSdLazyCounter, 1726 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1948 SdHoareTripleChecker+Valid, 2106 SdHoareTripleChecker+Invalid, 1730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1726 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-14 03:16:41,312 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1948 Valid, 2106 Invalid, 1730 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1726 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-14 03:16:41,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1381 states. [2022-12-14 03:16:41,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1381 to 829. [2022-12-14 03:16:41,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 829 states, 807 states have (on average 1.3159851301115242) internal successors, (1062), 828 states have internal predecessors, (1062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:41,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 829 states and 1062 transitions. [2022-12-14 03:16:41,610 INFO L78 Accepts]: Start accepts. Automaton has 829 states and 1062 transitions. Word has length 95 [2022-12-14 03:16:41,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:16:41,610 INFO L495 AbstractCegarLoop]: Abstraction has 829 states and 1062 transitions. [2022-12-14 03:16:41,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:41,610 INFO L276 IsEmpty]: Start isEmpty. Operand 829 states and 1062 transitions. [2022-12-14 03:16:41,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-12-14 03:16:41,611 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:16:41,611 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:16:41,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-12-14 03:16:41,611 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:16:41,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:16:41,612 INFO L85 PathProgramCache]: Analyzing trace with hash -1342768443, now seen corresponding path program 1 times [2022-12-14 03:16:41,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:16:41,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027263838] [2022-12-14 03:16:41,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:16:41,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:16:41,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:16:41,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:16:41,758 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:16:41,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027263838] [2022-12-14 03:16:41,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027263838] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:16:41,758 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:16:41,758 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 03:16:41,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573785229] [2022-12-14 03:16:41,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:16:41,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 03:16:41,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:16:41,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 03:16:41,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-14 03:16:41,759 INFO L87 Difference]: Start difference. First operand 829 states and 1062 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:43,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:16:43,961 INFO L93 Difference]: Finished difference Result 1545 states and 1992 transitions. [2022-12-14 03:16:43,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 03:16:43,962 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2022-12-14 03:16:43,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:16:43,963 INFO L225 Difference]: With dead ends: 1545 [2022-12-14 03:16:43,963 INFO L226 Difference]: Without dead ends: 1437 [2022-12-14 03:16:43,963 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2022-12-14 03:16:43,964 INFO L413 NwaCegarLoop]: 640 mSDtfsCounter, 2445 mSDsluCounter, 2019 mSDsCounter, 0 mSdLazyCounter, 2118 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2445 SdHoareTripleChecker+Valid, 2659 SdHoareTripleChecker+Invalid, 2121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-14 03:16:43,964 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2445 Valid, 2659 Invalid, 2121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2118 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-14 03:16:43,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1437 states. [2022-12-14 03:16:44,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1437 to 829. [2022-12-14 03:16:44,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 829 states, 807 states have (on average 1.3135068153655514) internal successors, (1060), 828 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:44,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 829 states and 1060 transitions. [2022-12-14 03:16:44,263 INFO L78 Accepts]: Start accepts. Automaton has 829 states and 1060 transitions. Word has length 95 [2022-12-14 03:16:44,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:16:44,263 INFO L495 AbstractCegarLoop]: Abstraction has 829 states and 1060 transitions. [2022-12-14 03:16:44,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:44,263 INFO L276 IsEmpty]: Start isEmpty. Operand 829 states and 1060 transitions. [2022-12-14 03:16:44,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-12-14 03:16:44,264 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:16:44,264 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:16:44,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-12-14 03:16:44,264 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:16:44,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:16:44,264 INFO L85 PathProgramCache]: Analyzing trace with hash 1975449778, now seen corresponding path program 1 times [2022-12-14 03:16:44,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:16:44,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424889342] [2022-12-14 03:16:44,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:16:44,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:16:44,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:16:44,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:16:44,411 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:16:44,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424889342] [2022-12-14 03:16:44,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424889342] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:16:44,411 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:16:44,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 03:16:44,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450907289] [2022-12-14 03:16:44,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:16:44,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 03:16:44,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:16:44,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 03:16:44,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 03:16:44,413 INFO L87 Difference]: Start difference. First operand 829 states and 1060 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:46,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:16:46,027 INFO L93 Difference]: Finished difference Result 1475 states and 1883 transitions. [2022-12-14 03:16:46,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 03:16:46,027 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2022-12-14 03:16:46,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:16:46,028 INFO L225 Difference]: With dead ends: 1475 [2022-12-14 03:16:46,028 INFO L226 Difference]: Without dead ends: 1381 [2022-12-14 03:16:46,029 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-12-14 03:16:46,029 INFO L413 NwaCegarLoop]: 520 mSDtfsCounter, 1931 mSDsluCounter, 1606 mSDsCounter, 0 mSdLazyCounter, 1741 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1931 SdHoareTripleChecker+Valid, 2126 SdHoareTripleChecker+Invalid, 1745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1741 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-14 03:16:46,029 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1931 Valid, 2126 Invalid, 1745 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1741 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-14 03:16:46,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1381 states. [2022-12-14 03:16:46,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1381 to 829. [2022-12-14 03:16:46,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 829 states, 807 states have (on average 1.312267657992565) internal successors, (1059), 828 states have internal predecessors, (1059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:46,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 829 states and 1059 transitions. [2022-12-14 03:16:46,358 INFO L78 Accepts]: Start accepts. Automaton has 829 states and 1059 transitions. Word has length 95 [2022-12-14 03:16:46,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:16:46,358 INFO L495 AbstractCegarLoop]: Abstraction has 829 states and 1059 transitions. [2022-12-14 03:16:46,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:46,359 INFO L276 IsEmpty]: Start isEmpty. Operand 829 states and 1059 transitions. [2022-12-14 03:16:46,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-12-14 03:16:46,359 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:16:46,359 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:16:46,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-12-14 03:16:46,360 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:16:46,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:16:46,360 INFO L85 PathProgramCache]: Analyzing trace with hash 305613409, now seen corresponding path program 1 times [2022-12-14 03:16:46,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:16:46,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162495881] [2022-12-14 03:16:46,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:16:46,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:16:46,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:16:46,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:16:46,528 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:16:46,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162495881] [2022-12-14 03:16:46,528 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162495881] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:16:46,529 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:16:46,529 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 03:16:46,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513316133] [2022-12-14 03:16:46,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:16:46,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 03:16:46,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:16:46,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 03:16:46,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 03:16:46,530 INFO L87 Difference]: Start difference. First operand 829 states and 1059 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:48,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:16:48,287 INFO L93 Difference]: Finished difference Result 1386 states and 1760 transitions. [2022-12-14 03:16:48,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 03:16:48,288 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2022-12-14 03:16:48,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:16:48,289 INFO L225 Difference]: With dead ends: 1386 [2022-12-14 03:16:48,290 INFO L226 Difference]: Without dead ends: 1381 [2022-12-14 03:16:48,290 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-12-14 03:16:48,290 INFO L413 NwaCegarLoop]: 544 mSDtfsCounter, 1878 mSDsluCounter, 1638 mSDsCounter, 0 mSdLazyCounter, 1822 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1878 SdHoareTripleChecker+Valid, 2182 SdHoareTripleChecker+Invalid, 1826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1822 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-14 03:16:48,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1878 Valid, 2182 Invalid, 1826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1822 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-14 03:16:48,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1381 states. [2022-12-14 03:16:48,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1381 to 829. [2022-12-14 03:16:48,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 829 states, 807 states have (on average 1.3110285006195788) internal successors, (1058), 828 states have internal predecessors, (1058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:48,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 829 states and 1058 transitions. [2022-12-14 03:16:48,703 INFO L78 Accepts]: Start accepts. Automaton has 829 states and 1058 transitions. Word has length 95 [2022-12-14 03:16:48,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:16:48,704 INFO L495 AbstractCegarLoop]: Abstraction has 829 states and 1058 transitions. [2022-12-14 03:16:48,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:48,704 INFO L276 IsEmpty]: Start isEmpty. Operand 829 states and 1058 transitions. [2022-12-14 03:16:48,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-12-14 03:16:48,704 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:16:48,705 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:16:48,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-12-14 03:16:48,705 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:16:48,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:16:48,705 INFO L85 PathProgramCache]: Analyzing trace with hash -2075594127, now seen corresponding path program 1 times [2022-12-14 03:16:48,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:16:48,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391594455] [2022-12-14 03:16:48,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:16:48,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:16:48,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:16:48,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:16:48,855 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:16:48,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391594455] [2022-12-14 03:16:48,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391594455] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:16:48,856 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:16:48,856 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 03:16:48,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744307263] [2022-12-14 03:16:48,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:16:48,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 03:16:48,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:16:48,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 03:16:48,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-14 03:16:48,857 INFO L87 Difference]: Start difference. First operand 829 states and 1058 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:51,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:16:51,203 INFO L93 Difference]: Finished difference Result 1537 states and 1976 transitions. [2022-12-14 03:16:51,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 03:16:51,204 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2022-12-14 03:16:51,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:16:51,205 INFO L225 Difference]: With dead ends: 1537 [2022-12-14 03:16:51,205 INFO L226 Difference]: Without dead ends: 1437 [2022-12-14 03:16:51,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2022-12-14 03:16:51,205 INFO L413 NwaCegarLoop]: 640 mSDtfsCounter, 2434 mSDsluCounter, 2019 mSDsCounter, 0 mSdLazyCounter, 2101 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2434 SdHoareTripleChecker+Valid, 2659 SdHoareTripleChecker+Invalid, 2104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-14 03:16:51,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2434 Valid, 2659 Invalid, 2104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2101 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-14 03:16:51,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1437 states. [2022-12-14 03:16:51,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1437 to 829. [2022-12-14 03:16:51,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 829 states, 807 states have (on average 1.3097893432465924) internal successors, (1057), 828 states have internal predecessors, (1057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:51,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 829 states and 1057 transitions. [2022-12-14 03:16:51,517 INFO L78 Accepts]: Start accepts. Automaton has 829 states and 1057 transitions. Word has length 95 [2022-12-14 03:16:51,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:16:51,517 INFO L495 AbstractCegarLoop]: Abstraction has 829 states and 1057 transitions. [2022-12-14 03:16:51,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:51,517 INFO L276 IsEmpty]: Start isEmpty. Operand 829 states and 1057 transitions. [2022-12-14 03:16:51,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-12-14 03:16:51,518 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:16:51,518 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:16:51,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-12-14 03:16:51,518 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:16:51,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:16:51,518 INFO L85 PathProgramCache]: Analyzing trace with hash -189923424, now seen corresponding path program 1 times [2022-12-14 03:16:51,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:16:51,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493184746] [2022-12-14 03:16:51,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:16:51,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:16:51,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:16:51,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:16:51,689 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:16:51,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493184746] [2022-12-14 03:16:51,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493184746] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:16:51,689 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:16:51,689 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 03:16:51,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612074496] [2022-12-14 03:16:51,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:16:51,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 03:16:51,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:16:51,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 03:16:51,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 03:16:51,690 INFO L87 Difference]: Start difference. First operand 829 states and 1057 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:53,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:16:53,515 INFO L93 Difference]: Finished difference Result 1475 states and 1879 transitions. [2022-12-14 03:16:53,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 03:16:53,516 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2022-12-14 03:16:53,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:16:53,517 INFO L225 Difference]: With dead ends: 1475 [2022-12-14 03:16:53,517 INFO L226 Difference]: Without dead ends: 1381 [2022-12-14 03:16:53,518 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-12-14 03:16:53,518 INFO L413 NwaCegarLoop]: 564 mSDtfsCounter, 2605 mSDsluCounter, 1702 mSDsCounter, 0 mSdLazyCounter, 1934 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2605 SdHoareTripleChecker+Valid, 2266 SdHoareTripleChecker+Invalid, 1937 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1934 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-14 03:16:53,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2605 Valid, 2266 Invalid, 1937 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1934 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-14 03:16:53,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1381 states. [2022-12-14 03:16:53,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1381 to 829. [2022-12-14 03:16:53,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 829 states, 807 states have (on average 1.308550185873606) internal successors, (1056), 828 states have internal predecessors, (1056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:53,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 829 states and 1056 transitions. [2022-12-14 03:16:53,847 INFO L78 Accepts]: Start accepts. Automaton has 829 states and 1056 transitions. Word has length 95 [2022-12-14 03:16:53,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:16:53,847 INFO L495 AbstractCegarLoop]: Abstraction has 829 states and 1056 transitions. [2022-12-14 03:16:53,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:53,847 INFO L276 IsEmpty]: Start isEmpty. Operand 829 states and 1056 transitions. [2022-12-14 03:16:53,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-12-14 03:16:53,849 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:16:53,849 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:16:53,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-12-14 03:16:53,849 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:16:53,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:16:53,850 INFO L85 PathProgramCache]: Analyzing trace with hash -1916605268, now seen corresponding path program 1 times [2022-12-14 03:16:53,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:16:53,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713473364] [2022-12-14 03:16:53,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:16:53,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:16:53,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:16:53,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:16:53,983 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:16:53,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713473364] [2022-12-14 03:16:53,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713473364] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:16:53,983 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:16:53,983 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 03:16:53,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173048605] [2022-12-14 03:16:53,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:16:53,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 03:16:53,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:16:53,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 03:16:53,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 03:16:53,985 INFO L87 Difference]: Start difference. First operand 829 states and 1056 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:55,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:16:55,795 INFO L93 Difference]: Finished difference Result 1478 states and 1880 transitions. [2022-12-14 03:16:55,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 03:16:55,795 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2022-12-14 03:16:55,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:16:55,796 INFO L225 Difference]: With dead ends: 1478 [2022-12-14 03:16:55,796 INFO L226 Difference]: Without dead ends: 1381 [2022-12-14 03:16:55,797 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-12-14 03:16:55,797 INFO L413 NwaCegarLoop]: 549 mSDtfsCounter, 1861 mSDsluCounter, 1651 mSDsCounter, 0 mSdLazyCounter, 1820 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1861 SdHoareTripleChecker+Valid, 2200 SdHoareTripleChecker+Invalid, 1824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1820 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-14 03:16:55,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1861 Valid, 2200 Invalid, 1824 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1820 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-14 03:16:55,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1381 states. [2022-12-14 03:16:56,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1381 to 829. [2022-12-14 03:16:56,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 829 states, 807 states have (on average 1.3073110285006195) internal successors, (1055), 828 states have internal predecessors, (1055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:56,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 829 states and 1055 transitions. [2022-12-14 03:16:56,117 INFO L78 Accepts]: Start accepts. Automaton has 829 states and 1055 transitions. Word has length 95 [2022-12-14 03:16:56,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:16:56,118 INFO L495 AbstractCegarLoop]: Abstraction has 829 states and 1055 transitions. [2022-12-14 03:16:56,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:56,118 INFO L276 IsEmpty]: Start isEmpty. Operand 829 states and 1055 transitions. [2022-12-14 03:16:56,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-12-14 03:16:56,118 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:16:56,118 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:16:56,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-12-14 03:16:56,119 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:16:56,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:16:56,119 INFO L85 PathProgramCache]: Analyzing trace with hash -249249413, now seen corresponding path program 1 times [2022-12-14 03:16:56,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:16:56,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026187065] [2022-12-14 03:16:56,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:16:56,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:16:56,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:16:56,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:16:56,254 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:16:56,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026187065] [2022-12-14 03:16:56,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026187065] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:16:56,255 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:16:56,255 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 03:16:56,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136942094] [2022-12-14 03:16:56,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:16:56,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 03:16:56,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:16:56,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 03:16:56,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 03:16:56,256 INFO L87 Difference]: Start difference. First operand 829 states and 1055 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:58,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:16:58,210 INFO L93 Difference]: Finished difference Result 1475 states and 1875 transitions. [2022-12-14 03:16:58,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 03:16:58,211 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2022-12-14 03:16:58,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:16:58,212 INFO L225 Difference]: With dead ends: 1475 [2022-12-14 03:16:58,212 INFO L226 Difference]: Without dead ends: 1381 [2022-12-14 03:16:58,213 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-12-14 03:16:58,213 INFO L413 NwaCegarLoop]: 524 mSDtfsCounter, 2734 mSDsluCounter, 1618 mSDsCounter, 0 mSdLazyCounter, 1727 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2734 SdHoareTripleChecker+Valid, 2142 SdHoareTripleChecker+Invalid, 1731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1727 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-14 03:16:58,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2734 Valid, 2142 Invalid, 1731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1727 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-14 03:16:58,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1381 states. [2022-12-14 03:16:58,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1381 to 829. [2022-12-14 03:16:58,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 829 states, 807 states have (on average 1.3060718711276331) internal successors, (1054), 828 states have internal predecessors, (1054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:58,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 829 states and 1054 transitions. [2022-12-14 03:16:58,596 INFO L78 Accepts]: Start accepts. Automaton has 829 states and 1054 transitions. Word has length 95 [2022-12-14 03:16:58,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:16:58,596 INFO L495 AbstractCegarLoop]: Abstraction has 829 states and 1054 transitions. [2022-12-14 03:16:58,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:16:58,596 INFO L276 IsEmpty]: Start isEmpty. Operand 829 states and 1054 transitions. [2022-12-14 03:16:58,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-12-14 03:16:58,597 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:16:58,597 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:16:58,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-12-14 03:16:58,597 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:16:58,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:16:58,598 INFO L85 PathProgramCache]: Analyzing trace with hash -907673395, now seen corresponding path program 1 times [2022-12-14 03:16:58,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:16:58,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362477162] [2022-12-14 03:16:58,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:16:58,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:16:58,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:16:59,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:16:59,129 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:16:59,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362477162] [2022-12-14 03:16:59,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362477162] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:16:59,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:16:59,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-14 03:16:59,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358634428] [2022-12-14 03:16:59,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:16:59,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-14 03:16:59,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:16:59,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-14 03:16:59,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2022-12-14 03:16:59,130 INFO L87 Difference]: Start difference. First operand 829 states and 1054 transitions. Second operand has 15 states, 15 states have (on average 6.333333333333333) internal successors, (95), 14 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:17:02,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:17:02,149 INFO L93 Difference]: Finished difference Result 1337 states and 1676 transitions. [2022-12-14 03:17:02,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-14 03:17:02,149 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 6.333333333333333) internal successors, (95), 14 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2022-12-14 03:17:02,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:17:02,150 INFO L225 Difference]: With dead ends: 1337 [2022-12-14 03:17:02,150 INFO L226 Difference]: Without dead ends: 1050 [2022-12-14 03:17:02,150 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=195, Invalid=561, Unknown=0, NotChecked=0, Total=756 [2022-12-14 03:17:02,151 INFO L413 NwaCegarLoop]: 978 mSDtfsCounter, 1839 mSDsluCounter, 9314 mSDsCounter, 0 mSdLazyCounter, 2692 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1839 SdHoareTripleChecker+Valid, 10292 SdHoareTripleChecker+Invalid, 2695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2692 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-12-14 03:17:02,151 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1839 Valid, 10292 Invalid, 2695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2692 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-12-14 03:17:02,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1050 states. [2022-12-14 03:17:02,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1050 to 749. [2022-12-14 03:17:02,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 749 states, 728 states have (on average 1.3021978021978022) internal successors, (948), 748 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:17:02,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 749 states to 749 states and 948 transitions. [2022-12-14 03:17:02,464 INFO L78 Accepts]: Start accepts. Automaton has 749 states and 948 transitions. Word has length 95 [2022-12-14 03:17:02,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:17:02,464 INFO L495 AbstractCegarLoop]: Abstraction has 749 states and 948 transitions. [2022-12-14 03:17:02,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 6.333333333333333) internal successors, (95), 14 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:17:02,465 INFO L276 IsEmpty]: Start isEmpty. Operand 749 states and 948 transitions. [2022-12-14 03:17:02,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-12-14 03:17:02,465 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:17:02,465 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:17:02,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-12-14 03:17:02,466 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:17:02,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:17:02,466 INFO L85 PathProgramCache]: Analyzing trace with hash -1380049275, now seen corresponding path program 1 times [2022-12-14 03:17:02,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:17:02,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201220537] [2022-12-14 03:17:02,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:17:02,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:17:02,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:17:02,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:17:02,605 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:17:02,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201220537] [2022-12-14 03:17:02,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201220537] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:17:02,605 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:17:02,606 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 03:17:02,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045766650] [2022-12-14 03:17:02,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:17:02,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 03:17:02,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:17:02,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 03:17:02,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 03:17:02,606 INFO L87 Difference]: Start difference. First operand 749 states and 948 transitions. Second operand has 8 states, 8 states have (on average 12.0) internal successors, (96), 7 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:17:04,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:17:04,330 INFO L93 Difference]: Finished difference Result 1362 states and 1730 transitions. [2022-12-14 03:17:04,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 03:17:04,331 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.0) internal successors, (96), 7 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-12-14 03:17:04,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:17:04,332 INFO L225 Difference]: With dead ends: 1362 [2022-12-14 03:17:04,332 INFO L226 Difference]: Without dead ends: 1268 [2022-12-14 03:17:04,332 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-12-14 03:17:04,333 INFO L413 NwaCegarLoop]: 454 mSDtfsCounter, 1648 mSDsluCounter, 1407 mSDsCounter, 0 mSdLazyCounter, 1447 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1648 SdHoareTripleChecker+Valid, 1861 SdHoareTripleChecker+Invalid, 1451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-14 03:17:04,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1648 Valid, 1861 Invalid, 1451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1447 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-14 03:17:04,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1268 states. [2022-12-14 03:17:04,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1268 to 747. [2022-12-14 03:17:04,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 747 states, 726 states have (on average 1.300275482093664) internal successors, (944), 746 states have internal predecessors, (944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:17:04,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 747 states to 747 states and 944 transitions. [2022-12-14 03:17:04,650 INFO L78 Accepts]: Start accepts. Automaton has 747 states and 944 transitions. Word has length 96 [2022-12-14 03:17:04,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:17:04,650 INFO L495 AbstractCegarLoop]: Abstraction has 747 states and 944 transitions. [2022-12-14 03:17:04,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.0) internal successors, (96), 7 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:17:04,650 INFO L276 IsEmpty]: Start isEmpty. Operand 747 states and 944 transitions. [2022-12-14 03:17:04,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-12-14 03:17:04,651 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:17:04,651 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:17:04,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-12-14 03:17:04,652 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:17:04,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:17:04,652 INFO L85 PathProgramCache]: Analyzing trace with hash -2076905099, now seen corresponding path program 1 times [2022-12-14 03:17:04,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:17:04,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028804032] [2022-12-14 03:17:04,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:17:04,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:17:04,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:17:05,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:17:05,113 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:17:05,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028804032] [2022-12-14 03:17:05,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028804032] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:17:05,113 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:17:05,113 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-14 03:17:05,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533511296] [2022-12-14 03:17:05,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:17:05,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-14 03:17:05,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:17:05,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-14 03:17:05,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2022-12-14 03:17:05,115 INFO L87 Difference]: Start difference. First operand 747 states and 944 transitions. Second operand has 15 states, 15 states have (on average 6.4) internal successors, (96), 14 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:17:07,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:17:07,411 INFO L93 Difference]: Finished difference Result 1624 states and 2101 transitions. [2022-12-14 03:17:07,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-14 03:17:07,412 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 6.4) internal successors, (96), 14 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-12-14 03:17:07,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:17:07,413 INFO L225 Difference]: With dead ends: 1624 [2022-12-14 03:17:07,413 INFO L226 Difference]: Without dead ends: 1488 [2022-12-14 03:17:07,413 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2022-12-14 03:17:07,414 INFO L413 NwaCegarLoop]: 951 mSDtfsCounter, 2208 mSDsluCounter, 5485 mSDsCounter, 0 mSdLazyCounter, 801 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2208 SdHoareTripleChecker+Valid, 6436 SdHoareTripleChecker+Invalid, 801 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 801 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-14 03:17:07,414 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2208 Valid, 6436 Invalid, 801 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 801 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-14 03:17:07,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1488 states. [2022-12-14 03:17:07,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1488 to 703. [2022-12-14 03:17:07,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 703 states, 683 states have (on average 1.2972181551976574) internal successors, (886), 702 states have internal predecessors, (886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:17:07,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 703 states to 703 states and 886 transitions. [2022-12-14 03:17:07,749 INFO L78 Accepts]: Start accepts. Automaton has 703 states and 886 transitions. Word has length 96 [2022-12-14 03:17:07,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:17:07,750 INFO L495 AbstractCegarLoop]: Abstraction has 703 states and 886 transitions. [2022-12-14 03:17:07,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 6.4) internal successors, (96), 14 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:17:07,750 INFO L276 IsEmpty]: Start isEmpty. Operand 703 states and 886 transitions. [2022-12-14 03:17:07,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-12-14 03:17:07,750 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:17:07,751 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:17:07,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-12-14 03:17:07,751 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:17:07,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:17:07,751 INFO L85 PathProgramCache]: Analyzing trace with hash -1032800989, now seen corresponding path program 1 times [2022-12-14 03:17:07,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:17:07,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735149704] [2022-12-14 03:17:07,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:17:07,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:17:07,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:17:07,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:17:07,912 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:17:07,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735149704] [2022-12-14 03:17:07,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735149704] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:17:07,912 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:17:07,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 03:17:07,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212917525] [2022-12-14 03:17:07,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:17:07,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 03:17:07,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:17:07,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 03:17:07,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-14 03:17:07,913 INFO L87 Difference]: Start difference. First operand 703 states and 886 transitions. Second operand has 8 states, 8 states have (on average 12.0) internal successors, (96), 7 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:17:09,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:17:09,743 INFO L93 Difference]: Finished difference Result 1342 states and 1714 transitions. [2022-12-14 03:17:09,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 03:17:09,743 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.0) internal successors, (96), 7 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-12-14 03:17:09,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:17:09,744 INFO L225 Difference]: With dead ends: 1342 [2022-12-14 03:17:09,744 INFO L226 Difference]: Without dead ends: 1238 [2022-12-14 03:17:09,745 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2022-12-14 03:17:09,745 INFO L413 NwaCegarLoop]: 461 mSDtfsCounter, 2060 mSDsluCounter, 1473 mSDsCounter, 0 mSdLazyCounter, 1375 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2060 SdHoareTripleChecker+Valid, 1934 SdHoareTripleChecker+Invalid, 1379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-14 03:17:09,745 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2060 Valid, 1934 Invalid, 1379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1375 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-14 03:17:09,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1238 states. [2022-12-14 03:17:10,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1238 to 703. [2022-12-14 03:17:10,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 703 states, 683 states have (on average 1.2957540263543192) internal successors, (885), 702 states have internal predecessors, (885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:17:10,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 703 states to 703 states and 885 transitions. [2022-12-14 03:17:10,083 INFO L78 Accepts]: Start accepts. Automaton has 703 states and 885 transitions. Word has length 96 [2022-12-14 03:17:10,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:17:10,083 INFO L495 AbstractCegarLoop]: Abstraction has 703 states and 885 transitions. [2022-12-14 03:17:10,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.0) internal successors, (96), 7 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:17:10,083 INFO L276 IsEmpty]: Start isEmpty. Operand 703 states and 885 transitions. [2022-12-14 03:17:10,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-12-14 03:17:10,084 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:17:10,084 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:17:10,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-12-14 03:17:10,084 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:17:10,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:17:10,085 INFO L85 PathProgramCache]: Analyzing trace with hash -1797153171, now seen corresponding path program 1 times [2022-12-14 03:17:10,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:17:10,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310157016] [2022-12-14 03:17:10,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:17:10,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:17:10,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:17:10,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:17:10,214 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:17:10,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310157016] [2022-12-14 03:17:10,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310157016] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:17:10,215 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:17:10,215 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 03:17:10,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790501949] [2022-12-14 03:17:10,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:17:10,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 03:17:10,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:17:10,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 03:17:10,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 03:17:10,216 INFO L87 Difference]: Start difference. First operand 703 states and 885 transitions. Second operand has 8 states, 8 states have (on average 12.0) internal successors, (96), 7 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:17:11,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:17:11,829 INFO L93 Difference]: Finished difference Result 1296 states and 1643 transitions. [2022-12-14 03:17:11,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 03:17:11,829 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.0) internal successors, (96), 7 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-12-14 03:17:11,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:17:11,830 INFO L225 Difference]: With dead ends: 1296 [2022-12-14 03:17:11,830 INFO L226 Difference]: Without dead ends: 1202 [2022-12-14 03:17:11,831 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-12-14 03:17:11,831 INFO L413 NwaCegarLoop]: 425 mSDtfsCounter, 1476 mSDsluCounter, 1310 mSDsCounter, 0 mSdLazyCounter, 1327 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1476 SdHoareTripleChecker+Valid, 1735 SdHoareTripleChecker+Invalid, 1331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-14 03:17:11,831 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1476 Valid, 1735 Invalid, 1331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1327 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-14 03:17:11,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1202 states. [2022-12-14 03:17:12,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1202 to 703. [2022-12-14 03:17:12,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 703 states, 683 states have (on average 1.294289897510981) internal successors, (884), 702 states have internal predecessors, (884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:17:12,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 703 states to 703 states and 884 transitions. [2022-12-14 03:17:12,169 INFO L78 Accepts]: Start accepts. Automaton has 703 states and 884 transitions. Word has length 96 [2022-12-14 03:17:12,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:17:12,170 INFO L495 AbstractCegarLoop]: Abstraction has 703 states and 884 transitions. [2022-12-14 03:17:12,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.0) internal successors, (96), 7 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:17:12,170 INFO L276 IsEmpty]: Start isEmpty. Operand 703 states and 884 transitions. [2022-12-14 03:17:12,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-12-14 03:17:12,170 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:17:12,170 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:17:12,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-12-14 03:17:12,171 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:17:12,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:17:12,171 INFO L85 PathProgramCache]: Analyzing trace with hash -239806660, now seen corresponding path program 1 times [2022-12-14 03:17:12,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:17:12,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724143147] [2022-12-14 03:17:12,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:17:12,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:17:12,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:17:12,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:17:12,298 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:17:12,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724143147] [2022-12-14 03:17:12,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724143147] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:17:12,298 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:17:12,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 03:17:12,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039034994] [2022-12-14 03:17:12,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:17:12,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 03:17:12,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:17:12,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 03:17:12,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 03:17:12,299 INFO L87 Difference]: Start difference. First operand 703 states and 884 transitions. Second operand has 8 states, 8 states have (on average 12.0) internal successors, (96), 7 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:17:13,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:17:13,961 INFO L93 Difference]: Finished difference Result 1299 states and 1645 transitions. [2022-12-14 03:17:13,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 03:17:13,962 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.0) internal successors, (96), 7 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-12-14 03:17:13,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:17:13,963 INFO L225 Difference]: With dead ends: 1299 [2022-12-14 03:17:13,963 INFO L226 Difference]: Without dead ends: 1202 [2022-12-14 03:17:13,964 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-12-14 03:17:13,964 INFO L413 NwaCegarLoop]: 434 mSDtfsCounter, 2098 mSDsluCounter, 1325 mSDsCounter, 0 mSdLazyCounter, 1325 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2098 SdHoareTripleChecker+Valid, 1759 SdHoareTripleChecker+Invalid, 1329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-14 03:17:13,964 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2098 Valid, 1759 Invalid, 1329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1325 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-14 03:17:13,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1202 states. [2022-12-14 03:17:14,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1202 to 703. [2022-12-14 03:17:14,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 703 states, 683 states have (on average 1.2928257686676428) internal successors, (883), 702 states have internal predecessors, (883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:17:14,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 703 states to 703 states and 883 transitions. [2022-12-14 03:17:14,305 INFO L78 Accepts]: Start accepts. Automaton has 703 states and 883 transitions. Word has length 96 [2022-12-14 03:17:14,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:17:14,306 INFO L495 AbstractCegarLoop]: Abstraction has 703 states and 883 transitions. [2022-12-14 03:17:14,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.0) internal successors, (96), 7 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:17:14,306 INFO L276 IsEmpty]: Start isEmpty. Operand 703 states and 883 transitions. [2022-12-14 03:17:14,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-12-14 03:17:14,306 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:17:14,306 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:17:14,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-12-14 03:17:14,307 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:17:14,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:17:14,307 INFO L85 PathProgramCache]: Analyzing trace with hash -1998705771, now seen corresponding path program 1 times [2022-12-14 03:17:14,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:17:14,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596541885] [2022-12-14 03:17:14,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:17:14,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:17:14,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:17:14,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:17:14,450 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:17:14,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596541885] [2022-12-14 03:17:14,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596541885] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:17:14,450 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:17:14,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 03:17:14,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203830137] [2022-12-14 03:17:14,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:17:14,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 03:17:14,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:17:14,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 03:17:14,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 03:17:14,451 INFO L87 Difference]: Start difference. First operand 703 states and 883 transitions. Second operand has 8 states, 8 states have (on average 12.0) internal successors, (96), 7 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:17:16,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:17:16,247 INFO L93 Difference]: Finished difference Result 1347 states and 1715 transitions. [2022-12-14 03:17:16,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 03:17:16,247 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.0) internal successors, (96), 7 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-12-14 03:17:16,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:17:16,248 INFO L225 Difference]: With dead ends: 1347 [2022-12-14 03:17:16,248 INFO L226 Difference]: Without dead ends: 1238 [2022-12-14 03:17:16,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-12-14 03:17:16,249 INFO L413 NwaCegarLoop]: 522 mSDtfsCounter, 1298 mSDsluCounter, 1559 mSDsCounter, 0 mSdLazyCounter, 1620 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1298 SdHoareTripleChecker+Valid, 2081 SdHoareTripleChecker+Invalid, 1623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-14 03:17:16,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1298 Valid, 2081 Invalid, 1623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1620 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-14 03:17:16,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1238 states. [2022-12-14 03:17:16,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1238 to 703. [2022-12-14 03:17:16,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 703 states, 683 states have (on average 1.2913616398243046) internal successors, (882), 702 states have internal predecessors, (882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:17:16,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 703 states to 703 states and 882 transitions. [2022-12-14 03:17:16,595 INFO L78 Accepts]: Start accepts. Automaton has 703 states and 882 transitions. Word has length 96 [2022-12-14 03:17:16,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:17:16,595 INFO L495 AbstractCegarLoop]: Abstraction has 703 states and 882 transitions. [2022-12-14 03:17:16,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.0) internal successors, (96), 7 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:17:16,595 INFO L276 IsEmpty]: Start isEmpty. Operand 703 states and 882 transitions. [2022-12-14 03:17:16,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-12-14 03:17:16,596 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:17:16,596 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:17:16,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-12-14 03:17:16,596 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:17:16,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:17:16,596 INFO L85 PathProgramCache]: Analyzing trace with hash -1212843376, now seen corresponding path program 1 times [2022-12-14 03:17:16,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:17:16,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067445854] [2022-12-14 03:17:16,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:17:16,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:17:16,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:17:16,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:17:16,929 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:17:16,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067445854] [2022-12-14 03:17:16,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067445854] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:17:16,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:17:16,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-14 03:17:16,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870034758] [2022-12-14 03:17:16,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:17:16,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 03:17:16,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:17:16,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 03:17:16,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-12-14 03:17:16,930 INFO L87 Difference]: Start difference. First operand 703 states and 882 transitions. Second operand has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:17:19,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:17:19,553 INFO L93 Difference]: Finished difference Result 1548 states and 1980 transitions. [2022-12-14 03:17:19,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 03:17:19,554 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-12-14 03:17:19,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:17:19,555 INFO L225 Difference]: With dead ends: 1548 [2022-12-14 03:17:19,555 INFO L226 Difference]: Without dead ends: 1434 [2022-12-14 03:17:19,555 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-12-14 03:17:19,555 INFO L413 NwaCegarLoop]: 871 mSDtfsCounter, 2369 mSDsluCounter, 4043 mSDsCounter, 0 mSdLazyCounter, 1124 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2369 SdHoareTripleChecker+Valid, 4914 SdHoareTripleChecker+Invalid, 1124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-14 03:17:19,555 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2369 Valid, 4914 Invalid, 1124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1124 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-14 03:17:19,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1434 states. [2022-12-14 03:17:19,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1434 to 681. [2022-12-14 03:17:19,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 681 states, 663 states have (on average 1.2850678733031675) internal successors, (852), 680 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:17:19,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 681 states to 681 states and 852 transitions. [2022-12-14 03:17:19,918 INFO L78 Accepts]: Start accepts. Automaton has 681 states and 852 transitions. Word has length 97 [2022-12-14 03:17:19,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:17:19,918 INFO L495 AbstractCegarLoop]: Abstraction has 681 states and 852 transitions. [2022-12-14 03:17:19,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:17:19,918 INFO L276 IsEmpty]: Start isEmpty. Operand 681 states and 852 transitions. [2022-12-14 03:17:19,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-12-14 03:17:19,919 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:17:19,919 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:17:19,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-12-14 03:17:19,919 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:17:19,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:17:19,920 INFO L85 PathProgramCache]: Analyzing trace with hash 638588087, now seen corresponding path program 1 times [2022-12-14 03:17:19,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:17:19,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428436830] [2022-12-14 03:17:19,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:17:19,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:17:19,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:17:20,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:17:20,207 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:17:20,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428436830] [2022-12-14 03:17:20,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428436830] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:17:20,208 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:17:20,208 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-14 03:17:20,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050100758] [2022-12-14 03:17:20,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:17:20,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 03:17:20,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:17:20,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 03:17:20,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-12-14 03:17:20,209 INFO L87 Difference]: Start difference. First operand 681 states and 852 transitions. Second operand has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:17:21,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:17:21,820 INFO L93 Difference]: Finished difference Result 1090 states and 1359 transitions. [2022-12-14 03:17:21,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 03:17:21,821 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-12-14 03:17:21,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:17:21,822 INFO L225 Difference]: With dead ends: 1090 [2022-12-14 03:17:21,822 INFO L226 Difference]: Without dead ends: 992 [2022-12-14 03:17:21,822 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-12-14 03:17:21,822 INFO L413 NwaCegarLoop]: 490 mSDtfsCounter, 2302 mSDsluCounter, 2607 mSDsCounter, 0 mSdLazyCounter, 1480 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2302 SdHoareTripleChecker+Valid, 3097 SdHoareTripleChecker+Invalid, 1480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-14 03:17:21,823 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2302 Valid, 3097 Invalid, 1480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1480 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-14 03:17:21,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 992 states. [2022-12-14 03:17:22,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 992 to 669. [2022-12-14 03:17:22,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 669 states, 652 states have (on average 1.280674846625767) internal successors, (835), 668 states have internal predecessors, (835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:17:22,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 669 states to 669 states and 835 transitions. [2022-12-14 03:17:22,200 INFO L78 Accepts]: Start accepts. Automaton has 669 states and 835 transitions. Word has length 97 [2022-12-14 03:17:22,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:17:22,200 INFO L495 AbstractCegarLoop]: Abstraction has 669 states and 835 transitions. [2022-12-14 03:17:22,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:17:22,200 INFO L276 IsEmpty]: Start isEmpty. Operand 669 states and 835 transitions. [2022-12-14 03:17:22,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-12-14 03:17:22,201 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:17:22,201 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:17:22,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-12-14 03:17:22,201 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:17:22,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:17:22,201 INFO L85 PathProgramCache]: Analyzing trace with hash 827117724, now seen corresponding path program 1 times [2022-12-14 03:17:22,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:17:22,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063928583] [2022-12-14 03:17:22,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:17:22,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:17:22,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:17:22,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:17:22,529 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:17:22,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063928583] [2022-12-14 03:17:22,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063928583] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:17:22,529 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:17:22,529 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-14 03:17:22,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443759628] [2022-12-14 03:17:22,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:17:22,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 03:17:22,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:17:22,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 03:17:22,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-12-14 03:17:22,530 INFO L87 Difference]: Start difference. First operand 669 states and 835 transitions. Second operand has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:17:24,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:17:24,103 INFO L93 Difference]: Finished difference Result 1096 states and 1376 transitions. [2022-12-14 03:17:24,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 03:17:24,103 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-12-14 03:17:24,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:17:24,104 INFO L225 Difference]: With dead ends: 1096 [2022-12-14 03:17:24,104 INFO L226 Difference]: Without dead ends: 984 [2022-12-14 03:17:24,105 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2022-12-14 03:17:24,105 INFO L413 NwaCegarLoop]: 642 mSDtfsCounter, 2537 mSDsluCounter, 3311 mSDsCounter, 0 mSdLazyCounter, 955 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2537 SdHoareTripleChecker+Valid, 3953 SdHoareTripleChecker+Invalid, 955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 955 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-14 03:17:24,105 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2537 Valid, 3953 Invalid, 955 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 955 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-14 03:17:24,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 984 states. [2022-12-14 03:17:24,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 984 to 645. [2022-12-14 03:17:24,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 629 states have (on average 1.2766295707472177) internal successors, (803), 644 states have internal predecessors, (803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:17:24,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 803 transitions. [2022-12-14 03:17:24,480 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 803 transitions. Word has length 97 [2022-12-14 03:17:24,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:17:24,480 INFO L495 AbstractCegarLoop]: Abstraction has 645 states and 803 transitions. [2022-12-14 03:17:24,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:17:24,480 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 803 transitions. [2022-12-14 03:17:24,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-12-14 03:17:24,481 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:17:24,481 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:17:24,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-12-14 03:17:24,481 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:17:24,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:17:24,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1773183359, now seen corresponding path program 1 times [2022-12-14 03:17:24,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:17:24,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936750823] [2022-12-14 03:17:24,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:17:24,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:17:24,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:17:24,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:17:24,795 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:17:24,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936750823] [2022-12-14 03:17:24,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936750823] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:17:24,796 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:17:24,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-14 03:17:24,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640078229] [2022-12-14 03:17:24,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:17:24,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 03:17:24,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:17:24,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 03:17:24,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-12-14 03:17:24,797 INFO L87 Difference]: Start difference. First operand 645 states and 803 transitions. Second operand has 13 states, 13 states have (on average 7.461538461538462) internal successors, (97), 12 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:17:28,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:17:28,417 INFO L93 Difference]: Finished difference Result 1964 states and 2528 transitions. [2022-12-14 03:17:28,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-14 03:17:28,418 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.461538461538462) internal successors, (97), 12 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-12-14 03:17:28,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:17:28,419 INFO L225 Difference]: With dead ends: 1964 [2022-12-14 03:17:28,419 INFO L226 Difference]: Without dead ends: 1760 [2022-12-14 03:17:28,420 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2022-12-14 03:17:28,420 INFO L413 NwaCegarLoop]: 1109 mSDtfsCounter, 2876 mSDsluCounter, 5644 mSDsCounter, 0 mSdLazyCounter, 896 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2876 SdHoareTripleChecker+Valid, 6753 SdHoareTripleChecker+Invalid, 896 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 896 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-14 03:17:28,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2876 Valid, 6753 Invalid, 896 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 896 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-14 03:17:28,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1760 states. [2022-12-14 03:17:28,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1760 to 533. [2022-12-14 03:17:28,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 521 states have (on average 1.2610364683301343) internal successors, (657), 532 states have internal predecessors, (657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:17:28,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 657 transitions. [2022-12-14 03:17:28,781 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 657 transitions. Word has length 97 [2022-12-14 03:17:28,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:17:28,781 INFO L495 AbstractCegarLoop]: Abstraction has 533 states and 657 transitions. [2022-12-14 03:17:28,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.461538461538462) internal successors, (97), 12 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:17:28,781 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 657 transitions. [2022-12-14 03:17:28,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-12-14 03:17:28,782 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:17:28,782 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:17:28,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-12-14 03:17:28,782 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:17:28,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:17:28,782 INFO L85 PathProgramCache]: Analyzing trace with hash -133396310, now seen corresponding path program 1 times [2022-12-14 03:17:28,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:17:28,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345459675] [2022-12-14 03:17:28,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:17:28,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:17:28,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:17:29,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:17:29,218 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:17:29,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345459675] [2022-12-14 03:17:29,218 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345459675] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:17:29,218 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:17:29,218 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-14 03:17:29,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758083278] [2022-12-14 03:17:29,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:17:29,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 03:17:29,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:17:29,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 03:17:29,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-12-14 03:17:29,219 INFO L87 Difference]: Start difference. First operand 533 states and 657 transitions. Second operand has 13 states, 13 states have (on average 7.461538461538462) internal successors, (97), 12 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:17:31,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:17:31,558 INFO L93 Difference]: Finished difference Result 1083 states and 1382 transitions. [2022-12-14 03:17:31,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-14 03:17:31,558 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.461538461538462) internal successors, (97), 12 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-12-14 03:17:31,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:17:31,559 INFO L225 Difference]: With dead ends: 1083 [2022-12-14 03:17:31,559 INFO L226 Difference]: Without dead ends: 793 [2022-12-14 03:17:31,559 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=118, Invalid=388, Unknown=0, NotChecked=0, Total=506 [2022-12-14 03:17:31,560 INFO L413 NwaCegarLoop]: 529 mSDtfsCounter, 1341 mSDsluCounter, 3998 mSDsCounter, 0 mSdLazyCounter, 733 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1341 SdHoareTripleChecker+Valid, 4527 SdHoareTripleChecker+Invalid, 733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 733 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-14 03:17:31,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1341 Valid, 4527 Invalid, 733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 733 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-14 03:17:31,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 793 states. [2022-12-14 03:17:31,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 793 to 335. [2022-12-14 03:17:31,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 328 states have (on average 1.228658536585366) internal successors, (403), 334 states have internal predecessors, (403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:17:31,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 403 transitions. [2022-12-14 03:17:31,863 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 403 transitions. Word has length 97 [2022-12-14 03:17:31,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:17:31,864 INFO L495 AbstractCegarLoop]: Abstraction has 335 states and 403 transitions. [2022-12-14 03:17:31,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.461538461538462) internal successors, (97), 12 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:17:31,864 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 403 transitions. [2022-12-14 03:17:31,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-12-14 03:17:31,864 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:17:31,864 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:17:31,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-12-14 03:17:31,865 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:17:31,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:17:31,865 INFO L85 PathProgramCache]: Analyzing trace with hash -1851448540, now seen corresponding path program 1 times [2022-12-14 03:17:31,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:17:31,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232899143] [2022-12-14 03:17:31,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:17:31,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:17:31,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:17:32,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:17:32,013 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:17:32,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232899143] [2022-12-14 03:17:32,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232899143] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:17:32,013 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:17:32,013 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 03:17:32,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478365516] [2022-12-14 03:17:32,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:17:32,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 03:17:32,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:17:32,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 03:17:32,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 03:17:32,015 INFO L87 Difference]: Start difference. First operand 335 states and 403 transitions. Second operand has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:17:34,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:17:34,106 INFO L93 Difference]: Finished difference Result 820 states and 1036 transitions. [2022-12-14 03:17:34,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 03:17:34,106 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-12-14 03:17:34,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:17:34,107 INFO L225 Difference]: With dead ends: 820 [2022-12-14 03:17:34,107 INFO L226 Difference]: Without dead ends: 698 [2022-12-14 03:17:34,107 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-12-14 03:17:34,108 INFO L413 NwaCegarLoop]: 277 mSDtfsCounter, 1093 mSDsluCounter, 769 mSDsCounter, 0 mSdLazyCounter, 881 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1093 SdHoareTripleChecker+Valid, 1046 SdHoareTripleChecker+Invalid, 885 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 881 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-14 03:17:34,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1093 Valid, 1046 Invalid, 885 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 881 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-14 03:17:34,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 698 states. [2022-12-14 03:17:34,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 698 to 335. [2022-12-14 03:17:34,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 328 states have (on average 1.2225609756097562) internal successors, (401), 334 states have internal predecessors, (401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:17:34,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 401 transitions. [2022-12-14 03:17:34,414 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 401 transitions. Word has length 98 [2022-12-14 03:17:34,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:17:34,414 INFO L495 AbstractCegarLoop]: Abstraction has 335 states and 401 transitions. [2022-12-14 03:17:34,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:17:34,414 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 401 transitions. [2022-12-14 03:17:34,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-12-14 03:17:34,415 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:17:34,415 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:17:34,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-12-14 03:17:34,415 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:17:34,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:17:34,415 INFO L85 PathProgramCache]: Analyzing trace with hash -89068196, now seen corresponding path program 1 times [2022-12-14 03:17:34,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:17:34,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544781203] [2022-12-14 03:17:34,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:17:34,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:17:34,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:17:34,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:17:34,554 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:17:34,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544781203] [2022-12-14 03:17:34,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544781203] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:17:34,554 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:17:34,554 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 03:17:34,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187195545] [2022-12-14 03:17:34,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:17:34,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 03:17:34,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:17:34,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 03:17:34,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 03:17:34,555 INFO L87 Difference]: Start difference. First operand 335 states and 401 transitions. Second operand has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:17:35,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:17:35,688 INFO L93 Difference]: Finished difference Result 515 states and 622 transitions. [2022-12-14 03:17:35,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-14 03:17:35,688 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-12-14 03:17:35,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:17:35,689 INFO L225 Difference]: With dead ends: 515 [2022-12-14 03:17:35,689 INFO L226 Difference]: Without dead ends: 508 [2022-12-14 03:17:35,689 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2022-12-14 03:17:35,689 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 950 mSDsluCounter, 678 mSDsCounter, 0 mSdLazyCounter, 736 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 950 SdHoareTripleChecker+Valid, 908 SdHoareTripleChecker+Invalid, 739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 03:17:35,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [950 Valid, 908 Invalid, 739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 736 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 03:17:35,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2022-12-14 03:17:35,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 335. [2022-12-14 03:17:35,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 328 states have (on average 1.2195121951219512) internal successors, (400), 334 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:17:35,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 400 transitions. [2022-12-14 03:17:35,996 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 400 transitions. Word has length 98 [2022-12-14 03:17:35,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:17:35,996 INFO L495 AbstractCegarLoop]: Abstraction has 335 states and 400 transitions. [2022-12-14 03:17:35,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:17:35,996 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 400 transitions. [2022-12-14 03:17:35,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-12-14 03:17:35,997 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:17:35,997 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:17:35,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-12-14 03:17:35,997 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:17:35,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:17:35,997 INFO L85 PathProgramCache]: Analyzing trace with hash 1164287464, now seen corresponding path program 1 times [2022-12-14 03:17:35,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:17:35,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452822011] [2022-12-14 03:17:35,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:17:35,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:17:36,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:17:36,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:17:36,562 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:17:36,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452822011] [2022-12-14 03:17:36,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452822011] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:17:36,562 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:17:36,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-12-14 03:17:36,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675125181] [2022-12-14 03:17:36,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:17:36,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-14 03:17:36,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:17:36,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-14 03:17:36,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-12-14 03:17:36,563 INFO L87 Difference]: Start difference. First operand 335 states and 400 transitions. Second operand has 17 states, 17 states have (on average 5.764705882352941) internal successors, (98), 16 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:17:39,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:17:39,677 INFO L93 Difference]: Finished difference Result 1114 states and 1410 transitions. [2022-12-14 03:17:39,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-12-14 03:17:39,678 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.764705882352941) internal successors, (98), 16 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-12-14 03:17:39,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:17:39,678 INFO L225 Difference]: With dead ends: 1114 [2022-12-14 03:17:39,678 INFO L226 Difference]: Without dead ends: 1002 [2022-12-14 03:17:39,679 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=275, Invalid=985, Unknown=0, NotChecked=0, Total=1260 [2022-12-14 03:17:39,679 INFO L413 NwaCegarLoop]: 585 mSDtfsCounter, 2103 mSDsluCounter, 4047 mSDsCounter, 0 mSdLazyCounter, 1257 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2103 SdHoareTripleChecker+Valid, 4632 SdHoareTripleChecker+Invalid, 1259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-14 03:17:39,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2103 Valid, 4632 Invalid, 1259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1257 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-14 03:17:39,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1002 states. [2022-12-14 03:17:39,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1002 to 328. [2022-12-14 03:17:39,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 321 states have (on average 1.2118380062305296) internal successors, (389), 327 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:17:39,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 389 transitions. [2022-12-14 03:17:39,995 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 389 transitions. Word has length 98 [2022-12-14 03:17:39,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:17:39,996 INFO L495 AbstractCegarLoop]: Abstraction has 328 states and 389 transitions. [2022-12-14 03:17:39,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.764705882352941) internal successors, (98), 16 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:17:39,996 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 389 transitions. [2022-12-14 03:17:39,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-12-14 03:17:39,996 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:17:39,996 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:17:39,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-12-14 03:17:39,996 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:17:39,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:17:39,997 INFO L85 PathProgramCache]: Analyzing trace with hash -1551319760, now seen corresponding path program 1 times [2022-12-14 03:17:39,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:17:39,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265618817] [2022-12-14 03:17:39,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:17:39,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:17:40,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:17:40,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:17:40,275 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:17:40,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265618817] [2022-12-14 03:17:40,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265618817] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:17:40,275 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:17:40,275 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-14 03:17:40,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123138022] [2022-12-14 03:17:40,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:17:40,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-14 03:17:40,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:17:40,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-14 03:17:40,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-12-14 03:17:40,276 INFO L87 Difference]: Start difference. First operand 328 states and 389 transitions. Second operand has 10 states, 10 states have (on average 9.8) internal successors, (98), 9 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:17:41,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:17:41,512 INFO L93 Difference]: Finished difference Result 660 states and 815 transitions. [2022-12-14 03:17:41,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 03:17:41,513 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.8) internal successors, (98), 9 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-12-14 03:17:41,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:17:41,513 INFO L225 Difference]: With dead ends: 660 [2022-12-14 03:17:41,513 INFO L226 Difference]: Without dead ends: 500 [2022-12-14 03:17:41,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342 [2022-12-14 03:17:41,514 INFO L413 NwaCegarLoop]: 323 mSDtfsCounter, 1092 mSDsluCounter, 873 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1092 SdHoareTripleChecker+Valid, 1196 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 03:17:41,514 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1092 Valid, 1196 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 03:17:41,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2022-12-14 03:17:41,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 260. [2022-12-14 03:17:41,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 257 states have (on average 1.2023346303501945) internal successors, (309), 259 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:17:41,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 309 transitions. [2022-12-14 03:17:41,807 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 309 transitions. Word has length 98 [2022-12-14 03:17:41,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:17:41,807 INFO L495 AbstractCegarLoop]: Abstraction has 260 states and 309 transitions. [2022-12-14 03:17:41,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.8) internal successors, (98), 9 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:17:41,808 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 309 transitions. [2022-12-14 03:17:41,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-12-14 03:17:41,808 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:17:41,808 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:17:41,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-12-14 03:17:41,808 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:17:41,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:17:41,808 INFO L85 PathProgramCache]: Analyzing trace with hash -1289791201, now seen corresponding path program 1 times [2022-12-14 03:17:41,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:17:41,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318514800] [2022-12-14 03:17:41,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:17:41,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:17:41,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:17:43,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:17:43,343 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:17:43,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318514800] [2022-12-14 03:17:43,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318514800] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:17:43,343 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:17:43,343 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2022-12-14 03:17:43,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255298860] [2022-12-14 03:17:43,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:17:43,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-12-14 03:17:43,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:17:43,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-12-14 03:17:43,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=978, Unknown=0, NotChecked=0, Total=1056 [2022-12-14 03:17:43,344 INFO L87 Difference]: Start difference. First operand 260 states and 309 transitions. Second operand has 33 states, 33 states have (on average 3.0303030303030303) internal successors, (100), 32 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:17:47,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:17:47,434 INFO L93 Difference]: Finished difference Result 498 states and 617 transitions. [2022-12-14 03:17:47,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-12-14 03:17:47,435 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 3.0303030303030303) internal successors, (100), 32 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2022-12-14 03:17:47,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:17:47,435 INFO L225 Difference]: With dead ends: 498 [2022-12-14 03:17:47,435 INFO L226 Difference]: Without dead ends: 492 [2022-12-14 03:17:47,436 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 555 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=481, Invalid=3179, Unknown=0, NotChecked=0, Total=3660 [2022-12-14 03:17:47,436 INFO L413 NwaCegarLoop]: 188 mSDtfsCounter, 925 mSDsluCounter, 4307 mSDsCounter, 0 mSdLazyCounter, 2710 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 925 SdHoareTripleChecker+Valid, 4495 SdHoareTripleChecker+Invalid, 2710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-12-14 03:17:47,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [925 Valid, 4495 Invalid, 2710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2710 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-12-14 03:17:47,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2022-12-14 03:17:47,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 281. [2022-12-14 03:17:47,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 278 states have (on average 1.2050359712230216) internal successors, (335), 280 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:17:47,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 335 transitions. [2022-12-14 03:17:47,749 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 335 transitions. Word has length 100 [2022-12-14 03:17:47,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:17:47,749 INFO L495 AbstractCegarLoop]: Abstraction has 281 states and 335 transitions. [2022-12-14 03:17:47,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 3.0303030303030303) internal successors, (100), 32 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:17:47,749 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 335 transitions. [2022-12-14 03:17:47,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-12-14 03:17:47,750 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:17:47,750 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:17:47,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-12-14 03:17:47,750 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:17:47,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:17:47,750 INFO L85 PathProgramCache]: Analyzing trace with hash -641588265, now seen corresponding path program 1 times [2022-12-14 03:17:47,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:17:47,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883115229] [2022-12-14 03:17:47,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:17:47,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:17:47,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:17:48,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:17:48,979 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:17:48,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883115229] [2022-12-14 03:17:48,979 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883115229] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:17:48,979 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:17:48,979 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-12-14 03:17:48,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058150657] [2022-12-14 03:17:48,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:17:48,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-12-14 03:17:48,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:17:48,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-12-14 03:17:48,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=864, Unknown=0, NotChecked=0, Total=930 [2022-12-14 03:17:48,980 INFO L87 Difference]: Start difference. First operand 281 states and 335 transitions. Second operand has 31 states, 31 states have (on average 3.225806451612903) internal successors, (100), 31 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:17:52,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:17:52,094 INFO L93 Difference]: Finished difference Result 318 states and 373 transitions. [2022-12-14 03:17:52,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-12-14 03:17:52,095 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 3.225806451612903) internal successors, (100), 31 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2022-12-14 03:17:52,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:17:52,096 INFO L225 Difference]: With dead ends: 318 [2022-12-14 03:17:52,096 INFO L226 Difference]: Without dead ends: 310 [2022-12-14 03:17:52,096 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 441 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=435, Invalid=2871, Unknown=0, NotChecked=0, Total=3306 [2022-12-14 03:17:52,096 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 600 mSDsluCounter, 2808 mSDsCounter, 0 mSdLazyCounter, 2129 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 600 SdHoareTripleChecker+Valid, 2939 SdHoareTripleChecker+Invalid, 2130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-14 03:17:52,096 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [600 Valid, 2939 Invalid, 2130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2129 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-14 03:17:52,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2022-12-14 03:17:52,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 290. [2022-12-14 03:17:52,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 287 states have (on average 1.2055749128919862) internal successors, (346), 289 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:17:52,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 346 transitions. [2022-12-14 03:17:52,415 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 346 transitions. Word has length 100 [2022-12-14 03:17:52,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:17:52,415 INFO L495 AbstractCegarLoop]: Abstraction has 290 states and 346 transitions. [2022-12-14 03:17:52,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 3.225806451612903) internal successors, (100), 31 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:17:52,415 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 346 transitions. [2022-12-14 03:17:52,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-12-14 03:17:52,416 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:17:52,416 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:17:52,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-12-14 03:17:52,416 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:17:52,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:17:52,416 INFO L85 PathProgramCache]: Analyzing trace with hash 1441605077, now seen corresponding path program 1 times [2022-12-14 03:17:52,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:17:52,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105555750] [2022-12-14 03:17:52,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:17:52,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:17:52,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:17:52,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:17:52,735 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:17:52,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105555750] [2022-12-14 03:17:52,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105555750] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:17:52,736 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:17:52,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-14 03:17:52,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557282324] [2022-12-14 03:17:52,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:17:52,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 03:17:52,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:17:52,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 03:17:52,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-12-14 03:17:52,737 INFO L87 Difference]: Start difference. First operand 290 states and 346 transitions. Second operand has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 11 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:17:54,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:17:54,502 INFO L93 Difference]: Finished difference Result 634 states and 792 transitions. [2022-12-14 03:17:54,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 03:17:54,503 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 11 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-12-14 03:17:54,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:17:54,504 INFO L225 Difference]: With dead ends: 634 [2022-12-14 03:17:54,504 INFO L226 Difference]: Without dead ends: 628 [2022-12-14 03:17:54,504 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-12-14 03:17:54,504 INFO L413 NwaCegarLoop]: 354 mSDtfsCounter, 831 mSDsluCounter, 1734 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 831 SdHoareTripleChecker+Valid, 2088 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-14 03:17:54,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [831 Valid, 2088 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 531 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-14 03:17:54,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 628 states. [2022-12-14 03:17:54,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 628 to 273. [2022-12-14 03:17:54,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 271 states have (on average 1.1992619926199262) internal successors, (325), 272 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:17:54,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 325 transitions. [2022-12-14 03:17:54,820 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 325 transitions. Word has length 101 [2022-12-14 03:17:54,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:17:54,820 INFO L495 AbstractCegarLoop]: Abstraction has 273 states and 325 transitions. [2022-12-14 03:17:54,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 11 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:17:54,820 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 325 transitions. [2022-12-14 03:17:54,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-12-14 03:17:54,820 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:17:54,820 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:17:54,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-12-14 03:17:54,821 INFO L420 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:17:54,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:17:54,821 INFO L85 PathProgramCache]: Analyzing trace with hash -1305938980, now seen corresponding path program 1 times [2022-12-14 03:17:54,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:17:54,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975799027] [2022-12-14 03:17:54,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:17:54,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:17:54,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:17:55,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:17:55,404 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:17:55,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975799027] [2022-12-14 03:17:55,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975799027] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:17:55,405 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:17:55,405 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-12-14 03:17:55,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491716934] [2022-12-14 03:17:55,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:17:55,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-14 03:17:55,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:17:55,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-14 03:17:55,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-12-14 03:17:55,406 INFO L87 Difference]: Start difference. First operand 273 states and 325 transitions. Second operand has 17 states, 17 states have (on average 5.9411764705882355) internal successors, (101), 16 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:17:57,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:17:57,488 INFO L93 Difference]: Finished difference Result 583 states and 716 transitions. [2022-12-14 03:17:57,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-14 03:17:57,489 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.9411764705882355) internal successors, (101), 16 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-12-14 03:17:57,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:17:57,490 INFO L225 Difference]: With dead ends: 583 [2022-12-14 03:17:57,490 INFO L226 Difference]: Without dead ends: 564 [2022-12-14 03:17:57,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=263, Invalid=927, Unknown=0, NotChecked=0, Total=1190 [2022-12-14 03:17:57,490 INFO L413 NwaCegarLoop]: 315 mSDtfsCounter, 1082 mSDsluCounter, 2337 mSDsCounter, 0 mSdLazyCounter, 832 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1082 SdHoareTripleChecker+Valid, 2652 SdHoareTripleChecker+Invalid, 833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 832 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-14 03:17:57,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1082 Valid, 2652 Invalid, 833 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 832 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-14 03:17:57,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2022-12-14 03:17:57,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 254. [2022-12-14 03:17:57,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 252 states have (on average 1.1944444444444444) internal successors, (301), 253 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:17:57,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 301 transitions. [2022-12-14 03:17:57,797 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 301 transitions. Word has length 101 [2022-12-14 03:17:57,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:17:57,797 INFO L495 AbstractCegarLoop]: Abstraction has 254 states and 301 transitions. [2022-12-14 03:17:57,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.9411764705882355) internal successors, (101), 16 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:17:57,797 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 301 transitions. [2022-12-14 03:17:57,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-12-14 03:17:57,798 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:17:57,798 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:17:57,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-12-14 03:17:57,798 INFO L420 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:17:57,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:17:57,798 INFO L85 PathProgramCache]: Analyzing trace with hash 1215233727, now seen corresponding path program 1 times [2022-12-14 03:17:57,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:17:57,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721140420] [2022-12-14 03:17:57,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:17:57,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:17:57,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:17:58,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:17:58,255 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:17:58,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721140420] [2022-12-14 03:17:58,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721140420] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:17:58,256 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:17:58,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-12-14 03:17:58,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918989919] [2022-12-14 03:17:58,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:17:58,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-14 03:17:58,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:17:58,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-14 03:17:58,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2022-12-14 03:17:58,257 INFO L87 Difference]: Start difference. First operand 254 states and 301 transitions. Second operand has 16 states, 16 states have (on average 6.3125) internal successors, (101), 15 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:18:00,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:18:00,160 INFO L93 Difference]: Finished difference Result 535 states and 662 transitions. [2022-12-14 03:18:00,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-14 03:18:00,161 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 6.3125) internal successors, (101), 15 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-12-14 03:18:00,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:18:00,161 INFO L225 Difference]: With dead ends: 535 [2022-12-14 03:18:00,161 INFO L226 Difference]: Without dead ends: 514 [2022-12-14 03:18:00,161 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=249, Invalid=873, Unknown=0, NotChecked=0, Total=1122 [2022-12-14 03:18:00,162 INFO L413 NwaCegarLoop]: 280 mSDtfsCounter, 938 mSDsluCounter, 1889 mSDsCounter, 0 mSdLazyCounter, 739 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 938 SdHoareTripleChecker+Valid, 2169 SdHoareTripleChecker+Invalid, 739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 739 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-14 03:18:00,162 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [938 Valid, 2169 Invalid, 739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 739 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-14 03:18:00,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2022-12-14 03:18:00,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 236. [2022-12-14 03:18:00,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 235 states have (on average 1.195744680851064) internal successors, (281), 235 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:18:00,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 281 transitions. [2022-12-14 03:18:00,467 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 281 transitions. Word has length 101 [2022-12-14 03:18:00,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:18:00,467 INFO L495 AbstractCegarLoop]: Abstraction has 236 states and 281 transitions. [2022-12-14 03:18:00,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 6.3125) internal successors, (101), 15 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:18:00,467 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 281 transitions. [2022-12-14 03:18:00,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-12-14 03:18:00,468 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:18:00,468 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:18:00,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-12-14 03:18:00,468 INFO L420 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:18:00,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:18:00,468 INFO L85 PathProgramCache]: Analyzing trace with hash -2122808020, now seen corresponding path program 1 times [2022-12-14 03:18:00,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:18:00,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249499073] [2022-12-14 03:18:00,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:18:00,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:18:00,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:18:00,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:18:00,547 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:18:00,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249499073] [2022-12-14 03:18:00,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249499073] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:18:00,547 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:18:00,547 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 03:18:00,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250836865] [2022-12-14 03:18:00,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:18:00,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 03:18:00,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:18:00,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 03:18:00,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 03:18:00,548 INFO L87 Difference]: Start difference. First operand 236 states and 281 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:18:01,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:18:01,040 INFO L93 Difference]: Finished difference Result 336 states and 415 transitions. [2022-12-14 03:18:01,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 03:18:01,041 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 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 118 [2022-12-14 03:18:01,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:18:01,041 INFO L225 Difference]: With dead ends: 336 [2022-12-14 03:18:01,041 INFO L226 Difference]: Without dead ends: 289 [2022-12-14 03:18:01,042 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 03:18:01,042 INFO L413 NwaCegarLoop]: 216 mSDtfsCounter, 73 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 03:18:01,042 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 336 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 03:18:01,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2022-12-14 03:18:01,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 279. [2022-12-14 03:18:01,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 278 states have (on average 1.2158273381294964) internal successors, (338), 278 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:18:01,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 338 transitions. [2022-12-14 03:18:01,465 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 338 transitions. Word has length 118 [2022-12-14 03:18:01,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:18:01,465 INFO L495 AbstractCegarLoop]: Abstraction has 279 states and 338 transitions. [2022-12-14 03:18:01,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:18:01,465 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 338 transitions. [2022-12-14 03:18:01,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-12-14 03:18:01,466 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:18:01,466 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:18:01,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-12-14 03:18:01,466 INFO L420 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:18:01,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:18:01,466 INFO L85 PathProgramCache]: Analyzing trace with hash -1156772017, now seen corresponding path program 1 times [2022-12-14 03:18:01,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:18:01,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809706779] [2022-12-14 03:18:01,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:18:01,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:18:01,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:18:01,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:18:01,542 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:18:01,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809706779] [2022-12-14 03:18:01,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809706779] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:18:01,543 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:18:01,543 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 03:18:01,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491413258] [2022-12-14 03:18:01,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:18:01,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 03:18:01,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:18:01,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 03:18:01,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 03:18:01,544 INFO L87 Difference]: Start difference. First operand 279 states and 338 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:18:02,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:18:02,386 INFO L93 Difference]: Finished difference Result 545 states and 696 transitions. [2022-12-14 03:18:02,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 03:18:02,387 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2022-12-14 03:18:02,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:18:02,387 INFO L225 Difference]: With dead ends: 545 [2022-12-14 03:18:02,387 INFO L226 Difference]: Without dead ends: 412 [2022-12-14 03:18:02,387 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 03:18:02,388 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 66 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 03:18:02,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 336 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 03:18:02,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2022-12-14 03:18:03,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 398. [2022-12-14 03:18:03,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 397 states have (on average 1.2544080604534005) internal successors, (498), 397 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:18:03,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 498 transitions. [2022-12-14 03:18:03,149 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 498 transitions. Word has length 121 [2022-12-14 03:18:03,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:18:03,149 INFO L495 AbstractCegarLoop]: Abstraction has 398 states and 498 transitions. [2022-12-14 03:18:03,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:18:03,149 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 498 transitions. [2022-12-14 03:18:03,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-12-14 03:18:03,149 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:18:03,149 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:18:03,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-12-14 03:18:03,150 INFO L420 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:18:03,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:18:03,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1604874638, now seen corresponding path program 1 times [2022-12-14 03:18:03,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:18:03,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578287921] [2022-12-14 03:18:03,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:18:03,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:18:03,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:18:03,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:18:03,228 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:18:03,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578287921] [2022-12-14 03:18:03,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578287921] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:18:03,228 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:18:03,228 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 03:18:03,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341645896] [2022-12-14 03:18:03,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:18:03,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 03:18:03,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:18:03,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 03:18:03,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 03:18:03,229 INFO L87 Difference]: Start difference. First operand 398 states and 498 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:18:04,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:18:04,756 INFO L93 Difference]: Finished difference Result 902 states and 1176 transitions. [2022-12-14 03:18:04,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 03:18:04,757 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 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 124 [2022-12-14 03:18:04,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:18:04,758 INFO L225 Difference]: With dead ends: 902 [2022-12-14 03:18:04,758 INFO L226 Difference]: Without dead ends: 650 [2022-12-14 03:18:04,758 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 03:18:04,758 INFO L413 NwaCegarLoop]: 202 mSDtfsCounter, 59 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 03:18:04,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 336 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 03:18:04,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 650 states. [2022-12-14 03:18:06,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 650 to 624. [2022-12-14 03:18:06,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 624 states, 623 states have (on average 1.2841091492776886) internal successors, (800), 623 states have internal predecessors, (800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:18:06,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 624 states to 624 states and 800 transitions. [2022-12-14 03:18:06,182 INFO L78 Accepts]: Start accepts. Automaton has 624 states and 800 transitions. Word has length 124 [2022-12-14 03:18:06,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:18:06,182 INFO L495 AbstractCegarLoop]: Abstraction has 624 states and 800 transitions. [2022-12-14 03:18:06,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:18:06,182 INFO L276 IsEmpty]: Start isEmpty. Operand 624 states and 800 transitions. [2022-12-14 03:18:06,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-12-14 03:18:06,183 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:18:06,183 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:18:06,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-12-14 03:18:06,183 INFO L420 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:18:06,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:18:06,183 INFO L85 PathProgramCache]: Analyzing trace with hash 629032958, now seen corresponding path program 1 times [2022-12-14 03:18:06,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:18:06,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355632830] [2022-12-14 03:18:06,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:18:06,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:18:06,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:18:06,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:18:06,260 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:18:06,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355632830] [2022-12-14 03:18:06,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355632830] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:18:06,261 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:18:06,261 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 03:18:06,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016786011] [2022-12-14 03:18:06,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:18:06,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 03:18:06,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:18:06,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 03:18:06,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 03:18:06,262 INFO L87 Difference]: Start difference. First operand 624 states and 800 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:18:09,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:18:09,108 INFO L93 Difference]: Finished difference Result 1580 states and 2082 transitions. [2022-12-14 03:18:09,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 03:18:09,109 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 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 127 [2022-12-14 03:18:09,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:18:09,110 INFO L225 Difference]: With dead ends: 1580 [2022-12-14 03:18:09,110 INFO L226 Difference]: Without dead ends: 1102 [2022-12-14 03:18:09,111 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 03:18:09,111 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 52 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 03:18:09,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 336 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 03:18:09,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1102 states. [2022-12-14 03:18:11,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1102 to 1052. [2022-12-14 03:18:11,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1052 states, 1051 states have (on average 1.301617507136061) internal successors, (1368), 1051 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:18:11,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1052 states to 1052 states and 1368 transitions. [2022-12-14 03:18:11,832 INFO L78 Accepts]: Start accepts. Automaton has 1052 states and 1368 transitions. Word has length 127 [2022-12-14 03:18:11,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:18:11,832 INFO L495 AbstractCegarLoop]: Abstraction has 1052 states and 1368 transitions. [2022-12-14 03:18:11,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:18:11,832 INFO L276 IsEmpty]: Start isEmpty. Operand 1052 states and 1368 transitions. [2022-12-14 03:18:11,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-12-14 03:18:11,833 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:18:11,833 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:18:11,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-12-14 03:18:11,833 INFO L420 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:18:11,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:18:11,833 INFO L85 PathProgramCache]: Analyzing trace with hash 1141414910, now seen corresponding path program 1 times [2022-12-14 03:18:11,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:18:11,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967837890] [2022-12-14 03:18:11,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:18:11,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:18:11,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:18:11,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:18:11,916 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:18:11,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967837890] [2022-12-14 03:18:11,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967837890] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:18:11,916 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:18:11,916 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 03:18:11,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476533272] [2022-12-14 03:18:11,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:18:11,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 03:18:11,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:18:11,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 03:18:11,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 03:18:11,917 INFO L87 Difference]: Start difference. First operand 1052 states and 1368 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:18:17,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:18:17,259 INFO L93 Difference]: Finished difference Result 2864 states and 3786 transitions. [2022-12-14 03:18:17,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 03:18:17,260 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 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 130 [2022-12-14 03:18:17,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:18:17,261 INFO L225 Difference]: With dead ends: 2864 [2022-12-14 03:18:17,261 INFO L226 Difference]: Without dead ends: 1958 [2022-12-14 03:18:17,262 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 03:18:17,262 INFO L413 NwaCegarLoop]: 188 mSDtfsCounter, 45 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 03:18:17,262 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 336 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 03:18:17,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1958 states. [2022-12-14 03:18:22,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1958 to 1860. [2022-12-14 03:18:22,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1860 states, 1859 states have (on average 1.3082302313071543) internal successors, (2432), 1859 states have internal predecessors, (2432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:18:22,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1860 states to 1860 states and 2432 transitions. [2022-12-14 03:18:22,296 INFO L78 Accepts]: Start accepts. Automaton has 1860 states and 2432 transitions. Word has length 130 [2022-12-14 03:18:22,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:18:22,296 INFO L495 AbstractCegarLoop]: Abstraction has 1860 states and 2432 transitions. [2022-12-14 03:18:22,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:18:22,297 INFO L276 IsEmpty]: Start isEmpty. Operand 1860 states and 2432 transitions. [2022-12-14 03:18:22,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-12-14 03:18:22,297 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:18:22,297 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:18:22,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-12-14 03:18:22,297 INFO L420 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:18:22,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:18:22,298 INFO L85 PathProgramCache]: Analyzing trace with hash -1183996359, now seen corresponding path program 1 times [2022-12-14 03:18:22,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:18:22,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253856662] [2022-12-14 03:18:22,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:18:22,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:18:22,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:18:22,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:18:22,377 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:18:22,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253856662] [2022-12-14 03:18:22,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253856662] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:18:22,377 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:18:22,377 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 03:18:22,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8713203] [2022-12-14 03:18:22,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:18:22,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 03:18:22,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:18:22,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 03:18:22,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 03:18:22,378 INFO L87 Difference]: Start difference. First operand 1860 states and 2432 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:18:32,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:18:32,432 INFO L93 Difference]: Finished difference Result 5288 states and 6978 transitions. [2022-12-14 03:18:32,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 03:18:32,433 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 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 133 [2022-12-14 03:18:32,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:18:32,436 INFO L225 Difference]: With dead ends: 5288 [2022-12-14 03:18:32,436 INFO L226 Difference]: Without dead ends: 3574 [2022-12-14 03:18:32,438 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 03:18:32,438 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 35 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 03:18:32,438 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 336 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 03:18:32,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3574 states. [2022-12-14 03:18:42,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3574 to 3380. [2022-12-14 03:18:42,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3380 states, 3379 states have (on average 1.3068955312222552) internal successors, (4416), 3379 states have internal predecessors, (4416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:18:42,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3380 states to 3380 states and 4416 transitions. [2022-12-14 03:18:42,161 INFO L78 Accepts]: Start accepts. Automaton has 3380 states and 4416 transitions. Word has length 133 [2022-12-14 03:18:42,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:18:42,161 INFO L495 AbstractCegarLoop]: Abstraction has 3380 states and 4416 transitions. [2022-12-14 03:18:42,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:18:42,161 INFO L276 IsEmpty]: Start isEmpty. Operand 3380 states and 4416 transitions. [2022-12-14 03:18:42,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-12-14 03:18:42,162 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:18:42,162 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:18:42,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2022-12-14 03:18:42,162 INFO L420 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:18:42,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:18:42,162 INFO L85 PathProgramCache]: Analyzing trace with hash -1161915133, now seen corresponding path program 1 times [2022-12-14 03:18:42,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:18:42,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515808876] [2022-12-14 03:18:42,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:18:42,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:18:42,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:18:42,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:18:42,266 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:18:42,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515808876] [2022-12-14 03:18:42,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515808876] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:18:42,266 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:18:42,266 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-14 03:18:42,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781968909] [2022-12-14 03:18:42,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:18:42,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 03:18:42,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:18:42,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 03:18:42,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-14 03:18:42,267 INFO L87 Difference]: Start difference. First operand 3380 states and 4416 transitions. Second operand has 8 states, 8 states have (on average 17.0) internal successors, (136), 8 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:19:13,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:19:13,614 INFO L93 Difference]: Finished difference Result 13705 states and 18065 transitions. [2022-12-14 03:19:13,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-14 03:19:13,615 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.0) internal successors, (136), 8 states have internal predecessors, (136), 0 states have call successors, (0), 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 136 [2022-12-14 03:19:13,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:19:13,624 INFO L225 Difference]: With dead ends: 13705 [2022-12-14 03:19:13,624 INFO L226 Difference]: Without dead ends: 10471 [2022-12-14 03:19:13,627 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2022-12-14 03:19:13,627 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 1146 mSDsluCounter, 1929 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1146 SdHoareTripleChecker+Valid, 2091 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 03:19:13,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1146 Valid, 2091 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 03:19:13,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10471 states. [2022-12-14 03:19:27,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10471 to 4718. [2022-12-14 03:19:27,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4718 states, 4717 states have (on average 1.30125079499682) internal successors, (6138), 4717 states have internal predecessors, (6138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:19:27,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4718 states to 4718 states and 6138 transitions. [2022-12-14 03:19:27,702 INFO L78 Accepts]: Start accepts. Automaton has 4718 states and 6138 transitions. Word has length 136 [2022-12-14 03:19:27,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:19:27,702 INFO L495 AbstractCegarLoop]: Abstraction has 4718 states and 6138 transitions. [2022-12-14 03:19:27,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.0) internal successors, (136), 8 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:19:27,702 INFO L276 IsEmpty]: Start isEmpty. Operand 4718 states and 6138 transitions. [2022-12-14 03:19:27,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-12-14 03:19:27,703 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:19:27,703 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:19:27,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2022-12-14 03:19:27,703 INFO L420 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:19:27,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:19:27,703 INFO L85 PathProgramCache]: Analyzing trace with hash -29882985, now seen corresponding path program 1 times [2022-12-14 03:19:27,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:19:27,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293611816] [2022-12-14 03:19:27,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:19:27,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:19:27,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:19:27,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:19:27,753 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:19:27,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293611816] [2022-12-14 03:19:27,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293611816] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:19:27,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:19:27,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 03:19:27,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693219983] [2022-12-14 03:19:27,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:19:27,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 03:19:27,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:19:27,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 03:19:27,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 03:19:27,755 INFO L87 Difference]: Start difference. First operand 4718 states and 6138 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:19:45,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:19:45,640 INFO L93 Difference]: Finished difference Result 10476 states and 13686 transitions. [2022-12-14 03:19:45,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 03:19:45,641 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 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 138 [2022-12-14 03:19:45,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:19:45,646 INFO L225 Difference]: With dead ends: 10476 [2022-12-14 03:19:45,646 INFO L226 Difference]: Without dead ends: 5904 [2022-12-14 03:19:45,649 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 03:19:45,649 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 92 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 03:19:45,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 260 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 03:19:45,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5904 states. [2022-12-14 03:20:03,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5904 to 5902. [2022-12-14 03:20:03,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5902 states, 5901 states have (on average 1.294695814268768) internal successors, (7640), 5901 states have internal predecessors, (7640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:20:03,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5902 states to 5902 states and 7640 transitions. [2022-12-14 03:20:03,377 INFO L78 Accepts]: Start accepts. Automaton has 5902 states and 7640 transitions. Word has length 138 [2022-12-14 03:20:03,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:20:03,377 INFO L495 AbstractCegarLoop]: Abstraction has 5902 states and 7640 transitions. [2022-12-14 03:20:03,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:20:03,377 INFO L276 IsEmpty]: Start isEmpty. Operand 5902 states and 7640 transitions. [2022-12-14 03:20:03,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-12-14 03:20:03,377 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:20:03,377 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:20:03,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-12-14 03:20:03,378 INFO L420 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:20:03,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:20:03,378 INFO L85 PathProgramCache]: Analyzing trace with hash 1875011963, now seen corresponding path program 1 times [2022-12-14 03:20:03,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:20:03,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574592708] [2022-12-14 03:20:03,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:20:03,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:20:03,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:20:03,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:20:03,427 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:20:03,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574592708] [2022-12-14 03:20:03,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574592708] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:20:03,427 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:20:03,427 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 03:20:03,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707242440] [2022-12-14 03:20:03,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:20:03,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 03:20:03,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:20:03,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 03:20:03,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 03:20:03,428 INFO L87 Difference]: Start difference. First operand 5902 states and 7640 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:20:21,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:20:21,241 INFO L93 Difference]: Finished difference Result 11660 states and 15122 transitions. [2022-12-14 03:20:21,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 03:20:21,241 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 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 138 [2022-12-14 03:20:21,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:20:21,246 INFO L225 Difference]: With dead ends: 11660 [2022-12-14 03:20:21,246 INFO L226 Difference]: Without dead ends: 5904 [2022-12-14 03:20:21,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 03:20:21,250 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 35 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 03:20:21,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 271 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 03:20:21,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5904 states. [2022-12-14 03:20:38,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5904 to 5902. [2022-12-14 03:20:38,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5902 states, 5901 states have (on average 1.2943568886629384) internal successors, (7638), 5901 states have internal predecessors, (7638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:20:38,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5902 states to 5902 states and 7638 transitions. [2022-12-14 03:20:38,862 INFO L78 Accepts]: Start accepts. Automaton has 5902 states and 7638 transitions. Word has length 138 [2022-12-14 03:20:38,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:20:38,862 INFO L495 AbstractCegarLoop]: Abstraction has 5902 states and 7638 transitions. [2022-12-14 03:20:38,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:20:38,862 INFO L276 IsEmpty]: Start isEmpty. Operand 5902 states and 7638 transitions. [2022-12-14 03:20:38,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-12-14 03:20:38,863 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:20:38,863 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:20:38,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-12-14 03:20:38,863 INFO L420 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:20:38,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:20:38,863 INFO L85 PathProgramCache]: Analyzing trace with hash 1365046, now seen corresponding path program 1 times [2022-12-14 03:20:38,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:20:38,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236922427] [2022-12-14 03:20:38,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:20:38,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:20:38,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:20:39,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:20:39,045 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:20:39,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236922427] [2022-12-14 03:20:39,045 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236922427] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:20:39,045 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:20:39,045 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 03:20:39,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190831751] [2022-12-14 03:20:39,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:20:39,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 03:20:39,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:20:39,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 03:20:39,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-14 03:20:39,047 INFO L87 Difference]: Start difference. First operand 5902 states and 7638 transitions. Second operand has 7 states, 7 states have (on average 19.857142857142858) internal successors, (139), 7 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:21:05,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:21:05,255 INFO L93 Difference]: Finished difference Result 8456 states and 10779 transitions. [2022-12-14 03:21:05,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 03:21:05,256 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.857142857142858) internal successors, (139), 7 states have internal predecessors, (139), 0 states have call successors, (0), 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 139 [2022-12-14 03:21:05,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:21:05,262 INFO L225 Difference]: With dead ends: 8456 [2022-12-14 03:21:05,262 INFO L226 Difference]: Without dead ends: 8454 [2022-12-14 03:21:05,263 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2022-12-14 03:21:05,264 INFO L413 NwaCegarLoop]: 253 mSDtfsCounter, 379 mSDsluCounter, 839 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 379 SdHoareTripleChecker+Valid, 1092 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 03:21:05,264 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [379 Valid, 1092 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 03:21:05,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8454 states. [2022-12-14 03:21:23,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8454 to 5902. [2022-12-14 03:21:23,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5902 states, 5901 states have (on average 1.2780884595831215) internal successors, (7542), 5901 states have internal predecessors, (7542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:21:23,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5902 states to 5902 states and 7542 transitions. [2022-12-14 03:21:23,152 INFO L78 Accepts]: Start accepts. Automaton has 5902 states and 7542 transitions. Word has length 139 [2022-12-14 03:21:23,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:21:23,153 INFO L495 AbstractCegarLoop]: Abstraction has 5902 states and 7542 transitions. [2022-12-14 03:21:23,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.857142857142858) internal successors, (139), 7 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:21:23,153 INFO L276 IsEmpty]: Start isEmpty. Operand 5902 states and 7542 transitions. [2022-12-14 03:21:23,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-12-14 03:21:23,154 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:21:23,154 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:21:23,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-12-14 03:21:23,154 INFO L420 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:21:23,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:21:23,154 INFO L85 PathProgramCache]: Analyzing trace with hash -2115277045, now seen corresponding path program 1 times [2022-12-14 03:21:23,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:21:23,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559581922] [2022-12-14 03:21:23,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:21:23,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:21:23,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:21:24,261 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 03:21:24,261 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:21:24,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559581922] [2022-12-14 03:21:24,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559581922] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:21:24,261 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:21:24,261 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-12-14 03:21:24,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680720793] [2022-12-14 03:21:24,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:21:24,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-14 03:21:24,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:21:24,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-14 03:21:24,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-12-14 03:21:24,262 INFO L87 Difference]: Start difference. First operand 5902 states and 7542 transitions. Second operand has 26 states, 26 states have (on average 5.653846153846154) internal successors, (147), 25 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:23:04,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:23:04,486 INFO L93 Difference]: Finished difference Result 33134 states and 42350 transitions. [2022-12-14 03:23:04,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2022-12-14 03:23:04,487 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.653846153846154) internal successors, (147), 25 states have internal predecessors, (147), 0 states have call successors, (0), 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 157 [2022-12-14 03:23:04,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:23:04,517 INFO L225 Difference]: With dead ends: 33134 [2022-12-14 03:23:04,517 INFO L226 Difference]: Without dead ends: 27364 [2022-12-14 03:23:04,528 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5254 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=2343, Invalid=13407, Unknown=0, NotChecked=0, Total=15750 [2022-12-14 03:23:04,528 INFO L413 NwaCegarLoop]: 559 mSDtfsCounter, 3199 mSDsluCounter, 8342 mSDsCounter, 0 mSdLazyCounter, 14191 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3199 SdHoareTripleChecker+Valid, 8901 SdHoareTripleChecker+Invalid, 14273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 14191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-12-14 03:23:04,528 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3199 Valid, 8901 Invalid, 14273 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [82 Valid, 14191 Invalid, 0 Unknown, 0 Unchecked, 7.7s Time] [2022-12-14 03:23:04,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27364 states. [2022-12-14 03:23:23,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27364 to 5940. [2022-12-14 03:23:23,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5940 states, 5939 states have (on average 1.2773194140427682) internal successors, (7586), 5939 states have internal predecessors, (7586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:23:23,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5940 states to 5940 states and 7586 transitions. [2022-12-14 03:23:23,815 INFO L78 Accepts]: Start accepts. Automaton has 5940 states and 7586 transitions. Word has length 157 [2022-12-14 03:23:23,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:23:23,815 INFO L495 AbstractCegarLoop]: Abstraction has 5940 states and 7586 transitions. [2022-12-14 03:23:23,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.653846153846154) internal successors, (147), 25 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:23:23,816 INFO L276 IsEmpty]: Start isEmpty. Operand 5940 states and 7586 transitions. [2022-12-14 03:23:23,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-12-14 03:23:23,816 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:23:23,817 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:23:23,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2022-12-14 03:23:23,817 INFO L420 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:23:23,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:23:23,817 INFO L85 PathProgramCache]: Analyzing trace with hash -1028025579, now seen corresponding path program 1 times [2022-12-14 03:23:23,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:23:23,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734630798] [2022-12-14 03:23:23,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:23:23,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:23:23,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:23:24,010 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 03:23:24,010 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:23:24,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734630798] [2022-12-14 03:23:24,011 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734630798] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:23:24,011 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:23:24,011 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 03:23:24,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136327219] [2022-12-14 03:23:24,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:23:24,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 03:23:24,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:23:24,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 03:23:24,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 03:23:24,012 INFO L87 Difference]: Start difference. First operand 5940 states and 7586 transitions. Second operand has 8 states, 8 states have (on average 18.5) internal successors, (148), 7 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:23:54,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:23:54,071 INFO L93 Difference]: Finished difference Result 14952 states and 19121 transitions. [2022-12-14 03:23:54,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-14 03:23:54,072 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 18.5) internal successors, (148), 7 states have internal predecessors, (148), 0 states have call successors, (0), 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 158 [2022-12-14 03:23:54,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:23:54,080 INFO L225 Difference]: With dead ends: 14952 [2022-12-14 03:23:54,080 INFO L226 Difference]: Without dead ends: 9182 [2022-12-14 03:23:54,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2022-12-14 03:23:54,084 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 438 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 411 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 03:23:54,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [438 Valid, 442 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 411 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 03:23:54,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9182 states. [2022-12-14 03:24:13,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9182 to 5902. [2022-12-14 03:24:13,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5902 states, 5901 states have (on average 1.277749533977292) internal successors, (7540), 5901 states have internal predecessors, (7540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:24:13,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5902 states to 5902 states and 7540 transitions. [2022-12-14 03:24:13,799 INFO L78 Accepts]: Start accepts. Automaton has 5902 states and 7540 transitions. Word has length 158 [2022-12-14 03:24:13,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:24:13,799 INFO L495 AbstractCegarLoop]: Abstraction has 5902 states and 7540 transitions. [2022-12-14 03:24:13,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 18.5) internal successors, (148), 7 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:24:13,799 INFO L276 IsEmpty]: Start isEmpty. Operand 5902 states and 7540 transitions. [2022-12-14 03:24:13,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-12-14 03:24:13,800 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:24:13,800 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:24:13,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2022-12-14 03:24:13,800 INFO L420 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:24:13,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:24:13,800 INFO L85 PathProgramCache]: Analyzing trace with hash 519260262, now seen corresponding path program 1 times [2022-12-14 03:24:13,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:24:13,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897202979] [2022-12-14 03:24:13,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:24:13,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:24:13,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:24:15,792 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 03:24:15,792 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:24:15,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897202979] [2022-12-14 03:24:15,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897202979] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:24:15,793 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:24:15,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-12-14 03:24:15,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714001007] [2022-12-14 03:24:15,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:24:15,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-12-14 03:24:15,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:24:15,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-12-14 03:24:15,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=854, Unknown=0, NotChecked=0, Total=930 [2022-12-14 03:24:15,795 INFO L87 Difference]: Start difference. First operand 5902 states and 7540 transitions. Second operand has 31 states, 31 states have (on average 4.806451612903226) internal successors, (149), 31 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:24:58,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:24:58,153 INFO L93 Difference]: Finished difference Result 17465 states and 22361 transitions. [2022-12-14 03:24:58,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-12-14 03:24:58,154 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.806451612903226) internal successors, (149), 31 states have internal predecessors, (149), 0 states have call successors, (0), 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 159 [2022-12-14 03:24:58,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:24:58,164 INFO L225 Difference]: With dead ends: 17465 [2022-12-14 03:24:58,164 INFO L226 Difference]: Without dead ends: 11700 [2022-12-14 03:24:58,169 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 515 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=445, Invalid=2861, Unknown=0, NotChecked=0, Total=3306 [2022-12-14 03:24:58,169 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 797 mSDsluCounter, 2242 mSDsCounter, 0 mSdLazyCounter, 1891 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 797 SdHoareTripleChecker+Valid, 2350 SdHoareTripleChecker+Invalid, 1891 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1891 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-14 03:24:58,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [797 Valid, 2350 Invalid, 1891 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1891 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-14 03:24:58,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11700 states. [2022-12-14 03:25:17,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11700 to 5922. [2022-12-14 03:25:17,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5922 states, 5921 states have (on average 1.2773180206046275) internal successors, (7563), 5921 states have internal predecessors, (7563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:25:17,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5922 states to 5922 states and 7563 transitions. [2022-12-14 03:25:17,730 INFO L78 Accepts]: Start accepts. Automaton has 5922 states and 7563 transitions. Word has length 159 [2022-12-14 03:25:17,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:25:17,731 INFO L495 AbstractCegarLoop]: Abstraction has 5922 states and 7563 transitions. [2022-12-14 03:25:17,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.806451612903226) internal successors, (149), 31 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:25:17,731 INFO L276 IsEmpty]: Start isEmpty. Operand 5922 states and 7563 transitions. [2022-12-14 03:25:17,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-12-14 03:25:17,732 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:25:17,732 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:25:17,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2022-12-14 03:25:17,732 INFO L420 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-12-14 03:25:17,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:25:17,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1409457718, now seen corresponding path program 1 times [2022-12-14 03:25:17,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:25:17,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788419344] [2022-12-14 03:25:17,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:25:17,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:25:17,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:25:27,114 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:25:27,114 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:25:27,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788419344] [2022-12-14 03:25:27,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788419344] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 03:25:27,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [469581272] [2022-12-14 03:25:27,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:25:27,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 03:25:27,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c22888fc-4028-4c88-b6b8-b4a99330d4c2/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 03:25:27,116 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c22888fc-4028-4c88-b6b8-b4a99330d4c2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 03:25:27,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c22888fc-4028-4c88-b6b8-b4a99330d4c2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 03:25:27,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:25:27,395 INFO L263 TraceCheckSpWp]: Trace formula consists of 892 conjuncts, 126 conjunts are in the unsatisfiable core [2022-12-14 03:25:27,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 03:26:09,736 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:26:09,736 INFO L328 TraceCheckSpWp]: Computing backward predicates...