./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 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_ca6da9ec-ce4b-4199-814f-ce2a3b637a1c/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6da9ec-ce4b-4199-814f-ce2a3b637a1c/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6da9ec-ce4b-4199-814f-ce2a3b637a1c/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6da9ec-ce4b-4199-814f-ce2a3b637a1c/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6da9ec-ce4b-4199-814f-ce2a3b637a1c/bin/utaipan-g80aRyZoba/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6da9ec-ce4b-4199-814f-ce2a3b637a1c/bin/utaipan-g80aRyZoba --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 f8b90978b682a83c8f6f0d2fe75b83e30918fdef6451144e6a40fff2a4b9e706 --- 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-b5237d8 [2022-11-22 02:33:03,732 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 02:33:03,735 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 02:33:03,763 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 02:33:03,764 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 02:33:03,765 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 02:33:03,766 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 02:33:03,768 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 02:33:03,770 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 02:33:03,771 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 02:33:03,772 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 02:33:03,776 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 02:33:03,776 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 02:33:03,777 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 02:33:03,779 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 02:33:03,780 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 02:33:03,781 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 02:33:03,782 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 02:33:03,784 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 02:33:03,786 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 02:33:03,788 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 02:33:03,802 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 02:33:03,803 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 02:33:03,804 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 02:33:03,808 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 02:33:03,809 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 02:33:03,809 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 02:33:03,810 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 02:33:03,811 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 02:33:03,812 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 02:33:03,812 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 02:33:03,813 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 02:33:03,823 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 02:33:03,826 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 02:33:03,829 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 02:33:03,830 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 02:33:03,831 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 02:33:03,832 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 02:33:03,832 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 02:33:03,834 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 02:33:03,835 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 02:33:03,836 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6da9ec-ce4b-4199-814f-ce2a3b637a1c/bin/utaipan-g80aRyZoba/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-22 02:33:03,889 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 02:33:03,889 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 02:33:03,889 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 02:33:03,890 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 02:33:03,896 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 02:33:03,897 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 02:33:03,897 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 02:33:03,897 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 02:33:03,897 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 02:33:03,898 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 02:33:03,899 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 02:33:03,899 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 02:33:03,899 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 02:33:03,900 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 02:33:03,900 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 02:33:03,900 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 02:33:03,900 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 02:33:03,901 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 02:33:03,901 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 02:33:03,902 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 02:33:03,902 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 02:33:03,902 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 02:33:03,902 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 02:33:03,903 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 02:33:03,903 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 02:33:03,903 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 02:33:03,904 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 02:33:03,904 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 02:33:03,904 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 02:33:03,904 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 02:33:03,905 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 02:33:03,905 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 02:33:03,905 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:33:03,906 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 02:33:03,906 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 02:33:03,906 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 02:33:03,906 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 02:33:03,907 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 02:33:03,907 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 02:33:03,907 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 02:33:03,907 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 02:33:03,907 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_ca6da9ec-ce4b-4199-814f-ce2a3b637a1c/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6da9ec-ce4b-4199-814f-ce2a3b637a1c/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f8b90978b682a83c8f6f0d2fe75b83e30918fdef6451144e6a40fff2a4b9e706 [2022-11-22 02:33:04,204 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 02:33:04,235 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 02:33:04,238 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 02:33:04,240 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 02:33:04,240 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 02:33:04,242 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6da9ec-ce4b-4199-814f-ce2a3b637a1c/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c [2022-11-22 02:33:07,430 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 02:33:08,138 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 02:33:08,140 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6da9ec-ce4b-4199-814f-ce2a3b637a1c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c [2022-11-22 02:33:08,227 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6da9ec-ce4b-4199-814f-ce2a3b637a1c/bin/utaipan-g80aRyZoba/data/7a86f5166/0777e1173f4949a0b77a67adfbbde5e4/FLAGe79e52c9e [2022-11-22 02:33:08,247 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6da9ec-ce4b-4199-814f-ce2a3b637a1c/bin/utaipan-g80aRyZoba/data/7a86f5166/0777e1173f4949a0b77a67adfbbde5e4 [2022-11-22 02:33:08,253 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 02:33:08,255 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 02:33:08,258 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 02:33:08,258 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 02:33:08,263 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 02:33:08,263 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:33:08" (1/1) ... [2022-11-22 02:33:08,265 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@331d6e33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:33:08, skipping insertion in model container [2022-11-22 02:33:08,266 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:33:08" (1/1) ... [2022-11-22 02:33:08,275 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 02:33:08,720 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 02:33:10,148 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_ca6da9ec-ce4b-4199-814f-ce2a3b637a1c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[172160,172173] [2022-11-22 02:33:10,443 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_ca6da9ec-ce4b-4199-814f-ce2a3b637a1c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[250199,250212] [2022-11-22 02:33:10,625 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_ca6da9ec-ce4b-4199-814f-ce2a3b637a1c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[289422,289435] [2022-11-22 02:33:10,699 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_ca6da9ec-ce4b-4199-814f-ce2a3b637a1c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[309133,309146] [2022-11-22 02:33:10,737 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_ca6da9ec-ce4b-4199-814f-ce2a3b637a1c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[319011,319024] [2022-11-22 02:33:10,758 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_ca6da9ec-ce4b-4199-814f-ce2a3b637a1c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[323922,323935] [2022-11-22 02:33:10,777 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_ca6da9ec-ce4b-4199-814f-ce2a3b637a1c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[328750,328763] [2022-11-22 02:33:11,068 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_ca6da9ec-ce4b-4199-814f-ce2a3b637a1c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[405185,405198] [2022-11-22 02:33:11,219 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_ca6da9ec-ce4b-4199-814f-ce2a3b637a1c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[443553,443566] [2022-11-22 02:33:11,295 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_ca6da9ec-ce4b-4199-814f-ce2a3b637a1c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[463065,463078] [2022-11-22 02:33:11,341 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_ca6da9ec-ce4b-4199-814f-ce2a3b637a1c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[472989,473002] [2022-11-22 02:33:11,364 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_ca6da9ec-ce4b-4199-814f-ce2a3b637a1c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[477943,477956] [2022-11-22 02:33:11,387 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_ca6da9ec-ce4b-4199-814f-ce2a3b637a1c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[482814,482827] [2022-11-22 02:33:11,555 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_ca6da9ec-ce4b-4199-814f-ce2a3b637a1c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[521320,521333] [2022-11-22 02:33:11,638 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_ca6da9ec-ce4b-4199-814f-ce2a3b637a1c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[540838,540851] [2022-11-22 02:33:11,678 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_ca6da9ec-ce4b-4199-814f-ce2a3b637a1c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[550762,550775] [2022-11-22 02:33:11,699 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_ca6da9ec-ce4b-4199-814f-ce2a3b637a1c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[555716,555729] [2022-11-22 02:33:11,720 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_ca6da9ec-ce4b-4199-814f-ce2a3b637a1c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[560575,560588] [2022-11-22 02:33:11,846 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_ca6da9ec-ce4b-4199-814f-ce2a3b637a1c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[581321,581334] [2022-11-22 02:33:11,885 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_ca6da9ec-ce4b-4199-814f-ce2a3b637a1c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[591188,591201] [2022-11-22 02:33:11,908 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_ca6da9ec-ce4b-4199-814f-ce2a3b637a1c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[596115,596128] [2022-11-22 02:33:11,939 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_ca6da9ec-ce4b-4199-814f-ce2a3b637a1c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[600957,600970] [2022-11-22 02:33:11,965 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_ca6da9ec-ce4b-4199-814f-ce2a3b637a1c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[606379,606392] [2022-11-22 02:33:11,986 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_ca6da9ec-ce4b-4199-814f-ce2a3b637a1c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[611215,611228] [2022-11-22 02:33:12,008 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_ca6da9ec-ce4b-4199-814f-ce2a3b637a1c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[616142,616155] [2022-11-22 02:33:12,029 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_ca6da9ec-ce4b-4199-814f-ce2a3b637a1c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[620984,620997] [2022-11-22 02:33:12,051 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_ca6da9ec-ce4b-4199-814f-ce2a3b637a1c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[626027,626040] [2022-11-22 02:33:12,073 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_ca6da9ec-ce4b-4199-814f-ce2a3b637a1c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[631036,631049] [2022-11-22 02:33:12,095 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_ca6da9ec-ce4b-4199-814f-ce2a3b637a1c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[635974,635987] [2022-11-22 02:33:12,163 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:33:12,189 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 02:33:12,782 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_ca6da9ec-ce4b-4199-814f-ce2a3b637a1c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[172160,172173] [2022-11-22 02:33:13,032 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_ca6da9ec-ce4b-4199-814f-ce2a3b637a1c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[250199,250212] [2022-11-22 02:33:13,197 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_ca6da9ec-ce4b-4199-814f-ce2a3b637a1c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[289422,289435] [2022-11-22 02:33:13,261 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_ca6da9ec-ce4b-4199-814f-ce2a3b637a1c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[309133,309146] [2022-11-22 02:33:13,293 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_ca6da9ec-ce4b-4199-814f-ce2a3b637a1c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[319011,319024] [2022-11-22 02:33:13,310 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_ca6da9ec-ce4b-4199-814f-ce2a3b637a1c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[323922,323935] [2022-11-22 02:33:13,326 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_ca6da9ec-ce4b-4199-814f-ce2a3b637a1c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[328750,328763] [2022-11-22 02:33:13,559 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_ca6da9ec-ce4b-4199-814f-ce2a3b637a1c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[405185,405198] [2022-11-22 02:33:13,672 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_ca6da9ec-ce4b-4199-814f-ce2a3b637a1c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[443553,443566] [2022-11-22 02:33:13,740 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_ca6da9ec-ce4b-4199-814f-ce2a3b637a1c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[463065,463078] [2022-11-22 02:33:13,773 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_ca6da9ec-ce4b-4199-814f-ce2a3b637a1c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[472989,473002] [2022-11-22 02:33:13,790 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_ca6da9ec-ce4b-4199-814f-ce2a3b637a1c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[477943,477956] [2022-11-22 02:33:13,807 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_ca6da9ec-ce4b-4199-814f-ce2a3b637a1c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[482814,482827] [2022-11-22 02:33:13,918 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_ca6da9ec-ce4b-4199-814f-ce2a3b637a1c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[521320,521333] [2022-11-22 02:33:13,977 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_ca6da9ec-ce4b-4199-814f-ce2a3b637a1c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[540838,540851] [2022-11-22 02:33:14,009 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_ca6da9ec-ce4b-4199-814f-ce2a3b637a1c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[550762,550775] [2022-11-22 02:33:14,027 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_ca6da9ec-ce4b-4199-814f-ce2a3b637a1c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[555716,555729] [2022-11-22 02:33:14,044 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_ca6da9ec-ce4b-4199-814f-ce2a3b637a1c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[560575,560588] [2022-11-22 02:33:14,121 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_ca6da9ec-ce4b-4199-814f-ce2a3b637a1c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[581321,581334] [2022-11-22 02:33:14,151 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_ca6da9ec-ce4b-4199-814f-ce2a3b637a1c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[591188,591201] [2022-11-22 02:33:14,168 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_ca6da9ec-ce4b-4199-814f-ce2a3b637a1c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[596115,596128] [2022-11-22 02:33:14,184 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_ca6da9ec-ce4b-4199-814f-ce2a3b637a1c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[600957,600970] [2022-11-22 02:33:14,258 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_ca6da9ec-ce4b-4199-814f-ce2a3b637a1c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[606379,606392] [2022-11-22 02:33:14,275 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_ca6da9ec-ce4b-4199-814f-ce2a3b637a1c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[611215,611228] [2022-11-22 02:33:14,291 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_ca6da9ec-ce4b-4199-814f-ce2a3b637a1c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[616142,616155] [2022-11-22 02:33:14,307 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_ca6da9ec-ce4b-4199-814f-ce2a3b637a1c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[620984,620997] [2022-11-22 02:33:14,326 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_ca6da9ec-ce4b-4199-814f-ce2a3b637a1c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[626027,626040] [2022-11-22 02:33:14,343 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_ca6da9ec-ce4b-4199-814f-ce2a3b637a1c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[631036,631049] [2022-11-22 02:33:14,359 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_ca6da9ec-ce4b-4199-814f-ce2a3b637a1c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c[635974,635987] [2022-11-22 02:33:14,408 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:33:14,463 INFO L208 MainTranslator]: Completed translation [2022-11-22 02:33:14,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:33:14 WrapperNode [2022-11-22 02:33:14,465 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 02:33:14,466 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 02:33:14,467 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 02:33:14,467 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 02:33:14,476 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:33:14" (1/1) ... [2022-11-22 02:33:14,618 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:33:14" (1/1) ... [2022-11-22 02:33:15,026 INFO L138 Inliner]: procedures = 26, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 26578 [2022-11-22 02:33:15,026 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 02:33:15,027 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 02:33:15,027 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 02:33:15,027 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 02:33:15,038 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:33:14" (1/1) ... [2022-11-22 02:33:15,038 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:33:14" (1/1) ... [2022-11-22 02:33:15,236 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:33:14" (1/1) ... [2022-11-22 02:33:15,237 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:33:14" (1/1) ... [2022-11-22 02:33:15,429 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:33:14" (1/1) ... [2022-11-22 02:33:15,527 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:33:14" (1/1) ... [2022-11-22 02:33:15,624 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:33:14" (1/1) ... [2022-11-22 02:33:15,684 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:33:14" (1/1) ... [2022-11-22 02:33:15,786 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 02:33:15,787 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 02:33:15,788 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 02:33:15,788 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 02:33:15,789 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:33:14" (1/1) ... [2022-11-22 02:33:15,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:33:15,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6da9ec-ce4b-4199-814f-ce2a3b637a1c/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:33:15,822 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6da9ec-ce4b-4199-814f-ce2a3b637a1c/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 02:33:15,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca6da9ec-ce4b-4199-814f-ce2a3b637a1c/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 02:33:15,877 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 02:33:15,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 02:33:15,878 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 02:33:15,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 02:33:16,576 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 02:33:16,579 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 02:33:29,333 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 02:33:30,640 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 02:33:30,646 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-22 02:33:30,660 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:33:30 BoogieIcfgContainer [2022-11-22 02:33:30,664 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 02:33:30,667 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 02:33:30,667 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 02:33:30,674 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 02:33:30,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:33:08" (1/3) ... [2022-11-22 02:33:30,678 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62c8179 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:33:30, skipping insertion in model container [2022-11-22 02:33:30,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:33:14" (2/3) ... [2022-11-22 02:33:30,680 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62c8179 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:33:30, skipping insertion in model container [2022-11-22 02:33:30,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:33:30" (3/3) ... [2022-11-22 02:33:30,682 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+sep-reducer.c [2022-11-22 02:33:30,701 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 02:33:30,701 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 29 error locations. [2022-11-22 02:33:30,884 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 02:33:30,892 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;@742b2c2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 02:33:30,892 INFO L358 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2022-11-22 02:33:30,916 INFO L276 IsEmpty]: Start isEmpty. Operand has 5383 states, 5353 states have (on average 1.7498598916495423) internal successors, (9367), 5382 states have internal predecessors, (9367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:33:30,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-11-22 02:33:30,991 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:33:30,991 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] [2022-11-22 02:33:30,992 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:33:30,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:33:30,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1843961460, now seen corresponding path program 1 times [2022-11-22 02:33:31,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:33:31,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827785800] [2022-11-22 02:33:31,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:33:31,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:33:31,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:33:32,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:33:32,287 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:33:32,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827785800] [2022-11-22 02:33:32,289 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827785800] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:33:32,290 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:33:32,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:33:32,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234719345] [2022-11-22 02:33:32,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:33:32,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:33:32,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:33:32,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:33:32,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:33:32,357 INFO L87 Difference]: Start difference. First operand has 5383 states, 5353 states have (on average 1.7498598916495423) internal successors, (9367), 5382 states have internal predecessors, (9367), 0 states have call successors, (0), 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 20.2) internal successors, (101), 4 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) [2022-11-22 02:33:38,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:33:38,677 INFO L93 Difference]: Finished difference Result 7347 states and 12579 transitions. [2022-11-22 02:33:38,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:33:38,680 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 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 [2022-11-22 02:33:38,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:33:38,728 INFO L225 Difference]: With dead ends: 7347 [2022-11-22 02:33:38,729 INFO L226 Difference]: Without dead ends: 4869 [2022-11-22 02:33:38,745 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-22 02:33:38,760 INFO L413 NwaCegarLoop]: 4188 mSDtfsCounter, 24506 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 4070 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24506 SdHoareTripleChecker+Valid, 4292 SdHoareTripleChecker+Invalid, 4199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 4070 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-11-22 02:33:38,762 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24506 Valid, 4292 Invalid, 4199 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [129 Valid, 4070 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2022-11-22 02:33:38,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4869 states. [2022-11-22 02:33:39,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4869 to 4869. [2022-11-22 02:33:39,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4869 states, 4840 states have (on average 1.2913223140495869) internal successors, (6250), 4868 states have internal predecessors, (6250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:33:39,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4869 states to 4869 states and 6250 transitions. [2022-11-22 02:33:39,064 INFO L78 Accepts]: Start accepts. Automaton has 4869 states and 6250 transitions. Word has length 101 [2022-11-22 02:33:39,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:33:39,065 INFO L495 AbstractCegarLoop]: Abstraction has 4869 states and 6250 transitions. [2022-11-22 02:33:39,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 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) [2022-11-22 02:33:39,066 INFO L276 IsEmpty]: Start isEmpty. Operand 4869 states and 6250 transitions. [2022-11-22 02:33:39,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-11-22 02:33:39,079 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:33:39,080 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] [2022-11-22 02:33:39,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 02:33:39,080 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:33:39,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:33:39,081 INFO L85 PathProgramCache]: Analyzing trace with hash -564189146, now seen corresponding path program 1 times [2022-11-22 02:33:39,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:33:39,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577322256] [2022-11-22 02:33:39,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:33:39,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:33:39,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:33:39,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:33:39,616 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:33:39,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577322256] [2022-11-22 02:33:39,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577322256] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:33:39,617 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:33:39,617 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:33:39,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174238126] [2022-11-22 02:33:39,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:33:39,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:33:39,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:33:39,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:33:39,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:33:39,620 INFO L87 Difference]: Start difference. First operand 4869 states and 6250 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 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) [2022-11-22 02:33:43,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:33:43,624 INFO L93 Difference]: Finished difference Result 5963 states and 7638 transitions. [2022-11-22 02:33:43,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:33:43,625 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 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 [2022-11-22 02:33:43,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:33:43,642 INFO L225 Difference]: With dead ends: 5963 [2022-11-22 02:33:43,642 INFO L226 Difference]: Without dead ends: 3569 [2022-11-22 02:33:43,648 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-22 02:33:43,650 INFO L413 NwaCegarLoop]: 2086 mSDtfsCounter, 13773 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 2545 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13773 SdHoareTripleChecker+Valid, 2106 SdHoareTripleChecker+Invalid, 2582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 2545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-11-22 02:33:43,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13773 Valid, 2106 Invalid, 2582 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [37 Valid, 2545 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-11-22 02:33:43,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3569 states. [2022-11-22 02:33:43,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3569 to 3569. [2022-11-22 02:33:43,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3569 states, 3540 states have (on average 1.3076271186440678) internal successors, (4629), 3568 states have internal predecessors, (4629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:33:43,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3569 states to 3569 states and 4629 transitions. [2022-11-22 02:33:43,917 INFO L78 Accepts]: Start accepts. Automaton has 3569 states and 4629 transitions. Word has length 101 [2022-11-22 02:33:43,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:33:43,921 INFO L495 AbstractCegarLoop]: Abstraction has 3569 states and 4629 transitions. [2022-11-22 02:33:43,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 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) [2022-11-22 02:33:43,921 INFO L276 IsEmpty]: Start isEmpty. Operand 3569 states and 4629 transitions. [2022-11-22 02:33:43,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-11-22 02:33:43,933 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:33:43,934 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] [2022-11-22 02:33:43,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 02:33:43,935 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:33:43,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:33:43,938 INFO L85 PathProgramCache]: Analyzing trace with hash -1247482897, now seen corresponding path program 1 times [2022-11-22 02:33:43,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:33:43,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444607900] [2022-11-22 02:33:43,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:33:43,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:33:44,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:33:44,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:33:44,422 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:33:44,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444607900] [2022-11-22 02:33:44,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444607900] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:33:44,423 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:33:44,423 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:33:44,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261058845] [2022-11-22 02:33:44,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:33:44,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:33:44,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:33:44,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:33:44,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:33:44,427 INFO L87 Difference]: Start difference. First operand 3569 states and 4629 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 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) [2022-11-22 02:33:47,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:33:47,014 INFO L93 Difference]: Finished difference Result 4375 states and 5632 transitions. [2022-11-22 02:33:47,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:33:47,015 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 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 [2022-11-22 02:33:47,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:33:47,025 INFO L225 Difference]: With dead ends: 4375 [2022-11-22 02:33:47,026 INFO L226 Difference]: Without dead ends: 2637 [2022-11-22 02:33:47,029 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-22 02:33:47,030 INFO L413 NwaCegarLoop]: 1578 mSDtfsCounter, 10196 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 1864 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10196 SdHoareTripleChecker+Valid, 1606 SdHoareTripleChecker+Invalid, 1901 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1864 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-22 02:33:47,030 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10196 Valid, 1606 Invalid, 1901 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1864 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-22 02:33:47,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2637 states. [2022-11-22 02:33:47,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2637 to 2637. [2022-11-22 02:33:47,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2637 states, 2608 states have (on average 1.3190184049079754) internal successors, (3440), 2636 states have internal predecessors, (3440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:33:47,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2637 states to 2637 states and 3440 transitions. [2022-11-22 02:33:47,173 INFO L78 Accepts]: Start accepts. Automaton has 2637 states and 3440 transitions. Word has length 101 [2022-11-22 02:33:47,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:33:47,175 INFO L495 AbstractCegarLoop]: Abstraction has 2637 states and 3440 transitions. [2022-11-22 02:33:47,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 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) [2022-11-22 02:33:47,176 INFO L276 IsEmpty]: Start isEmpty. Operand 2637 states and 3440 transitions. [2022-11-22 02:33:47,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-22 02:33:47,184 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:33:47,184 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] [2022-11-22 02:33:47,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 02:33:47,184 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:33:47,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:33:47,186 INFO L85 PathProgramCache]: Analyzing trace with hash -1413940705, now seen corresponding path program 1 times [2022-11-22 02:33:47,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:33:47,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095407362] [2022-11-22 02:33:47,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:33:47,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:33:47,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:33:47,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:33:47,468 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:33:47,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095407362] [2022-11-22 02:33:47,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095407362] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:33:47,470 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:33:47,470 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:33:47,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855198921] [2022-11-22 02:33:47,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:33:47,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:33:47,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:33:47,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:33:47,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:33:47,476 INFO L87 Difference]: Start difference. First operand 2637 states and 3440 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:33:50,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:33:50,925 INFO L93 Difference]: Finished difference Result 5008 states and 6556 transitions. [2022-11-22 02:33:50,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:33:50,925 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 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 103 [2022-11-22 02:33:50,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:33:50,938 INFO L225 Difference]: With dead ends: 5008 [2022-11-22 02:33:50,939 INFO L226 Difference]: Without dead ends: 3674 [2022-11-22 02:33:50,948 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-22 02:33:50,951 INFO L413 NwaCegarLoop]: 1567 mSDtfsCounter, 12713 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 2519 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12713 SdHoareTripleChecker+Valid, 2372 SdHoareTripleChecker+Invalid, 2528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:33:50,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12713 Valid, 2372 Invalid, 2528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 2519 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-11-22 02:33:50,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3674 states. [2022-11-22 02:33:51,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3674 to 3475. [2022-11-22 02:33:51,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3475 states, 3446 states have (on average 1.3482298316889147) internal successors, (4646), 3474 states have internal predecessors, (4646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:33:51,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3475 states to 3475 states and 4646 transitions. [2022-11-22 02:33:51,354 INFO L78 Accepts]: Start accepts. Automaton has 3475 states and 4646 transitions. Word has length 103 [2022-11-22 02:33:51,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:33:51,355 INFO L495 AbstractCegarLoop]: Abstraction has 3475 states and 4646 transitions. [2022-11-22 02:33:51,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:33:51,356 INFO L276 IsEmpty]: Start isEmpty. Operand 3475 states and 4646 transitions. [2022-11-22 02:33:51,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-11-22 02:33:51,369 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:33:51,369 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:33:51,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 02:33:51,370 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:33:51,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:33:51,371 INFO L85 PathProgramCache]: Analyzing trace with hash -2001631897, now seen corresponding path program 1 times [2022-11-22 02:33:51,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:33:51,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281191005] [2022-11-22 02:33:51,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:33:51,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:33:51,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:33:51,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:33:51,742 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:33:51,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281191005] [2022-11-22 02:33:51,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281191005] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:33:51,743 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:33:51,743 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:33:51,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679504456] [2022-11-22 02:33:51,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:33:51,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:33:51,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:33:51,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:33:51,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:33:51,745 INFO L87 Difference]: Start difference. First operand 3475 states and 4646 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:33:53,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:33:53,837 INFO L93 Difference]: Finished difference Result 5020 states and 6717 transitions. [2022-11-22 02:33:53,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:33:53,838 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2022-11-22 02:33:53,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:33:53,851 INFO L225 Difference]: With dead ends: 5020 [2022-11-22 02:33:53,851 INFO L226 Difference]: Without dead ends: 3252 [2022-11-22 02:33:53,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-22 02:33:53,856 INFO L413 NwaCegarLoop]: 1462 mSDtfsCounter, 8941 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 1547 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8941 SdHoareTripleChecker+Valid, 1474 SdHoareTripleChecker+Invalid, 1557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-22 02:33:53,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8941 Valid, 1474 Invalid, 1557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1547 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-22 02:33:53,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3252 states. [2022-11-22 02:33:54,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3252 to 3252. [2022-11-22 02:33:54,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3252 states, 3223 states have (on average 1.3555693453304374) internal successors, (4369), 3251 states have internal predecessors, (4369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:33:54,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3252 states to 3252 states and 4369 transitions. [2022-11-22 02:33:54,116 INFO L78 Accepts]: Start accepts. Automaton has 3252 states and 4369 transitions. Word has length 105 [2022-11-22 02:33:54,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:33:54,118 INFO L495 AbstractCegarLoop]: Abstraction has 3252 states and 4369 transitions. [2022-11-22 02:33:54,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:33:54,118 INFO L276 IsEmpty]: Start isEmpty. Operand 3252 states and 4369 transitions. [2022-11-22 02:33:54,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-11-22 02:33:54,124 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:33:54,124 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] [2022-11-22 02:33:54,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 02:33:54,125 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:33:54,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:33:54,125 INFO L85 PathProgramCache]: Analyzing trace with hash -807434659, now seen corresponding path program 1 times [2022-11-22 02:33:54,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:33:54,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237515074] [2022-11-22 02:33:54,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:33:54,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:33:54,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:33:54,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:33:54,411 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:33:54,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237515074] [2022-11-22 02:33:54,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237515074] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:33:54,411 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:33:54,411 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:33:54,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351686221] [2022-11-22 02:33:54,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:33:54,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:33:54,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:33:54,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:33:54,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:33:54,413 INFO L87 Difference]: Start difference. First operand 3252 states and 4369 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:33:56,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:33:56,008 INFO L93 Difference]: Finished difference Result 3585 states and 4737 transitions. [2022-11-22 02:33:56,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:33:56,009 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 0 states have call successors, (0), 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 107 [2022-11-22 02:33:56,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:33:56,016 INFO L225 Difference]: With dead ends: 3585 [2022-11-22 02:33:56,016 INFO L226 Difference]: Without dead ends: 2045 [2022-11-22 02:33:56,020 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-22 02:33:56,021 INFO L413 NwaCegarLoop]: 906 mSDtfsCounter, 5424 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 953 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5424 SdHoareTripleChecker+Valid, 950 SdHoareTripleChecker+Invalid, 988 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 953 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-22 02:33:56,021 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5424 Valid, 950 Invalid, 988 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 953 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-22 02:33:56,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2045 states. [2022-11-22 02:33:56,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2045 to 2045. [2022-11-22 02:33:56,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2045 states, 2016 states have (on average 1.3611111111111112) internal successors, (2744), 2044 states have internal predecessors, (2744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:33:56,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2045 states to 2045 states and 2744 transitions. [2022-11-22 02:33:56,225 INFO L78 Accepts]: Start accepts. Automaton has 2045 states and 2744 transitions. Word has length 107 [2022-11-22 02:33:56,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:33:56,225 INFO L495 AbstractCegarLoop]: Abstraction has 2045 states and 2744 transitions. [2022-11-22 02:33:56,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:33:56,226 INFO L276 IsEmpty]: Start isEmpty. Operand 2045 states and 2744 transitions. [2022-11-22 02:33:56,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-11-22 02:33:56,230 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:33:56,230 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] [2022-11-22 02:33:56,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 02:33:56,231 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:33:56,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:33:56,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1740881091, now seen corresponding path program 1 times [2022-11-22 02:33:56,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:33:56,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259451563] [2022-11-22 02:33:56,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:33:56,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:33:56,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:33:56,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:33:56,518 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:33:56,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259451563] [2022-11-22 02:33:56,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259451563] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:33:56,519 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:33:56,519 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:33:56,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233090096] [2022-11-22 02:33:56,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:33:56,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:33:56,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:33:56,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:33:56,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:33:56,521 INFO L87 Difference]: Start difference. First operand 2045 states and 2744 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:33:57,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:33:57,730 INFO L93 Difference]: Finished difference Result 2651 states and 3518 transitions. [2022-11-22 02:33:57,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:33:57,732 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 0 states have call successors, (0), 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 109 [2022-11-22 02:33:57,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:33:57,737 INFO L225 Difference]: With dead ends: 2651 [2022-11-22 02:33:57,737 INFO L226 Difference]: Without dead ends: 1617 [2022-11-22 02:33:57,739 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-22 02:33:57,739 INFO L413 NwaCegarLoop]: 793 mSDtfsCounter, 4286 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 678 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4286 SdHoareTripleChecker+Valid, 829 SdHoareTripleChecker+Invalid, 696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-22 02:33:57,740 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4286 Valid, 829 Invalid, 696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 678 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-22 02:33:57,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1617 states. [2022-11-22 02:33:57,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1617 to 1617. [2022-11-22 02:33:57,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1617 states, 1588 states have (on average 1.369647355163728) internal successors, (2175), 1616 states have internal predecessors, (2175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:33:57,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1617 states to 1617 states and 2175 transitions. [2022-11-22 02:33:57,885 INFO L78 Accepts]: Start accepts. Automaton has 1617 states and 2175 transitions. Word has length 109 [2022-11-22 02:33:57,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:33:57,886 INFO L495 AbstractCegarLoop]: Abstraction has 1617 states and 2175 transitions. [2022-11-22 02:33:57,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:33:57,886 INFO L276 IsEmpty]: Start isEmpty. Operand 1617 states and 2175 transitions. [2022-11-22 02:33:57,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-22 02:33:57,890 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:33:57,890 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] [2022-11-22 02:33:57,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-22 02:33:57,891 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:33:57,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:33:57,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1649960662, now seen corresponding path program 1 times [2022-11-22 02:33:57,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:33:57,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832606536] [2022-11-22 02:33:57,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:33:57,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:33:57,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:33:58,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:33:58,589 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:33:58,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832606536] [2022-11-22 02:33:58,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832606536] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:33:58,590 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:33:58,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:33:58,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255945466] [2022-11-22 02:33:58,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:33:58,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:33:58,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:33:58,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:33:58,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:33:58,592 INFO L87 Difference]: Start difference. First operand 1617 states and 2175 transitions. Second operand has 8 states, 8 states have (on average 13.875) internal successors, (111), 7 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:34:01,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:34:01,412 INFO L93 Difference]: Finished difference Result 2684 states and 3579 transitions. [2022-11-22 02:34:01,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:34:01,413 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.875) internal successors, (111), 7 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2022-11-22 02:34:01,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:34:01,421 INFO L225 Difference]: With dead ends: 2684 [2022-11-22 02:34:01,421 INFO L226 Difference]: Without dead ends: 2347 [2022-11-22 02:34:01,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:34:01,423 INFO L413 NwaCegarLoop]: 887 mSDtfsCounter, 4467 mSDsluCounter, 2712 mSDsCounter, 0 mSdLazyCounter, 2898 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4467 SdHoareTripleChecker+Valid, 3599 SdHoareTripleChecker+Invalid, 2902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2898 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:34:01,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4467 Valid, 3599 Invalid, 2902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2898 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-22 02:34:01,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2347 states. [2022-11-22 02:34:01,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2347 to 1617. [2022-11-22 02:34:01,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1617 states, 1588 states have (on average 1.3690176322418135) internal successors, (2174), 1616 states have internal predecessors, (2174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:34:01,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1617 states to 1617 states and 2174 transitions. [2022-11-22 02:34:01,647 INFO L78 Accepts]: Start accepts. Automaton has 1617 states and 2174 transitions. Word has length 111 [2022-11-22 02:34:01,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:34:01,647 INFO L495 AbstractCegarLoop]: Abstraction has 1617 states and 2174 transitions. [2022-11-22 02:34:01,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.875) internal successors, (111), 7 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:34:01,648 INFO L276 IsEmpty]: Start isEmpty. Operand 1617 states and 2174 transitions. [2022-11-22 02:34:01,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-22 02:34:01,652 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:34:01,653 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] [2022-11-22 02:34:01,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-22 02:34:01,653 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:34:01,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:34:01,654 INFO L85 PathProgramCache]: Analyzing trace with hash 258839018, now seen corresponding path program 1 times [2022-11-22 02:34:01,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:34:01,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314211516] [2022-11-22 02:34:01,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:34:01,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:34:01,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:34:02,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:34:02,280 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:34:02,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314211516] [2022-11-22 02:34:02,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314211516] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:34:02,281 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:34:02,281 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:34:02,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343882986] [2022-11-22 02:34:02,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:34:02,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:34:02,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:34:02,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:34:02,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:34:02,284 INFO L87 Difference]: Start difference. First operand 1617 states and 2174 transitions. Second operand has 8 states, 8 states have (on average 13.875) internal successors, (111), 7 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:34:05,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:34:05,353 INFO L93 Difference]: Finished difference Result 2771 states and 3676 transitions. [2022-11-22 02:34:05,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:34:05,354 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.875) internal successors, (111), 7 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2022-11-22 02:34:05,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:34:05,363 INFO L225 Difference]: With dead ends: 2771 [2022-11-22 02:34:05,363 INFO L226 Difference]: Without dead ends: 2645 [2022-11-22 02:34:05,364 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:34:05,365 INFO L413 NwaCegarLoop]: 854 mSDtfsCounter, 4118 mSDsluCounter, 2768 mSDsCounter, 0 mSdLazyCounter, 2985 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4118 SdHoareTripleChecker+Valid, 3622 SdHoareTripleChecker+Invalid, 2989 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2985 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:34:05,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4118 Valid, 3622 Invalid, 2989 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2985 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-22 02:34:05,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2645 states. [2022-11-22 02:34:05,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2645 to 1617. [2022-11-22 02:34:05,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1617 states, 1588 states have (on average 1.3683879093198992) internal successors, (2173), 1616 states have internal predecessors, (2173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:34:05,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1617 states to 1617 states and 2173 transitions. [2022-11-22 02:34:05,623 INFO L78 Accepts]: Start accepts. Automaton has 1617 states and 2173 transitions. Word has length 111 [2022-11-22 02:34:05,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:34:05,623 INFO L495 AbstractCegarLoop]: Abstraction has 1617 states and 2173 transitions. [2022-11-22 02:34:05,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.875) internal successors, (111), 7 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:34:05,624 INFO L276 IsEmpty]: Start isEmpty. Operand 1617 states and 2173 transitions. [2022-11-22 02:34:05,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-22 02:34:05,628 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:34:05,628 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] [2022-11-22 02:34:05,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-22 02:34:05,628 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:34:05,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:34:05,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1796391338, now seen corresponding path program 1 times [2022-11-22 02:34:05,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:34:05,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278676295] [2022-11-22 02:34:05,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:34:05,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:34:05,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:34:06,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:34:06,474 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:34:06,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278676295] [2022-11-22 02:34:06,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278676295] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:34:06,475 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:34:06,475 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-22 02:34:06,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308517002] [2022-11-22 02:34:06,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:34:06,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-22 02:34:06,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:34:06,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-22 02:34:06,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-11-22 02:34:06,477 INFO L87 Difference]: Start difference. First operand 1617 states and 2173 transitions. Second operand has 10 states, 10 states have (on average 11.1) internal successors, (111), 9 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:34:09,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:34:09,384 INFO L93 Difference]: Finished difference Result 2770 states and 3676 transitions. [2022-11-22 02:34:09,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-22 02:34:09,385 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.1) internal successors, (111), 9 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2022-11-22 02:34:09,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:34:09,394 INFO L225 Difference]: With dead ends: 2770 [2022-11-22 02:34:09,394 INFO L226 Difference]: Without dead ends: 2637 [2022-11-22 02:34:09,396 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=248, Unknown=0, NotChecked=0, Total=342 [2022-11-22 02:34:09,396 INFO L413 NwaCegarLoop]: 854 mSDtfsCounter, 4538 mSDsluCounter, 3452 mSDsCounter, 0 mSdLazyCounter, 3490 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4538 SdHoareTripleChecker+Valid, 4306 SdHoareTripleChecker+Invalid, 3495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 3490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:34:09,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4538 Valid, 4306 Invalid, 3495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 3490 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-22 02:34:09,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2637 states. [2022-11-22 02:34:09,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2637 to 1617. [2022-11-22 02:34:09,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1617 states, 1588 states have (on average 1.3671284634760705) internal successors, (2171), 1616 states have internal predecessors, (2171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:34:09,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1617 states to 1617 states and 2171 transitions. [2022-11-22 02:34:09,706 INFO L78 Accepts]: Start accepts. Automaton has 1617 states and 2171 transitions. Word has length 111 [2022-11-22 02:34:09,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:34:09,706 INFO L495 AbstractCegarLoop]: Abstraction has 1617 states and 2171 transitions. [2022-11-22 02:34:09,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.1) internal successors, (111), 9 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:34:09,707 INFO L276 IsEmpty]: Start isEmpty. Operand 1617 states and 2171 transitions. [2022-11-22 02:34:09,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-22 02:34:09,710 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:34:09,711 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] [2022-11-22 02:34:09,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-22 02:34:09,711 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:34:09,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:34:09,712 INFO L85 PathProgramCache]: Analyzing trace with hash 326600490, now seen corresponding path program 1 times [2022-11-22 02:34:09,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:34:09,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289538981] [2022-11-22 02:34:09,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:34:09,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:34:09,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:34:10,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:34:10,499 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:34:10,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289538981] [2022-11-22 02:34:10,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289538981] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:34:10,499 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:34:10,499 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-22 02:34:10,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346122550] [2022-11-22 02:34:10,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:34:10,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-22 02:34:10,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:34:10,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-22 02:34:10,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-11-22 02:34:10,501 INFO L87 Difference]: Start difference. First operand 1617 states and 2171 transitions. Second operand has 10 states, 10 states have (on average 11.1) internal successors, (111), 9 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:34:13,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:34:13,330 INFO L93 Difference]: Finished difference Result 2770 states and 3672 transitions. [2022-11-22 02:34:13,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-22 02:34:13,331 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.1) internal successors, (111), 9 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2022-11-22 02:34:13,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:34:13,359 INFO L225 Difference]: With dead ends: 2770 [2022-11-22 02:34:13,360 INFO L226 Difference]: Without dead ends: 2637 [2022-11-22 02:34:13,362 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=248, Unknown=0, NotChecked=0, Total=342 [2022-11-22 02:34:13,363 INFO L413 NwaCegarLoop]: 854 mSDtfsCounter, 4905 mSDsluCounter, 3452 mSDsCounter, 0 mSdLazyCounter, 3484 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4905 SdHoareTripleChecker+Valid, 4306 SdHoareTripleChecker+Invalid, 3490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 3484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:34:13,364 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4905 Valid, 4306 Invalid, 3490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 3484 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-22 02:34:13,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2637 states. [2022-11-22 02:34:13,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2637 to 1617. [2022-11-22 02:34:13,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1617 states, 1588 states have (on average 1.3658690176322419) internal successors, (2169), 1616 states have internal predecessors, (2169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:34:13,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1617 states to 1617 states and 2169 transitions. [2022-11-22 02:34:13,589 INFO L78 Accepts]: Start accepts. Automaton has 1617 states and 2169 transitions. Word has length 111 [2022-11-22 02:34:13,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:34:13,590 INFO L495 AbstractCegarLoop]: Abstraction has 1617 states and 2169 transitions. [2022-11-22 02:34:13,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.1) internal successors, (111), 9 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:34:13,590 INFO L276 IsEmpty]: Start isEmpty. Operand 1617 states and 2169 transitions. [2022-11-22 02:34:13,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-22 02:34:13,592 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:34:13,592 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] [2022-11-22 02:34:13,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-22 02:34:13,593 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:34:13,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:34:13,593 INFO L85 PathProgramCache]: Analyzing trace with hash 1875669866, now seen corresponding path program 1 times [2022-11-22 02:34:13,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:34:13,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111284234] [2022-11-22 02:34:13,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:34:13,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:34:13,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:34:14,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:34:14,396 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:34:14,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111284234] [2022-11-22 02:34:14,396 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111284234] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:34:14,396 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:34:14,396 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-22 02:34:14,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010346251] [2022-11-22 02:34:14,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:34:14,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-22 02:34:14,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:34:14,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-22 02:34:14,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-11-22 02:34:14,398 INFO L87 Difference]: Start difference. First operand 1617 states and 2169 transitions. Second operand has 10 states, 10 states have (on average 11.1) internal successors, (111), 9 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:34:17,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:34:17,528 INFO L93 Difference]: Finished difference Result 2656 states and 3514 transitions. [2022-11-22 02:34:17,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-22 02:34:17,529 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.1) internal successors, (111), 9 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2022-11-22 02:34:17,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:34:17,535 INFO L225 Difference]: With dead ends: 2656 [2022-11-22 02:34:17,535 INFO L226 Difference]: Without dead ends: 2637 [2022-11-22 02:34:17,536 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=248, Unknown=0, NotChecked=0, Total=342 [2022-11-22 02:34:17,537 INFO L413 NwaCegarLoop]: 862 mSDtfsCounter, 4907 mSDsluCounter, 3469 mSDsCounter, 0 mSdLazyCounter, 3482 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4907 SdHoareTripleChecker+Valid, 4331 SdHoareTripleChecker+Invalid, 3488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 3482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-22 02:34:17,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4907 Valid, 4331 Invalid, 3488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 3482 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-22 02:34:17,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2637 states. [2022-11-22 02:34:17,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2637 to 1617. [2022-11-22 02:34:17,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1617 states, 1588 states have (on average 1.364609571788413) internal successors, (2167), 1616 states have internal predecessors, (2167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:34:17,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1617 states to 1617 states and 2167 transitions. [2022-11-22 02:34:17,741 INFO L78 Accepts]: Start accepts. Automaton has 1617 states and 2167 transitions. Word has length 111 [2022-11-22 02:34:17,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:34:17,741 INFO L495 AbstractCegarLoop]: Abstraction has 1617 states and 2167 transitions. [2022-11-22 02:34:17,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.1) internal successors, (111), 9 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:34:17,742 INFO L276 IsEmpty]: Start isEmpty. Operand 1617 states and 2167 transitions. [2022-11-22 02:34:17,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-22 02:34:17,745 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:34:17,745 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:34:17,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-22 02:34:17,746 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:34:17,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:34:17,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1597389270, now seen corresponding path program 1 times [2022-11-22 02:34:17,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:34:17,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926310549] [2022-11-22 02:34:17,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:34:17,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:34:17,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:34:18,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:34:18,385 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:34:18,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926310549] [2022-11-22 02:34:18,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926310549] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:34:18,386 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:34:18,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-22 02:34:18,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977169362] [2022-11-22 02:34:18,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:34:18,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-22 02:34:18,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:34:18,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-22 02:34:18,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-22 02:34:18,388 INFO L87 Difference]: Start difference. First operand 1617 states and 2167 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 6 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:34:20,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:34:20,806 INFO L93 Difference]: Finished difference Result 2746 states and 3532 transitions. [2022-11-22 02:34:20,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-22 02:34:20,807 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 6 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2022-11-22 02:34:20,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:34:20,811 INFO L225 Difference]: With dead ends: 2746 [2022-11-22 02:34:20,811 INFO L226 Difference]: Without dead ends: 2082 [2022-11-22 02:34:20,813 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 [2022-11-22 02:34:20,814 INFO L413 NwaCegarLoop]: 758 mSDtfsCounter, 4334 mSDsluCounter, 1570 mSDsCounter, 0 mSdLazyCounter, 2112 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4334 SdHoareTripleChecker+Valid, 2328 SdHoareTripleChecker+Invalid, 2113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-22 02:34:20,814 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4334 Valid, 2328 Invalid, 2113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2112 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-22 02:34:20,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2082 states. [2022-11-22 02:34:21,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2082 to 1617. [2022-11-22 02:34:21,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1617 states, 1588 states have (on average 1.3639798488664987) internal successors, (2166), 1616 states have internal predecessors, (2166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:34:21,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1617 states to 1617 states and 2166 transitions. [2022-11-22 02:34:21,023 INFO L78 Accepts]: Start accepts. Automaton has 1617 states and 2166 transitions. Word has length 111 [2022-11-22 02:34:21,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:34:21,023 INFO L495 AbstractCegarLoop]: Abstraction has 1617 states and 2166 transitions. [2022-11-22 02:34:21,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 6 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:34:21,024 INFO L276 IsEmpty]: Start isEmpty. Operand 1617 states and 2166 transitions. [2022-11-22 02:34:21,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-11-22 02:34:21,027 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:34:21,027 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] [2022-11-22 02:34:21,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-22 02:34:21,028 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:34:21,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:34:21,028 INFO L85 PathProgramCache]: Analyzing trace with hash -112789968, now seen corresponding path program 1 times [2022-11-22 02:34:21,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:34:21,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434097837] [2022-11-22 02:34:21,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:34:21,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:34:21,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:34:21,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:34:21,687 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:34:21,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434097837] [2022-11-22 02:34:21,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434097837] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:34:21,688 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:34:21,688 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:34:21,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801540414] [2022-11-22 02:34:21,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:34:21,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:34:21,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:34:21,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:34:21,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:34:21,690 INFO L87 Difference]: Start difference. First operand 1617 states and 2166 transitions. Second operand has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:34:24,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:34:24,457 INFO L93 Difference]: Finished difference Result 2822 states and 3754 transitions. [2022-11-22 02:34:24,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:34:24,457 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 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 112 [2022-11-22 02:34:24,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:34:24,462 INFO L225 Difference]: With dead ends: 2822 [2022-11-22 02:34:24,462 INFO L226 Difference]: Without dead ends: 2693 [2022-11-22 02:34:24,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:34:24,464 INFO L413 NwaCegarLoop]: 828 mSDtfsCounter, 4130 mSDsluCounter, 2810 mSDsCounter, 0 mSdLazyCounter, 2848 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4130 SdHoareTripleChecker+Valid, 3638 SdHoareTripleChecker+Invalid, 2853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 2848 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-22 02:34:24,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4130 Valid, 3638 Invalid, 2853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 2848 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-22 02:34:24,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2693 states. [2022-11-22 02:34:24,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2693 to 1617. [2022-11-22 02:34:24,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1617 states, 1588 states have (on average 1.3633501259445844) internal successors, (2165), 1616 states have internal predecessors, (2165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:34:24,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1617 states to 1617 states and 2165 transitions. [2022-11-22 02:34:24,680 INFO L78 Accepts]: Start accepts. Automaton has 1617 states and 2165 transitions. Word has length 112 [2022-11-22 02:34:24,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:34:24,681 INFO L495 AbstractCegarLoop]: Abstraction has 1617 states and 2165 transitions. [2022-11-22 02:34:24,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:34:24,681 INFO L276 IsEmpty]: Start isEmpty. Operand 1617 states and 2165 transitions. [2022-11-22 02:34:24,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-11-22 02:34:24,685 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:34:24,685 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] [2022-11-22 02:34:24,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-22 02:34:24,685 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:34:24,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:34:24,686 INFO L85 PathProgramCache]: Analyzing trace with hash 362774875, now seen corresponding path program 1 times [2022-11-22 02:34:24,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:34:24,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030215288] [2022-11-22 02:34:24,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:34:24,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:34:24,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:34:25,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:34:25,288 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:34:25,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030215288] [2022-11-22 02:34:25,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030215288] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:34:25,289 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:34:25,289 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:34:25,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057825887] [2022-11-22 02:34:25,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:34:25,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:34:25,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:34:25,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:34:25,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:34:25,291 INFO L87 Difference]: Start difference. First operand 1617 states and 2165 transitions. Second operand has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:34:28,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:34:28,243 INFO L93 Difference]: Finished difference Result 2760 states and 3647 transitions. [2022-11-22 02:34:28,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:34:28,243 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 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 112 [2022-11-22 02:34:28,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:34:28,247 INFO L225 Difference]: With dead ends: 2760 [2022-11-22 02:34:28,247 INFO L226 Difference]: Without dead ends: 2645 [2022-11-22 02:34:28,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:34:28,249 INFO L413 NwaCegarLoop]: 857 mSDtfsCounter, 6124 mSDsluCounter, 2806 mSDsCounter, 0 mSdLazyCounter, 2985 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6124 SdHoareTripleChecker+Valid, 3663 SdHoareTripleChecker+Invalid, 2989 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2985 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-22 02:34:28,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6124 Valid, 3663 Invalid, 2989 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2985 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-22 02:34:28,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2645 states. [2022-11-22 02:34:28,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2645 to 1617. [2022-11-22 02:34:28,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1617 states, 1588 states have (on average 1.36272040302267) internal successors, (2164), 1616 states have internal predecessors, (2164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:34:28,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1617 states to 1617 states and 2164 transitions. [2022-11-22 02:34:28,495 INFO L78 Accepts]: Start accepts. Automaton has 1617 states and 2164 transitions. Word has length 112 [2022-11-22 02:34:28,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:34:28,495 INFO L495 AbstractCegarLoop]: Abstraction has 1617 states and 2164 transitions. [2022-11-22 02:34:28,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:34:28,496 INFO L276 IsEmpty]: Start isEmpty. Operand 1617 states and 2164 transitions. [2022-11-22 02:34:28,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-11-22 02:34:28,499 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:34:28,499 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:34:28,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-22 02:34:28,500 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:34:28,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:34:28,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1942312309, now seen corresponding path program 1 times [2022-11-22 02:34:28,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:34:28,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991027912] [2022-11-22 02:34:28,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:34:28,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:34:28,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:34:29,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:34:29,064 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:34:29,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991027912] [2022-11-22 02:34:29,065 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991027912] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:34:29,065 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:34:29,065 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:34:29,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112798383] [2022-11-22 02:34:29,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:34:29,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:34:29,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:34:29,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:34:29,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:34:29,067 INFO L87 Difference]: Start difference. First operand 1617 states and 2164 transitions. Second operand has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:34:31,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:34:31,982 INFO L93 Difference]: Finished difference Result 2767 states and 3656 transitions. [2022-11-22 02:34:31,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:34:31,983 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 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 112 [2022-11-22 02:34:31,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:34:31,989 INFO L225 Difference]: With dead ends: 2767 [2022-11-22 02:34:31,989 INFO L226 Difference]: Without dead ends: 2645 [2022-11-22 02:34:31,991 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:34:31,991 INFO L413 NwaCegarLoop]: 866 mSDtfsCounter, 4066 mSDsluCounter, 2806 mSDsCounter, 0 mSdLazyCounter, 2996 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4066 SdHoareTripleChecker+Valid, 3672 SdHoareTripleChecker+Invalid, 3000 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2996 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-22 02:34:31,992 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4066 Valid, 3672 Invalid, 3000 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2996 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-22 02:34:31,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2645 states. [2022-11-22 02:34:32,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2645 to 1617. [2022-11-22 02:34:32,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1617 states, 1588 states have (on average 1.3620906801007557) internal successors, (2163), 1616 states have internal predecessors, (2163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:34:32,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1617 states to 1617 states and 2163 transitions. [2022-11-22 02:34:32,341 INFO L78 Accepts]: Start accepts. Automaton has 1617 states and 2163 transitions. Word has length 112 [2022-11-22 02:34:32,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:34:32,341 INFO L495 AbstractCegarLoop]: Abstraction has 1617 states and 2163 transitions. [2022-11-22 02:34:32,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:34:32,341 INFO L276 IsEmpty]: Start isEmpty. Operand 1617 states and 2163 transitions. [2022-11-22 02:34:32,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-11-22 02:34:32,344 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:34:32,344 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] [2022-11-22 02:34:32,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-22 02:34:32,344 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:34:32,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:34:32,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1767378958, now seen corresponding path program 1 times [2022-11-22 02:34:32,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:34:32,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448983020] [2022-11-22 02:34:32,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:34:32,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:34:32,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:34:33,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:34:33,024 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:34:33,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448983020] [2022-11-22 02:34:33,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448983020] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:34:33,025 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:34:33,025 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:34:33,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602056212] [2022-11-22 02:34:33,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:34:33,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:34:33,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:34:33,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:34:33,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:34:33,027 INFO L87 Difference]: Start difference. First operand 1617 states and 2163 transitions. Second operand has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:34:36,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:34:36,649 INFO L93 Difference]: Finished difference Result 2875 states and 3833 transitions. [2022-11-22 02:34:36,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-22 02:34:36,649 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 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 112 [2022-11-22 02:34:36,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:34:36,654 INFO L225 Difference]: With dead ends: 2875 [2022-11-22 02:34:36,655 INFO L226 Difference]: Without dead ends: 2717 [2022-11-22 02:34:36,656 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2022-11-22 02:34:36,657 INFO L413 NwaCegarLoop]: 894 mSDtfsCounter, 4705 mSDsluCounter, 3915 mSDsCounter, 0 mSdLazyCounter, 3721 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4705 SdHoareTripleChecker+Valid, 4809 SdHoareTripleChecker+Invalid, 3725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3721 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-22 02:34:36,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4705 Valid, 4809 Invalid, 3725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3721 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-11-22 02:34:36,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2717 states. [2022-11-22 02:34:37,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2717 to 1617. [2022-11-22 02:34:37,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1617 states, 1588 states have (on average 1.3614609571788414) internal successors, (2162), 1616 states have internal predecessors, (2162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:34:37,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1617 states to 1617 states and 2162 transitions. [2022-11-22 02:34:37,034 INFO L78 Accepts]: Start accepts. Automaton has 1617 states and 2162 transitions. Word has length 112 [2022-11-22 02:34:37,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:34:37,034 INFO L495 AbstractCegarLoop]: Abstraction has 1617 states and 2162 transitions. [2022-11-22 02:34:37,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:34:37,035 INFO L276 IsEmpty]: Start isEmpty. Operand 1617 states and 2162 transitions. [2022-11-22 02:34:37,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-11-22 02:34:37,036 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:34:37,037 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:34:37,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-22 02:34:37,037 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:34:37,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:34:37,038 INFO L85 PathProgramCache]: Analyzing trace with hash 949221365, now seen corresponding path program 1 times [2022-11-22 02:34:37,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:34:37,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273781503] [2022-11-22 02:34:37,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:34:37,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:34:37,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:34:37,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:34:37,585 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:34:37,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273781503] [2022-11-22 02:34:37,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273781503] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:34:37,585 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:34:37,585 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:34:37,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322723831] [2022-11-22 02:34:37,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:34:37,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:34:37,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:34:37,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:34:37,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:34:37,587 INFO L87 Difference]: Start difference. First operand 1617 states and 2162 transitions. Second operand has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:34:40,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:34:40,784 INFO L93 Difference]: Finished difference Result 2767 states and 3653 transitions. [2022-11-22 02:34:40,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:34:40,785 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 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 112 [2022-11-22 02:34:40,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:34:40,789 INFO L225 Difference]: With dead ends: 2767 [2022-11-22 02:34:40,789 INFO L226 Difference]: Without dead ends: 2645 [2022-11-22 02:34:40,790 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:34:40,790 INFO L413 NwaCegarLoop]: 866 mSDtfsCounter, 6139 mSDsluCounter, 2806 mSDsCounter, 0 mSdLazyCounter, 2988 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6139 SdHoareTripleChecker+Valid, 3672 SdHoareTripleChecker+Invalid, 2992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2988 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:34:40,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6139 Valid, 3672 Invalid, 2992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2988 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-22 02:34:40,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2645 states. [2022-11-22 02:34:41,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2645 to 1617. [2022-11-22 02:34:41,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1617 states, 1588 states have (on average 1.3608312342569269) internal successors, (2161), 1616 states have internal predecessors, (2161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:34:41,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1617 states to 1617 states and 2161 transitions. [2022-11-22 02:34:41,094 INFO L78 Accepts]: Start accepts. Automaton has 1617 states and 2161 transitions. Word has length 112 [2022-11-22 02:34:41,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:34:41,094 INFO L495 AbstractCegarLoop]: Abstraction has 1617 states and 2161 transitions. [2022-11-22 02:34:41,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:34:41,094 INFO L276 IsEmpty]: Start isEmpty. Operand 1617 states and 2161 transitions. [2022-11-22 02:34:41,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-11-22 02:34:41,096 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:34:41,096 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] [2022-11-22 02:34:41,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-22 02:34:41,097 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:34:41,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:34:41,097 INFO L85 PathProgramCache]: Analyzing trace with hash -639029042, now seen corresponding path program 1 times [2022-11-22 02:34:41,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:34:41,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358529852] [2022-11-22 02:34:41,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:34:41,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:34:41,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:34:41,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:34:41,732 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:34:41,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358529852] [2022-11-22 02:34:41,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358529852] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:34:41,733 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:34:41,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:34:41,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192534072] [2022-11-22 02:34:41,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:34:41,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:34:41,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:34:41,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:34:41,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:34:41,735 INFO L87 Difference]: Start difference. First operand 1617 states and 2161 transitions. Second operand has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:34:45,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:34:45,094 INFO L93 Difference]: Finished difference Result 2944 states and 3933 transitions. [2022-11-22 02:34:45,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:34:45,095 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 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 112 [2022-11-22 02:34:45,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:34:45,101 INFO L225 Difference]: With dead ends: 2944 [2022-11-22 02:34:45,101 INFO L226 Difference]: Without dead ends: 2723 [2022-11-22 02:34:45,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2022-11-22 02:34:45,103 INFO L413 NwaCegarLoop]: 1064 mSDtfsCounter, 5659 mSDsluCounter, 3392 mSDsCounter, 0 mSdLazyCounter, 3466 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5659 SdHoareTripleChecker+Valid, 4456 SdHoareTripleChecker+Invalid, 3470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:34:45,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5659 Valid, 4456 Invalid, 3470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3466 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-22 02:34:45,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2723 states. [2022-11-22 02:34:45,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2723 to 1617. [2022-11-22 02:34:45,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1617 states, 1588 states have (on average 1.3602015113350125) internal successors, (2160), 1616 states have internal predecessors, (2160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:34:45,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1617 states to 1617 states and 2160 transitions. [2022-11-22 02:34:45,535 INFO L78 Accepts]: Start accepts. Automaton has 1617 states and 2160 transitions. Word has length 112 [2022-11-22 02:34:45,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:34:45,535 INFO L495 AbstractCegarLoop]: Abstraction has 1617 states and 2160 transitions. [2022-11-22 02:34:45,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:34:45,535 INFO L276 IsEmpty]: Start isEmpty. Operand 1617 states and 2160 transitions. [2022-11-22 02:34:45,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-22 02:34:45,537 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:34:45,537 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] [2022-11-22 02:34:45,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-22 02:34:45,538 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:34:45,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:34:45,538 INFO L85 PathProgramCache]: Analyzing trace with hash -372995825, now seen corresponding path program 1 times [2022-11-22 02:34:45,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:34:45,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180470674] [2022-11-22 02:34:45,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:34:45,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:34:45,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:34:46,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:34:46,079 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:34:46,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180470674] [2022-11-22 02:34:46,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180470674] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:34:46,080 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:34:46,080 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:34:46,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406678229] [2022-11-22 02:34:46,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:34:46,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:34:46,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:34:46,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:34:46,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:34:46,082 INFO L87 Difference]: Start difference. First operand 1617 states and 2160 transitions. Second operand has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:34:49,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:34:49,381 INFO L93 Difference]: Finished difference Result 2854 states and 3783 transitions. [2022-11-22 02:34:49,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:34:49,381 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2022-11-22 02:34:49,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:34:49,385 INFO L225 Difference]: With dead ends: 2854 [2022-11-22 02:34:49,386 INFO L226 Difference]: Without dead ends: 2693 [2022-11-22 02:34:49,387 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:34:49,387 INFO L413 NwaCegarLoop]: 910 mSDtfsCounter, 4016 mSDsluCounter, 2979 mSDsCounter, 0 mSdLazyCounter, 3098 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4016 SdHoareTripleChecker+Valid, 3889 SdHoareTripleChecker+Invalid, 3102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3098 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:34:49,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4016 Valid, 3889 Invalid, 3102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3098 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-22 02:34:49,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2693 states. [2022-11-22 02:34:49,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2693 to 1617. [2022-11-22 02:34:49,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1617 states, 1588 states have (on average 1.358942065491184) internal successors, (2158), 1616 states have internal predecessors, (2158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:34:49,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1617 states to 1617 states and 2158 transitions. [2022-11-22 02:34:49,803 INFO L78 Accepts]: Start accepts. Automaton has 1617 states and 2158 transitions. Word has length 113 [2022-11-22 02:34:49,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:34:49,804 INFO L495 AbstractCegarLoop]: Abstraction has 1617 states and 2158 transitions. [2022-11-22 02:34:49,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:34:49,804 INFO L276 IsEmpty]: Start isEmpty. Operand 1617 states and 2158 transitions. [2022-11-22 02:34:49,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-22 02:34:49,806 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:34:49,806 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] [2022-11-22 02:34:49,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-22 02:34:49,806 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:34:49,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:34:49,806 INFO L85 PathProgramCache]: Analyzing trace with hash -289332849, now seen corresponding path program 1 times [2022-11-22 02:34:49,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:34:49,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32914759] [2022-11-22 02:34:49,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:34:49,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:34:49,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:34:50,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:34:50,311 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:34:50,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32914759] [2022-11-22 02:34:50,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32914759] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:34:50,312 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:34:50,312 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:34:50,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840281858] [2022-11-22 02:34:50,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:34:50,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:34:50,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:34:50,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:34:50,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:34:50,315 INFO L87 Difference]: Start difference. First operand 1617 states and 2158 transitions. Second operand has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:34:53,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:34:53,564 INFO L93 Difference]: Finished difference Result 2778 states and 3661 transitions. [2022-11-22 02:34:53,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:34:53,564 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2022-11-22 02:34:53,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:34:53,568 INFO L225 Difference]: With dead ends: 2778 [2022-11-22 02:34:53,568 INFO L226 Difference]: Without dead ends: 2645 [2022-11-22 02:34:53,569 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:34:53,570 INFO L413 NwaCegarLoop]: 894 mSDtfsCounter, 6015 mSDsluCounter, 2889 mSDsCounter, 0 mSdLazyCounter, 3033 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6015 SdHoareTripleChecker+Valid, 3783 SdHoareTripleChecker+Invalid, 3037 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3033 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:34:53,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6015 Valid, 3783 Invalid, 3037 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3033 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-22 02:34:53,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2645 states. [2022-11-22 02:34:54,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2645 to 1617. [2022-11-22 02:34:54,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1617 states, 1588 states have (on average 1.3576826196473553) internal successors, (2156), 1616 states have internal predecessors, (2156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:34:54,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1617 states to 1617 states and 2156 transitions. [2022-11-22 02:34:54,009 INFO L78 Accepts]: Start accepts. Automaton has 1617 states and 2156 transitions. Word has length 113 [2022-11-22 02:34:54,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:34:54,009 INFO L495 AbstractCegarLoop]: Abstraction has 1617 states and 2156 transitions. [2022-11-22 02:34:54,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:34:54,010 INFO L276 IsEmpty]: Start isEmpty. Operand 1617 states and 2156 transitions. [2022-11-22 02:34:54,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-22 02:34:54,013 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:34:54,013 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] [2022-11-22 02:34:54,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-22 02:34:54,013 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:34:54,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:34:54,014 INFO L85 PathProgramCache]: Analyzing trace with hash 415339855, now seen corresponding path program 1 times [2022-11-22 02:34:54,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:34:54,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750055381] [2022-11-22 02:34:54,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:34:54,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:34:54,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:34:54,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:34:54,513 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:34:54,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750055381] [2022-11-22 02:34:54,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750055381] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:34:54,513 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:34:54,513 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:34:54,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77552827] [2022-11-22 02:34:54,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:34:54,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:34:54,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:34:54,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:34:54,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:34:54,516 INFO L87 Difference]: Start difference. First operand 1617 states and 2156 transitions. Second operand has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:34:57,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:34:57,005 INFO L93 Difference]: Finished difference Result 2383 states and 3178 transitions. [2022-11-22 02:34:57,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-22 02:34:57,006 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2022-11-22 02:34:57,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:34:57,008 INFO L225 Difference]: With dead ends: 2383 [2022-11-22 02:34:57,009 INFO L226 Difference]: Without dead ends: 1737 [2022-11-22 02:34:57,010 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2022-11-22 02:34:57,011 INFO L413 NwaCegarLoop]: 887 mSDtfsCounter, 4593 mSDsluCounter, 2585 mSDsCounter, 0 mSdLazyCounter, 2736 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4593 SdHoareTripleChecker+Valid, 3472 SdHoareTripleChecker+Invalid, 2741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 2736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-22 02:34:57,011 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4593 Valid, 3472 Invalid, 2741 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 2736 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-22 02:34:57,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1737 states. [2022-11-22 02:34:57,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1737 to 1617. [2022-11-22 02:34:57,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1617 states, 1588 states have (on average 1.3564231738035264) internal successors, (2154), 1616 states have internal predecessors, (2154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:34:57,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1617 states to 1617 states and 2154 transitions. [2022-11-22 02:34:57,324 INFO L78 Accepts]: Start accepts. Automaton has 1617 states and 2154 transitions. Word has length 113 [2022-11-22 02:34:57,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:34:57,325 INFO L495 AbstractCegarLoop]: Abstraction has 1617 states and 2154 transitions. [2022-11-22 02:34:57,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:34:57,325 INFO L276 IsEmpty]: Start isEmpty. Operand 1617 states and 2154 transitions. [2022-11-22 02:34:57,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-22 02:34:57,327 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:34:57,327 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] [2022-11-22 02:34:57,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-22 02:34:57,327 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:34:57,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:34:57,328 INFO L85 PathProgramCache]: Analyzing trace with hash 137094735, now seen corresponding path program 1 times [2022-11-22 02:34:57,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:34:57,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712736133] [2022-11-22 02:34:57,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:34:57,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:34:57,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:34:57,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:34:57,795 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:34:57,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712736133] [2022-11-22 02:34:57,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712736133] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:34:57,796 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:34:57,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:34:57,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625342406] [2022-11-22 02:34:57,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:34:57,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:34:57,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:34:57,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:34:57,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:34:57,798 INFO L87 Difference]: Start difference. First operand 1617 states and 2154 transitions. Second operand has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:35:01,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:35:01,115 INFO L93 Difference]: Finished difference Result 2771 states and 3648 transitions. [2022-11-22 02:35:01,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:35:01,116 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2022-11-22 02:35:01,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:35:01,119 INFO L225 Difference]: With dead ends: 2771 [2022-11-22 02:35:01,119 INFO L226 Difference]: Without dead ends: 2645 [2022-11-22 02:35:01,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:35:01,120 INFO L413 NwaCegarLoop]: 894 mSDtfsCounter, 6039 mSDsluCounter, 2884 mSDsCounter, 0 mSdLazyCounter, 3029 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6039 SdHoareTripleChecker+Valid, 3778 SdHoareTripleChecker+Invalid, 3033 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3029 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:35:01,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6039 Valid, 3778 Invalid, 3033 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3029 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-22 02:35:01,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2645 states. [2022-11-22 02:35:01,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2645 to 1617. [2022-11-22 02:35:01,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1617 states, 1588 states have (on average 1.355793450881612) internal successors, (2153), 1616 states have internal predecessors, (2153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:35:01,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1617 states to 1617 states and 2153 transitions. [2022-11-22 02:35:01,489 INFO L78 Accepts]: Start accepts. Automaton has 1617 states and 2153 transitions. Word has length 113 [2022-11-22 02:35:01,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:35:01,489 INFO L495 AbstractCegarLoop]: Abstraction has 1617 states and 2153 transitions. [2022-11-22 02:35:01,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:35:01,490 INFO L276 IsEmpty]: Start isEmpty. Operand 1617 states and 2153 transitions. [2022-11-22 02:35:01,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-22 02:35:01,491 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:35:01,491 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] [2022-11-22 02:35:01,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-22 02:35:01,492 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:35:01,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:35:01,492 INFO L85 PathProgramCache]: Analyzing trace with hash 1768415631, now seen corresponding path program 1 times [2022-11-22 02:35:01,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:35:01,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091438689] [2022-11-22 02:35:01,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:35:01,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:35:01,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:35:01,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:35:01,996 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:35:01,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091438689] [2022-11-22 02:35:01,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091438689] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:35:01,997 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:35:01,997 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:35:01,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080695933] [2022-11-22 02:35:01,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:35:01,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:35:01,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:35:01,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:35:01,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:35:01,999 INFO L87 Difference]: Start difference. First operand 1617 states and 2153 transitions. Second operand has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:35:05,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:35:05,356 INFO L93 Difference]: Finished difference Result 2771 states and 3646 transitions. [2022-11-22 02:35:05,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:35:05,356 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2022-11-22 02:35:05,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:35:05,359 INFO L225 Difference]: With dead ends: 2771 [2022-11-22 02:35:05,359 INFO L226 Difference]: Without dead ends: 2645 [2022-11-22 02:35:05,360 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:35:05,361 INFO L413 NwaCegarLoop]: 894 mSDtfsCounter, 6004 mSDsluCounter, 2887 mSDsCounter, 0 mSdLazyCounter, 3022 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6004 SdHoareTripleChecker+Valid, 3781 SdHoareTripleChecker+Invalid, 3026 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3022 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:35:05,361 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6004 Valid, 3781 Invalid, 3026 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3022 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-22 02:35:05,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2645 states. [2022-11-22 02:35:05,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2645 to 1617. [2022-11-22 02:35:05,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1617 states, 1588 states have (on average 1.3551637279596978) internal successors, (2152), 1616 states have internal predecessors, (2152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:35:05,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1617 states to 1617 states and 2152 transitions. [2022-11-22 02:35:05,778 INFO L78 Accepts]: Start accepts. Automaton has 1617 states and 2152 transitions. Word has length 113 [2022-11-22 02:35:05,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:35:05,778 INFO L495 AbstractCegarLoop]: Abstraction has 1617 states and 2152 transitions. [2022-11-22 02:35:05,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:35:05,779 INFO L276 IsEmpty]: Start isEmpty. Operand 1617 states and 2152 transitions. [2022-11-22 02:35:05,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-22 02:35:05,781 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:35:05,781 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] [2022-11-22 02:35:05,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-22 02:35:05,781 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:35:05,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:35:05,782 INFO L85 PathProgramCache]: Analyzing trace with hash -1519420945, now seen corresponding path program 1 times [2022-11-22 02:35:05,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:35:05,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598219790] [2022-11-22 02:35:05,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:35:05,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:35:05,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:35:06,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:35:06,236 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:35:06,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598219790] [2022-11-22 02:35:06,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598219790] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:35:06,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:35:06,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:35:06,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974480578] [2022-11-22 02:35:06,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:35:06,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:35:06,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:35:06,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:35:06,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:35:06,238 INFO L87 Difference]: Start difference. First operand 1617 states and 2152 transitions. Second operand has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:35:09,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:35:09,572 INFO L93 Difference]: Finished difference Result 2843 states and 3757 transitions. [2022-11-22 02:35:09,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:35:09,573 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2022-11-22 02:35:09,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:35:09,575 INFO L225 Difference]: With dead ends: 2843 [2022-11-22 02:35:09,576 INFO L226 Difference]: Without dead ends: 2693 [2022-11-22 02:35:09,576 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:35:09,577 INFO L413 NwaCegarLoop]: 910 mSDtfsCounter, 6098 mSDsluCounter, 2975 mSDsCounter, 0 mSdLazyCounter, 3077 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6098 SdHoareTripleChecker+Valid, 3885 SdHoareTripleChecker+Invalid, 3081 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3077 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-22 02:35:09,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6098 Valid, 3885 Invalid, 3081 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3077 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-22 02:35:09,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2693 states. [2022-11-22 02:35:09,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2693 to 1617. [2022-11-22 02:35:09,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1617 states, 1588 states have (on average 1.3545340050377834) internal successors, (2151), 1616 states have internal predecessors, (2151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:35:09,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1617 states to 1617 states and 2151 transitions. [2022-11-22 02:35:09,934 INFO L78 Accepts]: Start accepts. Automaton has 1617 states and 2151 transitions. Word has length 113 [2022-11-22 02:35:09,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:35:09,935 INFO L495 AbstractCegarLoop]: Abstraction has 1617 states and 2151 transitions. [2022-11-22 02:35:09,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:35:09,935 INFO L276 IsEmpty]: Start isEmpty. Operand 1617 states and 2151 transitions. [2022-11-22 02:35:09,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-22 02:35:09,936 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:35:09,937 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] [2022-11-22 02:35:09,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-22 02:35:09,937 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:35:09,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:35:09,937 INFO L85 PathProgramCache]: Analyzing trace with hash 1339566735, now seen corresponding path program 1 times [2022-11-22 02:35:09,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:35:09,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952436077] [2022-11-22 02:35:09,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:35:09,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:35:10,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:35:10,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:35:10,424 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:35:10,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952436077] [2022-11-22 02:35:10,424 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952436077] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:35:10,424 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:35:10,425 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:35:10,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543904738] [2022-11-22 02:35:10,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:35:10,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:35:10,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:35:10,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:35:10,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:35:10,427 INFO L87 Difference]: Start difference. First operand 1617 states and 2151 transitions. Second operand has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:35:13,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:35:13,882 INFO L93 Difference]: Finished difference Result 2771 states and 3644 transitions. [2022-11-22 02:35:13,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:35:13,890 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2022-11-22 02:35:13,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:35:13,893 INFO L225 Difference]: With dead ends: 2771 [2022-11-22 02:35:13,893 INFO L226 Difference]: Without dead ends: 2645 [2022-11-22 02:35:13,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:35:13,894 INFO L413 NwaCegarLoop]: 924 mSDtfsCounter, 5933 mSDsluCounter, 2973 mSDsCounter, 0 mSdLazyCounter, 3080 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5933 SdHoareTripleChecker+Valid, 3897 SdHoareTripleChecker+Invalid, 3084 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3080 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:35:13,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5933 Valid, 3897 Invalid, 3084 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3080 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-22 02:35:13,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2645 states. [2022-11-22 02:35:14,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2645 to 1617. [2022-11-22 02:35:14,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1617 states, 1588 states have (on average 1.353904282115869) internal successors, (2150), 1616 states have internal predecessors, (2150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:35:14,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1617 states to 1617 states and 2150 transitions. [2022-11-22 02:35:14,317 INFO L78 Accepts]: Start accepts. Automaton has 1617 states and 2150 transitions. Word has length 113 [2022-11-22 02:35:14,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:35:14,317 INFO L495 AbstractCegarLoop]: Abstraction has 1617 states and 2150 transitions. [2022-11-22 02:35:14,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:35:14,317 INFO L276 IsEmpty]: Start isEmpty. Operand 1617 states and 2150 transitions. [2022-11-22 02:35:14,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-22 02:35:14,319 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:35:14,319 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] [2022-11-22 02:35:14,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-22 02:35:14,319 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:35:14,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:35:14,320 INFO L85 PathProgramCache]: Analyzing trace with hash 386104400, now seen corresponding path program 1 times [2022-11-22 02:35:14,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:35:14,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610864238] [2022-11-22 02:35:14,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:35:14,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:35:14,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:35:14,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:35:14,767 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:35:14,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610864238] [2022-11-22 02:35:14,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610864238] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:35:14,767 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:35:14,767 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:35:14,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700514681] [2022-11-22 02:35:14,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:35:14,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:35:14,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:35:14,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:35:14,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:35:14,768 INFO L87 Difference]: Start difference. First operand 1617 states and 2150 transitions. Second operand has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:35:18,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:35:18,057 INFO L93 Difference]: Finished difference Result 2856 states and 3773 transitions. [2022-11-22 02:35:18,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:35:18,058 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2022-11-22 02:35:18,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:35:18,060 INFO L225 Difference]: With dead ends: 2856 [2022-11-22 02:35:18,060 INFO L226 Difference]: Without dead ends: 2693 [2022-11-22 02:35:18,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:35:18,061 INFO L413 NwaCegarLoop]: 878 mSDtfsCounter, 4097 mSDsluCounter, 2916 mSDsCounter, 0 mSdLazyCounter, 2921 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4097 SdHoareTripleChecker+Valid, 3794 SdHoareTripleChecker+Invalid, 2926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 2921 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-22 02:35:18,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4097 Valid, 3794 Invalid, 2926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 2921 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-22 02:35:18,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2693 states. [2022-11-22 02:35:18,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2693 to 1617. [2022-11-22 02:35:18,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1617 states, 1588 states have (on average 1.3526448362720402) internal successors, (2148), 1616 states have internal predecessors, (2148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:35:18,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1617 states to 1617 states and 2148 transitions. [2022-11-22 02:35:18,419 INFO L78 Accepts]: Start accepts. Automaton has 1617 states and 2148 transitions. Word has length 114 [2022-11-22 02:35:18,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:35:18,419 INFO L495 AbstractCegarLoop]: Abstraction has 1617 states and 2148 transitions. [2022-11-22 02:35:18,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:35:18,420 INFO L276 IsEmpty]: Start isEmpty. Operand 1617 states and 2148 transitions. [2022-11-22 02:35:18,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-22 02:35:18,421 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:35:18,421 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] [2022-11-22 02:35:18,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-22 02:35:18,422 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:35:18,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:35:18,422 INFO L85 PathProgramCache]: Analyzing trace with hash -1228824528, now seen corresponding path program 1 times [2022-11-22 02:35:18,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:35:18,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898546953] [2022-11-22 02:35:18,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:35:18,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:35:18,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:35:18,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:35:18,920 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:35:18,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898546953] [2022-11-22 02:35:18,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898546953] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:35:18,920 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:35:18,920 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:35:18,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937752099] [2022-11-22 02:35:18,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:35:18,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:35:18,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:35:18,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:35:18,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:35:18,922 INFO L87 Difference]: Start difference. First operand 1617 states and 2148 transitions. Second operand has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:35:22,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:35:22,594 INFO L93 Difference]: Finished difference Result 2777 states and 3649 transitions. [2022-11-22 02:35:22,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:35:22,594 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2022-11-22 02:35:22,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:35:22,597 INFO L225 Difference]: With dead ends: 2777 [2022-11-22 02:35:22,597 INFO L226 Difference]: Without dead ends: 2645 [2022-11-22 02:35:22,598 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:35:22,598 INFO L413 NwaCegarLoop]: 945 mSDtfsCounter, 5816 mSDsluCounter, 3043 mSDsCounter, 0 mSdLazyCounter, 3126 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5816 SdHoareTripleChecker+Valid, 3988 SdHoareTripleChecker+Invalid, 3130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:35:22,599 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5816 Valid, 3988 Invalid, 3130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3126 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-22 02:35:22,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2645 states. [2022-11-22 02:35:22,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2645 to 1617. [2022-11-22 02:35:22,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1617 states, 1588 states have (on average 1.3513853904282116) internal successors, (2146), 1616 states have internal predecessors, (2146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:35:22,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1617 states to 1617 states and 2146 transitions. [2022-11-22 02:35:22,969 INFO L78 Accepts]: Start accepts. Automaton has 1617 states and 2146 transitions. Word has length 114 [2022-11-22 02:35:22,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:35:22,969 INFO L495 AbstractCegarLoop]: Abstraction has 1617 states and 2146 transitions. [2022-11-22 02:35:22,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:35:22,970 INFO L276 IsEmpty]: Start isEmpty. Operand 1617 states and 2146 transitions. [2022-11-22 02:35:22,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-22 02:35:22,973 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:35:22,973 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] [2022-11-22 02:35:22,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-22 02:35:22,973 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:35:22,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:35:22,974 INFO L85 PathProgramCache]: Analyzing trace with hash 880027216, now seen corresponding path program 1 times [2022-11-22 02:35:22,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:35:22,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048346569] [2022-11-22 02:35:22,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:35:22,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:35:23,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:35:23,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:35:23,430 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:35:23,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048346569] [2022-11-22 02:35:23,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048346569] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:35:23,431 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:35:23,431 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:35:23,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78935439] [2022-11-22 02:35:23,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:35:23,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:35:23,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:35:23,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:35:23,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:35:23,433 INFO L87 Difference]: Start difference. First operand 1617 states and 2146 transitions. Second operand has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:35:27,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:35:27,011 INFO L93 Difference]: Finished difference Result 2675 states and 3480 transitions. [2022-11-22 02:35:27,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:35:27,012 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2022-11-22 02:35:27,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:35:27,014 INFO L225 Difference]: With dead ends: 2675 [2022-11-22 02:35:27,014 INFO L226 Difference]: Without dead ends: 2557 [2022-11-22 02:35:27,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:35:27,016 INFO L413 NwaCegarLoop]: 925 mSDtfsCounter, 4037 mSDsluCounter, 2821 mSDsCounter, 0 mSdLazyCounter, 3107 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4037 SdHoareTripleChecker+Valid, 3746 SdHoareTripleChecker+Invalid, 3111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:35:27,016 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4037 Valid, 3746 Invalid, 3111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3107 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-22 02:35:27,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2557 states. [2022-11-22 02:35:27,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2557 to 1617. [2022-11-22 02:35:27,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1617 states, 1588 states have (on average 1.350125944584383) internal successors, (2144), 1616 states have internal predecessors, (2144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:35:27,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1617 states to 1617 states and 2144 transitions. [2022-11-22 02:35:27,513 INFO L78 Accepts]: Start accepts. Automaton has 1617 states and 2144 transitions. Word has length 114 [2022-11-22 02:35:27,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:35:27,513 INFO L495 AbstractCegarLoop]: Abstraction has 1617 states and 2144 transitions. [2022-11-22 02:35:27,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:35:27,514 INFO L276 IsEmpty]: Start isEmpty. Operand 1617 states and 2144 transitions. [2022-11-22 02:35:27,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-22 02:35:27,517 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:35:27,517 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] [2022-11-22 02:35:27,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-22 02:35:27,517 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:35:27,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:35:27,518 INFO L85 PathProgramCache]: Analyzing trace with hash -1160312895, now seen corresponding path program 1 times [2022-11-22 02:35:27,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:35:27,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317477350] [2022-11-22 02:35:27,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:35:27,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:35:27,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:35:28,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:35:28,727 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:35:28,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317477350] [2022-11-22 02:35:28,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317477350] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:35:28,727 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:35:28,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-22 02:35:28,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869431914] [2022-11-22 02:35:28,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:35:28,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-22 02:35:28,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:35:28,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-22 02:35:28,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-22 02:35:28,729 INFO L87 Difference]: Start difference. First operand 1617 states and 2144 transitions. Second operand has 12 states, 12 states have (on average 9.5) internal successors, (114), 11 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:35:31,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:35:31,892 INFO L93 Difference]: Finished difference Result 3071 states and 4051 transitions. [2022-11-22 02:35:31,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-22 02:35:31,893 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.5) internal successors, (114), 11 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2022-11-22 02:35:31,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:35:31,896 INFO L225 Difference]: With dead ends: 3071 [2022-11-22 02:35:31,896 INFO L226 Difference]: Without dead ends: 2929 [2022-11-22 02:35:31,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-11-22 02:35:31,897 INFO L413 NwaCegarLoop]: 1562 mSDtfsCounter, 7518 mSDsluCounter, 6761 mSDsCounter, 0 mSdLazyCounter, 1149 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7518 SdHoareTripleChecker+Valid, 8323 SdHoareTripleChecker+Invalid, 1150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:35:31,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7518 Valid, 8323 Invalid, 1150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1149 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-22 02:35:31,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2929 states. [2022-11-22 02:35:32,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2929 to 1587. [2022-11-22 02:35:32,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1587 states, 1558 states have (on average 1.3478818998716302) internal successors, (2100), 1586 states have internal predecessors, (2100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:35:32,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1587 states to 1587 states and 2100 transitions. [2022-11-22 02:35:32,438 INFO L78 Accepts]: Start accepts. Automaton has 1587 states and 2100 transitions. Word has length 114 [2022-11-22 02:35:32,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:35:32,438 INFO L495 AbstractCegarLoop]: Abstraction has 1587 states and 2100 transitions. [2022-11-22 02:35:32,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.5) internal successors, (114), 11 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:35:32,439 INFO L276 IsEmpty]: Start isEmpty. Operand 1587 states and 2100 transitions. [2022-11-22 02:35:32,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-22 02:35:32,442 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:35:32,442 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:35:32,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-22 02:35:32,443 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:35:32,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:35:32,443 INFO L85 PathProgramCache]: Analyzing trace with hash 449462320, now seen corresponding path program 1 times [2022-11-22 02:35:32,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:35:32,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114074702] [2022-11-22 02:35:32,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:35:32,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:35:32,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:35:32,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:35:32,969 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:35:32,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114074702] [2022-11-22 02:35:32,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114074702] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:35:32,970 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:35:32,970 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:35:32,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046132003] [2022-11-22 02:35:32,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:35:32,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:35:32,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:35:32,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:35:32,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:35:32,971 INFO L87 Difference]: Start difference. First operand 1587 states and 2100 transitions. Second operand has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:35:36,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:35:36,940 INFO L93 Difference]: Finished difference Result 2747 states and 3599 transitions. [2022-11-22 02:35:36,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:35:36,941 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2022-11-22 02:35:36,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:35:36,944 INFO L225 Difference]: With dead ends: 2747 [2022-11-22 02:35:36,944 INFO L226 Difference]: Without dead ends: 2615 [2022-11-22 02:35:36,945 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:35:36,946 INFO L413 NwaCegarLoop]: 934 mSDtfsCounter, 3824 mSDsluCounter, 3010 mSDsCounter, 0 mSdLazyCounter, 3074 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3824 SdHoareTripleChecker+Valid, 3944 SdHoareTripleChecker+Invalid, 3078 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3074 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:35:36,946 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3824 Valid, 3944 Invalid, 3078 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 3074 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-22 02:35:36,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2615 states. [2022-11-22 02:35:37,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2615 to 1587. [2022-11-22 02:35:37,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1587 states, 1558 states have (on average 1.3465982028241335) internal successors, (2098), 1586 states have internal predecessors, (2098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:35:37,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1587 states to 1587 states and 2098 transitions. [2022-11-22 02:35:37,415 INFO L78 Accepts]: Start accepts. Automaton has 1587 states and 2098 transitions. Word has length 114 [2022-11-22 02:35:37,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:35:37,415 INFO L495 AbstractCegarLoop]: Abstraction has 1587 states and 2098 transitions. [2022-11-22 02:35:37,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:35:37,415 INFO L276 IsEmpty]: Start isEmpty. Operand 1587 states and 2098 transitions. [2022-11-22 02:35:37,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-22 02:35:37,417 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:35:37,417 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] [2022-11-22 02:35:37,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-22 02:35:37,418 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:35:37,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:35:37,418 INFO L85 PathProgramCache]: Analyzing trace with hash 2064391248, now seen corresponding path program 1 times [2022-11-22 02:35:37,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:35:37,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318304873] [2022-11-22 02:35:37,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:35:37,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:35:37,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:35:37,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:35:37,866 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:35:37,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318304873] [2022-11-22 02:35:37,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318304873] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:35:37,867 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:35:37,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:35:37,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712678319] [2022-11-22 02:35:37,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:35:37,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:35:37,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:35:37,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:35:37,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:35:37,869 INFO L87 Difference]: Start difference. First operand 1587 states and 2098 transitions. Second operand has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:35:41,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:35:41,696 INFO L93 Difference]: Finished difference Result 2826 states and 3717 transitions. [2022-11-22 02:35:41,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:35:41,697 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2022-11-22 02:35:41,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:35:41,700 INFO L225 Difference]: With dead ends: 2826 [2022-11-22 02:35:41,700 INFO L226 Difference]: Without dead ends: 2663 [2022-11-22 02:35:41,701 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:35:41,702 INFO L413 NwaCegarLoop]: 899 mSDtfsCounter, 3850 mSDsluCounter, 2959 mSDsCounter, 0 mSdLazyCounter, 3001 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3850 SdHoareTripleChecker+Valid, 3858 SdHoareTripleChecker+Invalid, 3005 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3001 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:35:41,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3850 Valid, 3858 Invalid, 3005 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3001 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-22 02:35:41,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2663 states. [2022-11-22 02:35:42,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2663 to 1587. [2022-11-22 02:35:42,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1587 states, 1558 states have (on average 1.3453145057766367) internal successors, (2096), 1586 states have internal predecessors, (2096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:35:42,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1587 states to 1587 states and 2096 transitions. [2022-11-22 02:35:42,194 INFO L78 Accepts]: Start accepts. Automaton has 1587 states and 2096 transitions. Word has length 114 [2022-11-22 02:35:42,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:35:42,194 INFO L495 AbstractCegarLoop]: Abstraction has 1587 states and 2096 transitions. [2022-11-22 02:35:42,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:35:42,195 INFO L276 IsEmpty]: Start isEmpty. Operand 1587 states and 2096 transitions. [2022-11-22 02:35:42,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-22 02:35:42,197 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:35:42,197 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] [2022-11-22 02:35:42,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-11-22 02:35:42,198 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:35:42,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:35:42,198 INFO L85 PathProgramCache]: Analyzing trace with hash 847451952, now seen corresponding path program 1 times [2022-11-22 02:35:42,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:35:42,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403564474] [2022-11-22 02:35:42,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:35:42,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:35:42,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:35:42,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:35:42,688 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:35:42,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403564474] [2022-11-22 02:35:42,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403564474] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:35:42,688 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:35:42,688 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:35:42,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793098130] [2022-11-22 02:35:42,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:35:42,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:35:42,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:35:42,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:35:42,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:35:42,690 INFO L87 Difference]: Start difference. First operand 1587 states and 2096 transitions. Second operand has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:35:46,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:35:46,889 INFO L93 Difference]: Finished difference Result 3034 states and 4015 transitions. [2022-11-22 02:35:46,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:35:46,890 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2022-11-22 02:35:46,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:35:46,893 INFO L225 Difference]: With dead ends: 3034 [2022-11-22 02:35:46,893 INFO L226 Difference]: Without dead ends: 2693 [2022-11-22 02:35:46,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2022-11-22 02:35:46,895 INFO L413 NwaCegarLoop]: 1316 mSDtfsCounter, 4733 mSDsluCounter, 4105 mSDsCounter, 0 mSdLazyCounter, 4013 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4733 SdHoareTripleChecker+Valid, 5421 SdHoareTripleChecker+Invalid, 4016 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4013 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-22 02:35:46,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4733 Valid, 5421 Invalid, 4016 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4013 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-22 02:35:46,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2693 states. [2022-11-22 02:35:47,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2693 to 1587. [2022-11-22 02:35:47,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1587 states, 1558 states have (on average 1.34403080872914) internal successors, (2094), 1586 states have internal predecessors, (2094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:35:47,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1587 states to 1587 states and 2094 transitions. [2022-11-22 02:35:47,406 INFO L78 Accepts]: Start accepts. Automaton has 1587 states and 2094 transitions. Word has length 114 [2022-11-22 02:35:47,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:35:47,407 INFO L495 AbstractCegarLoop]: Abstraction has 1587 states and 2094 transitions. [2022-11-22 02:35:47,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:35:47,407 INFO L276 IsEmpty]: Start isEmpty. Operand 1587 states and 2094 transitions. [2022-11-22 02:35:47,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-22 02:35:47,409 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:35:47,409 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] [2022-11-22 02:35:47,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-11-22 02:35:47,409 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:35:47,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:35:47,410 INFO L85 PathProgramCache]: Analyzing trace with hash 186979856, now seen corresponding path program 1 times [2022-11-22 02:35:47,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:35:47,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248446992] [2022-11-22 02:35:47,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:35:47,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:35:47,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:35:47,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:35:47,782 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:35:47,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248446992] [2022-11-22 02:35:47,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248446992] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:35:47,783 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:35:47,783 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:35:47,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363556334] [2022-11-22 02:35:47,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:35:47,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:35:47,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:35:47,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:35:47,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:35:47,786 INFO L87 Difference]: Start difference. First operand 1587 states and 2094 transitions. Second operand has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:35:51,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:35:51,487 INFO L93 Difference]: Finished difference Result 2804 states and 3684 transitions. [2022-11-22 02:35:51,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:35:51,488 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2022-11-22 02:35:51,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:35:51,491 INFO L225 Difference]: With dead ends: 2804 [2022-11-22 02:35:51,491 INFO L226 Difference]: Without dead ends: 2663 [2022-11-22 02:35:51,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:35:51,492 INFO L413 NwaCegarLoop]: 859 mSDtfsCounter, 3976 mSDsluCounter, 2873 mSDsCounter, 0 mSdLazyCounter, 2856 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3976 SdHoareTripleChecker+Valid, 3732 SdHoareTripleChecker+Invalid, 2861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 2856 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-22 02:35:51,492 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3976 Valid, 3732 Invalid, 2861 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 2856 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-22 02:35:51,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2663 states. [2022-11-22 02:35:52,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2663 to 1587. [2022-11-22 02:35:52,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1587 states, 1558 states have (on average 1.3433889602053914) internal successors, (2093), 1586 states have internal predecessors, (2093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:35:52,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1587 states to 1587 states and 2093 transitions. [2022-11-22 02:35:52,279 INFO L78 Accepts]: Start accepts. Automaton has 1587 states and 2093 transitions. Word has length 114 [2022-11-22 02:35:52,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:35:52,280 INFO L495 AbstractCegarLoop]: Abstraction has 1587 states and 2093 transitions. [2022-11-22 02:35:52,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:35:52,280 INFO L276 IsEmpty]: Start isEmpty. Operand 1587 states and 2093 transitions. [2022-11-22 02:35:52,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-22 02:35:52,282 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:35:52,283 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] [2022-11-22 02:35:52,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-11-22 02:35:52,283 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:35:52,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:35:52,283 INFO L85 PathProgramCache]: Analyzing trace with hash -1410743600, now seen corresponding path program 1 times [2022-11-22 02:35:52,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:35:52,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069877671] [2022-11-22 02:35:52,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:35:52,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:35:52,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:35:52,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:35:52,620 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:35:52,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069877671] [2022-11-22 02:35:52,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069877671] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:35:52,621 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:35:52,621 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:35:52,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492176988] [2022-11-22 02:35:52,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:35:52,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:35:52,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:35:52,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:35:52,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:35:52,623 INFO L87 Difference]: Start difference. First operand 1587 states and 2093 transitions. Second operand has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:35:56,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:35:56,509 INFO L93 Difference]: Finished difference Result 2737 states and 3579 transitions. [2022-11-22 02:35:56,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:35:56,510 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2022-11-22 02:35:56,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:35:56,513 INFO L225 Difference]: With dead ends: 2737 [2022-11-22 02:35:56,513 INFO L226 Difference]: Without dead ends: 2615 [2022-11-22 02:35:56,514 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:35:56,514 INFO L413 NwaCegarLoop]: 941 mSDtfsCounter, 5779 mSDsluCounter, 3065 mSDsCounter, 0 mSdLazyCounter, 3057 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5779 SdHoareTripleChecker+Valid, 4006 SdHoareTripleChecker+Invalid, 3062 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 3057 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-22 02:35:56,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5779 Valid, 4006 Invalid, 3062 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 3057 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-22 02:35:56,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2615 states. [2022-11-22 02:35:57,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2615 to 1587. [2022-11-22 02:35:57,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1587 states, 1558 states have (on average 1.3427471116816432) internal successors, (2092), 1586 states have internal predecessors, (2092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:35:57,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1587 states to 1587 states and 2092 transitions. [2022-11-22 02:35:57,133 INFO L78 Accepts]: Start accepts. Automaton has 1587 states and 2092 transitions. Word has length 114 [2022-11-22 02:35:57,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:35:57,134 INFO L495 AbstractCegarLoop]: Abstraction has 1587 states and 2092 transitions. [2022-11-22 02:35:57,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:35:57,134 INFO L276 IsEmpty]: Start isEmpty. Operand 1587 states and 2092 transitions. [2022-11-22 02:35:57,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-22 02:35:57,136 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:35:57,136 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] [2022-11-22 02:35:57,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-11-22 02:35:57,137 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:35:57,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:35:57,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1848024214, now seen corresponding path program 1 times [2022-11-22 02:35:57,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:35:57,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3103060] [2022-11-22 02:35:57,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:35:57,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:35:57,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:35:57,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:35:57,618 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:35:57,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3103060] [2022-11-22 02:35:57,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3103060] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:35:57,619 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:35:57,619 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:35:57,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363041443] [2022-11-22 02:35:57,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:35:57,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:35:57,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:35:57,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:35:57,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:35:57,620 INFO L87 Difference]: Start difference. First operand 1587 states and 2092 transitions. Second operand has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:36:01,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:36:01,933 INFO L93 Difference]: Finished difference Result 2934 states and 3875 transitions. [2022-11-22 02:36:01,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:36:01,938 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2022-11-22 02:36:01,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:36:01,943 INFO L225 Difference]: With dead ends: 2934 [2022-11-22 02:36:01,943 INFO L226 Difference]: Without dead ends: 2693 [2022-11-22 02:36:01,944 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:36:01,945 INFO L413 NwaCegarLoop]: 1300 mSDtfsCounter, 3373 mSDsluCounter, 3844 mSDsCounter, 0 mSdLazyCounter, 3775 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3373 SdHoareTripleChecker+Valid, 5144 SdHoareTripleChecker+Invalid, 3780 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 3775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:36:01,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3373 Valid, 5144 Invalid, 3780 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 3775 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-22 02:36:01,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2693 states. [2022-11-22 02:36:02,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2693 to 1587. [2022-11-22 02:36:02,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1587 states, 1558 states have (on average 1.3421052631578947) internal successors, (2091), 1586 states have internal predecessors, (2091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:36:02,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1587 states to 1587 states and 2091 transitions. [2022-11-22 02:36:02,619 INFO L78 Accepts]: Start accepts. Automaton has 1587 states and 2091 transitions. Word has length 114 [2022-11-22 02:36:02,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:36:02,620 INFO L495 AbstractCegarLoop]: Abstraction has 1587 states and 2091 transitions. [2022-11-22 02:36:02,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:36:02,620 INFO L276 IsEmpty]: Start isEmpty. Operand 1587 states and 2091 transitions. [2022-11-22 02:36:02,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-22 02:36:02,622 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:36:02,622 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] [2022-11-22 02:36:02,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-11-22 02:36:02,623 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:36:02,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:36:02,623 INFO L85 PathProgramCache]: Analyzing trace with hash -1942041841, now seen corresponding path program 1 times [2022-11-22 02:36:02,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:36:02,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212956571] [2022-11-22 02:36:02,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:36:02,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:36:02,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:36:03,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:36:03,232 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:36:03,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212956571] [2022-11-22 02:36:03,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212956571] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:36:03,232 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:36:03,232 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:36:03,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661603987] [2022-11-22 02:36:03,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:36:03,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:36:03,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:36:03,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:36:03,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:36:03,234 INFO L87 Difference]: Start difference. First operand 1587 states and 2091 transitions. Second operand has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:36:07,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:36:07,587 INFO L93 Difference]: Finished difference Result 2793 states and 3668 transitions. [2022-11-22 02:36:07,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-22 02:36:07,587 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2022-11-22 02:36:07,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:36:07,593 INFO L225 Difference]: With dead ends: 2793 [2022-11-22 02:36:07,593 INFO L226 Difference]: Without dead ends: 2663 [2022-11-22 02:36:07,594 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2022-11-22 02:36:07,594 INFO L413 NwaCegarLoop]: 885 mSDtfsCounter, 4732 mSDsluCounter, 3824 mSDsCounter, 0 mSdLazyCounter, 3487 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4732 SdHoareTripleChecker+Valid, 4709 SdHoareTripleChecker+Invalid, 3492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 3487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-22 02:36:07,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4732 Valid, 4709 Invalid, 3492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 3487 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-22 02:36:07,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2663 states. [2022-11-22 02:36:08,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2663 to 1587. [2022-11-22 02:36:08,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1587 states, 1558 states have (on average 1.3414634146341464) internal successors, (2090), 1586 states have internal predecessors, (2090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:36:08,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1587 states to 1587 states and 2090 transitions. [2022-11-22 02:36:08,150 INFO L78 Accepts]: Start accepts. Automaton has 1587 states and 2090 transitions. Word has length 114 [2022-11-22 02:36:08,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:36:08,150 INFO L495 AbstractCegarLoop]: Abstraction has 1587 states and 2090 transitions. [2022-11-22 02:36:08,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:36:08,150 INFO L276 IsEmpty]: Start isEmpty. Operand 1587 states and 2090 transitions. [2022-11-22 02:36:08,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-22 02:36:08,153 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:36:08,153 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] [2022-11-22 02:36:08,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-11-22 02:36:08,153 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:36:08,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:36:08,153 INFO L85 PathProgramCache]: Analyzing trace with hash 87169319, now seen corresponding path program 1 times [2022-11-22 02:36:08,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:36:08,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489326730] [2022-11-22 02:36:08,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:36:08,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:36:08,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:36:08,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:36:08,970 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:36:08,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489326730] [2022-11-22 02:36:08,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489326730] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:36:08,970 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:36:08,970 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-22 02:36:08,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204761306] [2022-11-22 02:36:08,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:36:08,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-22 02:36:08,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:36:08,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-22 02:36:08,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-11-22 02:36:08,972 INFO L87 Difference]: Start difference. First operand 1587 states and 2090 transitions. Second operand has 10 states, 10 states have (on average 11.4) internal successors, (114), 9 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:36:11,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:36:11,907 INFO L93 Difference]: Finished difference Result 2375 states and 2949 transitions. [2022-11-22 02:36:11,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-22 02:36:11,908 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 9 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2022-11-22 02:36:11,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:36:11,910 INFO L225 Difference]: With dead ends: 2375 [2022-11-22 02:36:11,910 INFO L226 Difference]: Without dead ends: 1838 [2022-11-22 02:36:11,911 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=95, Invalid=211, Unknown=0, NotChecked=0, Total=306 [2022-11-22 02:36:11,912 INFO L413 NwaCegarLoop]: 1451 mSDtfsCounter, 5703 mSDsluCounter, 4681 mSDsCounter, 0 mSdLazyCounter, 1347 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5703 SdHoareTripleChecker+Valid, 6132 SdHoareTripleChecker+Invalid, 1348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:36:11,912 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5703 Valid, 6132 Invalid, 1348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1347 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-22 02:36:11,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1838 states. [2022-11-22 02:36:12,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1838 to 1162. [2022-11-22 02:36:12,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1162 states, 1140 states have (on average 1.3359649122807018) internal successors, (1523), 1161 states have internal predecessors, (1523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:36:12,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1162 states to 1162 states and 1523 transitions. [2022-11-22 02:36:12,368 INFO L78 Accepts]: Start accepts. Automaton has 1162 states and 1523 transitions. Word has length 114 [2022-11-22 02:36:12,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:36:12,368 INFO L495 AbstractCegarLoop]: Abstraction has 1162 states and 1523 transitions. [2022-11-22 02:36:12,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 9 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:36:12,369 INFO L276 IsEmpty]: Start isEmpty. Operand 1162 states and 1523 transitions. [2022-11-22 02:36:12,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-11-22 02:36:12,370 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:36:12,370 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] [2022-11-22 02:36:12,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-11-22 02:36:12,370 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:36:12,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:36:12,371 INFO L85 PathProgramCache]: Analyzing trace with hash 929486772, now seen corresponding path program 1 times [2022-11-22 02:36:12,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:36:12,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435471862] [2022-11-22 02:36:12,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:36:12,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:36:12,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:36:12,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:36:12,754 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:36:12,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435471862] [2022-11-22 02:36:12,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435471862] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:36:12,755 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:36:12,755 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:36:12,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427597105] [2022-11-22 02:36:12,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:36:12,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:36:12,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:36:12,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:36:12,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:36:12,757 INFO L87 Difference]: Start difference. First operand 1162 states and 1523 transitions. Second operand has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:36:15,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:36:15,626 INFO L93 Difference]: Finished difference Result 2012 states and 2600 transitions. [2022-11-22 02:36:15,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:36:15,626 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2022-11-22 02:36:15,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:36:15,628 INFO L225 Difference]: With dead ends: 2012 [2022-11-22 02:36:15,628 INFO L226 Difference]: Without dead ends: 1890 [2022-11-22 02:36:15,629 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:36:15,629 INFO L413 NwaCegarLoop]: 588 mSDtfsCounter, 3401 mSDsluCounter, 1781 mSDsCounter, 0 mSdLazyCounter, 1829 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3401 SdHoareTripleChecker+Valid, 2369 SdHoareTripleChecker+Invalid, 1833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1829 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:36:15,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3401 Valid, 2369 Invalid, 1833 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1829 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-22 02:36:15,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1890 states. [2022-11-22 02:36:16,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1890 to 1162. [2022-11-22 02:36:16,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1162 states, 1140 states have (on average 1.3342105263157895) internal successors, (1521), 1161 states have internal predecessors, (1521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:36:16,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1162 states to 1162 states and 1521 transitions. [2022-11-22 02:36:16,065 INFO L78 Accepts]: Start accepts. Automaton has 1162 states and 1521 transitions. Word has length 115 [2022-11-22 02:36:16,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:36:16,065 INFO L495 AbstractCegarLoop]: Abstraction has 1162 states and 1521 transitions. [2022-11-22 02:36:16,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:36:16,065 INFO L276 IsEmpty]: Start isEmpty. Operand 1162 states and 1521 transitions. [2022-11-22 02:36:16,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-11-22 02:36:16,066 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:36:16,066 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] [2022-11-22 02:36:16,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-11-22 02:36:16,066 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:36:16,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:36:16,067 INFO L85 PathProgramCache]: Analyzing trace with hash 107578612, now seen corresponding path program 1 times [2022-11-22 02:36:16,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:36:16,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636412781] [2022-11-22 02:36:16,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:36:16,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:36:16,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:36:16,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:36:16,452 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:36:16,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636412781] [2022-11-22 02:36:16,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636412781] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:36:16,452 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:36:16,452 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:36:16,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345739738] [2022-11-22 02:36:16,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:36:16,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:36:16,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:36:16,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:36:16,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:36:16,454 INFO L87 Difference]: Start difference. First operand 1162 states and 1521 transitions. Second operand has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:36:19,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:36:19,510 INFO L93 Difference]: Finished difference Result 2113 states and 2752 transitions. [2022-11-22 02:36:19,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:36:19,510 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2022-11-22 02:36:19,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:36:19,513 INFO L225 Difference]: With dead ends: 2113 [2022-11-22 02:36:19,513 INFO L226 Difference]: Without dead ends: 1974 [2022-11-22 02:36:19,514 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:36:19,514 INFO L413 NwaCegarLoop]: 620 mSDtfsCounter, 2277 mSDsluCounter, 1942 mSDsCounter, 0 mSdLazyCounter, 1921 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2277 SdHoareTripleChecker+Valid, 2562 SdHoareTripleChecker+Invalid, 1925 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1921 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:36:19,514 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2277 Valid, 2562 Invalid, 1925 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1921 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-22 02:36:19,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1974 states. [2022-11-22 02:36:20,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1974 to 1162. [2022-11-22 02:36:20,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1162 states, 1140 states have (on average 1.3324561403508772) internal successors, (1519), 1161 states have internal predecessors, (1519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:36:20,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1162 states to 1162 states and 1519 transitions. [2022-11-22 02:36:20,057 INFO L78 Accepts]: Start accepts. Automaton has 1162 states and 1519 transitions. Word has length 115 [2022-11-22 02:36:20,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:36:20,058 INFO L495 AbstractCegarLoop]: Abstraction has 1162 states and 1519 transitions. [2022-11-22 02:36:20,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:36:20,058 INFO L276 IsEmpty]: Start isEmpty. Operand 1162 states and 1519 transitions. [2022-11-22 02:36:20,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-11-22 02:36:20,059 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:36:20,059 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] [2022-11-22 02:36:20,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-11-22 02:36:20,059 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:36:20,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:36:20,060 INFO L85 PathProgramCache]: Analyzing trace with hash -33059212, now seen corresponding path program 1 times [2022-11-22 02:36:20,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:36:20,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095040836] [2022-11-22 02:36:20,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:36:20,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:36:20,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:36:20,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:36:20,445 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:36:20,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095040836] [2022-11-22 02:36:20,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095040836] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:36:20,446 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:36:20,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:36:20,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818199493] [2022-11-22 02:36:20,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:36:20,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:36:20,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:36:20,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:36:20,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:36:20,448 INFO L87 Difference]: Start difference. First operand 1162 states and 1519 transitions. Second operand has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:36:23,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:36:23,455 INFO L93 Difference]: Finished difference Result 2189 states and 2853 transitions. [2022-11-22 02:36:23,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:36:23,455 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2022-11-22 02:36:23,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:36:23,457 INFO L225 Difference]: With dead ends: 2189 [2022-11-22 02:36:23,458 INFO L226 Difference]: Without dead ends: 2006 [2022-11-22 02:36:23,458 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:36:23,459 INFO L413 NwaCegarLoop]: 564 mSDtfsCounter, 3729 mSDsluCounter, 1767 mSDsCounter, 0 mSdLazyCounter, 1764 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3729 SdHoareTripleChecker+Valid, 2331 SdHoareTripleChecker+Invalid, 1768 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1764 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:36:23,459 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3729 Valid, 2331 Invalid, 1768 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1764 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-22 02:36:23,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2006 states. [2022-11-22 02:36:23,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2006 to 1162. [2022-11-22 02:36:23,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1162 states, 1140 states have (on average 1.330701754385965) internal successors, (1517), 1161 states have internal predecessors, (1517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:36:23,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1162 states to 1162 states and 1517 transitions. [2022-11-22 02:36:23,951 INFO L78 Accepts]: Start accepts. Automaton has 1162 states and 1517 transitions. Word has length 115 [2022-11-22 02:36:23,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:36:23,952 INFO L495 AbstractCegarLoop]: Abstraction has 1162 states and 1517 transitions. [2022-11-22 02:36:23,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:36:23,952 INFO L276 IsEmpty]: Start isEmpty. Operand 1162 states and 1517 transitions. [2022-11-22 02:36:23,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-11-22 02:36:23,953 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:36:23,953 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] [2022-11-22 02:36:23,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-11-22 02:36:23,954 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:36:23,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:36:23,954 INFO L85 PathProgramCache]: Analyzing trace with hash 108860084, now seen corresponding path program 1 times [2022-11-22 02:36:23,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:36:23,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977602958] [2022-11-22 02:36:23,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:36:23,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:36:24,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:36:24,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:36:24,379 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:36:24,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977602958] [2022-11-22 02:36:24,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977602958] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:36:24,380 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:36:24,380 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:36:24,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947261697] [2022-11-22 02:36:24,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:36:24,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:36:24,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:36:24,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:36:24,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:36:24,382 INFO L87 Difference]: Start difference. First operand 1162 states and 1517 transitions. Second operand has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:36:27,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:36:27,628 INFO L93 Difference]: Finished difference Result 2437 states and 3201 transitions. [2022-11-22 02:36:27,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:36:27,628 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2022-11-22 02:36:27,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:36:27,630 INFO L225 Difference]: With dead ends: 2437 [2022-11-22 02:36:27,630 INFO L226 Difference]: Without dead ends: 2042 [2022-11-22 02:36:27,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:36:27,631 INFO L413 NwaCegarLoop]: 809 mSDtfsCounter, 2296 mSDsluCounter, 2080 mSDsCounter, 0 mSdLazyCounter, 2087 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2296 SdHoareTripleChecker+Valid, 2889 SdHoareTripleChecker+Invalid, 2092 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 2087 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-22 02:36:27,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2296 Valid, 2889 Invalid, 2092 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 2087 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-22 02:36:27,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2042 states. [2022-11-22 02:36:28,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2042 to 1162. [2022-11-22 02:36:28,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1162 states, 1140 states have (on average 1.3289473684210527) internal successors, (1515), 1161 states have internal predecessors, (1515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:36:28,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1162 states to 1162 states and 1515 transitions. [2022-11-22 02:36:28,118 INFO L78 Accepts]: Start accepts. Automaton has 1162 states and 1515 transitions. Word has length 115 [2022-11-22 02:36:28,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:36:28,118 INFO L495 AbstractCegarLoop]: Abstraction has 1162 states and 1515 transitions. [2022-11-22 02:36:28,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:36:28,119 INFO L276 IsEmpty]: Start isEmpty. Operand 1162 states and 1515 transitions. [2022-11-22 02:36:28,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-11-22 02:36:28,121 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:36:28,121 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] [2022-11-22 02:36:28,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-11-22 02:36:28,122 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:36:28,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:36:28,122 INFO L85 PathProgramCache]: Analyzing trace with hash 959634164, now seen corresponding path program 1 times [2022-11-22 02:36:28,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:36:28,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492678700] [2022-11-22 02:36:28,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:36:28,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:36:28,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:36:28,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:36:28,548 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:36:28,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492678700] [2022-11-22 02:36:28,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492678700] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:36:28,551 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:36:28,551 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:36:28,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360398506] [2022-11-22 02:36:28,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:36:28,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:36:28,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:36:28,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:36:28,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:36:28,556 INFO L87 Difference]: Start difference. First operand 1162 states and 1515 transitions. Second operand has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:36:31,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:36:31,711 INFO L93 Difference]: Finished difference Result 2174 states and 2834 transitions. [2022-11-22 02:36:31,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:36:31,711 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2022-11-22 02:36:31,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:36:31,713 INFO L225 Difference]: With dead ends: 2174 [2022-11-22 02:36:31,713 INFO L226 Difference]: Without dead ends: 2006 [2022-11-22 02:36:31,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:36:31,715 INFO L413 NwaCegarLoop]: 556 mSDtfsCounter, 2370 mSDsluCounter, 1783 mSDsCounter, 0 mSdLazyCounter, 1749 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2370 SdHoareTripleChecker+Valid, 2339 SdHoareTripleChecker+Invalid, 1753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:36:31,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2370 Valid, 2339 Invalid, 1753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1749 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-22 02:36:31,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2006 states. [2022-11-22 02:36:32,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2006 to 1162. [2022-11-22 02:36:32,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1162 states, 1140 states have (on average 1.3271929824561404) internal successors, (1513), 1161 states have internal predecessors, (1513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:36:32,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1162 states to 1162 states and 1513 transitions. [2022-11-22 02:36:32,219 INFO L78 Accepts]: Start accepts. Automaton has 1162 states and 1513 transitions. Word has length 115 [2022-11-22 02:36:32,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:36:32,219 INFO L495 AbstractCegarLoop]: Abstraction has 1162 states and 1513 transitions. [2022-11-22 02:36:32,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:36:32,220 INFO L276 IsEmpty]: Start isEmpty. Operand 1162 states and 1513 transitions. [2022-11-22 02:36:32,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-11-22 02:36:32,221 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:36:32,222 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] [2022-11-22 02:36:32,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-11-22 02:36:32,222 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:36:32,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:36:32,222 INFO L85 PathProgramCache]: Analyzing trace with hash 179689140, now seen corresponding path program 1 times [2022-11-22 02:36:32,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:36:32,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439947917] [2022-11-22 02:36:32,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:36:32,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:36:32,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:36:32,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:36:32,587 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:36:32,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439947917] [2022-11-22 02:36:32,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439947917] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:36:32,587 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:36:32,587 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:36:32,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589818853] [2022-11-22 02:36:32,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:36:32,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:36:32,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:36:32,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:36:32,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:36:32,588 INFO L87 Difference]: Start difference. First operand 1162 states and 1513 transitions. Second operand has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:36:35,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:36:35,732 INFO L93 Difference]: Finished difference Result 2113 states and 2744 transitions. [2022-11-22 02:36:35,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:36:35,733 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2022-11-22 02:36:35,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:36:35,735 INFO L225 Difference]: With dead ends: 2113 [2022-11-22 02:36:35,735 INFO L226 Difference]: Without dead ends: 1974 [2022-11-22 02:36:35,736 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:36:35,736 INFO L413 NwaCegarLoop]: 645 mSDtfsCounter, 2335 mSDsluCounter, 2039 mSDsCounter, 0 mSdLazyCounter, 1879 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2335 SdHoareTripleChecker+Valid, 2684 SdHoareTripleChecker+Invalid, 1884 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1879 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:36:35,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2335 Valid, 2684 Invalid, 1884 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1879 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-22 02:36:35,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1974 states. [2022-11-22 02:36:36,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1974 to 1162. [2022-11-22 02:36:36,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1162 states, 1140 states have (on average 1.325438596491228) internal successors, (1511), 1161 states have internal predecessors, (1511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:36:36,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1162 states to 1162 states and 1511 transitions. [2022-11-22 02:36:36,249 INFO L78 Accepts]: Start accepts. Automaton has 1162 states and 1511 transitions. Word has length 115 [2022-11-22 02:36:36,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:36:36,250 INFO L495 AbstractCegarLoop]: Abstraction has 1162 states and 1511 transitions. [2022-11-22 02:36:36,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:36:36,250 INFO L276 IsEmpty]: Start isEmpty. Operand 1162 states and 1511 transitions. [2022-11-22 02:36:36,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-11-22 02:36:36,251 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:36:36,251 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] [2022-11-22 02:36:36,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-11-22 02:36:36,251 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:36:36,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:36:36,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1001597300, now seen corresponding path program 1 times [2022-11-22 02:36:36,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:36:36,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669690678] [2022-11-22 02:36:36,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:36:36,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:36:36,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:36:36,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:36:36,692 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:36:36,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669690678] [2022-11-22 02:36:36,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669690678] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:36:36,693 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:36:36,693 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:36:36,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471461346] [2022-11-22 02:36:36,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:36:36,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:36:36,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:36:36,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:36:36,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:36:36,695 INFO L87 Difference]: Start difference. First operand 1162 states and 1511 transitions. Second operand has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:36:39,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:36:39,759 INFO L93 Difference]: Finished difference Result 2181 states and 2833 transitions. [2022-11-22 02:36:39,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:36:39,759 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2022-11-22 02:36:39,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:36:39,762 INFO L225 Difference]: With dead ends: 2181 [2022-11-22 02:36:39,762 INFO L226 Difference]: Without dead ends: 2006 [2022-11-22 02:36:39,763 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:36:39,763 INFO L413 NwaCegarLoop]: 520 mSDtfsCounter, 3952 mSDsluCounter, 1668 mSDsCounter, 0 mSdLazyCounter, 1548 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3952 SdHoareTripleChecker+Valid, 2188 SdHoareTripleChecker+Invalid, 1554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:36:39,763 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3952 Valid, 2188 Invalid, 1554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1548 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-22 02:36:39,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2006 states. [2022-11-22 02:36:40,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2006 to 1162. [2022-11-22 02:36:40,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1162 states, 1140 states have (on average 1.3236842105263158) internal successors, (1509), 1161 states have internal predecessors, (1509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:36:40,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1162 states to 1162 states and 1509 transitions. [2022-11-22 02:36:40,282 INFO L78 Accepts]: Start accepts. Automaton has 1162 states and 1509 transitions. Word has length 115 [2022-11-22 02:36:40,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:36:40,282 INFO L495 AbstractCegarLoop]: Abstraction has 1162 states and 1509 transitions. [2022-11-22 02:36:40,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:36:40,282 INFO L276 IsEmpty]: Start isEmpty. Operand 1162 states and 1509 transitions. [2022-11-22 02:36:40,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-11-22 02:36:40,283 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:36:40,283 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] [2022-11-22 02:36:40,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-11-22 02:36:40,284 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:36:40,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:36:40,284 INFO L85 PathProgramCache]: Analyzing trace with hash -1963445644, now seen corresponding path program 1 times [2022-11-22 02:36:40,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:36:40,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780442364] [2022-11-22 02:36:40,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:36:40,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:36:40,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:36:40,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:36:40,623 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:36:40,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780442364] [2022-11-22 02:36:40,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780442364] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:36:40,623 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:36:40,623 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:36:40,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480761248] [2022-11-22 02:36:40,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:36:40,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:36:40,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:36:40,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:36:40,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:36:40,625 INFO L87 Difference]: Start difference. First operand 1162 states and 1509 transitions. Second operand has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:36:43,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:36:43,984 INFO L93 Difference]: Finished difference Result 2112 states and 2738 transitions. [2022-11-22 02:36:43,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:36:43,984 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2022-11-22 02:36:43,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:36:43,986 INFO L225 Difference]: With dead ends: 2112 [2022-11-22 02:36:43,986 INFO L226 Difference]: Without dead ends: 1974 [2022-11-22 02:36:43,987 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:36:43,987 INFO L413 NwaCegarLoop]: 700 mSDtfsCounter, 2123 mSDsluCounter, 2194 mSDsCounter, 0 mSdLazyCounter, 2075 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2123 SdHoareTripleChecker+Valid, 2894 SdHoareTripleChecker+Invalid, 2079 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-22 02:36:43,987 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2123 Valid, 2894 Invalid, 2079 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2075 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-22 02:36:43,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1974 states. [2022-11-22 02:36:44,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1974 to 1162. [2022-11-22 02:36:44,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1162 states, 1140 states have (on average 1.3219298245614035) internal successors, (1507), 1161 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:36:44,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1162 states to 1162 states and 1507 transitions. [2022-11-22 02:36:44,483 INFO L78 Accepts]: Start accepts. Automaton has 1162 states and 1507 transitions. Word has length 115 [2022-11-22 02:36:44,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:36:44,483 INFO L495 AbstractCegarLoop]: Abstraction has 1162 states and 1507 transitions. [2022-11-22 02:36:44,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:36:44,484 INFO L276 IsEmpty]: Start isEmpty. Operand 1162 states and 1507 transitions. [2022-11-22 02:36:44,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-11-22 02:36:44,485 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:36:44,485 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:36:44,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-11-22 02:36:44,485 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:36:44,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:36:44,486 INFO L85 PathProgramCache]: Analyzing trace with hash 829235140, now seen corresponding path program 1 times [2022-11-22 02:36:44,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:36:44,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934581388] [2022-11-22 02:36:44,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:36:44,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:36:44,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:36:44,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:36:44,940 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:36:44,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934581388] [2022-11-22 02:36:44,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934581388] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:36:44,941 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:36:44,941 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:36:44,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765319785] [2022-11-22 02:36:44,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:36:44,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:36:44,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:36:44,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:36:44,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:36:44,943 INFO L87 Difference]: Start difference. First operand 1162 states and 1507 transitions. Second operand has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:36:48,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:36:48,302 INFO L93 Difference]: Finished difference Result 2002 states and 2573 transitions. [2022-11-22 02:36:48,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:36:48,302 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2022-11-22 02:36:48,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:36:48,304 INFO L225 Difference]: With dead ends: 2002 [2022-11-22 02:36:48,305 INFO L226 Difference]: Without dead ends: 1888 [2022-11-22 02:36:48,305 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:36:48,305 INFO L413 NwaCegarLoop]: 620 mSDtfsCounter, 3249 mSDsluCounter, 1887 mSDsCounter, 0 mSdLazyCounter, 1868 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3249 SdHoareTripleChecker+Valid, 2507 SdHoareTripleChecker+Invalid, 1872 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1868 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:36:48,306 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3249 Valid, 2507 Invalid, 1872 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1868 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-22 02:36:48,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1888 states. [2022-11-22 02:36:48,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1888 to 1160. [2022-11-22 02:36:48,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1160 states, 1138 states have (on average 1.320738137082601) internal successors, (1503), 1159 states have internal predecessors, (1503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:36:48,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1160 states to 1160 states and 1503 transitions. [2022-11-22 02:36:48,898 INFO L78 Accepts]: Start accepts. Automaton has 1160 states and 1503 transitions. Word has length 115 [2022-11-22 02:36:48,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:36:48,898 INFO L495 AbstractCegarLoop]: Abstraction has 1160 states and 1503 transitions. [2022-11-22 02:36:48,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:36:48,898 INFO L276 IsEmpty]: Start isEmpty. Operand 1160 states and 1503 transitions. [2022-11-22 02:36:48,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-11-22 02:36:48,900 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:36:48,900 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:36:48,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-11-22 02:36:48,900 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:36:48,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:36:48,900 INFO L85 PathProgramCache]: Analyzing trace with hash 2124121284, now seen corresponding path program 1 times [2022-11-22 02:36:48,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:36:48,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546358251] [2022-11-22 02:36:48,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:36:48,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:36:48,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:36:49,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:36:49,263 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:36:49,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546358251] [2022-11-22 02:36:49,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546358251] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:36:49,263 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:36:49,263 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:36:49,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424728611] [2022-11-22 02:36:49,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:36:49,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:36:49,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:36:49,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:36:49,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:36:49,265 INFO L87 Difference]: Start difference. First operand 1160 states and 1503 transitions. Second operand has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:36:52,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:36:52,537 INFO L93 Difference]: Finished difference Result 2162 states and 2801 transitions. [2022-11-22 02:36:52,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:36:52,538 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2022-11-22 02:36:52,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:36:52,541 INFO L225 Difference]: With dead ends: 2162 [2022-11-22 02:36:52,541 INFO L226 Difference]: Without dead ends: 2002 [2022-11-22 02:36:52,542 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:36:52,542 INFO L413 NwaCegarLoop]: 556 mSDtfsCounter, 2324 mSDsluCounter, 1800 mSDsCounter, 0 mSdLazyCounter, 1735 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2324 SdHoareTripleChecker+Valid, 2356 SdHoareTripleChecker+Invalid, 1739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1735 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:36:52,543 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2324 Valid, 2356 Invalid, 1739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1735 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-22 02:36:52,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2002 states. [2022-11-22 02:36:53,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2002 to 1160. [2022-11-22 02:36:53,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1160 states, 1138 states have (on average 1.318980667838313) internal successors, (1501), 1159 states have internal predecessors, (1501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:36:53,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1160 states to 1160 states and 1501 transitions. [2022-11-22 02:36:53,156 INFO L78 Accepts]: Start accepts. Automaton has 1160 states and 1501 transitions. Word has length 115 [2022-11-22 02:36:53,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:36:53,157 INFO L495 AbstractCegarLoop]: Abstraction has 1160 states and 1501 transitions. [2022-11-22 02:36:53,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:36:53,157 INFO L276 IsEmpty]: Start isEmpty. Operand 1160 states and 1501 transitions. [2022-11-22 02:36:53,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-22 02:36:53,158 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:36:53,158 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] [2022-11-22 02:36:53,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-11-22 02:36:53,158 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:36:53,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:36:53,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1513076373, now seen corresponding path program 1 times [2022-11-22 02:36:53,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:36:53,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788042453] [2022-11-22 02:36:53,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:36:53,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:36:53,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:36:53,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:36:53,524 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:36:53,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788042453] [2022-11-22 02:36:53,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788042453] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:36:53,524 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:36:53,524 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:36:53,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656350153] [2022-11-22 02:36:53,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:36:53,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:36:53,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:36:53,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:36:53,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:36:53,526 INFO L87 Difference]: Start difference. First operand 1160 states and 1501 transitions. Second operand has 8 states, 8 states have (on average 14.5) internal successors, (116), 7 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:36:56,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:36:56,972 INFO L93 Difference]: Finished difference Result 2104 states and 2723 transitions. [2022-11-22 02:36:56,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:36:56,973 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.5) internal successors, (116), 7 states have internal predecessors, (116), 0 states have call successors, (0), 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 116 [2022-11-22 02:36:56,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:36:56,975 INFO L225 Difference]: With dead ends: 2104 [2022-11-22 02:36:56,975 INFO L226 Difference]: Without dead ends: 1972 [2022-11-22 02:36:56,975 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2022-11-22 02:36:56,976 INFO L413 NwaCegarLoop]: 673 mSDtfsCounter, 3213 mSDsluCounter, 2161 mSDsCounter, 0 mSdLazyCounter, 1961 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3213 SdHoareTripleChecker+Valid, 2834 SdHoareTripleChecker+Invalid, 1966 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1961 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-22 02:36:56,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3213 Valid, 2834 Invalid, 1966 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1961 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-22 02:36:56,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1972 states. [2022-11-22 02:36:57,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1972 to 1160. [2022-11-22 02:36:57,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1160 states, 1138 states have (on average 1.3172231985940246) internal successors, (1499), 1159 states have internal predecessors, (1499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:36:57,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1160 states to 1160 states and 1499 transitions. [2022-11-22 02:36:57,558 INFO L78 Accepts]: Start accepts. Automaton has 1160 states and 1499 transitions. Word has length 116 [2022-11-22 02:36:57,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:36:57,558 INFO L495 AbstractCegarLoop]: Abstraction has 1160 states and 1499 transitions. [2022-11-22 02:36:57,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.5) internal successors, (116), 7 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:36:57,558 INFO L276 IsEmpty]: Start isEmpty. Operand 1160 states and 1499 transitions. [2022-11-22 02:36:57,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-22 02:36:57,560 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:36:57,560 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] [2022-11-22 02:36:57,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-11-22 02:36:57,560 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:36:57,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:36:57,560 INFO L85 PathProgramCache]: Analyzing trace with hash -1287146171, now seen corresponding path program 1 times [2022-11-22 02:36:57,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:36:57,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740395470] [2022-11-22 02:36:57,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:36:57,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:36:57,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:36:58,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:36:58,401 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:36:58,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740395470] [2022-11-22 02:36:58,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740395470] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:36:58,401 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:36:58,401 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-22 02:36:58,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457721547] [2022-11-22 02:36:58,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:36:58,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-22 02:36:58,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:36:58,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-22 02:36:58,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-22 02:36:58,403 INFO L87 Difference]: Start difference. First operand 1160 states and 1499 transitions. Second operand has 13 states, 13 states have (on average 8.923076923076923) internal successors, (116), 12 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:37:04,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:37:04,114 INFO L93 Difference]: Finished difference Result 3905 states and 5071 transitions. [2022-11-22 02:37:04,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-22 02:37:04,115 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 8.923076923076923) internal successors, (116), 12 states have internal predecessors, (116), 0 states have call successors, (0), 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 116 [2022-11-22 02:37:04,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:37:04,119 INFO L225 Difference]: With dead ends: 3905 [2022-11-22 02:37:04,119 INFO L226 Difference]: Without dead ends: 3695 [2022-11-22 02:37:04,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2022-11-22 02:37:04,120 INFO L413 NwaCegarLoop]: 1396 mSDtfsCounter, 4306 mSDsluCounter, 8999 mSDsCounter, 0 mSdLazyCounter, 995 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4306 SdHoareTripleChecker+Valid, 10395 SdHoareTripleChecker+Invalid, 996 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 995 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:37:04,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4306 Valid, 10395 Invalid, 996 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 995 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-22 02:37:04,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3695 states. [2022-11-22 02:37:04,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3695 to 1062. [2022-11-22 02:37:04,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1062 states, 1041 states have (on average 1.3121998078770414) internal successors, (1366), 1061 states have internal predecessors, (1366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:37:04,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1062 states to 1062 states and 1366 transitions. [2022-11-22 02:37:04,777 INFO L78 Accepts]: Start accepts. Automaton has 1062 states and 1366 transitions. Word has length 116 [2022-11-22 02:37:04,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:37:04,777 INFO L495 AbstractCegarLoop]: Abstraction has 1062 states and 1366 transitions. [2022-11-22 02:37:04,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 8.923076923076923) internal successors, (116), 12 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:37:04,778 INFO L276 IsEmpty]: Start isEmpty. Operand 1062 states and 1366 transitions. [2022-11-22 02:37:04,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-22 02:37:04,779 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:37:04,779 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] [2022-11-22 02:37:04,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-11-22 02:37:04,779 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:37:04,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:37:04,780 INFO L85 PathProgramCache]: Analyzing trace with hash -2107986197, now seen corresponding path program 1 times [2022-11-22 02:37:04,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:37:04,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567414083] [2022-11-22 02:37:04,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:37:04,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:37:04,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:37:05,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:37:05,211 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:37:05,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567414083] [2022-11-22 02:37:05,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567414083] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:37:05,211 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:37:05,211 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:37:05,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347899932] [2022-11-22 02:37:05,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:37:05,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:37:05,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:37:05,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:37:05,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:37:05,212 INFO L87 Difference]: Start difference. First operand 1062 states and 1366 transitions. Second operand has 8 states, 8 states have (on average 14.5) internal successors, (116), 7 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:37:08,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:37:08,959 INFO L93 Difference]: Finished difference Result 2163 states and 2805 transitions. [2022-11-22 02:37:08,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-22 02:37:08,960 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.5) internal successors, (116), 7 states have internal predecessors, (116), 0 states have call successors, (0), 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 116 [2022-11-22 02:37:08,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:37:08,962 INFO L225 Difference]: With dead ends: 2163 [2022-11-22 02:37:08,962 INFO L226 Difference]: Without dead ends: 1922 [2022-11-22 02:37:08,963 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 [2022-11-22 02:37:08,964 INFO L413 NwaCegarLoop]: 946 mSDtfsCounter, 2551 mSDsluCounter, 3051 mSDsCounter, 0 mSdLazyCounter, 2556 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2551 SdHoareTripleChecker+Valid, 3997 SdHoareTripleChecker+Invalid, 2559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-22 02:37:08,964 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2551 Valid, 3997 Invalid, 2559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2556 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-22 02:37:08,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1922 states. [2022-11-22 02:37:09,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1922 to 1062. [2022-11-22 02:37:09,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1062 states, 1041 states have (on average 1.3102785782901056) internal successors, (1364), 1061 states have internal predecessors, (1364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:37:09,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1062 states to 1062 states and 1364 transitions. [2022-11-22 02:37:09,688 INFO L78 Accepts]: Start accepts. Automaton has 1062 states and 1364 transitions. Word has length 116 [2022-11-22 02:37:09,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:37:09,688 INFO L495 AbstractCegarLoop]: Abstraction has 1062 states and 1364 transitions. [2022-11-22 02:37:09,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.5) internal successors, (116), 7 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:37:09,689 INFO L276 IsEmpty]: Start isEmpty. Operand 1062 states and 1364 transitions. [2022-11-22 02:37:09,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-22 02:37:09,690 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:37:09,690 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] [2022-11-22 02:37:09,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-11-22 02:37:09,690 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:37:09,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:37:09,691 INFO L85 PathProgramCache]: Analyzing trace with hash 2134032171, now seen corresponding path program 1 times [2022-11-22 02:37:09,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:37:09,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588407058] [2022-11-22 02:37:09,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:37:09,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:37:09,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:37:10,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:37:10,393 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:37:10,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588407058] [2022-11-22 02:37:10,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588407058] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:37:10,393 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:37:10,393 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-22 02:37:10,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128146295] [2022-11-22 02:37:10,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:37:10,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-22 02:37:10,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:37:10,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-22 02:37:10,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-22 02:37:10,395 INFO L87 Difference]: Start difference. First operand 1062 states and 1364 transitions. Second operand has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:37:17,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:37:17,401 INFO L93 Difference]: Finished difference Result 2970 states and 3862 transitions. [2022-11-22 02:37:17,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-22 02:37:17,401 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 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 116 [2022-11-22 02:37:17,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:37:17,404 INFO L225 Difference]: With dead ends: 2970 [2022-11-22 02:37:17,404 INFO L226 Difference]: Without dead ends: 2748 [2022-11-22 02:37:17,405 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2022-11-22 02:37:17,406 INFO L413 NwaCegarLoop]: 868 mSDtfsCounter, 5119 mSDsluCounter, 3588 mSDsCounter, 0 mSdLazyCounter, 3493 mSolverCounterSat, 186 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5119 SdHoareTripleChecker+Valid, 4456 SdHoareTripleChecker+Invalid, 3679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 186 IncrementalHoareTripleChecker+Valid, 3493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-22 02:37:17,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5119 Valid, 4456 Invalid, 3679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [186 Valid, 3493 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-22 02:37:17,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2748 states. [2022-11-22 02:37:18,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2748 to 1072. [2022-11-22 02:37:18,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1072 states, 1051 states have (on average 1.30732635585157) internal successors, (1374), 1071 states have internal predecessors, (1374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:37:18,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1374 transitions. [2022-11-22 02:37:18,277 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1374 transitions. Word has length 116 [2022-11-22 02:37:18,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:37:18,277 INFO L495 AbstractCegarLoop]: Abstraction has 1072 states and 1374 transitions. [2022-11-22 02:37:18,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:37:18,278 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1374 transitions. [2022-11-22 02:37:18,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-22 02:37:18,279 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:37:18,279 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] [2022-11-22 02:37:18,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-11-22 02:37:18,279 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:37:18,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:37:18,279 INFO L85 PathProgramCache]: Analyzing trace with hash 137325067, now seen corresponding path program 1 times [2022-11-22 02:37:18,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:37:18,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977267863] [2022-11-22 02:37:18,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:37:18,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:37:18,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:37:18,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:37:18,638 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:37:18,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977267863] [2022-11-22 02:37:18,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977267863] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:37:18,638 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:37:18,638 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:37:18,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302506876] [2022-11-22 02:37:18,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:37:18,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:37:18,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:37:18,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:37:18,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:37:18,640 INFO L87 Difference]: Start difference. First operand 1072 states and 1374 transitions. Second operand has 8 states, 8 states have (on average 14.5) internal successors, (116), 7 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:37:22,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:37:22,427 INFO L93 Difference]: Finished difference Result 2141 states and 2774 transitions. [2022-11-22 02:37:22,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-22 02:37:22,428 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.5) internal successors, (116), 7 states have internal predecessors, (116), 0 states have call successors, (0), 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 116 [2022-11-22 02:37:22,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:37:22,430 INFO L225 Difference]: With dead ends: 2141 [2022-11-22 02:37:22,430 INFO L226 Difference]: Without dead ends: 1922 [2022-11-22 02:37:22,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2022-11-22 02:37:22,432 INFO L413 NwaCegarLoop]: 823 mSDtfsCounter, 2795 mSDsluCounter, 2812 mSDsCounter, 0 mSdLazyCounter, 2315 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2795 SdHoareTripleChecker+Valid, 3635 SdHoareTripleChecker+Invalid, 2318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-22 02:37:22,434 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2795 Valid, 3635 Invalid, 2318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2315 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-22 02:37:22,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1922 states. [2022-11-22 02:37:23,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1922 to 1072. [2022-11-22 02:37:23,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1072 states, 1051 states have (on average 1.3054234062797336) internal successors, (1372), 1071 states have internal predecessors, (1372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:37:23,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1372 transitions. [2022-11-22 02:37:23,130 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1372 transitions. Word has length 116 [2022-11-22 02:37:23,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:37:23,130 INFO L495 AbstractCegarLoop]: Abstraction has 1072 states and 1372 transitions. [2022-11-22 02:37:23,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.5) internal successors, (116), 7 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:37:23,131 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1372 transitions. [2022-11-22 02:37:23,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-11-22 02:37:23,131 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:37:23,132 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:37:23,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-11-22 02:37:23,132 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:37:23,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:37:23,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1811786073, now seen corresponding path program 1 times [2022-11-22 02:37:23,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:37:23,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969065557] [2022-11-22 02:37:23,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:37:23,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:37:23,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:37:23,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:37:23,453 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:37:23,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969065557] [2022-11-22 02:37:23,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969065557] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:37:23,453 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:37:23,453 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:37:23,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678689020] [2022-11-22 02:37:23,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:37:23,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:37:23,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:37:23,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:37:23,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:37:23,455 INFO L87 Difference]: Start difference. First operand 1072 states and 1372 transitions. Second operand has 8 states, 8 states have (on average 14.625) internal successors, (117), 7 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:37:27,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:37:27,097 INFO L93 Difference]: Finished difference Result 2089 states and 2688 transitions. [2022-11-22 02:37:27,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:37:27,098 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.625) internal successors, (117), 7 states have internal predecessors, (117), 0 states have call successors, (0), 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 117 [2022-11-22 02:37:27,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:37:27,099 INFO L225 Difference]: With dead ends: 2089 [2022-11-22 02:37:27,099 INFO L226 Difference]: Without dead ends: 1914 [2022-11-22 02:37:27,100 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:37:27,100 INFO L413 NwaCegarLoop]: 581 mSDtfsCounter, 3233 mSDsluCounter, 1866 mSDsCounter, 0 mSdLazyCounter, 1667 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3233 SdHoareTripleChecker+Valid, 2447 SdHoareTripleChecker+Invalid, 1672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:37:27,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3233 Valid, 2447 Invalid, 1672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1667 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-22 02:37:27,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1914 states. [2022-11-22 02:37:27,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1914 to 1072. [2022-11-22 02:37:27,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1072 states, 1051 states have (on average 1.3035204567078973) internal successors, (1370), 1071 states have internal predecessors, (1370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:37:27,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1370 transitions. [2022-11-22 02:37:27,772 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1370 transitions. Word has length 117 [2022-11-22 02:37:27,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:37:27,772 INFO L495 AbstractCegarLoop]: Abstraction has 1072 states and 1370 transitions. [2022-11-22 02:37:27,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.625) internal successors, (117), 7 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:37:27,773 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1370 transitions. [2022-11-22 02:37:27,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-11-22 02:37:27,773 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:37:27,774 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] [2022-11-22 02:37:27,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-11-22 02:37:27,774 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:37:27,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:37:27,774 INFO L85 PathProgramCache]: Analyzing trace with hash -1153256871, now seen corresponding path program 1 times [2022-11-22 02:37:27,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:37:27,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161053322] [2022-11-22 02:37:27,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:37:27,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:37:27,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:37:28,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:37:28,111 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:37:28,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161053322] [2022-11-22 02:37:28,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161053322] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:37:28,111 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:37:28,111 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:37:28,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441273639] [2022-11-22 02:37:28,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:37:28,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:37:28,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:37:28,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:37:28,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:37:28,113 INFO L87 Difference]: Start difference. First operand 1072 states and 1370 transitions. Second operand has 8 states, 8 states have (on average 14.625) internal successors, (117), 7 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:37:31,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:37:31,798 INFO L93 Difference]: Finished difference Result 1872 states and 2384 transitions. [2022-11-22 02:37:31,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:37:31,799 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.625) internal successors, (117), 7 states have internal predecessors, (117), 0 states have call successors, (0), 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 117 [2022-11-22 02:37:31,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:37:31,801 INFO L225 Difference]: With dead ends: 1872 [2022-11-22 02:37:31,801 INFO L226 Difference]: Without dead ends: 1750 [2022-11-22 02:37:31,802 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:37:31,802 INFO L413 NwaCegarLoop]: 594 mSDtfsCounter, 2935 mSDsluCounter, 1783 mSDsCounter, 0 mSdLazyCounter, 1723 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2935 SdHoareTripleChecker+Valid, 2377 SdHoareTripleChecker+Invalid, 1727 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:37:31,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2935 Valid, 2377 Invalid, 1727 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1723 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-22 02:37:31,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1750 states. [2022-11-22 02:37:32,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1750 to 1072. [2022-11-22 02:37:32,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1072 states, 1051 states have (on average 1.301617507136061) internal successors, (1368), 1071 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) [2022-11-22 02:37:32,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1368 transitions. [2022-11-22 02:37:32,525 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1368 transitions. Word has length 117 [2022-11-22 02:37:32,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:37:32,526 INFO L495 AbstractCegarLoop]: Abstraction has 1072 states and 1368 transitions. [2022-11-22 02:37:32,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.625) internal successors, (117), 7 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:37:32,526 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1368 transitions. [2022-11-22 02:37:32,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-11-22 02:37:32,527 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:37:32,527 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] [2022-11-22 02:37:32,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-11-22 02:37:32,527 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:37:32,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:37:32,528 INFO L85 PathProgramCache]: Analyzing trace with hash -370462295, now seen corresponding path program 1 times [2022-11-22 02:37:32,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:37:32,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137025801] [2022-11-22 02:37:32,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:37:32,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:37:32,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:37:32,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:37:32,838 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:37:32,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137025801] [2022-11-22 02:37:32,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137025801] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:37:32,839 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:37:32,839 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:37:32,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752444567] [2022-11-22 02:37:32,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:37:32,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:37:32,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:37:32,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:37:32,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:37:32,841 INFO L87 Difference]: Start difference. First operand 1072 states and 1368 transitions. Second operand has 8 states, 8 states have (on average 14.625) internal successors, (117), 7 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:37:36,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:37:36,487 INFO L93 Difference]: Finished difference Result 1862 states and 2369 transitions. [2022-11-22 02:37:36,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:37:36,487 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.625) internal successors, (117), 7 states have internal predecessors, (117), 0 states have call successors, (0), 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 117 [2022-11-22 02:37:36,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:37:36,490 INFO L225 Difference]: With dead ends: 1862 [2022-11-22 02:37:36,490 INFO L226 Difference]: Without dead ends: 1748 [2022-11-22 02:37:36,491 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:37:36,491 INFO L413 NwaCegarLoop]: 585 mSDtfsCounter, 2927 mSDsluCounter, 1772 mSDsCounter, 0 mSdLazyCounter, 1708 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2927 SdHoareTripleChecker+Valid, 2357 SdHoareTripleChecker+Invalid, 1712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:37:36,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2927 Valid, 2357 Invalid, 1712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1708 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-22 02:37:36,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1748 states. [2022-11-22 02:37:37,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1748 to 1070. [2022-11-22 02:37:37,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1070 states, 1049 states have (on average 1.3002859866539562) internal successors, (1364), 1069 states have internal predecessors, (1364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:37:37,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1070 states to 1070 states and 1364 transitions. [2022-11-22 02:37:37,253 INFO L78 Accepts]: Start accepts. Automaton has 1070 states and 1364 transitions. Word has length 117 [2022-11-22 02:37:37,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:37:37,254 INFO L495 AbstractCegarLoop]: Abstraction has 1070 states and 1364 transitions. [2022-11-22 02:37:37,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.625) internal successors, (117), 7 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:37:37,254 INFO L276 IsEmpty]: Start isEmpty. Operand 1070 states and 1364 transitions. [2022-11-22 02:37:37,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-11-22 02:37:37,256 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:37:37,256 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] [2022-11-22 02:37:37,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-11-22 02:37:37,256 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:37:37,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:37:37,257 INFO L85 PathProgramCache]: Analyzing trace with hash -1129025367, now seen corresponding path program 1 times [2022-11-22 02:37:37,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:37:37,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982717998] [2022-11-22 02:37:37,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:37:37,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:37:37,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:37:37,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:37:37,599 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:37:37,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982717998] [2022-11-22 02:37:37,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982717998] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:37:37,599 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:37:37,599 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:37:37,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409143244] [2022-11-22 02:37:37,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:37:37,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:37:37,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:37:37,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:37:37,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:37:37,601 INFO L87 Difference]: Start difference. First operand 1070 states and 1364 transitions. Second operand has 8 states, 8 states have (on average 14.625) internal successors, (117), 7 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:37:41,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:37:41,330 INFO L93 Difference]: Finished difference Result 1860 states and 2365 transitions. [2022-11-22 02:37:41,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:37:41,331 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.625) internal successors, (117), 7 states have internal predecessors, (117), 0 states have call successors, (0), 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 117 [2022-11-22 02:37:41,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:37:41,332 INFO L225 Difference]: With dead ends: 1860 [2022-11-22 02:37:41,332 INFO L226 Difference]: Without dead ends: 1746 [2022-11-22 02:37:41,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2022-11-22 02:37:41,333 INFO L413 NwaCegarLoop]: 585 mSDtfsCounter, 2918 mSDsluCounter, 1772 mSDsCounter, 0 mSdLazyCounter, 1703 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2918 SdHoareTripleChecker+Valid, 2357 SdHoareTripleChecker+Invalid, 1707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1703 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:37:41,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2918 Valid, 2357 Invalid, 1707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1703 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-22 02:37:41,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1746 states. [2022-11-22 02:37:42,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1746 to 1068. [2022-11-22 02:37:42,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1068 states, 1047 states have (on average 1.2989493791786055) internal successors, (1360), 1067 states have internal predecessors, (1360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:37:42,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1068 states to 1068 states and 1360 transitions. [2022-11-22 02:37:42,086 INFO L78 Accepts]: Start accepts. Automaton has 1068 states and 1360 transitions. Word has length 117 [2022-11-22 02:37:42,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:37:42,086 INFO L495 AbstractCegarLoop]: Abstraction has 1068 states and 1360 transitions. [2022-11-22 02:37:42,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.625) internal successors, (117), 7 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:37:42,086 INFO L276 IsEmpty]: Start isEmpty. Operand 1068 states and 1360 transitions. [2022-11-22 02:37:42,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-11-22 02:37:42,087 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:37:42,087 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] [2022-11-22 02:37:42,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-11-22 02:37:42,088 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:37:42,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:37:42,088 INFO L85 PathProgramCache]: Analyzing trace with hash 2144563162, now seen corresponding path program 1 times [2022-11-22 02:37:42,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:37:42,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785777720] [2022-11-22 02:37:42,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:37:42,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:37:42,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:37:42,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:37:42,398 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:37:42,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785777720] [2022-11-22 02:37:42,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785777720] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:37:42,399 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:37:42,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:37:42,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263751791] [2022-11-22 02:37:42,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:37:42,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:37:42,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:37:42,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:37:42,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:37:42,400 INFO L87 Difference]: Start difference. First operand 1068 states and 1360 transitions. Second operand has 8 states, 8 states have (on average 14.625) internal successors, (117), 7 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:37:46,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:37:46,580 INFO L93 Difference]: Finished difference Result 2138 states and 2751 transitions. [2022-11-22 02:37:46,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:37:46,581 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.625) internal successors, (117), 7 states have internal predecessors, (117), 0 states have call successors, (0), 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 117 [2022-11-22 02:37:46,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:37:46,582 INFO L225 Difference]: With dead ends: 2138 [2022-11-22 02:37:46,582 INFO L226 Difference]: Without dead ends: 1916 [2022-11-22 02:37:46,583 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:37:46,583 INFO L413 NwaCegarLoop]: 792 mSDtfsCounter, 2600 mSDsluCounter, 2305 mSDsCounter, 0 mSdLazyCounter, 2189 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2600 SdHoareTripleChecker+Valid, 3097 SdHoareTripleChecker+Invalid, 2192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-22 02:37:46,584 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2600 Valid, 3097 Invalid, 2192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2189 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-22 02:37:46,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1916 states. [2022-11-22 02:37:47,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1916 to 1058. [2022-11-22 02:37:47,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1058 states, 1037 states have (on average 1.299903567984571) internal successors, (1348), 1057 states have internal predecessors, (1348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:37:47,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1058 states to 1058 states and 1348 transitions. [2022-11-22 02:37:47,284 INFO L78 Accepts]: Start accepts. Automaton has 1058 states and 1348 transitions. Word has length 117 [2022-11-22 02:37:47,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:37:47,284 INFO L495 AbstractCegarLoop]: Abstraction has 1058 states and 1348 transitions. [2022-11-22 02:37:47,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.625) internal successors, (117), 7 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:37:47,285 INFO L276 IsEmpty]: Start isEmpty. Operand 1058 states and 1348 transitions. [2022-11-22 02:37:47,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-11-22 02:37:47,286 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:37:47,286 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] [2022-11-22 02:37:47,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-11-22 02:37:47,286 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:37:47,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:37:47,286 INFO L85 PathProgramCache]: Analyzing trace with hash -449319770, now seen corresponding path program 1 times [2022-11-22 02:37:47,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:37:47,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836593256] [2022-11-22 02:37:47,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:37:47,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:37:47,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:37:47,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:37:47,877 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:37:47,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836593256] [2022-11-22 02:37:47,877 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836593256] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:37:47,877 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:37:47,877 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-22 02:37:47,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641480672] [2022-11-22 02:37:47,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:37:47,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-22 02:37:47,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:37:47,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-22 02:37:47,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-22 02:37:47,878 INFO L87 Difference]: Start difference. First operand 1058 states and 1348 transitions. Second operand has 11 states, 11 states have (on average 10.727272727272727) internal successors, (118), 10 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) [2022-11-22 02:37:55,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:37:55,244 INFO L93 Difference]: Finished difference Result 3032 states and 3918 transitions. [2022-11-22 02:37:55,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-22 02:37:55,245 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.727272727272727) internal successors, (118), 10 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 [2022-11-22 02:37:55,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:37:55,247 INFO L225 Difference]: With dead ends: 3032 [2022-11-22 02:37:55,247 INFO L226 Difference]: Without dead ends: 2776 [2022-11-22 02:37:55,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2022-11-22 02:37:55,248 INFO L413 NwaCegarLoop]: 859 mSDtfsCounter, 5698 mSDsluCounter, 2945 mSDsCounter, 0 mSdLazyCounter, 2781 mSolverCounterSat, 184 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5698 SdHoareTripleChecker+Valid, 3804 SdHoareTripleChecker+Invalid, 2965 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 184 IncrementalHoareTripleChecker+Valid, 2781 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:37:55,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5698 Valid, 3804 Invalid, 2965 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [184 Valid, 2781 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-22 02:37:55,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2776 states. [2022-11-22 02:37:55,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2776 to 1068. [2022-11-22 02:37:55,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1068 states, 1047 states have (on average 1.2970391595033428) internal successors, (1358), 1067 states have internal predecessors, (1358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:37:55,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1068 states to 1068 states and 1358 transitions. [2022-11-22 02:37:55,962 INFO L78 Accepts]: Start accepts. Automaton has 1068 states and 1358 transitions. Word has length 118 [2022-11-22 02:37:55,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:37:55,962 INFO L495 AbstractCegarLoop]: Abstraction has 1068 states and 1358 transitions. [2022-11-22 02:37:55,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.727272727272727) internal successors, (118), 10 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) [2022-11-22 02:37:55,962 INFO L276 IsEmpty]: Start isEmpty. Operand 1068 states and 1358 transitions. [2022-11-22 02:37:55,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-11-22 02:37:55,963 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:37:55,963 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] [2022-11-22 02:37:55,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-11-22 02:37:55,964 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:37:55,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:37:55,964 INFO L85 PathProgramCache]: Analyzing trace with hash -1838916858, now seen corresponding path program 1 times [2022-11-22 02:37:55,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:37:55,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427809062] [2022-11-22 02:37:55,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:37:55,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:37:56,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:37:56,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:37:56,364 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:37:56,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427809062] [2022-11-22 02:37:56,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427809062] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:37:56,366 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:37:56,367 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:37:56,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210897102] [2022-11-22 02:37:56,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:37:56,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:37:56,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:37:56,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:37:56,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:37:56,368 INFO L87 Difference]: Start difference. First operand 1068 states and 1358 transitions. Second operand has 8 states, 8 states have (on average 14.75) internal successors, (118), 7 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) [2022-11-22 02:38:00,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:38:00,331 INFO L93 Difference]: Finished difference Result 1958 states and 2504 transitions. [2022-11-22 02:38:00,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:38:00,332 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.75) internal successors, (118), 7 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 [2022-11-22 02:38:00,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:38:00,334 INFO L225 Difference]: With dead ends: 1958 [2022-11-22 02:38:00,334 INFO L226 Difference]: Without dead ends: 1820 [2022-11-22 02:38:00,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2022-11-22 02:38:00,335 INFO L413 NwaCegarLoop]: 659 mSDtfsCounter, 2838 mSDsluCounter, 2080 mSDsCounter, 0 mSdLazyCounter, 1794 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2838 SdHoareTripleChecker+Valid, 2739 SdHoareTripleChecker+Invalid, 1799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:38:00,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2838 Valid, 2739 Invalid, 1799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1794 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-22 02:38:00,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1820 states. [2022-11-22 02:38:01,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1820 to 1068. [2022-11-22 02:38:01,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1068 states, 1047 states have (on average 1.2951289398280803) internal successors, (1356), 1067 states have internal predecessors, (1356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:38:01,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1068 states to 1068 states and 1356 transitions. [2022-11-22 02:38:01,122 INFO L78 Accepts]: Start accepts. Automaton has 1068 states and 1356 transitions. Word has length 118 [2022-11-22 02:38:01,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:38:01,122 INFO L495 AbstractCegarLoop]: Abstraction has 1068 states and 1356 transitions. [2022-11-22 02:38:01,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.75) internal successors, (118), 7 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) [2022-11-22 02:38:01,122 INFO L276 IsEmpty]: Start isEmpty. Operand 1068 states and 1356 transitions. [2022-11-22 02:38:01,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-11-22 02:38:01,123 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:38:01,123 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:38:01,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-11-22 02:38:01,124 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:38:01,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:38:01,124 INFO L85 PathProgramCache]: Analyzing trace with hash 1530313190, now seen corresponding path program 1 times [2022-11-22 02:38:01,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:38:01,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414647811] [2022-11-22 02:38:01,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:38:01,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:38:01,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:38:01,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:38:01,485 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:38:01,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414647811] [2022-11-22 02:38:01,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414647811] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:38:01,485 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:38:01,485 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:38:01,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816556390] [2022-11-22 02:38:01,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:38:01,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:38:01,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:38:01,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:38:01,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:38:01,486 INFO L87 Difference]: Start difference. First operand 1068 states and 1356 transitions. Second operand has 8 states, 8 states have (on average 14.75) internal successors, (118), 7 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) [2022-11-22 02:38:05,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:38:05,533 INFO L93 Difference]: Finished difference Result 1864 states and 2363 transitions. [2022-11-22 02:38:05,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:38:05,533 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.75) internal successors, (118), 7 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 [2022-11-22 02:38:05,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:38:05,535 INFO L225 Difference]: With dead ends: 1864 [2022-11-22 02:38:05,535 INFO L226 Difference]: Without dead ends: 1746 [2022-11-22 02:38:05,555 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2022-11-22 02:38:05,556 INFO L413 NwaCegarLoop]: 596 mSDtfsCounter, 2873 mSDsluCounter, 1803 mSDsCounter, 0 mSdLazyCounter, 1711 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2873 SdHoareTripleChecker+Valid, 2399 SdHoareTripleChecker+Invalid, 1715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1711 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:38:05,556 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2873 Valid, 2399 Invalid, 1715 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1711 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-22 02:38:05,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1746 states. [2022-11-22 02:38:06,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1746 to 1068. [2022-11-22 02:38:06,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1068 states, 1047 states have (on average 1.2932187201528176) internal successors, (1354), 1067 states have internal predecessors, (1354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:38:06,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1068 states to 1068 states and 1354 transitions. [2022-11-22 02:38:06,379 INFO L78 Accepts]: Start accepts. Automaton has 1068 states and 1354 transitions. Word has length 118 [2022-11-22 02:38:06,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:38:06,379 INFO L495 AbstractCegarLoop]: Abstraction has 1068 states and 1354 transitions. [2022-11-22 02:38:06,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.75) internal successors, (118), 7 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) [2022-11-22 02:38:06,380 INFO L276 IsEmpty]: Start isEmpty. Operand 1068 states and 1354 transitions. [2022-11-22 02:38:06,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-11-22 02:38:06,381 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:38:06,381 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:38:06,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-11-22 02:38:06,381 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:38:06,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:38:06,382 INFO L85 PathProgramCache]: Analyzing trace with hash -267490650, now seen corresponding path program 1 times [2022-11-22 02:38:06,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:38:06,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310927281] [2022-11-22 02:38:06,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:38:06,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:38:06,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:38:06,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:38:06,843 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:38:06,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310927281] [2022-11-22 02:38:06,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310927281] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:38:06,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:38:06,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:38:06,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234640455] [2022-11-22 02:38:06,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:38:06,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:38:06,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:38:06,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:38:06,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:38:06,845 INFO L87 Difference]: Start difference. First operand 1068 states and 1354 transitions. Second operand has 8 states, 8 states have (on average 14.75) internal successors, (118), 7 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) [2022-11-22 02:38:10,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:38:10,801 INFO L93 Difference]: Finished difference Result 1864 states and 2361 transitions. [2022-11-22 02:38:10,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:38:10,802 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.75) internal successors, (118), 7 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 [2022-11-22 02:38:10,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:38:10,805 INFO L225 Difference]: With dead ends: 1864 [2022-11-22 02:38:10,805 INFO L226 Difference]: Without dead ends: 1746 [2022-11-22 02:38:10,806 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2022-11-22 02:38:10,806 INFO L413 NwaCegarLoop]: 596 mSDtfsCounter, 2870 mSDsluCounter, 1803 mSDsCounter, 0 mSdLazyCounter, 1707 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2870 SdHoareTripleChecker+Valid, 2399 SdHoareTripleChecker+Invalid, 1711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1707 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:38:10,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2870 Valid, 2399 Invalid, 1711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1707 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-22 02:38:10,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1746 states. [2022-11-22 02:38:11,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1746 to 1068. [2022-11-22 02:38:11,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1068 states, 1047 states have (on average 1.2913085004775549) internal successors, (1352), 1067 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:38:11,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1068 states to 1068 states and 1352 transitions. [2022-11-22 02:38:11,636 INFO L78 Accepts]: Start accepts. Automaton has 1068 states and 1352 transitions. Word has length 118 [2022-11-22 02:38:11,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:38:11,636 INFO L495 AbstractCegarLoop]: Abstraction has 1068 states and 1352 transitions. [2022-11-22 02:38:11,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.75) internal successors, (118), 7 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) [2022-11-22 02:38:11,636 INFO L276 IsEmpty]: Start isEmpty. Operand 1068 states and 1352 transitions. [2022-11-22 02:38:11,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-11-22 02:38:11,638 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:38:11,638 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] [2022-11-22 02:38:11,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-11-22 02:38:11,638 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:38:11,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:38:11,639 INFO L85 PathProgramCache]: Analyzing trace with hash -655825178, now seen corresponding path program 1 times [2022-11-22 02:38:11,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:38:11,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600084109] [2022-11-22 02:38:11,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:38:11,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:38:11,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:38:11,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:38:11,970 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:38:11,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600084109] [2022-11-22 02:38:11,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600084109] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:38:11,970 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:38:11,970 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:38:11,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090245114] [2022-11-22 02:38:11,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:38:11,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:38:11,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:38:11,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:38:11,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:38:11,971 INFO L87 Difference]: Start difference. First operand 1068 states and 1352 transitions. Second operand has 8 states, 8 states have (on average 14.75) internal successors, (118), 7 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) [2022-11-22 02:38:15,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:38:15,999 INFO L93 Difference]: Finished difference Result 1864 states and 2359 transitions. [2022-11-22 02:38:16,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:38:16,000 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.75) internal successors, (118), 7 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 [2022-11-22 02:38:16,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:38:16,002 INFO L225 Difference]: With dead ends: 1864 [2022-11-22 02:38:16,002 INFO L226 Difference]: Without dead ends: 1746 [2022-11-22 02:38:16,003 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2022-11-22 02:38:16,003 INFO L413 NwaCegarLoop]: 597 mSDtfsCounter, 2866 mSDsluCounter, 1806 mSDsCounter, 0 mSdLazyCounter, 1702 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2866 SdHoareTripleChecker+Valid, 2403 SdHoareTripleChecker+Invalid, 1706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:38:16,003 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2866 Valid, 2403 Invalid, 1706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1702 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-22 02:38:16,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1746 states. [2022-11-22 02:38:16,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1746 to 1068. [2022-11-22 02:38:16,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1068 states, 1047 states have (on average 1.2893982808022924) internal successors, (1350), 1067 states have internal predecessors, (1350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:38:16,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1068 states to 1068 states and 1350 transitions. [2022-11-22 02:38:16,750 INFO L78 Accepts]: Start accepts. Automaton has 1068 states and 1350 transitions. Word has length 118 [2022-11-22 02:38:16,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:38:16,750 INFO L495 AbstractCegarLoop]: Abstraction has 1068 states and 1350 transitions. [2022-11-22 02:38:16,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.75) internal successors, (118), 7 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) [2022-11-22 02:38:16,751 INFO L276 IsEmpty]: Start isEmpty. Operand 1068 states and 1350 transitions. [2022-11-22 02:38:16,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-11-22 02:38:16,752 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:38:16,752 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] [2022-11-22 02:38:16,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-11-22 02:38:16,752 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:38:16,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:38:16,753 INFO L85 PathProgramCache]: Analyzing trace with hash 242764230, now seen corresponding path program 1 times [2022-11-22 02:38:16,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:38:16,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589720416] [2022-11-22 02:38:16,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:38:16,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:38:16,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:38:17,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:38:17,268 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:38:17,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589720416] [2022-11-22 02:38:17,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589720416] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:38:17,269 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:38:17,269 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:38:17,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159230875] [2022-11-22 02:38:17,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:38:17,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:38:17,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:38:17,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:38:17,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:38:17,271 INFO L87 Difference]: Start difference. First operand 1068 states and 1350 transitions. Second operand has 8 states, 8 states have (on average 14.75) internal successors, (118), 7 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) [2022-11-22 02:38:21,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:38:21,457 INFO L93 Difference]: Finished difference Result 1864 states and 2357 transitions. [2022-11-22 02:38:21,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:38:21,458 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.75) internal successors, (118), 7 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 [2022-11-22 02:38:21,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:38:21,460 INFO L225 Difference]: With dead ends: 1864 [2022-11-22 02:38:21,460 INFO L226 Difference]: Without dead ends: 1746 [2022-11-22 02:38:21,461 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2022-11-22 02:38:21,461 INFO L413 NwaCegarLoop]: 621 mSDtfsCounter, 2752 mSDsluCounter, 1876 mSDsCounter, 0 mSdLazyCounter, 1827 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2752 SdHoareTripleChecker+Valid, 2497 SdHoareTripleChecker+Invalid, 1830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1827 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:38:21,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2752 Valid, 2497 Invalid, 1830 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1827 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-22 02:38:21,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1746 states. [2022-11-22 02:38:22,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1746 to 1068. [2022-11-22 02:38:22,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1068 states, 1047 states have (on average 1.2874880611270296) internal successors, (1348), 1067 states have internal predecessors, (1348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:38:22,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1068 states to 1068 states and 1348 transitions. [2022-11-22 02:38:22,287 INFO L78 Accepts]: Start accepts. Automaton has 1068 states and 1348 transitions. Word has length 118 [2022-11-22 02:38:22,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:38:22,287 INFO L495 AbstractCegarLoop]: Abstraction has 1068 states and 1348 transitions. [2022-11-22 02:38:22,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.75) internal successors, (118), 7 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) [2022-11-22 02:38:22,288 INFO L276 IsEmpty]: Start isEmpty. Operand 1068 states and 1348 transitions. [2022-11-22 02:38:22,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-11-22 02:38:22,289 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:38:22,289 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] [2022-11-22 02:38:22,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-11-22 02:38:22,289 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:38:22,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:38:22,290 INFO L85 PathProgramCache]: Analyzing trace with hash -627987610, now seen corresponding path program 1 times [2022-11-22 02:38:22,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:38:22,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615148410] [2022-11-22 02:38:22,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:38:22,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:38:22,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:38:22,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:38:22,862 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:38:22,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615148410] [2022-11-22 02:38:22,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615148410] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:38:22,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:38:22,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-22 02:38:22,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272789089] [2022-11-22 02:38:22,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:38:22,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-22 02:38:22,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:38:22,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-22 02:38:22,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-22 02:38:22,863 INFO L87 Difference]: Start difference. First operand 1068 states and 1348 transitions. Second operand has 11 states, 11 states have (on average 10.727272727272727) internal successors, (118), 10 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) [2022-11-22 02:38:29,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:38:29,830 INFO L93 Difference]: Finished difference Result 2436 states and 3111 transitions. [2022-11-22 02:38:29,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-22 02:38:29,831 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.727272727272727) internal successors, (118), 10 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 [2022-11-22 02:38:29,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:38:29,833 INFO L225 Difference]: With dead ends: 2436 [2022-11-22 02:38:29,833 INFO L226 Difference]: Without dead ends: 2318 [2022-11-22 02:38:29,834 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2022-11-22 02:38:29,834 INFO L413 NwaCegarLoop]: 626 mSDtfsCounter, 5107 mSDsluCounter, 2585 mSDsCounter, 0 mSdLazyCounter, 2473 mSolverCounterSat, 187 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5107 SdHoareTripleChecker+Valid, 3211 SdHoareTripleChecker+Invalid, 2660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 187 IncrementalHoareTripleChecker+Valid, 2473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:38:29,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5107 Valid, 3211 Invalid, 2660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [187 Valid, 2473 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-22 02:38:29,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2318 states. [2022-11-22 02:38:30,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2318 to 1078. [2022-11-22 02:38:30,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1078 states, 1057 states have (on average 1.2847682119205297) internal successors, (1358), 1077 states have internal predecessors, (1358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:38:30,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1078 states to 1078 states and 1358 transitions. [2022-11-22 02:38:30,662 INFO L78 Accepts]: Start accepts. Automaton has 1078 states and 1358 transitions. Word has length 118 [2022-11-22 02:38:30,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:38:30,662 INFO L495 AbstractCegarLoop]: Abstraction has 1078 states and 1358 transitions. [2022-11-22 02:38:30,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.727272727272727) internal successors, (118), 10 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) [2022-11-22 02:38:30,663 INFO L276 IsEmpty]: Start isEmpty. Operand 1078 states and 1358 transitions. [2022-11-22 02:38:30,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-11-22 02:38:30,664 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:38:30,664 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] [2022-11-22 02:38:30,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-11-22 02:38:30,664 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:38:30,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:38:30,665 INFO L85 PathProgramCache]: Analyzing trace with hash -934408954, now seen corresponding path program 1 times [2022-11-22 02:38:30,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:38:30,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858169451] [2022-11-22 02:38:30,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:38:30,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:38:30,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:38:31,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:38:31,033 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:38:31,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858169451] [2022-11-22 02:38:31,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858169451] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:38:31,034 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:38:31,034 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:38:31,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243058049] [2022-11-22 02:38:31,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:38:31,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:38:31,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:38:31,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:38:31,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:38:31,035 INFO L87 Difference]: Start difference. First operand 1078 states and 1358 transitions. Second operand has 8 states, 8 states have (on average 14.75) internal successors, (118), 7 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) [2022-11-22 02:38:35,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:38:35,354 INFO L93 Difference]: Finished difference Result 1864 states and 2353 transitions. [2022-11-22 02:38:35,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:38:35,354 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.75) internal successors, (118), 7 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 [2022-11-22 02:38:35,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:38:35,356 INFO L225 Difference]: With dead ends: 1864 [2022-11-22 02:38:35,356 INFO L226 Difference]: Without dead ends: 1746 [2022-11-22 02:38:35,357 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2022-11-22 02:38:35,358 INFO L413 NwaCegarLoop]: 619 mSDtfsCounter, 2755 mSDsluCounter, 1870 mSDsCounter, 0 mSdLazyCounter, 1814 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2755 SdHoareTripleChecker+Valid, 2489 SdHoareTripleChecker+Invalid, 1817 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1814 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:38:35,358 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2755 Valid, 2489 Invalid, 1817 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1814 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-22 02:38:35,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1746 states. [2022-11-22 02:38:36,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1746 to 1078. [2022-11-22 02:38:36,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1078 states, 1057 states have (on average 1.282876064333018) internal successors, (1356), 1077 states have internal predecessors, (1356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:38:36,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1078 states to 1078 states and 1356 transitions. [2022-11-22 02:38:36,229 INFO L78 Accepts]: Start accepts. Automaton has 1078 states and 1356 transitions. Word has length 118 [2022-11-22 02:38:36,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:38:36,229 INFO L495 AbstractCegarLoop]: Abstraction has 1078 states and 1356 transitions. [2022-11-22 02:38:36,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.75) internal successors, (118), 7 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) [2022-11-22 02:38:36,229 INFO L276 IsEmpty]: Start isEmpty. Operand 1078 states and 1356 transitions. [2022-11-22 02:38:36,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-11-22 02:38:36,231 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:38:36,231 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] [2022-11-22 02:38:36,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-11-22 02:38:36,231 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:38:36,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:38:36,232 INFO L85 PathProgramCache]: Analyzing trace with hash -1805160794, now seen corresponding path program 1 times [2022-11-22 02:38:36,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:38:36,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930178050] [2022-11-22 02:38:36,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:38:36,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:38:36,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:38:36,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:38:36,831 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:38:36,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930178050] [2022-11-22 02:38:36,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930178050] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:38:36,832 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:38:36,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-22 02:38:36,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974661031] [2022-11-22 02:38:36,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:38:36,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-22 02:38:36,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:38:36,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-22 02:38:36,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-22 02:38:36,833 INFO L87 Difference]: Start difference. First operand 1078 states and 1356 transitions. Second operand has 11 states, 11 states have (on average 10.727272727272727) internal successors, (118), 10 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) [2022-11-22 02:38:44,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:38:44,042 INFO L93 Difference]: Finished difference Result 2436 states and 3107 transitions. [2022-11-22 02:38:44,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-22 02:38:44,043 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.727272727272727) internal successors, (118), 10 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 [2022-11-22 02:38:44,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:38:44,045 INFO L225 Difference]: With dead ends: 2436 [2022-11-22 02:38:44,045 INFO L226 Difference]: Without dead ends: 2318 [2022-11-22 02:38:44,046 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2022-11-22 02:38:44,046 INFO L413 NwaCegarLoop]: 624 mSDtfsCounter, 5075 mSDsluCounter, 2594 mSDsCounter, 0 mSdLazyCounter, 2459 mSolverCounterSat, 189 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5075 SdHoareTripleChecker+Valid, 3218 SdHoareTripleChecker+Invalid, 2648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 189 IncrementalHoareTripleChecker+Valid, 2459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:38:44,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5075 Valid, 3218 Invalid, 2648 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [189 Valid, 2459 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-22 02:38:44,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2318 states. [2022-11-22 02:38:44,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2318 to 1088. [2022-11-22 02:38:44,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1088 states, 1067 states have (on average 1.2802249297094659) internal successors, (1366), 1087 states have internal predecessors, (1366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:38:44,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1088 states to 1088 states and 1366 transitions. [2022-11-22 02:38:44,932 INFO L78 Accepts]: Start accepts. Automaton has 1088 states and 1366 transitions. Word has length 118 [2022-11-22 02:38:44,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:38:44,932 INFO L495 AbstractCegarLoop]: Abstraction has 1088 states and 1366 transitions. [2022-11-22 02:38:44,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.727272727272727) internal successors, (118), 10 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) [2022-11-22 02:38:44,933 INFO L276 IsEmpty]: Start isEmpty. Operand 1088 states and 1366 transitions. [2022-11-22 02:38:44,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-11-22 02:38:44,934 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:38:44,935 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] [2022-11-22 02:38:44,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-11-22 02:38:44,935 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:38:44,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:38:44,935 INFO L85 PathProgramCache]: Analyzing trace with hash -2128611386, now seen corresponding path program 1 times [2022-11-22 02:38:44,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:38:44,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222320074] [2022-11-22 02:38:44,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:38:44,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:38:45,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:38:45,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:38:45,547 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:38:45,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222320074] [2022-11-22 02:38:45,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222320074] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:38:45,548 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:38:45,548 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-22 02:38:45,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771633851] [2022-11-22 02:38:45,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:38:45,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-22 02:38:45,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:38:45,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-22 02:38:45,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-22 02:38:45,549 INFO L87 Difference]: Start difference. First operand 1088 states and 1366 transitions. Second operand has 11 states, 11 states have (on average 10.727272727272727) internal successors, (118), 10 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) [2022-11-22 02:38:53,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:38:53,419 INFO L93 Difference]: Finished difference Result 2612 states and 3345 transitions. [2022-11-22 02:38:53,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-22 02:38:53,420 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.727272727272727) internal successors, (118), 10 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 [2022-11-22 02:38:53,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:38:53,423 INFO L225 Difference]: With dead ends: 2612 [2022-11-22 02:38:53,423 INFO L226 Difference]: Without dead ends: 2480 [2022-11-22 02:38:53,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=242, Invalid=688, Unknown=0, NotChecked=0, Total=930 [2022-11-22 02:38:53,424 INFO L413 NwaCegarLoop]: 750 mSDtfsCounter, 4697 mSDsluCounter, 2460 mSDsCounter, 0 mSdLazyCounter, 2434 mSolverCounterSat, 171 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4697 SdHoareTripleChecker+Valid, 3210 SdHoareTripleChecker+Invalid, 2605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 171 IncrementalHoareTripleChecker+Valid, 2434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:38:53,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4697 Valid, 3210 Invalid, 2605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [171 Valid, 2434 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-22 02:38:53,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2480 states. [2022-11-22 02:38:54,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2480 to 1098. [2022-11-22 02:38:54,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1098 states, 1077 states have (on average 1.2776230269266482) internal successors, (1376), 1097 states have internal predecessors, (1376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:38:54,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1098 states to 1098 states and 1376 transitions. [2022-11-22 02:38:54,397 INFO L78 Accepts]: Start accepts. Automaton has 1098 states and 1376 transitions. Word has length 118 [2022-11-22 02:38:54,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:38:54,397 INFO L495 AbstractCegarLoop]: Abstraction has 1098 states and 1376 transitions. [2022-11-22 02:38:54,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.727272727272727) internal successors, (118), 10 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) [2022-11-22 02:38:54,397 INFO L276 IsEmpty]: Start isEmpty. Operand 1098 states and 1376 transitions. [2022-11-22 02:38:54,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-11-22 02:38:54,398 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:38:54,398 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] [2022-11-22 02:38:54,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-11-22 02:38:54,398 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:38:54,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:38:54,399 INFO L85 PathProgramCache]: Analyzing trace with hash -2127835810, now seen corresponding path program 1 times [2022-11-22 02:38:54,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:38:54,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229283266] [2022-11-22 02:38:54,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:38:54,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:38:54,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:38:54,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:38:54,723 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:38:54,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229283266] [2022-11-22 02:38:54,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229283266] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:38:54,724 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:38:54,724 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:38:54,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620163900] [2022-11-22 02:38:54,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:38:54,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:38:54,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:38:54,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:38:54,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:38:54,725 INFO L87 Difference]: Start difference. First operand 1098 states and 1376 transitions. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:38:59,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:38:59,159 INFO L93 Difference]: Finished difference Result 1878 states and 2364 transitions. [2022-11-22 02:38:59,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:38:59,160 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 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 119 [2022-11-22 02:38:59,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:38:59,162 INFO L225 Difference]: With dead ends: 1878 [2022-11-22 02:38:59,162 INFO L226 Difference]: Without dead ends: 1756 [2022-11-22 02:38:59,162 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2022-11-22 02:38:59,163 INFO L413 NwaCegarLoop]: 601 mSDtfsCounter, 2862 mSDsluCounter, 1806 mSDsCounter, 0 mSdLazyCounter, 1675 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2862 SdHoareTripleChecker+Valid, 2407 SdHoareTripleChecker+Invalid, 1679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1675 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:38:59,163 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2862 Valid, 2407 Invalid, 1679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1675 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-22 02:38:59,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1756 states. [2022-11-22 02:39:00,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1756 to 1098. [2022-11-22 02:39:00,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1098 states, 1077 states have (on average 1.275766016713092) internal successors, (1374), 1097 states have internal predecessors, (1374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:39:00,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1098 states to 1098 states and 1374 transitions. [2022-11-22 02:39:00,085 INFO L78 Accepts]: Start accepts. Automaton has 1098 states and 1374 transitions. Word has length 119 [2022-11-22 02:39:00,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:39:00,085 INFO L495 AbstractCegarLoop]: Abstraction has 1098 states and 1374 transitions. [2022-11-22 02:39:00,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:39:00,086 INFO L276 IsEmpty]: Start isEmpty. Operand 1098 states and 1374 transitions. [2022-11-22 02:39:00,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-11-22 02:39:00,087 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:39:00,087 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] [2022-11-22 02:39:00,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-11-22 02:39:00,087 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:39:00,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:39:00,087 INFO L85 PathProgramCache]: Analyzing trace with hash 1345223326, now seen corresponding path program 1 times [2022-11-22 02:39:00,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:39:00,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653008472] [2022-11-22 02:39:00,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:39:00,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:39:00,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:39:00,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:39:00,409 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:39:00,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653008472] [2022-11-22 02:39:00,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653008472] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:39:00,409 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:39:00,409 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:39:00,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61092655] [2022-11-22 02:39:00,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:39:00,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:39:00,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:39:00,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:39:00,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:39:00,410 INFO L87 Difference]: Start difference. First operand 1098 states and 1374 transitions. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:39:05,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:39:05,241 INFO L93 Difference]: Finished difference Result 1979 states and 2504 transitions. [2022-11-22 02:39:05,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:39:05,241 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 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 119 [2022-11-22 02:39:05,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:39:05,243 INFO L225 Difference]: With dead ends: 1979 [2022-11-22 02:39:05,243 INFO L226 Difference]: Without dead ends: 1840 [2022-11-22 02:39:05,243 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:39:05,244 INFO L413 NwaCegarLoop]: 724 mSDtfsCounter, 1769 mSDsluCounter, 2171 mSDsCounter, 0 mSdLazyCounter, 2064 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1769 SdHoareTripleChecker+Valid, 2895 SdHoareTripleChecker+Invalid, 2067 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2064 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-22 02:39:05,244 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1769 Valid, 2895 Invalid, 2067 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2064 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-22 02:39:05,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1840 states. [2022-11-22 02:39:06,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1840 to 1098. [2022-11-22 02:39:06,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1098 states, 1077 states have (on average 1.2739090064995358) internal successors, (1372), 1097 states have internal predecessors, (1372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:39:06,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1098 states to 1098 states and 1372 transitions. [2022-11-22 02:39:06,201 INFO L78 Accepts]: Start accepts. Automaton has 1098 states and 1372 transitions. Word has length 119 [2022-11-22 02:39:06,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:39:06,201 INFO L495 AbstractCegarLoop]: Abstraction has 1098 states and 1372 transitions. [2022-11-22 02:39:06,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:39:06,201 INFO L276 IsEmpty]: Start isEmpty. Operand 1098 states and 1372 transitions. [2022-11-22 02:39:06,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-11-22 02:39:06,202 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:39:06,202 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] [2022-11-22 02:39:06,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-11-22 02:39:06,203 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:39:06,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:39:06,203 INFO L85 PathProgramCache]: Analyzing trace with hash -2109466594, now seen corresponding path program 1 times [2022-11-22 02:39:06,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:39:06,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970575470] [2022-11-22 02:39:06,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:39:06,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:39:06,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:39:06,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:39:06,474 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:39:06,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970575470] [2022-11-22 02:39:06,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970575470] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:39:06,474 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:39:06,474 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:39:06,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867298992] [2022-11-22 02:39:06,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:39:06,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:39:06,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:39:06,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:39:06,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:39:06,475 INFO L87 Difference]: Start difference. First operand 1098 states and 1372 transitions. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:39:10,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:39:10,853 INFO L93 Difference]: Finished difference Result 1878 states and 2360 transitions. [2022-11-22 02:39:10,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:39:10,854 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 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 119 [2022-11-22 02:39:10,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:39:10,856 INFO L225 Difference]: With dead ends: 1878 [2022-11-22 02:39:10,856 INFO L226 Difference]: Without dead ends: 1756 [2022-11-22 02:39:10,856 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:39:10,856 INFO L413 NwaCegarLoop]: 636 mSDtfsCounter, 1924 mSDsluCounter, 1908 mSDsCounter, 0 mSdLazyCounter, 1820 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1924 SdHoareTripleChecker+Valid, 2544 SdHoareTripleChecker+Invalid, 1823 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1820 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:39:10,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1924 Valid, 2544 Invalid, 1823 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1820 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-22 02:39:10,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1756 states. [2022-11-22 02:39:11,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1756 to 1098. [2022-11-22 02:39:11,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1098 states, 1077 states have (on average 1.2720519962859795) internal successors, (1370), 1097 states have internal predecessors, (1370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:39:11,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1098 states to 1098 states and 1370 transitions. [2022-11-22 02:39:11,757 INFO L78 Accepts]: Start accepts. Automaton has 1098 states and 1370 transitions. Word has length 119 [2022-11-22 02:39:11,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:39:11,757 INFO L495 AbstractCegarLoop]: Abstraction has 1098 states and 1370 transitions. [2022-11-22 02:39:11,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:39:11,758 INFO L276 IsEmpty]: Start isEmpty. Operand 1098 states and 1370 transitions. [2022-11-22 02:39:11,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-11-22 02:39:11,759 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:39:11,759 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] [2022-11-22 02:39:11,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-11-22 02:39:11,759 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:39:11,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:39:11,759 INFO L85 PathProgramCache]: Analyzing trace with hash -1309725858, now seen corresponding path program 1 times [2022-11-22 02:39:11,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:39:11,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410678407] [2022-11-22 02:39:11,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:39:11,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:39:11,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:39:12,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:39:12,037 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:39:12,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410678407] [2022-11-22 02:39:12,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410678407] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:39:12,038 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:39:12,038 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:39:12,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055820688] [2022-11-22 02:39:12,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:39:12,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:39:12,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:39:12,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:39:12,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:39:12,039 INFO L87 Difference]: Start difference. First operand 1098 states and 1370 transitions. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:39:16,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:39:16,227 INFO L93 Difference]: Finished difference Result 1878 states and 2358 transitions. [2022-11-22 02:39:16,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:39:16,227 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 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 119 [2022-11-22 02:39:16,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:39:16,229 INFO L225 Difference]: With dead ends: 1878 [2022-11-22 02:39:16,229 INFO L226 Difference]: Without dead ends: 1756 [2022-11-22 02:39:16,229 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:39:16,229 INFO L413 NwaCegarLoop]: 637 mSDtfsCounter, 2753 mSDsluCounter, 1877 mSDsCounter, 0 mSdLazyCounter, 1787 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2753 SdHoareTripleChecker+Valid, 2514 SdHoareTripleChecker+Invalid, 1791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1787 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:39:16,230 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2753 Valid, 2514 Invalid, 1791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1787 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-22 02:39:16,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1756 states. [2022-11-22 02:39:17,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1756 to 1098. [2022-11-22 02:39:17,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1098 states, 1077 states have (on average 1.2701949860724233) internal successors, (1368), 1097 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) [2022-11-22 02:39:17,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1098 states to 1098 states and 1368 transitions. [2022-11-22 02:39:17,136 INFO L78 Accepts]: Start accepts. Automaton has 1098 states and 1368 transitions. Word has length 119 [2022-11-22 02:39:17,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:39:17,136 INFO L495 AbstractCegarLoop]: Abstraction has 1098 states and 1368 transitions. [2022-11-22 02:39:17,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:39:17,136 INFO L276 IsEmpty]: Start isEmpty. Operand 1098 states and 1368 transitions. [2022-11-22 02:39:17,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-11-22 02:39:17,137 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:39:17,138 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] [2022-11-22 02:39:17,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-11-22 02:39:17,138 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:39:17,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:39:17,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1717068739, now seen corresponding path program 1 times [2022-11-22 02:39:17,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:39:17,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018646110] [2022-11-22 02:39:17,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:39:17,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:39:17,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:39:17,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:39:17,439 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:39:17,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018646110] [2022-11-22 02:39:17,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018646110] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:39:17,439 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:39:17,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:39:17,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617276191] [2022-11-22 02:39:17,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:39:17,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:39:17,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:39:17,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:39:17,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:39:17,440 INFO L87 Difference]: Start difference. First operand 1098 states and 1368 transitions. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:39:22,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:39:22,096 INFO L93 Difference]: Finished difference Result 2212 states and 2796 transitions. [2022-11-22 02:39:22,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:39:22,096 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 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 119 [2022-11-22 02:39:22,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:39:22,098 INFO L225 Difference]: With dead ends: 2212 [2022-11-22 02:39:22,098 INFO L226 Difference]: Without dead ends: 1956 [2022-11-22 02:39:22,098 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:39:22,099 INFO L413 NwaCegarLoop]: 792 mSDtfsCounter, 2572 mSDsluCounter, 2253 mSDsCounter, 0 mSdLazyCounter, 2118 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2572 SdHoareTripleChecker+Valid, 3045 SdHoareTripleChecker+Invalid, 2121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:39:22,099 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2572 Valid, 3045 Invalid, 2121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2118 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-22 02:39:22,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1956 states. [2022-11-22 02:39:22,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1956 to 1088. [2022-11-22 02:39:22,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1088 states, 1067 states have (on average 1.2708528584817245) internal successors, (1356), 1087 states have internal predecessors, (1356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:39:22,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1088 states to 1088 states and 1356 transitions. [2022-11-22 02:39:22,975 INFO L78 Accepts]: Start accepts. Automaton has 1088 states and 1356 transitions. Word has length 119 [2022-11-22 02:39:22,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:39:22,976 INFO L495 AbstractCegarLoop]: Abstraction has 1088 states and 1356 transitions. [2022-11-22 02:39:22,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:39:22,976 INFO L276 IsEmpty]: Start isEmpty. Operand 1088 states and 1356 transitions. [2022-11-22 02:39:22,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-11-22 02:39:22,977 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:39:22,977 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:39:22,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-11-22 02:39:22,977 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:39:22,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:39:22,977 INFO L85 PathProgramCache]: Analyzing trace with hash 776473502, now seen corresponding path program 1 times [2022-11-22 02:39:22,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:39:22,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112127402] [2022-11-22 02:39:22,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:39:22,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:39:23,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:39:23,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:39:23,279 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:39:23,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112127402] [2022-11-22 02:39:23,280 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112127402] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:39:23,280 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:39:23,280 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:39:23,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283065490] [2022-11-22 02:39:23,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:39:23,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:39:23,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:39:23,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:39:23,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:39:23,281 INFO L87 Difference]: Start difference. First operand 1088 states and 1356 transitions. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:39:27,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:39:27,479 INFO L93 Difference]: Finished difference Result 1752 states and 2188 transitions. [2022-11-22 02:39:27,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:39:27,480 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 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 119 [2022-11-22 02:39:27,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:39:27,481 INFO L225 Difference]: With dead ends: 1752 [2022-11-22 02:39:27,481 INFO L226 Difference]: Without dead ends: 1746 [2022-11-22 02:39:27,482 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:39:27,482 INFO L413 NwaCegarLoop]: 616 mSDtfsCounter, 2800 mSDsluCounter, 1851 mSDsCounter, 0 mSdLazyCounter, 1675 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2800 SdHoareTripleChecker+Valid, 2467 SdHoareTripleChecker+Invalid, 1679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1675 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:39:27,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2800 Valid, 2467 Invalid, 1679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1675 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-22 02:39:27,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1746 states. [2022-11-22 02:39:28,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1746 to 1088. [2022-11-22 02:39:28,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1088 states, 1067 states have (on average 1.2689784442361762) internal successors, (1354), 1087 states have internal predecessors, (1354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:39:28,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1088 states to 1088 states and 1354 transitions. [2022-11-22 02:39:28,412 INFO L78 Accepts]: Start accepts. Automaton has 1088 states and 1354 transitions. Word has length 119 [2022-11-22 02:39:28,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:39:28,412 INFO L495 AbstractCegarLoop]: Abstraction has 1088 states and 1354 transitions. [2022-11-22 02:39:28,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:39:28,412 INFO L276 IsEmpty]: Start isEmpty. Operand 1088 states and 1354 transitions. [2022-11-22 02:39:28,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-11-22 02:39:28,413 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:39:28,413 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] [2022-11-22 02:39:28,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-11-22 02:39:28,414 INFO L420 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:39:28,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:39:28,415 INFO L85 PathProgramCache]: Analyzing trace with hash 329952862, now seen corresponding path program 1 times [2022-11-22 02:39:28,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:39:28,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987153296] [2022-11-22 02:39:28,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:39:28,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:39:28,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:39:28,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:39:28,737 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:39:28,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987153296] [2022-11-22 02:39:28,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987153296] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:39:28,737 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:39:28,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:39:28,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025534757] [2022-11-22 02:39:28,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:39:28,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:39:28,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:39:28,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:39:28,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:39:28,739 INFO L87 Difference]: Start difference. First operand 1088 states and 1354 transitions. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:39:33,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:39:33,023 INFO L93 Difference]: Finished difference Result 1752 states and 2186 transitions. [2022-11-22 02:39:33,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:39:33,023 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 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 119 [2022-11-22 02:39:33,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:39:33,025 INFO L225 Difference]: With dead ends: 1752 [2022-11-22 02:39:33,025 INFO L226 Difference]: Without dead ends: 1746 [2022-11-22 02:39:33,025 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:39:33,025 INFO L413 NwaCegarLoop]: 637 mSDtfsCounter, 1911 mSDsluCounter, 1879 mSDsCounter, 0 mSdLazyCounter, 1771 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1911 SdHoareTripleChecker+Valid, 2516 SdHoareTripleChecker+Invalid, 1775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:39:33,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1911 Valid, 2516 Invalid, 1775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1771 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-22 02:39:33,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1746 states. [2022-11-22 02:39:33,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1746 to 1088. [2022-11-22 02:39:33,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1088 states, 1067 states have (on average 1.267104029990628) internal successors, (1352), 1087 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:39:33,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1088 states to 1088 states and 1352 transitions. [2022-11-22 02:39:33,941 INFO L78 Accepts]: Start accepts. Automaton has 1088 states and 1352 transitions. Word has length 119 [2022-11-22 02:39:33,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:39:33,941 INFO L495 AbstractCegarLoop]: Abstraction has 1088 states and 1352 transitions. [2022-11-22 02:39:33,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:39:33,942 INFO L276 IsEmpty]: Start isEmpty. Operand 1088 states and 1352 transitions. [2022-11-22 02:39:33,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-11-22 02:39:33,943 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:39:33,943 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] [2022-11-22 02:39:33,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-11-22 02:39:33,943 INFO L420 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:39:33,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:39:33,944 INFO L85 PathProgramCache]: Analyzing trace with hash -1921490242, now seen corresponding path program 1 times [2022-11-22 02:39:33,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:39:33,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863303562] [2022-11-22 02:39:33,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:39:33,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:39:33,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:39:34,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:39:34,226 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:39:34,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863303562] [2022-11-22 02:39:34,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863303562] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:39:34,226 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:39:34,226 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:39:34,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380700280] [2022-11-22 02:39:34,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:39:34,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:39:34,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:39:34,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:39:34,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:39:34,228 INFO L87 Difference]: Start difference. First operand 1088 states and 1352 transitions. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:39:38,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:39:38,533 INFO L93 Difference]: Finished difference Result 1752 states and 2182 transitions. [2022-11-22 02:39:38,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:39:38,534 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 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 119 [2022-11-22 02:39:38,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:39:38,536 INFO L225 Difference]: With dead ends: 1752 [2022-11-22 02:39:38,536 INFO L226 Difference]: Without dead ends: 1746 [2022-11-22 02:39:38,536 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:39:38,537 INFO L413 NwaCegarLoop]: 637 mSDtfsCounter, 1909 mSDsluCounter, 1879 mSDsCounter, 0 mSdLazyCounter, 1762 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1909 SdHoareTripleChecker+Valid, 2516 SdHoareTripleChecker+Invalid, 1766 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:39:38,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1909 Valid, 2516 Invalid, 1766 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1762 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-22 02:39:38,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1746 states. [2022-11-22 02:39:39,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1746 to 1088. [2022-11-22 02:39:39,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1088 states, 1067 states have (on average 1.2652296157450797) internal successors, (1350), 1087 states have internal predecessors, (1350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:39:39,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1088 states to 1088 states and 1350 transitions. [2022-11-22 02:39:39,539 INFO L78 Accepts]: Start accepts. Automaton has 1088 states and 1350 transitions. Word has length 119 [2022-11-22 02:39:39,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:39:39,540 INFO L495 AbstractCegarLoop]: Abstraction has 1088 states and 1350 transitions. [2022-11-22 02:39:39,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:39:39,540 INFO L276 IsEmpty]: Start isEmpty. Operand 1088 states and 1350 transitions. [2022-11-22 02:39:39,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-11-22 02:39:39,541 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:39:39,541 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] [2022-11-22 02:39:39,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-11-22 02:39:39,541 INFO L420 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:39:39,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:39:39,542 INFO L85 PathProgramCache]: Analyzing trace with hash 1673582321, now seen corresponding path program 1 times [2022-11-22 02:39:39,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:39:39,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729647072] [2022-11-22 02:39:39,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:39:39,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:39:39,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:39:39,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:39:39,846 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:39:39,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729647072] [2022-11-22 02:39:39,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729647072] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:39:39,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:39:39,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:39:39,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368740623] [2022-11-22 02:39:39,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:39:39,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:39:39,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:39:39,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:39:39,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:39:39,848 INFO L87 Difference]: Start difference. First operand 1088 states and 1350 transitions. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:39:44,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:39:44,202 INFO L93 Difference]: Finished difference Result 1864 states and 2327 transitions. [2022-11-22 02:39:44,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:39:44,202 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 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 119 [2022-11-22 02:39:44,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:39:44,204 INFO L225 Difference]: With dead ends: 1864 [2022-11-22 02:39:44,204 INFO L226 Difference]: Without dead ends: 1746 [2022-11-22 02:39:44,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:39:44,205 INFO L413 NwaCegarLoop]: 639 mSDtfsCounter, 1911 mSDsluCounter, 1883 mSDsCounter, 0 mSdLazyCounter, 1761 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1911 SdHoareTripleChecker+Valid, 2522 SdHoareTripleChecker+Invalid, 1765 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:39:44,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1911 Valid, 2522 Invalid, 1765 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1761 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-22 02:39:44,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1746 states. [2022-11-22 02:39:45,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1746 to 1078. [2022-11-22 02:39:45,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1078 states, 1057 states have (on average 1.2658467360454115) internal successors, (1338), 1077 states have internal predecessors, (1338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:39:45,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1078 states to 1078 states and 1338 transitions. [2022-11-22 02:39:45,171 INFO L78 Accepts]: Start accepts. Automaton has 1078 states and 1338 transitions. Word has length 119 [2022-11-22 02:39:45,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:39:45,172 INFO L495 AbstractCegarLoop]: Abstraction has 1078 states and 1338 transitions. [2022-11-22 02:39:45,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:39:45,172 INFO L276 IsEmpty]: Start isEmpty. Operand 1078 states and 1338 transitions. [2022-11-22 02:39:45,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-11-22 02:39:45,173 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:39:45,173 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] [2022-11-22 02:39:45,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-11-22 02:39:45,173 INFO L420 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:39:45,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:39:45,173 INFO L85 PathProgramCache]: Analyzing trace with hash 152804478, now seen corresponding path program 1 times [2022-11-22 02:39:45,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:39:45,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201535722] [2022-11-22 02:39:45,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:39:45,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:39:45,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:39:45,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:39:45,660 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:39:45,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201535722] [2022-11-22 02:39:45,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201535722] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:39:45,661 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:39:45,661 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-22 02:39:45,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963361257] [2022-11-22 02:39:45,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:39:45,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-22 02:39:45,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:39:45,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-22 02:39:45,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-22 02:39:45,662 INFO L87 Difference]: Start difference. First operand 1078 states and 1338 transitions. Second operand has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 10 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:39:52,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:39:52,862 INFO L93 Difference]: Finished difference Result 2312 states and 2913 transitions. [2022-11-22 02:39:52,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-22 02:39:52,863 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 10 states have internal predecessors, (119), 0 states have call successors, (0), 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 119 [2022-11-22 02:39:52,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:39:52,865 INFO L225 Difference]: With dead ends: 2312 [2022-11-22 02:39:52,865 INFO L226 Difference]: Without dead ends: 2306 [2022-11-22 02:39:52,865 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2022-11-22 02:39:52,866 INFO L413 NwaCegarLoop]: 641 mSDtfsCounter, 5067 mSDsluCounter, 2049 mSDsCounter, 0 mSdLazyCounter, 1959 mSolverCounterSat, 187 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5067 SdHoareTripleChecker+Valid, 2690 SdHoareTripleChecker+Invalid, 2146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 187 IncrementalHoareTripleChecker+Valid, 1959 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-22 02:39:52,866 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5067 Valid, 2690 Invalid, 2146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [187 Valid, 1959 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-22 02:39:52,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2306 states. [2022-11-22 02:39:53,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2306 to 1088. [2022-11-22 02:39:53,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1088 states, 1067 states have (on average 1.2633552014995313) internal successors, (1348), 1087 states have internal predecessors, (1348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:39:53,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1088 states to 1088 states and 1348 transitions. [2022-11-22 02:39:53,828 INFO L78 Accepts]: Start accepts. Automaton has 1088 states and 1348 transitions. Word has length 119 [2022-11-22 02:39:53,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:39:53,828 INFO L495 AbstractCegarLoop]: Abstraction has 1088 states and 1348 transitions. [2022-11-22 02:39:53,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 10 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:39:53,829 INFO L276 IsEmpty]: Start isEmpty. Operand 1088 states and 1348 transitions. [2022-11-22 02:39:53,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-11-22 02:39:53,830 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:39:53,830 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] [2022-11-22 02:39:53,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-11-22 02:39:53,830 INFO L420 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:39:53,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:39:53,830 INFO L85 PathProgramCache]: Analyzing trace with hash -544250275, now seen corresponding path program 1 times [2022-11-22 02:39:53,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:39:53,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553054877] [2022-11-22 02:39:53,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:39:53,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:39:53,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:39:54,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:39:54,123 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:39:54,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553054877] [2022-11-22 02:39:54,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553054877] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:39:54,123 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:39:54,123 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:39:54,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647726101] [2022-11-22 02:39:54,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:39:54,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:39:54,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:39:54,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:39:54,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:39:54,124 INFO L87 Difference]: Start difference. First operand 1088 states and 1348 transitions. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:39:58,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:39:58,598 INFO L93 Difference]: Finished difference Result 1864 states and 2323 transitions. [2022-11-22 02:39:58,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:39:58,599 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 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 119 [2022-11-22 02:39:58,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:39:58,600 INFO L225 Difference]: With dead ends: 1864 [2022-11-22 02:39:58,601 INFO L226 Difference]: Without dead ends: 1746 [2022-11-22 02:39:58,601 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:39:58,601 INFO L413 NwaCegarLoop]: 637 mSDtfsCounter, 1902 mSDsluCounter, 1885 mSDsCounter, 0 mSdLazyCounter, 1753 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1902 SdHoareTripleChecker+Valid, 2522 SdHoareTripleChecker+Invalid, 1757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1753 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:39:58,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1902 Valid, 2522 Invalid, 1757 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1753 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-22 02:39:58,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1746 states. [2022-11-22 02:39:59,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1746 to 1078. [2022-11-22 02:39:59,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1078 states, 1057 states have (on average 1.2639545884578998) internal successors, (1336), 1077 states have internal predecessors, (1336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:39:59,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1078 states to 1078 states and 1336 transitions. [2022-11-22 02:39:59,559 INFO L78 Accepts]: Start accepts. Automaton has 1078 states and 1336 transitions. Word has length 119 [2022-11-22 02:39:59,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:39:59,559 INFO L495 AbstractCegarLoop]: Abstraction has 1078 states and 1336 transitions. [2022-11-22 02:39:59,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:39:59,559 INFO L276 IsEmpty]: Start isEmpty. Operand 1078 states and 1336 transitions. [2022-11-22 02:39:59,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-11-22 02:39:59,560 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:39:59,560 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] [2022-11-22 02:39:59,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-11-22 02:39:59,560 INFO L420 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:39:59,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:39:59,561 INFO L85 PathProgramCache]: Analyzing trace with hash 1098663273, now seen corresponding path program 1 times [2022-11-22 02:39:59,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:39:59,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935545862] [2022-11-22 02:39:59,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:39:59,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:39:59,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:39:59,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:39:59,847 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:39:59,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935545862] [2022-11-22 02:39:59,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935545862] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:39:59,848 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:39:59,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:39:59,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786599580] [2022-11-22 02:39:59,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:39:59,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:39:59,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:39:59,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:39:59,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:39:59,849 INFO L87 Difference]: Start difference. First operand 1078 states and 1336 transitions. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:40:04,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:40:04,328 INFO L93 Difference]: Finished difference Result 1962 states and 2459 transitions. [2022-11-22 02:40:04,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:40:04,329 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 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 119 [2022-11-22 02:40:04,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:40:04,330 INFO L225 Difference]: With dead ends: 1962 [2022-11-22 02:40:04,330 INFO L226 Difference]: Without dead ends: 1830 [2022-11-22 02:40:04,331 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-22 02:40:04,331 INFO L413 NwaCegarLoop]: 714 mSDtfsCounter, 1767 mSDsluCounter, 2171 mSDsCounter, 0 mSdLazyCounter, 1930 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1767 SdHoareTripleChecker+Valid, 2885 SdHoareTripleChecker+Invalid, 1934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1930 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:40:04,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1767 Valid, 2885 Invalid, 1934 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1930 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-22 02:40:04,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1830 states. [2022-11-22 02:40:05,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1830 to 1068. [2022-11-22 02:40:05,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1068 states, 1047 states have (on average 1.2645654250238778) internal successors, (1324), 1067 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:40:05,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1068 states to 1068 states and 1324 transitions. [2022-11-22 02:40:05,278 INFO L78 Accepts]: Start accepts. Automaton has 1068 states and 1324 transitions. Word has length 119 [2022-11-22 02:40:05,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:40:05,278 INFO L495 AbstractCegarLoop]: Abstraction has 1068 states and 1324 transitions. [2022-11-22 02:40:05,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:40:05,278 INFO L276 IsEmpty]: Start isEmpty. Operand 1068 states and 1324 transitions. [2022-11-22 02:40:05,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-11-22 02:40:05,279 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:40:05,279 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] [2022-11-22 02:40:05,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-11-22 02:40:05,279 INFO L420 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:40:05,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:40:05,280 INFO L85 PathProgramCache]: Analyzing trace with hash -2000163967, now seen corresponding path program 1 times [2022-11-22 02:40:05,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:40:05,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456364376] [2022-11-22 02:40:05,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:40:05,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:40:05,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:40:05,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:40:05,919 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:40:05,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456364376] [2022-11-22 02:40:05,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456364376] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:40:05,919 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:40:05,919 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-22 02:40:05,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404224306] [2022-11-22 02:40:05,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:40:05,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-22 02:40:05,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:40:05,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-22 02:40:05,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-22 02:40:05,920 INFO L87 Difference]: Start difference. First operand 1068 states and 1324 transitions. Second operand has 12 states, 12 states have (on average 10.0) internal successors, (120), 11 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:40:10,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:40:10,803 INFO L93 Difference]: Finished difference Result 2187 states and 2756 transitions. [2022-11-22 02:40:10,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-22 02:40:10,804 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 10.0) internal successors, (120), 11 states have internal predecessors, (120), 0 states have call successors, (0), 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 120 [2022-11-22 02:40:10,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:40:10,806 INFO L225 Difference]: With dead ends: 2187 [2022-11-22 02:40:10,806 INFO L226 Difference]: Without dead ends: 2053 [2022-11-22 02:40:10,806 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-11-22 02:40:10,806 INFO L413 NwaCegarLoop]: 1087 mSDtfsCounter, 3440 mSDsluCounter, 4274 mSDsCounter, 0 mSdLazyCounter, 1088 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3440 SdHoareTripleChecker+Valid, 5361 SdHoareTripleChecker+Invalid, 1089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1088 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-22 02:40:10,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3440 Valid, 5361 Invalid, 1089 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1088 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-22 02:40:10,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2053 states. [2022-11-22 02:40:11,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2053 to 1046. [2022-11-22 02:40:11,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1046 states, 1026 states have (on average 1.2621832358674463) internal successors, (1295), 1045 states have internal predecessors, (1295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:40:11,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1046 states to 1046 states and 1295 transitions. [2022-11-22 02:40:11,771 INFO L78 Accepts]: Start accepts. Automaton has 1046 states and 1295 transitions. Word has length 120 [2022-11-22 02:40:11,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:40:11,771 INFO L495 AbstractCegarLoop]: Abstraction has 1046 states and 1295 transitions. [2022-11-22 02:40:11,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.0) internal successors, (120), 11 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:40:11,771 INFO L276 IsEmpty]: Start isEmpty. Operand 1046 states and 1295 transitions. [2022-11-22 02:40:11,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-11-22 02:40:11,772 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:40:11,773 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] [2022-11-22 02:40:11,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-11-22 02:40:11,773 INFO L420 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:40:11,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:40:11,773 INFO L85 PathProgramCache]: Analyzing trace with hash 1331033441, now seen corresponding path program 1 times [2022-11-22 02:40:11,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:40:11,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638484006] [2022-11-22 02:40:11,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:40:11,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:40:11,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:40:12,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:40:12,543 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:40:12,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638484006] [2022-11-22 02:40:12,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638484006] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:40:12,543 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:40:12,543 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-22 02:40:12,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395078996] [2022-11-22 02:40:12,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:40:12,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-22 02:40:12,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:40:12,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-22 02:40:12,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-22 02:40:12,545 INFO L87 Difference]: Start difference. First operand 1046 states and 1295 transitions. Second operand has 13 states, 13 states have (on average 9.23076923076923) internal successors, (120), 12 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:40:20,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:40:20,794 INFO L93 Difference]: Finished difference Result 2822 states and 3476 transitions. [2022-11-22 02:40:20,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-22 02:40:20,795 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.23076923076923) internal successors, (120), 12 states have internal predecessors, (120), 0 states have call successors, (0), 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 120 [2022-11-22 02:40:20,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:40:20,798 INFO L225 Difference]: With dead ends: 2822 [2022-11-22 02:40:20,798 INFO L226 Difference]: Without dead ends: 2708 [2022-11-22 02:40:20,798 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2022-11-22 02:40:20,799 INFO L413 NwaCegarLoop]: 1202 mSDtfsCounter, 3411 mSDsluCounter, 7324 mSDsCounter, 0 mSdLazyCounter, 2464 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3411 SdHoareTripleChecker+Valid, 8526 SdHoareTripleChecker+Invalid, 2465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-22 02:40:20,799 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3411 Valid, 8526 Invalid, 2465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2464 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-22 02:40:20,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2708 states. [2022-11-22 02:40:21,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2708 to 1044. [2022-11-22 02:40:21,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1044 states, 1024 states have (on average 1.2607421875) internal successors, (1291), 1043 states have internal predecessors, (1291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:40:21,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1044 states to 1044 states and 1291 transitions. [2022-11-22 02:40:21,844 INFO L78 Accepts]: Start accepts. Automaton has 1044 states and 1291 transitions. Word has length 120 [2022-11-22 02:40:21,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:40:21,844 INFO L495 AbstractCegarLoop]: Abstraction has 1044 states and 1291 transitions. [2022-11-22 02:40:21,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.23076923076923) internal successors, (120), 12 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:40:21,844 INFO L276 IsEmpty]: Start isEmpty. Operand 1044 states and 1291 transitions. [2022-11-22 02:40:21,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-11-22 02:40:21,845 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:40:21,845 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] [2022-11-22 02:40:21,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2022-11-22 02:40:21,846 INFO L420 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:40:21,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:40:21,846 INFO L85 PathProgramCache]: Analyzing trace with hash 826831361, now seen corresponding path program 1 times [2022-11-22 02:40:21,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:40:21,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247816592] [2022-11-22 02:40:21,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:40:21,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:40:21,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:40:22,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:40:22,498 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:40:22,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247816592] [2022-11-22 02:40:22,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247816592] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:40:22,499 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:40:22,499 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-22 02:40:22,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490500337] [2022-11-22 02:40:22,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:40:22,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-22 02:40:22,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:40:22,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-22 02:40:22,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-22 02:40:22,501 INFO L87 Difference]: Start difference. First operand 1044 states and 1291 transitions. Second operand has 13 states, 13 states have (on average 9.23076923076923) internal successors, (120), 12 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:40:30,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:40:30,059 INFO L93 Difference]: Finished difference Result 3253 states and 4112 transitions. [2022-11-22 02:40:30,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-22 02:40:30,059 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.23076923076923) internal successors, (120), 12 states have internal predecessors, (120), 0 states have call successors, (0), 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 120 [2022-11-22 02:40:30,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:40:30,062 INFO L225 Difference]: With dead ends: 3253 [2022-11-22 02:40:30,062 INFO L226 Difference]: Without dead ends: 3018 [2022-11-22 02:40:30,063 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2022-11-22 02:40:30,063 INFO L413 NwaCegarLoop]: 1840 mSDtfsCounter, 2908 mSDsluCounter, 11606 mSDsCounter, 0 mSdLazyCounter, 1336 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2908 SdHoareTripleChecker+Valid, 13446 SdHoareTripleChecker+Invalid, 1337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:40:30,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2908 Valid, 13446 Invalid, 1337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1336 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-22 02:40:30,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3018 states. [2022-11-22 02:40:31,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3018 to 921. [2022-11-22 02:40:31,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 921 states, 905 states have (on average 1.2552486187845304) internal successors, (1136), 920 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:40:31,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1136 transitions. [2022-11-22 02:40:31,070 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1136 transitions. Word has length 120 [2022-11-22 02:40:31,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:40:31,070 INFO L495 AbstractCegarLoop]: Abstraction has 921 states and 1136 transitions. [2022-11-22 02:40:31,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.23076923076923) internal successors, (120), 12 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:40:31,070 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1136 transitions. [2022-11-22 02:40:31,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-11-22 02:40:31,072 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:40:31,072 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] [2022-11-22 02:40:31,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2022-11-22 02:40:31,072 INFO L420 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:40:31,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:40:31,073 INFO L85 PathProgramCache]: Analyzing trace with hash -1414607647, now seen corresponding path program 1 times [2022-11-22 02:40:31,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:40:31,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733306986] [2022-11-22 02:40:31,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:40:31,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:40:31,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:40:31,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:40:31,851 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:40:31,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733306986] [2022-11-22 02:40:31,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733306986] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:40:31,851 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:40:31,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-22 02:40:31,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168837807] [2022-11-22 02:40:31,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:40:31,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-22 02:40:31,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:40:31,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-22 02:40:31,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-22 02:40:31,852 INFO L87 Difference]: Start difference. First operand 921 states and 1136 transitions. Second operand has 13 states, 13 states have (on average 9.23076923076923) internal successors, (120), 12 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:40:39,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:40:39,100 INFO L93 Difference]: Finished difference Result 2698 states and 3424 transitions. [2022-11-22 02:40:39,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-22 02:40:39,101 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.23076923076923) internal successors, (120), 12 states have internal predecessors, (120), 0 states have call successors, (0), 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 120 [2022-11-22 02:40:39,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:40:39,103 INFO L225 Difference]: With dead ends: 2698 [2022-11-22 02:40:39,103 INFO L226 Difference]: Without dead ends: 2447 [2022-11-22 02:40:39,104 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2022-11-22 02:40:39,104 INFO L413 NwaCegarLoop]: 1441 mSDtfsCounter, 3132 mSDsluCounter, 8784 mSDsCounter, 0 mSdLazyCounter, 1180 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3132 SdHoareTripleChecker+Valid, 10225 SdHoareTripleChecker+Invalid, 1181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-22 02:40:39,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3132 Valid, 10225 Invalid, 1181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1180 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-22 02:40:39,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2447 states. [2022-11-22 02:40:40,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2447 to 782. [2022-11-22 02:40:40,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 782 states, 770 states have (on average 1.248051948051948) internal successors, (961), 781 states have internal predecessors, (961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:40:40,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 782 states to 782 states and 961 transitions. [2022-11-22 02:40:40,037 INFO L78 Accepts]: Start accepts. Automaton has 782 states and 961 transitions. Word has length 120 [2022-11-22 02:40:40,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:40:40,037 INFO L495 AbstractCegarLoop]: Abstraction has 782 states and 961 transitions. [2022-11-22 02:40:40,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.23076923076923) internal successors, (120), 12 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:40:40,037 INFO L276 IsEmpty]: Start isEmpty. Operand 782 states and 961 transitions. [2022-11-22 02:40:40,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-11-22 02:40:40,038 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:40:40,039 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] [2022-11-22 02:40:40,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-11-22 02:40:40,039 INFO L420 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:40:40,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:40:40,040 INFO L85 PathProgramCache]: Analyzing trace with hash -2139218719, now seen corresponding path program 1 times [2022-11-22 02:40:40,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:40:40,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831293853] [2022-11-22 02:40:40,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:40:40,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:40:40,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:40:40,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:40:40,604 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:40:40,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831293853] [2022-11-22 02:40:40,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831293853] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:40:40,604 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:40:40,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-22 02:40:40,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296694825] [2022-11-22 02:40:40,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:40:40,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-22 02:40:40,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:40:40,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-22 02:40:40,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-22 02:40:40,605 INFO L87 Difference]: Start difference. First operand 782 states and 961 transitions. Second operand has 12 states, 12 states have (on average 10.0) internal successors, (120), 11 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:40:42,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:40:42,401 INFO L93 Difference]: Finished difference Result 1158 states and 1442 transitions. [2022-11-22 02:40:42,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-22 02:40:42,401 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 10.0) internal successors, (120), 11 states have internal predecessors, (120), 0 states have call successors, (0), 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 120 [2022-11-22 02:40:42,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:40:42,402 INFO L225 Difference]: With dead ends: 1158 [2022-11-22 02:40:42,402 INFO L226 Difference]: Without dead ends: 626 [2022-11-22 02:40:42,403 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=99, Invalid=321, Unknown=0, NotChecked=0, Total=420 [2022-11-22 02:40:42,403 INFO L413 NwaCegarLoop]: 408 mSDtfsCounter, 1072 mSDsluCounter, 2074 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1072 SdHoareTripleChecker+Valid, 2482 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:40:42,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1072 Valid, 2482 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 02:40:42,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 626 states. [2022-11-22 02:40:43,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 626 to 362. [2022-11-22 02:40:43,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 356 states have (on average 1.2191011235955056) internal successors, (434), 361 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:40:43,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 434 transitions. [2022-11-22 02:40:43,017 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 434 transitions. Word has length 120 [2022-11-22 02:40:43,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:40:43,017 INFO L495 AbstractCegarLoop]: Abstraction has 362 states and 434 transitions. [2022-11-22 02:40:43,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.0) internal successors, (120), 11 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:40:43,018 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 434 transitions. [2022-11-22 02:40:43,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-11-22 02:40:43,019 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:40:43,019 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] [2022-11-22 02:40:43,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-11-22 02:40:43,019 INFO L420 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:40:43,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:40:43,020 INFO L85 PathProgramCache]: Analyzing trace with hash 1130103171, now seen corresponding path program 1 times [2022-11-22 02:40:43,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:40:43,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794285008] [2022-11-22 02:40:43,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:40:43,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:40:43,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:40:43,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:40:43,676 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:40:43,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794285008] [2022-11-22 02:40:43,676 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794285008] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:40:43,676 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:40:43,677 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-22 02:40:43,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018553219] [2022-11-22 02:40:43,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:40:43,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-22 02:40:43,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:40:43,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-22 02:40:43,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-22 02:40:43,678 INFO L87 Difference]: Start difference. First operand 362 states and 434 transitions. Second operand has 13 states, 13 states have (on average 9.307692307692308) internal successors, (121), 12 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) [2022-11-22 02:40:46,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:40:46,823 INFO L93 Difference]: Finished difference Result 942 states and 1165 transitions. [2022-11-22 02:40:46,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 02:40:46,824 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.307692307692308) internal successors, (121), 12 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 [2022-11-22 02:40:46,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:40:46,825 INFO L225 Difference]: With dead ends: 942 [2022-11-22 02:40:46,825 INFO L226 Difference]: Without dead ends: 824 [2022-11-22 02:40:46,825 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2022-11-22 02:40:46,826 INFO L413 NwaCegarLoop]: 338 mSDtfsCounter, 1376 mSDsluCounter, 2247 mSDsCounter, 0 mSdLazyCounter, 593 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1376 SdHoareTripleChecker+Valid, 2585 SdHoareTripleChecker+Invalid, 594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-22 02:40:46,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1376 Valid, 2585 Invalid, 594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 593 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-22 02:40:46,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 824 states. [2022-11-22 02:40:47,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 824 to 352. [2022-11-22 02:40:47,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 347 states have (on average 1.207492795389049) internal successors, (419), 351 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:40:47,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 419 transitions. [2022-11-22 02:40:47,427 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 419 transitions. Word has length 121 [2022-11-22 02:40:47,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:40:47,428 INFO L495 AbstractCegarLoop]: Abstraction has 352 states and 419 transitions. [2022-11-22 02:40:47,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.307692307692308) internal successors, (121), 12 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) [2022-11-22 02:40:47,428 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 419 transitions. [2022-11-22 02:40:47,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-11-22 02:40:47,428 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:40:47,429 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:40:47,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-11-22 02:40:47,429 INFO L420 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:40:47,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:40:47,429 INFO L85 PathProgramCache]: Analyzing trace with hash 740557379, now seen corresponding path program 1 times [2022-11-22 02:40:47,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:40:47,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760052441] [2022-11-22 02:40:47,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:40:47,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:40:47,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:40:48,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:40:48,146 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:40:48,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760052441] [2022-11-22 02:40:48,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760052441] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:40:48,147 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:40:48,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-22 02:40:48,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545834659] [2022-11-22 02:40:48,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:40:48,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-22 02:40:48,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:40:48,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-22 02:40:48,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-22 02:40:48,148 INFO L87 Difference]: Start difference. First operand 352 states and 419 transitions. Second operand has 13 states, 13 states have (on average 9.307692307692308) internal successors, (121), 12 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) [2022-11-22 02:40:51,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:40:51,318 INFO L93 Difference]: Finished difference Result 934 states and 1150 transitions. [2022-11-22 02:40:51,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-22 02:40:51,318 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.307692307692308) internal successors, (121), 12 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 [2022-11-22 02:40:51,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:40:51,319 INFO L225 Difference]: With dead ends: 934 [2022-11-22 02:40:51,319 INFO L226 Difference]: Without dead ends: 816 [2022-11-22 02:40:51,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=158, Invalid=492, Unknown=0, NotChecked=0, Total=650 [2022-11-22 02:40:51,320 INFO L413 NwaCegarLoop]: 289 mSDtfsCounter, 1451 mSDsluCounter, 1746 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1451 SdHoareTripleChecker+Valid, 2035 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-22 02:40:51,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1451 Valid, 2035 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 500 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-22 02:40:51,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 816 states. [2022-11-22 02:40:51,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 816 to 335. [2022-11-22 02:40:51,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 331 states have (on average 1.1963746223564955) internal successors, (396), 334 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:40:51,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 396 transitions. [2022-11-22 02:40:51,921 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 396 transitions. Word has length 121 [2022-11-22 02:40:51,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:40:51,921 INFO L495 AbstractCegarLoop]: Abstraction has 335 states and 396 transitions. [2022-11-22 02:40:51,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.307692307692308) internal successors, (121), 12 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) [2022-11-22 02:40:51,921 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 396 transitions. [2022-11-22 02:40:51,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-11-22 02:40:51,921 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:40:51,922 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:40:51,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2022-11-22 02:40:51,922 INFO L420 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:40:51,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:40:51,922 INFO L85 PathProgramCache]: Analyzing trace with hash 1431269891, now seen corresponding path program 1 times [2022-11-22 02:40:51,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:40:51,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12422425] [2022-11-22 02:40:51,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:40:51,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:40:51,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:40:52,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:40:52,233 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:40:52,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12422425] [2022-11-22 02:40:52,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12422425] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:40:52,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:40:52,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:40:52,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80148712] [2022-11-22 02:40:52,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:40:52,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:40:52,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:40:52,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:40:52,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:40:52,234 INFO L87 Difference]: Start difference. First operand 335 states and 396 transitions. Second operand has 8 states, 8 states have (on average 15.375) internal successors, (123), 7 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:40:54,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:40:54,111 INFO L93 Difference]: Finished difference Result 511 states and 613 transitions. [2022-11-22 02:40:54,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-22 02:40:54,112 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 15.375) internal successors, (123), 7 states have internal predecessors, (123), 0 states have call successors, (0), 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 123 [2022-11-22 02:40:54,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:40:54,113 INFO L225 Difference]: With dead ends: 511 [2022-11-22 02:40:54,113 INFO L226 Difference]: Without dead ends: 503 [2022-11-22 02:40:54,113 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2022-11-22 02:40:54,113 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 949 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 949 SdHoareTripleChecker+Valid, 710 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 02:40:54,113 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [949 Valid, 710 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 02:40:54,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2022-11-22 02:40:54,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 335. [2022-11-22 02:40:54,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 331 states have (on average 1.1933534743202416) internal successors, (395), 334 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:40:54,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 395 transitions. [2022-11-22 02:40:54,713 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 395 transitions. Word has length 123 [2022-11-22 02:40:54,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:40:54,713 INFO L495 AbstractCegarLoop]: Abstraction has 335 states and 395 transitions. [2022-11-22 02:40:54,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.375) internal successors, (123), 7 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:40:54,713 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 395 transitions. [2022-11-22 02:40:54,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-11-22 02:40:54,714 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:40:54,714 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] [2022-11-22 02:40:54,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2022-11-22 02:40:54,714 INFO L420 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:40:54,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:40:54,714 INFO L85 PathProgramCache]: Analyzing trace with hash 875840387, now seen corresponding path program 1 times [2022-11-22 02:40:54,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:40:54,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699545648] [2022-11-22 02:40:54,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:40:54,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:40:54,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:40:55,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:40:55,253 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:40:55,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699545648] [2022-11-22 02:40:55,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699545648] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:40:55,253 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:40:55,253 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-22 02:40:55,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549856628] [2022-11-22 02:40:55,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:40:55,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-22 02:40:55,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:40:55,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-22 02:40:55,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-22 02:40:55,254 INFO L87 Difference]: Start difference. First operand 335 states and 395 transitions. Second operand has 11 states, 11 states have (on average 11.181818181818182) internal successors, (123), 10 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:41:02,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:41:02,046 INFO L93 Difference]: Finished difference Result 1498 states and 1909 transitions. [2022-11-22 02:41:02,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-22 02:41:02,046 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 11.181818181818182) internal successors, (123), 10 states have internal predecessors, (123), 0 states have call successors, (0), 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 123 [2022-11-22 02:41:02,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:41:02,048 INFO L225 Difference]: With dead ends: 1498 [2022-11-22 02:41:02,048 INFO L226 Difference]: Without dead ends: 1352 [2022-11-22 02:41:02,048 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2022-11-22 02:41:02,048 INFO L413 NwaCegarLoop]: 309 mSDtfsCounter, 2372 mSDsluCounter, 1205 mSDsCounter, 0 mSdLazyCounter, 1287 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2372 SdHoareTripleChecker+Valid, 1514 SdHoareTripleChecker+Invalid, 1332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:41:02,048 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2372 Valid, 1514 Invalid, 1332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1287 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-22 02:41:02,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1352 states. [2022-11-22 02:41:02,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1352 to 345. [2022-11-22 02:41:02,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 341 states have (on average 1.187683284457478) internal successors, (405), 344 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:41:02,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 405 transitions. [2022-11-22 02:41:02,664 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 405 transitions. Word has length 123 [2022-11-22 02:41:02,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:41:02,665 INFO L495 AbstractCegarLoop]: Abstraction has 345 states and 405 transitions. [2022-11-22 02:41:02,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.181818181818182) internal successors, (123), 10 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:41:02,665 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 405 transitions. [2022-11-22 02:41:02,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-11-22 02:41:02,665 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:41:02,665 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:41:02,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2022-11-22 02:41:02,666 INFO L420 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:41:02,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:41:02,666 INFO L85 PathProgramCache]: Analyzing trace with hash 739897027, now seen corresponding path program 1 times [2022-11-22 02:41:02,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:41:02,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078021700] [2022-11-22 02:41:02,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:41:02,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:41:02,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:41:03,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:41:03,208 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:41:03,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078021700] [2022-11-22 02:41:03,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078021700] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:41:03,208 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:41:03,209 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-22 02:41:03,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792221644] [2022-11-22 02:41:03,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:41:03,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-22 02:41:03,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:41:03,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-22 02:41:03,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-22 02:41:03,210 INFO L87 Difference]: Start difference. First operand 345 states and 405 transitions. Second operand has 11 states, 11 states have (on average 11.181818181818182) internal successors, (123), 10 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:41:06,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:41:06,818 INFO L93 Difference]: Finished difference Result 791 states and 976 transitions. [2022-11-22 02:41:06,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-22 02:41:06,819 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 11.181818181818182) internal successors, (123), 10 states have internal predecessors, (123), 0 states have call successors, (0), 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 123 [2022-11-22 02:41:06,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:41:06,820 INFO L225 Difference]: With dead ends: 791 [2022-11-22 02:41:06,820 INFO L226 Difference]: Without dead ends: 783 [2022-11-22 02:41:06,820 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=193, Invalid=509, Unknown=0, NotChecked=0, Total=702 [2022-11-22 02:41:06,821 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 2119 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 601 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2119 SdHoareTripleChecker+Valid, 807 SdHoareTripleChecker+Invalid, 646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-22 02:41:06,821 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2119 Valid, 807 Invalid, 646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 601 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-22 02:41:06,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 783 states. [2022-11-22 02:41:07,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 783 to 350. [2022-11-22 02:41:07,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 346 states have (on average 1.1849710982658959) internal successors, (410), 349 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:41:07,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 410 transitions. [2022-11-22 02:41:07,527 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 410 transitions. Word has length 123 [2022-11-22 02:41:07,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:41:07,527 INFO L495 AbstractCegarLoop]: Abstraction has 350 states and 410 transitions. [2022-11-22 02:41:07,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.181818181818182) internal successors, (123), 10 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:41:07,527 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 410 transitions. [2022-11-22 02:41:07,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-11-22 02:41:07,528 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:41:07,528 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] [2022-11-22 02:41:07,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2022-11-22 02:41:07,529 INFO L420 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:41:07,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:41:07,529 INFO L85 PathProgramCache]: Analyzing trace with hash -1420664429, now seen corresponding path program 1 times [2022-11-22 02:41:07,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:41:07,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629987212] [2022-11-22 02:41:07,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:41:07,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:41:07,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:41:07,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:41:07,866 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:41:07,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629987212] [2022-11-22 02:41:07,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629987212] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:41:07,866 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:41:07,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:41:07,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957705261] [2022-11-22 02:41:07,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:41:07,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:41:07,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:41:07,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:41:07,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:41:07,868 INFO L87 Difference]: Start difference. First operand 350 states and 410 transitions. Second operand has 8 states, 8 states have (on average 15.5) internal successors, (124), 7 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) [2022-11-22 02:41:09,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:41:09,929 INFO L93 Difference]: Finished difference Result 665 states and 811 transitions. [2022-11-22 02:41:09,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-22 02:41:09,929 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 15.5) internal successors, (124), 7 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 [2022-11-22 02:41:09,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:41:09,930 INFO L225 Difference]: With dead ends: 665 [2022-11-22 02:41:09,930 INFO L226 Difference]: Without dead ends: 519 [2022-11-22 02:41:09,931 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 [2022-11-22 02:41:09,931 INFO L413 NwaCegarLoop]: 221 mSDtfsCounter, 900 mSDsluCounter, 517 mSDsCounter, 0 mSdLazyCounter, 552 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 900 SdHoareTripleChecker+Valid, 738 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 552 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-22 02:41:09,931 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [900 Valid, 738 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 552 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-22 02:41:09,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2022-11-22 02:41:10,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 340. [2022-11-22 02:41:10,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 336 states have (on average 1.1845238095238095) internal successors, (398), 339 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:41:10,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 398 transitions. [2022-11-22 02:41:10,562 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 398 transitions. Word has length 124 [2022-11-22 02:41:10,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:41:10,562 INFO L495 AbstractCegarLoop]: Abstraction has 340 states and 398 transitions. [2022-11-22 02:41:10,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.5) internal successors, (124), 7 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) [2022-11-22 02:41:10,563 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 398 transitions. [2022-11-22 02:41:10,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-11-22 02:41:10,563 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:41:10,563 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:41:10,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2022-11-22 02:41:10,563 INFO L420 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:41:10,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:41:10,564 INFO L85 PathProgramCache]: Analyzing trace with hash 1399804217, now seen corresponding path program 1 times [2022-11-22 02:41:10,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:41:10,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692883587] [2022-11-22 02:41:10,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:41:10,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:41:10,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:41:10,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:41:10,865 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:41:10,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692883587] [2022-11-22 02:41:10,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692883587] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:41:10,865 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:41:10,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:41:10,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555450872] [2022-11-22 02:41:10,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:41:10,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:41:10,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:41:10,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:41:10,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:41:10,866 INFO L87 Difference]: Start difference. First operand 340 states and 398 transitions. Second operand has 8 states, 8 states have (on average 15.5) internal successors, (124), 7 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) [2022-11-22 02:41:12,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:41:12,782 INFO L93 Difference]: Finished difference Result 511 states and 609 transitions. [2022-11-22 02:41:12,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-22 02:41:12,783 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 15.5) internal successors, (124), 7 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 [2022-11-22 02:41:12,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:41:12,783 INFO L225 Difference]: With dead ends: 511 [2022-11-22 02:41:12,783 INFO L226 Difference]: Without dead ends: 503 [2022-11-22 02:41:12,784 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 [2022-11-22 02:41:12,784 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 559 mSDsluCounter, 610 mSDsCounter, 0 mSdLazyCounter, 633 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 559 SdHoareTripleChecker+Valid, 825 SdHoareTripleChecker+Invalid, 636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 633 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-22 02:41:12,784 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [559 Valid, 825 Invalid, 636 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 633 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-22 02:41:12,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2022-11-22 02:41:13,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 335. [2022-11-22 02:41:13,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 331 states have (on average 1.1842900302114803) internal successors, (392), 334 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:41:13,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 392 transitions. [2022-11-22 02:41:13,402 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 392 transitions. Word has length 124 [2022-11-22 02:41:13,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:41:13,403 INFO L495 AbstractCegarLoop]: Abstraction has 335 states and 392 transitions. [2022-11-22 02:41:13,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.5) internal successors, (124), 7 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) [2022-11-22 02:41:13,403 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 392 transitions. [2022-11-22 02:41:13,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-11-22 02:41:13,403 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:41:13,403 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] [2022-11-22 02:41:13,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2022-11-22 02:41:13,404 INFO L420 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:41:13,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:41:13,404 INFO L85 PathProgramCache]: Analyzing trace with hash -756360920, now seen corresponding path program 1 times [2022-11-22 02:41:13,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:41:13,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161998366] [2022-11-22 02:41:13,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:41:13,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:41:13,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:41:16,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:41:16,681 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:41:16,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161998366] [2022-11-22 02:41:16,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161998366] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:41:16,681 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:41:16,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [37] imperfect sequences [] total 37 [2022-11-22 02:41:16,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794267094] [2022-11-22 02:41:16,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:41:16,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-11-22 02:41:16,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:41:16,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-11-22 02:41:16,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=1293, Unknown=0, NotChecked=0, Total=1406 [2022-11-22 02:41:16,682 INFO L87 Difference]: Start difference. First operand 335 states and 392 transitions. Second operand has 38 states, 38 states have (on average 3.289473684210526) internal successors, (125), 37 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:41:26,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:41:26,639 INFO L93 Difference]: Finished difference Result 1011 states and 1254 transitions. [2022-11-22 02:41:26,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-11-22 02:41:26,640 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 3.289473684210526) internal successors, (125), 37 states have internal predecessors, (125), 0 states have call successors, (0), 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 125 [2022-11-22 02:41:26,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:41:26,641 INFO L225 Difference]: With dead ends: 1011 [2022-11-22 02:41:26,641 INFO L226 Difference]: Without dead ends: 1005 [2022-11-22 02:41:26,642 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 826 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=685, Invalid=4285, Unknown=0, NotChecked=0, Total=4970 [2022-11-22 02:41:26,642 INFO L413 NwaCegarLoop]: 288 mSDtfsCounter, 1663 mSDsluCounter, 7204 mSDsCounter, 0 mSdLazyCounter, 3800 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1663 SdHoareTripleChecker+Valid, 7492 SdHoareTripleChecker+Invalid, 3822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 3800 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:41:26,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1663 Valid, 7492 Invalid, 3822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 3800 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-11-22 02:41:26,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1005 states. [2022-11-22 02:41:27,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1005 to 366. [2022-11-22 02:41:27,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 362 states have (on average 1.1850828729281768) internal successors, (429), 365 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:41:27,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 429 transitions. [2022-11-22 02:41:27,304 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 429 transitions. Word has length 125 [2022-11-22 02:41:27,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:41:27,305 INFO L495 AbstractCegarLoop]: Abstraction has 366 states and 429 transitions. [2022-11-22 02:41:27,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 3.289473684210526) internal successors, (125), 37 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:41:27,305 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 429 transitions. [2022-11-22 02:41:27,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-11-22 02:41:27,305 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:41:27,305 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] [2022-11-22 02:41:27,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2022-11-22 02:41:27,306 INFO L420 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:41:27,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:41:27,306 INFO L85 PathProgramCache]: Analyzing trace with hash -18243096, now seen corresponding path program 1 times [2022-11-22 02:41:27,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:41:27,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848488931] [2022-11-22 02:41:27,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:41:27,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:41:27,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:41:31,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:41:31,455 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:41:31,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848488931] [2022-11-22 02:41:31,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848488931] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:41:31,455 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:41:31,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [37] imperfect sequences [] total 37 [2022-11-22 02:41:31,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892281075] [2022-11-22 02:41:31,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:41:31,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-11-22 02:41:31,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:41:31,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-11-22 02:41:31,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=1274, Unknown=0, NotChecked=0, Total=1406 [2022-11-22 02:41:31,457 INFO L87 Difference]: Start difference. First operand 366 states and 429 transitions. Second operand has 38 states, 38 states have (on average 3.289473684210526) internal successors, (125), 37 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:41:38,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:41:38,594 INFO L93 Difference]: Finished difference Result 409 states and 473 transitions. [2022-11-22 02:41:38,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-11-22 02:41:38,594 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 3.289473684210526) internal successors, (125), 37 states have internal predecessors, (125), 0 states have call successors, (0), 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 125 [2022-11-22 02:41:38,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:41:38,595 INFO L225 Difference]: With dead ends: 409 [2022-11-22 02:41:38,595 INFO L226 Difference]: Without dead ends: 400 [2022-11-22 02:41:38,595 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 934 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=734, Invalid=4236, Unknown=0, NotChecked=0, Total=4970 [2022-11-22 02:41:38,596 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 1082 mSDsluCounter, 3859 mSDsCounter, 0 mSdLazyCounter, 2766 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1082 SdHoareTripleChecker+Valid, 4028 SdHoareTripleChecker+Invalid, 2781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 2766 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-22 02:41:38,596 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1082 Valid, 4028 Invalid, 2781 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 2766 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-22 02:41:38,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2022-11-22 02:41:39,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 370. [2022-11-22 02:41:39,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 366 states have (on average 1.185792349726776) internal successors, (434), 369 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:41:39,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 434 transitions. [2022-11-22 02:41:39,268 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 434 transitions. Word has length 125 [2022-11-22 02:41:39,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:41:39,269 INFO L495 AbstractCegarLoop]: Abstraction has 370 states and 434 transitions. [2022-11-22 02:41:39,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 3.289473684210526) internal successors, (125), 37 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:41:39,269 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 434 transitions. [2022-11-22 02:41:39,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-11-22 02:41:39,269 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:41:39,269 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] [2022-11-22 02:41:39,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2022-11-22 02:41:39,270 INFO L420 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:41:39,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:41:39,270 INFO L85 PathProgramCache]: Analyzing trace with hash 1292343976, now seen corresponding path program 1 times [2022-11-22 02:41:39,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:41:39,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296800174] [2022-11-22 02:41:39,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:41:39,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:41:39,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:41:42,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:41:42,786 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:41:42,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296800174] [2022-11-22 02:41:42,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296800174] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:41:42,786 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:41:42,786 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2022-11-22 02:41:42,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16747711] [2022-11-22 02:41:42,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:41:42,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-11-22 02:41:42,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:41:42,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-11-22 02:41:42,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=1183, Unknown=0, NotChecked=0, Total=1260 [2022-11-22 02:41:42,787 INFO L87 Difference]: Start difference. First operand 370 states and 434 transitions. Second operand has 36 states, 36 states have (on average 3.4722222222222223) internal successors, (125), 36 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:41:49,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:41:49,859 INFO L93 Difference]: Finished difference Result 418 states and 483 transitions. [2022-11-22 02:41:49,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-11-22 02:41:49,860 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 3.4722222222222223) internal successors, (125), 36 states have internal predecessors, (125), 0 states have call successors, (0), 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 125 [2022-11-22 02:41:49,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:41:49,860 INFO L225 Difference]: With dead ends: 418 [2022-11-22 02:41:49,860 INFO L226 Difference]: Without dead ends: 409 [2022-11-22 02:41:49,861 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 618 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=572, Invalid=3984, Unknown=0, NotChecked=0, Total=4556 [2022-11-22 02:41:49,861 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 990 mSDsluCounter, 4152 mSDsCounter, 0 mSdLazyCounter, 2962 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 990 SdHoareTripleChecker+Valid, 4324 SdHoareTripleChecker+Invalid, 2963 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2962 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-22 02:41:49,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [990 Valid, 4324 Invalid, 2963 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2962 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-22 02:41:49,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2022-11-22 02:41:50,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 380. [2022-11-22 02:41:50,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 376 states have (on average 1.1861702127659575) internal successors, (446), 379 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:41:50,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 446 transitions. [2022-11-22 02:41:50,537 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 446 transitions. Word has length 125 [2022-11-22 02:41:50,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:41:50,537 INFO L495 AbstractCegarLoop]: Abstraction has 380 states and 446 transitions. [2022-11-22 02:41:50,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 3.4722222222222223) internal successors, (125), 36 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:41:50,537 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 446 transitions. [2022-11-22 02:41:50,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-11-22 02:41:50,537 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:41:50,538 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] [2022-11-22 02:41:50,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2022-11-22 02:41:50,538 INFO L420 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:41:50,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:41:50,538 INFO L85 PathProgramCache]: Analyzing trace with hash -2142344811, now seen corresponding path program 1 times [2022-11-22 02:41:50,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:41:50,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295621339] [2022-11-22 02:41:50,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:41:50,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:41:50,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:41:51,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:41:51,395 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:41:51,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295621339] [2022-11-22 02:41:51,396 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295621339] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:41:51,396 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:41:51,396 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-22 02:41:51,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073842701] [2022-11-22 02:41:51,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:41:51,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-22 02:41:51,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:41:51,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-22 02:41:51,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-22 02:41:51,397 INFO L87 Difference]: Start difference. First operand 380 states and 446 transitions. Second operand has 13 states, 13 states have (on average 9.692307692307692) internal successors, (126), 12 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:41:57,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:41:57,309 INFO L93 Difference]: Finished difference Result 1297 states and 1618 transitions. [2022-11-22 02:41:57,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-22 02:41:57,310 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.692307692307692) internal successors, (126), 12 states have internal predecessors, (126), 0 states have call successors, (0), 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 126 [2022-11-22 02:41:57,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:41:57,311 INFO L225 Difference]: With dead ends: 1297 [2022-11-22 02:41:57,312 INFO L226 Difference]: Without dead ends: 1291 [2022-11-22 02:41:57,312 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2022-11-22 02:41:57,312 INFO L413 NwaCegarLoop]: 500 mSDtfsCounter, 1304 mSDsluCounter, 3531 mSDsCounter, 0 mSdLazyCounter, 880 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1304 SdHoareTripleChecker+Valid, 4031 SdHoareTripleChecker+Invalid, 881 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 880 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-22 02:41:57,312 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1304 Valid, 4031 Invalid, 881 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 880 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-22 02:41:57,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1291 states. [2022-11-22 02:41:58,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1291 to 367. [2022-11-22 02:41:58,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367 states, 364 states have (on average 1.1813186813186813) internal successors, (430), 366 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:41:58,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 430 transitions. [2022-11-22 02:41:58,005 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 430 transitions. Word has length 126 [2022-11-22 02:41:58,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:41:58,005 INFO L495 AbstractCegarLoop]: Abstraction has 367 states and 430 transitions. [2022-11-22 02:41:58,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.692307692307692) internal successors, (126), 12 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:41:58,006 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 430 transitions. [2022-11-22 02:41:58,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-11-22 02:41:58,006 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:41:58,006 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] [2022-11-22 02:41:58,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2022-11-22 02:41:58,007 INFO L420 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:41:58,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:41:58,007 INFO L85 PathProgramCache]: Analyzing trace with hash 68856123, now seen corresponding path program 1 times [2022-11-22 02:41:58,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:41:58,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967117480] [2022-11-22 02:41:58,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:41:58,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:41:58,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:41:59,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:41:59,214 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:41:59,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967117480] [2022-11-22 02:41:59,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967117480] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:41:59,214 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:41:59,214 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-11-22 02:41:59,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226466237] [2022-11-22 02:41:59,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:41:59,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-22 02:41:59,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:41:59,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-22 02:41:59,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2022-11-22 02:41:59,215 INFO L87 Difference]: Start difference. First operand 367 states and 430 transitions. Second operand has 17 states, 17 states have (on average 7.411764705882353) internal successors, (126), 16 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:42:04,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:42:04,915 INFO L93 Difference]: Finished difference Result 984 states and 1200 transitions. [2022-11-22 02:42:04,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-22 02:42:04,916 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 7.411764705882353) internal successors, (126), 16 states have internal predecessors, (126), 0 states have call successors, (0), 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 126 [2022-11-22 02:42:04,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:42:04,917 INFO L225 Difference]: With dead ends: 984 [2022-11-22 02:42:04,917 INFO L226 Difference]: Without dead ends: 971 [2022-11-22 02:42:04,917 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=279, Invalid=1053, Unknown=0, NotChecked=0, Total=1332 [2022-11-22 02:42:04,917 INFO L413 NwaCegarLoop]: 407 mSDtfsCounter, 1427 mSDsluCounter, 3347 mSDsCounter, 0 mSdLazyCounter, 1078 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1427 SdHoareTripleChecker+Valid, 3754 SdHoareTripleChecker+Invalid, 1080 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1078 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-22 02:42:04,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1427 Valid, 3754 Invalid, 1080 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1078 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-22 02:42:04,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 971 states. [2022-11-22 02:42:05,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 971 to 363. [2022-11-22 02:42:05,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 360 states have (on average 1.1777777777777778) internal successors, (424), 362 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:42:05,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 424 transitions. [2022-11-22 02:42:05,640 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 424 transitions. Word has length 126 [2022-11-22 02:42:05,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:42:05,641 INFO L495 AbstractCegarLoop]: Abstraction has 363 states and 424 transitions. [2022-11-22 02:42:05,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 7.411764705882353) internal successors, (126), 16 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:42:05,641 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 424 transitions. [2022-11-22 02:42:05,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-11-22 02:42:05,641 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:42:05,641 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] [2022-11-22 02:42:05,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2022-11-22 02:42:05,642 INFO L420 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:42:05,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:42:05,642 INFO L85 PathProgramCache]: Analyzing trace with hash 653818872, now seen corresponding path program 1 times [2022-11-22 02:42:05,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:42:05,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364370020] [2022-11-22 02:42:05,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:42:05,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:42:05,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:42:06,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:42:06,243 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:42:06,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364370020] [2022-11-22 02:42:06,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364370020] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:42:06,244 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:42:06,244 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-22 02:42:06,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629237029] [2022-11-22 02:42:06,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:42:06,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-22 02:42:06,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:42:06,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-22 02:42:06,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-11-22 02:42:06,245 INFO L87 Difference]: Start difference. First operand 363 states and 424 transitions. Second operand has 12 states, 12 states have (on average 10.5) internal successors, (126), 11 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:42:09,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:42:09,452 INFO L93 Difference]: Finished difference Result 803 states and 988 transitions. [2022-11-22 02:42:09,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-22 02:42:09,453 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 10.5) internal successors, (126), 11 states have internal predecessors, (126), 0 states have call successors, (0), 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 126 [2022-11-22 02:42:09,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:42:09,454 INFO L225 Difference]: With dead ends: 803 [2022-11-22 02:42:09,454 INFO L226 Difference]: Without dead ends: 791 [2022-11-22 02:42:09,454 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=117, Invalid=345, Unknown=0, NotChecked=0, Total=462 [2022-11-22 02:42:09,454 INFO L413 NwaCegarLoop]: 450 mSDtfsCounter, 1069 mSDsluCounter, 1617 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1069 SdHoareTripleChecker+Valid, 2067 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 02:42:09,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1069 Valid, 2067 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 02:42:09,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 791 states. [2022-11-22 02:42:10,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 791 to 344. [2022-11-22 02:42:10,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 342 states have (on average 1.1783625730994152) internal successors, (403), 343 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) [2022-11-22 02:42:10,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 403 transitions. [2022-11-22 02:42:10,162 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 403 transitions. Word has length 126 [2022-11-22 02:42:10,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:42:10,163 INFO L495 AbstractCegarLoop]: Abstraction has 344 states and 403 transitions. [2022-11-22 02:42:10,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.5) internal successors, (126), 11 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:42:10,163 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 403 transitions. [2022-11-22 02:42:10,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-11-22 02:42:10,163 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:42:10,163 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] [2022-11-22 02:42:10,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2022-11-22 02:42:10,164 INFO L420 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:42:10,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:42:10,164 INFO L85 PathProgramCache]: Analyzing trace with hash 2042349019, now seen corresponding path program 1 times [2022-11-22 02:42:10,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:42:10,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877959285] [2022-11-22 02:42:10,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:42:10,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:42:10,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:42:11,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:42:11,188 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:42:11,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877959285] [2022-11-22 02:42:11,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877959285] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:42:11,188 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:42:11,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-11-22 02:42:11,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513572744] [2022-11-22 02:42:11,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:42:11,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-22 02:42:11,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:42:11,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-22 02:42:11,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-11-22 02:42:11,190 INFO L87 Difference]: Start difference. First operand 344 states and 403 transitions. Second operand has 17 states, 17 states have (on average 7.411764705882353) internal successors, (126), 16 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:42:14,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:42:14,843 INFO L93 Difference]: Finished difference Result 714 states and 862 transitions. [2022-11-22 02:42:14,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-22 02:42:14,844 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 7.411764705882353) internal successors, (126), 16 states have internal predecessors, (126), 0 states have call successors, (0), 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 126 [2022-11-22 02:42:14,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:42:14,845 INFO L225 Difference]: With dead ends: 714 [2022-11-22 02:42:14,845 INFO L226 Difference]: Without dead ends: 692 [2022-11-22 02:42:14,845 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=263, Invalid=927, Unknown=0, NotChecked=0, Total=1190 [2022-11-22 02:42:14,845 INFO L413 NwaCegarLoop]: 385 mSDtfsCounter, 1419 mSDsluCounter, 2817 mSDsCounter, 0 mSdLazyCounter, 858 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1419 SdHoareTripleChecker+Valid, 3202 SdHoareTripleChecker+Invalid, 862 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 858 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-22 02:42:14,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1419 Valid, 3202 Invalid, 862 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 858 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-22 02:42:14,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 692 states. [2022-11-22 02:42:15,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 692 to 316. [2022-11-22 02:42:15,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 314 states have (on average 1.1751592356687899) internal successors, (369), 315 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:42:15,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 369 transitions. [2022-11-22 02:42:15,514 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 369 transitions. Word has length 126 [2022-11-22 02:42:15,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:42:15,514 INFO L495 AbstractCegarLoop]: Abstraction has 316 states and 369 transitions. [2022-11-22 02:42:15,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 7.411764705882353) internal successors, (126), 16 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:42:15,514 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 369 transitions. [2022-11-22 02:42:15,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-11-22 02:42:15,515 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:42:15,515 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] [2022-11-22 02:42:15,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2022-11-22 02:42:15,515 INFO L420 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:42:15,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:42:15,515 INFO L85 PathProgramCache]: Analyzing trace with hash -192006242, now seen corresponding path program 1 times [2022-11-22 02:42:15,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:42:15,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463299568] [2022-11-22 02:42:15,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:42:15,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:42:15,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:42:16,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:42:16,445 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:42:16,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463299568] [2022-11-22 02:42:16,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463299568] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:42:16,445 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:42:16,445 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-22 02:42:16,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116167003] [2022-11-22 02:42:16,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:42:16,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-22 02:42:16,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:42:16,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-22 02:42:16,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2022-11-22 02:42:16,446 INFO L87 Difference]: Start difference. First operand 316 states and 369 transitions. Second operand has 16 states, 16 states have (on average 7.875) internal successors, (126), 15 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:42:20,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:42:20,112 INFO L93 Difference]: Finished difference Result 653 states and 794 transitions. [2022-11-22 02:42:20,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-22 02:42:20,112 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.875) internal successors, (126), 15 states have internal predecessors, (126), 0 states have call successors, (0), 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 126 [2022-11-22 02:42:20,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:42:20,113 INFO L225 Difference]: With dead ends: 653 [2022-11-22 02:42:20,113 INFO L226 Difference]: Without dead ends: 630 [2022-11-22 02:42:20,114 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=249, Invalid=873, Unknown=0, NotChecked=0, Total=1122 [2022-11-22 02:42:20,114 INFO L413 NwaCegarLoop]: 346 mSDtfsCounter, 1193 mSDsluCounter, 2402 mSDsCounter, 0 mSdLazyCounter, 788 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1193 SdHoareTripleChecker+Valid, 2748 SdHoareTripleChecker+Invalid, 791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 788 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-22 02:42:20,114 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1193 Valid, 2748 Invalid, 791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 788 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-22 02:42:20,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2022-11-22 02:42:20,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 296. [2022-11-22 02:42:20,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 295 states have (on average 1.176271186440678) internal successors, (347), 295 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:42:20,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 347 transitions. [2022-11-22 02:42:20,775 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 347 transitions. Word has length 126 [2022-11-22 02:42:20,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:42:20,776 INFO L495 AbstractCegarLoop]: Abstraction has 296 states and 347 transitions. [2022-11-22 02:42:20,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.875) internal successors, (126), 15 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:42:20,776 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 347 transitions. [2022-11-22 02:42:20,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-11-22 02:42:20,776 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:42:20,777 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:42:20,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2022-11-22 02:42:20,777 INFO L420 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:42:20,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:42:20,777 INFO L85 PathProgramCache]: Analyzing trace with hash 761741703, now seen corresponding path program 1 times [2022-11-22 02:42:20,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:42:20,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910538953] [2022-11-22 02:42:20,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:42:20,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:42:20,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:42:20,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:42:20,948 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:42:20,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910538953] [2022-11-22 02:42:20,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910538953] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:42:20,948 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:42:20,948 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:42:20,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520624544] [2022-11-22 02:42:20,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:42:20,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:42:20,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:42:20,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:42:20,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:42:20,949 INFO L87 Difference]: Start difference. First operand 296 states and 347 transitions. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 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) [2022-11-22 02:42:22,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:42:22,011 INFO L93 Difference]: Finished difference Result 417 states and 506 transitions. [2022-11-22 02:42:22,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:42:22,011 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 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 149 [2022-11-22 02:42:22,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:42:22,012 INFO L225 Difference]: With dead ends: 417 [2022-11-22 02:42:22,012 INFO L226 Difference]: Without dead ends: 360 [2022-11-22 02:42:22,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:42:22,013 INFO L413 NwaCegarLoop]: 265 mSDtfsCounter, 86 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:42:22,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 410 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:42:22,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2022-11-22 02:42:22,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 350. [2022-11-22 02:42:22,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 349 states have (on average 1.1948424068767909) internal successors, (417), 349 states have internal predecessors, (417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:42:22,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 417 transitions. [2022-11-22 02:42:22,917 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 417 transitions. Word has length 149 [2022-11-22 02:42:22,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:42:22,917 INFO L495 AbstractCegarLoop]: Abstraction has 350 states and 417 transitions. [2022-11-22 02:42:22,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 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) [2022-11-22 02:42:22,918 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 417 transitions. [2022-11-22 02:42:22,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-11-22 02:42:22,918 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:42:22,918 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:42:22,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2022-11-22 02:42:22,919 INFO L420 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:42:22,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:42:22,919 INFO L85 PathProgramCache]: Analyzing trace with hash -1435394043, now seen corresponding path program 1 times [2022-11-22 02:42:22,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:42:22,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664046835] [2022-11-22 02:42:22,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:42:22,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:42:22,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:42:23,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:42:23,144 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:42:23,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664046835] [2022-11-22 02:42:23,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664046835] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:42:23,144 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:42:23,145 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:42:23,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768491752] [2022-11-22 02:42:23,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:42:23,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:42:23,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:42:23,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:42:23,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:42:23,146 INFO L87 Difference]: Start difference. First operand 350 states and 417 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:42:25,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:42:25,090 INFO L93 Difference]: Finished difference Result 676 states and 847 transitions. [2022-11-22 02:42:25,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:42:25,091 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 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 152 [2022-11-22 02:42:25,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:42:25,092 INFO L225 Difference]: With dead ends: 676 [2022-11-22 02:42:25,092 INFO L226 Difference]: Without dead ends: 513 [2022-11-22 02:42:25,092 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:42:25,092 INFO L413 NwaCegarLoop]: 258 mSDtfsCounter, 79 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:42:25,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 411 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:42:25,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2022-11-22 02:42:26,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 499. [2022-11-22 02:42:26,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 499 states, 498 states have (on average 1.2309236947791165) internal successors, (613), 498 states have internal predecessors, (613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:42:26,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 613 transitions. [2022-11-22 02:42:26,728 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 613 transitions. Word has length 152 [2022-11-22 02:42:26,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:42:26,728 INFO L495 AbstractCegarLoop]: Abstraction has 499 states and 613 transitions. [2022-11-22 02:42:26,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:42:26,728 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 613 transitions. [2022-11-22 02:42:26,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-11-22 02:42:26,729 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:42:26,729 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:42:26,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2022-11-22 02:42:26,729 INFO L420 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:42:26,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:42:26,730 INFO L85 PathProgramCache]: Analyzing trace with hash 102295120, now seen corresponding path program 1 times [2022-11-22 02:42:26,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:42:26,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504116996] [2022-11-22 02:42:26,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:42:26,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:42:26,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:42:26,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:42:26,931 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:42:26,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504116996] [2022-11-22 02:42:26,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504116996] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:42:26,932 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:42:26,932 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:42:26,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615497595] [2022-11-22 02:42:26,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:42:26,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:42:26,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:42:26,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:42:26,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:42:26,933 INFO L87 Difference]: Start difference. First operand 499 states and 613 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:42:30,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:42:30,255 INFO L93 Difference]: Finished difference Result 1123 states and 1435 transitions. [2022-11-22 02:42:30,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:42:30,256 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 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 155 [2022-11-22 02:42:30,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:42:30,257 INFO L225 Difference]: With dead ends: 1123 [2022-11-22 02:42:30,257 INFO L226 Difference]: Without dead ends: 811 [2022-11-22 02:42:30,257 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:42:30,258 INFO L413 NwaCegarLoop]: 251 mSDtfsCounter, 72 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:42:30,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 412 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:42:30,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 811 states. [2022-11-22 02:42:33,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 811 to 785. [2022-11-22 02:42:33,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 785 states, 784 states have (on average 1.2589285714285714) internal successors, (987), 784 states have internal predecessors, (987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:42:33,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 785 states to 785 states and 987 transitions. [2022-11-22 02:42:33,349 INFO L78 Accepts]: Start accepts. Automaton has 785 states and 987 transitions. Word has length 155 [2022-11-22 02:42:33,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:42:33,349 INFO L495 AbstractCegarLoop]: Abstraction has 785 states and 987 transitions. [2022-11-22 02:42:33,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:42:33,349 INFO L276 IsEmpty]: Start isEmpty. Operand 785 states and 987 transitions. [2022-11-22 02:42:33,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-11-22 02:42:33,350 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:42:33,350 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:42:33,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2022-11-22 02:42:33,350 INFO L420 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:42:33,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:42:33,350 INFO L85 PathProgramCache]: Analyzing trace with hash 507100104, now seen corresponding path program 1 times [2022-11-22 02:42:33,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:42:33,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880677886] [2022-11-22 02:42:33,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:42:33,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:42:33,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:42:33,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:42:33,516 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:42:33,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880677886] [2022-11-22 02:42:33,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880677886] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:42:33,516 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:42:33,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:42:33,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470933693] [2022-11-22 02:42:33,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:42:33,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:42:33,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:42:33,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:42:33,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:42:33,518 INFO L87 Difference]: Start difference. First operand 785 states and 987 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:42:39,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:42:39,660 INFO L93 Difference]: Finished difference Result 1981 states and 2557 transitions. [2022-11-22 02:42:39,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:42:39,661 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 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 [2022-11-22 02:42:39,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:42:39,663 INFO L225 Difference]: With dead ends: 1981 [2022-11-22 02:42:39,663 INFO L226 Difference]: Without dead ends: 1383 [2022-11-22 02:42:39,663 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:42:39,664 INFO L413 NwaCegarLoop]: 244 mSDtfsCounter, 65 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:42:39,664 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 413 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:42:39,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1383 states. [2022-11-22 02:42:45,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1383 to 1333. [2022-11-22 02:42:45,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1333 states, 1332 states have (on average 1.2755255255255256) internal successors, (1699), 1332 states have internal predecessors, (1699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:42:45,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1333 states to 1333 states and 1699 transitions. [2022-11-22 02:42:45,588 INFO L78 Accepts]: Start accepts. Automaton has 1333 states and 1699 transitions. Word has length 158 [2022-11-22 02:42:45,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:42:45,588 INFO L495 AbstractCegarLoop]: Abstraction has 1333 states and 1699 transitions. [2022-11-22 02:42:45,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:42:45,589 INFO L276 IsEmpty]: Start isEmpty. Operand 1333 states and 1699 transitions. [2022-11-22 02:42:45,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-11-22 02:42:45,589 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:42:45,589 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:42:45,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2022-11-22 02:42:45,590 INFO L420 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:42:45,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:42:45,590 INFO L85 PathProgramCache]: Analyzing trace with hash -923206139, now seen corresponding path program 1 times [2022-11-22 02:42:45,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:42:45,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860792698] [2022-11-22 02:42:45,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:42:45,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:42:45,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:42:45,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:42:45,797 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:42:45,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860792698] [2022-11-22 02:42:45,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860792698] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:42:45,798 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:42:45,798 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:42:45,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798009601] [2022-11-22 02:42:45,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:42:45,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:42:45,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:42:45,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:42:45,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:42:45,800 INFO L87 Difference]: Start difference. First operand 1333 states and 1699 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:42:57,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:42:57,545 INFO L93 Difference]: Finished difference Result 3625 states and 4693 transitions. [2022-11-22 02:42:57,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:42:57,545 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 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 161 [2022-11-22 02:42:57,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:42:57,547 INFO L225 Difference]: With dead ends: 3625 [2022-11-22 02:42:57,547 INFO L226 Difference]: Without dead ends: 2479 [2022-11-22 02:42:57,549 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:42:57,549 INFO L413 NwaCegarLoop]: 237 mSDtfsCounter, 58 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:42:57,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 414 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:42:57,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2479 states. [2022-11-22 02:43:08,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2479 to 2381. [2022-11-22 02:43:08,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2381 states, 2380 states have (on average 1.2819327731092438) internal successors, (3051), 2380 states have internal predecessors, (3051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:43:08,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2381 states to 2381 states and 3051 transitions. [2022-11-22 02:43:08,797 INFO L78 Accepts]: Start accepts. Automaton has 2381 states and 3051 transitions. Word has length 161 [2022-11-22 02:43:08,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:43:08,797 INFO L495 AbstractCegarLoop]: Abstraction has 2381 states and 3051 transitions. [2022-11-22 02:43:08,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:43:08,797 INFO L276 IsEmpty]: Start isEmpty. Operand 2381 states and 3051 transitions. [2022-11-22 02:43:08,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-11-22 02:43:08,798 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:43:08,798 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:43:08,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2022-11-22 02:43:08,798 INFO L420 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:43:08,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:43:08,799 INFO L85 PathProgramCache]: Analyzing trace with hash 1834312951, now seen corresponding path program 1 times [2022-11-22 02:43:08,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:43:08,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628319999] [2022-11-22 02:43:08,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:43:08,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:43:08,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:43:08,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:43:08,990 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:43:08,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628319999] [2022-11-22 02:43:08,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628319999] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:43:08,991 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:43:08,991 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:43:08,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55695498] [2022-11-22 02:43:08,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:43:08,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:43:08,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:43:08,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:43:08,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:43:08,993 INFO L87 Difference]: Start difference. First operand 2381 states and 3051 transitions. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:43:31,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:43:31,576 INFO L93 Difference]: Finished difference Result 6769 states and 8749 transitions. [2022-11-22 02:43:31,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:43:31,576 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 0 states have call successors, (0), 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 164 [2022-11-22 02:43:31,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:43:31,580 INFO L225 Difference]: With dead ends: 6769 [2022-11-22 02:43:31,580 INFO L226 Difference]: Without dead ends: 4575 [2022-11-22 02:43:31,582 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:43:31,582 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 51 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:43:31,582 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 415 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 02:43:31,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4575 states. [2022-11-22 02:43:53,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4575 to 4381. [2022-11-22 02:43:53,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4381 states, 4380 states have (on average 1.2810502283105023) internal successors, (5611), 4380 states have internal predecessors, (5611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:43:53,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4381 states to 4381 states and 5611 transitions. [2022-11-22 02:43:53,399 INFO L78 Accepts]: Start accepts. Automaton has 4381 states and 5611 transitions. Word has length 164 [2022-11-22 02:43:53,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:43:53,399 INFO L495 AbstractCegarLoop]: Abstraction has 4381 states and 5611 transitions. [2022-11-22 02:43:53,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:43:53,399 INFO L276 IsEmpty]: Start isEmpty. Operand 4381 states and 5611 transitions. [2022-11-22 02:43:53,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-11-22 02:43:53,400 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:43:53,400 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:43:53,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2022-11-22 02:43:53,400 INFO L420 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:43:53,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:43:53,401 INFO L85 PathProgramCache]: Analyzing trace with hash -1951979049, now seen corresponding path program 1 times [2022-11-22 02:43:53,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:43:53,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577994127] [2022-11-22 02:43:53,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:43:53,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:43:53,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:43:53,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:43:53,634 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:43:53,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577994127] [2022-11-22 02:43:53,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577994127] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:43:53,635 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:43:53,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:43:53,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590610955] [2022-11-22 02:43:53,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:43:53,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:43:53,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:43:53,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:43:53,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:43:53,636 INFO L87 Difference]: Start difference. First operand 4381 states and 5611 transitions. Second operand has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:44:42,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:44:42,205 INFO L93 Difference]: Finished difference Result 12769 states and 16429 transitions. [2022-11-22 02:44:42,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:44:42,205 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 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 167 [2022-11-22 02:44:42,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:44:42,214 INFO L225 Difference]: With dead ends: 12769 [2022-11-22 02:44:42,215 INFO L226 Difference]: Without dead ends: 8575 [2022-11-22 02:44:42,218 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:44:42,218 INFO L413 NwaCegarLoop]: 222 mSDtfsCounter, 40 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:44:42,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 415 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:44:42,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8575 states. [2022-11-22 02:45:27,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8575 to 8189. [2022-11-22 02:45:27,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8189 states, 8188 states have (on average 1.2754030288226674) internal successors, (10443), 8188 states have internal predecessors, (10443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:45:27,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8189 states to 8189 states and 10443 transitions. [2022-11-22 02:45:27,163 INFO L78 Accepts]: Start accepts. Automaton has 8189 states and 10443 transitions. Word has length 167 [2022-11-22 02:45:27,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:45:27,163 INFO L495 AbstractCegarLoop]: Abstraction has 8189 states and 10443 transitions. [2022-11-22 02:45:27,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:45:27,163 INFO L276 IsEmpty]: Start isEmpty. Operand 8189 states and 10443 transitions. [2022-11-22 02:45:27,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-11-22 02:45:27,164 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:45:27,164 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:45:27,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2022-11-22 02:45:27,164 INFO L420 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 02:45:27,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:45:27,164 INFO L85 PathProgramCache]: Analyzing trace with hash 568446086, now seen corresponding path program 1 times [2022-11-22 02:45:27,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:45:27,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076117147] [2022-11-22 02:45:27,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:45:27,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:45:27,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:45:27,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:45:27,504 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:45:27,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076117147] [2022-11-22 02:45:27,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076117147] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:45:27,505 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:45:27,505 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-22 02:45:27,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190727546] [2022-11-22 02:45:27,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:45:27,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-22 02:45:27,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:45:27,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-22 02:45:27,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-22 02:45:27,506 INFO L87 Difference]: Start difference. First operand 8189 states and 10443 transitions. Second operand has 9 states, 9 states have (on average 18.88888888888889) internal successors, (170), 9 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)