./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a 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_a87aa7fb-1fc7-4b14-b3c1-7d5c8d33986c/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a87aa7fb-1fc7-4b14-b3c1-7d5c8d33986c/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a87aa7fb-1fc7-4b14-b3c1-7d5c8d33986c/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a87aa7fb-1fc7-4b14-b3c1-7d5c8d33986c/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a87aa7fb-1fc7-4b14-b3c1-7d5c8d33986c/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a87aa7fb-1fc7-4b14-b3c1-7d5c8d33986c/bin/utaipan-ByfvJB40ur --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 7ee0c03ea7571fbf8ad45188f5238b16bf8ad4a8ddf56fc7d5d394e59af71d1f --- 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-38b53e6 [2022-11-25 23:57:35,482 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:57:35,488 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:57:35,532 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:57:35,532 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:57:35,533 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:57:35,536 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:57:35,540 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:57:35,546 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:57:35,549 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:57:35,550 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:57:35,551 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:57:35,552 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:57:35,553 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:57:35,554 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:57:35,555 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:57:35,556 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:57:35,557 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:57:35,559 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:57:35,567 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:57:35,569 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:57:35,573 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:57:35,575 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:57:35,576 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:57:35,579 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:57:35,580 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:57:35,580 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:57:35,581 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:57:35,581 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:57:35,583 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:57:35,583 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:57:35,584 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:57:35,585 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:57:35,585 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:57:35,586 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:57:35,587 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:57:35,587 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:57:35,588 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:57:35,588 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:57:35,589 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:57:35,590 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:57:35,591 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a87aa7fb-1fc7-4b14-b3c1-7d5c8d33986c/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-25 23:57:35,614 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:57:35,615 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:57:35,615 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:57:35,615 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:57:35,616 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:57:35,616 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:57:35,617 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:57:35,617 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:57:35,617 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:57:35,617 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 23:57:35,617 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:57:35,618 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:57:35,618 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 23:57:35,618 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 23:57:35,618 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:57:35,619 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 23:57:35,619 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 23:57:35,619 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 23:57:35,620 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:57:35,620 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 23:57:35,620 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 23:57:35,621 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 23:57:35,621 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:57:35,621 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:57:35,622 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:57:35,622 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:57:35,622 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 23:57:35,622 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:57:35,623 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:57:35,623 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:57:35,623 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:57:35,623 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:57:35,624 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:57:35,624 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:57:35,624 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 23:57:35,625 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:57:35,625 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:57:35,625 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 23:57:35,625 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 23:57:35,626 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:57:35,626 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:57:35,626 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_a87aa7fb-1fc7-4b14-b3c1-7d5c8d33986c/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a87aa7fb-1fc7-4b14-b3c1-7d5c8d33986c/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7ee0c03ea7571fbf8ad45188f5238b16bf8ad4a8ddf56fc7d5d394e59af71d1f [2022-11-25 23:57:35,932 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:57:35,971 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:57:35,974 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:57:35,976 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:57:35,976 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:57:35,977 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a87aa7fb-1fc7-4b14-b3c1-7d5c8d33986c/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c [2022-11-25 23:57:39,171 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:57:39,624 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:57:39,626 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a87aa7fb-1fc7-4b14-b3c1-7d5c8d33986c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c [2022-11-25 23:57:39,660 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a87aa7fb-1fc7-4b14-b3c1-7d5c8d33986c/bin/utaipan-ByfvJB40ur/data/fe75b02ee/7f0fdee7da5c477fb5e2acca434a2a5d/FLAGd93dfe37a [2022-11-25 23:57:39,680 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a87aa7fb-1fc7-4b14-b3c1-7d5c8d33986c/bin/utaipan-ByfvJB40ur/data/fe75b02ee/7f0fdee7da5c477fb5e2acca434a2a5d [2022-11-25 23:57:39,683 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:57:39,685 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:57:39,689 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:57:39,689 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:57:39,693 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:57:39,694 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:57:39" (1/1) ... [2022-11-25 23:57:39,695 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@691b875e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:57:39, skipping insertion in model container [2022-11-25 23:57:39,696 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:57:39" (1/1) ... [2022-11-25 23:57:39,704 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:57:39,844 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:57:40,478 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_a87aa7fb-1fc7-4b14-b3c1-7d5c8d33986c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[37768,37781] [2022-11-25 23:57:40,561 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_a87aa7fb-1fc7-4b14-b3c1-7d5c8d33986c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[53783,53796] [2022-11-25 23:57:40,590 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_a87aa7fb-1fc7-4b14-b3c1-7d5c8d33986c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[61800,61813] [2022-11-25 23:57:40,605 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_a87aa7fb-1fc7-4b14-b3c1-7d5c8d33986c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[65782,65795] [2022-11-25 23:57:40,619 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_a87aa7fb-1fc7-4b14-b3c1-7d5c8d33986c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[69649,69662] [2022-11-25 23:57:40,689 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_a87aa7fb-1fc7-4b14-b3c1-7d5c8d33986c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[86712,86725] [2022-11-25 23:57:40,718 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_a87aa7fb-1fc7-4b14-b3c1-7d5c8d33986c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[94766,94779] [2022-11-25 23:57:40,735 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_a87aa7fb-1fc7-4b14-b3c1-7d5c8d33986c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[98785,98798] [2022-11-25 23:57:40,748 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_a87aa7fb-1fc7-4b14-b3c1-7d5c8d33986c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[102689,102702] [2022-11-25 23:57:40,764 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_a87aa7fb-1fc7-4b14-b3c1-7d5c8d33986c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[107203,107216] [2022-11-25 23:57:40,777 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_a87aa7fb-1fc7-4b14-b3c1-7d5c8d33986c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[111131,111144] [2022-11-25 23:57:40,790 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_a87aa7fb-1fc7-4b14-b3c1-7d5c8d33986c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[115150,115163] [2022-11-25 23:57:40,809 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_a87aa7fb-1fc7-4b14-b3c1-7d5c8d33986c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[119054,119067] [2022-11-25 23:57:40,825 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_a87aa7fb-1fc7-4b14-b3c1-7d5c8d33986c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[123189,123202] [2022-11-25 23:57:40,854 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_a87aa7fb-1fc7-4b14-b3c1-7d5c8d33986c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[127260,127273] [2022-11-25 23:57:40,867 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_a87aa7fb-1fc7-4b14-b3c1-7d5c8d33986c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[131260,131273] [2022-11-25 23:57:40,922 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:57:40,938 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:57:41,121 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_a87aa7fb-1fc7-4b14-b3c1-7d5c8d33986c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[37768,37781] [2022-11-25 23:57:41,191 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_a87aa7fb-1fc7-4b14-b3c1-7d5c8d33986c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[53783,53796] [2022-11-25 23:57:41,217 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_a87aa7fb-1fc7-4b14-b3c1-7d5c8d33986c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[61800,61813] [2022-11-25 23:57:41,234 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_a87aa7fb-1fc7-4b14-b3c1-7d5c8d33986c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[65782,65795] [2022-11-25 23:57:41,245 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a87aa7fb-1fc7-4b14-b3c1-7d5c8d33986c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[69649,69662] [2022-11-25 23:57:41,293 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_a87aa7fb-1fc7-4b14-b3c1-7d5c8d33986c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[86712,86725] [2022-11-25 23:57:41,317 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_a87aa7fb-1fc7-4b14-b3c1-7d5c8d33986c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[94766,94779] [2022-11-25 23:57:41,330 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_a87aa7fb-1fc7-4b14-b3c1-7d5c8d33986c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[98785,98798] [2022-11-25 23:57:41,341 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_a87aa7fb-1fc7-4b14-b3c1-7d5c8d33986c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[102689,102702] [2022-11-25 23:57:41,355 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_a87aa7fb-1fc7-4b14-b3c1-7d5c8d33986c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[107203,107216] [2022-11-25 23:57:41,367 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_a87aa7fb-1fc7-4b14-b3c1-7d5c8d33986c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[111131,111144] [2022-11-25 23:57:41,379 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_a87aa7fb-1fc7-4b14-b3c1-7d5c8d33986c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[115150,115163] [2022-11-25 23:57:41,392 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_a87aa7fb-1fc7-4b14-b3c1-7d5c8d33986c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[119054,119067] [2022-11-25 23:57:41,406 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_a87aa7fb-1fc7-4b14-b3c1-7d5c8d33986c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[123189,123202] [2022-11-25 23:57:41,418 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_a87aa7fb-1fc7-4b14-b3c1-7d5c8d33986c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[127260,127273] [2022-11-25 23:57:41,431 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_a87aa7fb-1fc7-4b14-b3c1-7d5c8d33986c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[131260,131273] [2022-11-25 23:57:41,461 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:57:41,496 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:57:41,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:57:41 WrapperNode [2022-11-25 23:57:41,497 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:57:41,499 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:57:41,499 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:57:41,499 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:57:41,507 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:57:41" (1/1) ... [2022-11-25 23:57:41,564 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:57:41" (1/1) ... [2022-11-25 23:57:41,696 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 5851 [2022-11-25 23:57:41,697 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:57:41,698 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:57:41,698 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:57:41,698 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:57:41,708 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:57:41" (1/1) ... [2022-11-25 23:57:41,708 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:57:41" (1/1) ... [2022-11-25 23:57:41,730 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:57:41" (1/1) ... [2022-11-25 23:57:41,730 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:57:41" (1/1) ... [2022-11-25 23:57:41,800 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:57:41" (1/1) ... [2022-11-25 23:57:41,826 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:57:41" (1/1) ... [2022-11-25 23:57:41,835 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:57:41" (1/1) ... [2022-11-25 23:57:41,847 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:57:41" (1/1) ... [2022-11-25 23:57:41,865 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:57:41,866 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:57:41,866 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:57:41,866 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:57:41,867 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:57:41" (1/1) ... [2022-11-25 23:57:41,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:57:41,884 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a87aa7fb-1fc7-4b14-b3c1-7d5c8d33986c/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:57:41,899 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a87aa7fb-1fc7-4b14-b3c1-7d5c8d33986c/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:57:41,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a87aa7fb-1fc7-4b14-b3c1-7d5c8d33986c/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:57:41,947 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:57:41,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 23:57:41,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:57:41,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:57:42,300 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:57:42,302 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:57:45,293 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:57:45,523 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:57:45,524 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 23:57:45,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:57:45 BoogieIcfgContainer [2022-11-25 23:57:45,530 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:57:45,536 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:57:45,536 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:57:45,539 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:57:45,540 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:57:39" (1/3) ... [2022-11-25 23:57:45,542 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71cf12bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:57:45, skipping insertion in model container [2022-11-25 23:57:45,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:57:41" (2/3) ... [2022-11-25 23:57:45,544 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71cf12bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:57:45, skipping insertion in model container [2022-11-25 23:57:45,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:57:45" (3/3) ... [2022-11-25 23:57:45,547 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+sep-reducer.c [2022-11-25 23:57:45,572 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:57:45,573 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-11-25 23:57:45,676 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:57:45,686 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;@3ac53606, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:57:45,687 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-11-25 23:57:45,697 INFO L276 IsEmpty]: Start isEmpty. Operand has 1170 states, 1153 states have (on average 1.7710320901994796) internal successors, (2042), 1169 states have internal predecessors, (2042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:57:45,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-25 23:57:45,726 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:57:45,727 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:57:45,728 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 23:57:45,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:57:45,742 INFO L85 PathProgramCache]: Analyzing trace with hash -959725519, now seen corresponding path program 1 times [2022-11-25 23:57:45,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:57:45,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723022524] [2022-11-25 23:57:45,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:57:45,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:57:46,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:57:46,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:57:46,566 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:57:46,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723022524] [2022-11-25 23:57:46,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723022524] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:57:46,567 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:57:46,568 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:57:46,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4043559] [2022-11-25 23:57:46,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:57:46,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:57:46,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:57:46,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:57:46,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:57:46,622 INFO L87 Difference]: Start difference. First operand has 1170 states, 1153 states have (on average 1.7710320901994796) internal successors, (2042), 1169 states have internal predecessors, (2042), 0 states have call successors, (0), 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 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:57:47,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:57:47,803 INFO L93 Difference]: Finished difference Result 1365 states and 2339 transitions. [2022-11-25 23:57:47,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:57:47,805 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2022-11-25 23:57:47,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:57:47,826 INFO L225 Difference]: With dead ends: 1365 [2022-11-25 23:57:47,827 INFO L226 Difference]: Without dead ends: 788 [2022-11-25 23:57:47,831 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-25 23:57:47,835 INFO L413 NwaCegarLoop]: 778 mSDtfsCounter, 3906 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 564 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3906 SdHoareTripleChecker+Valid, 818 SdHoareTripleChecker+Invalid, 577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-25 23:57:47,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3906 Valid, 818 Invalid, 577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 564 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-25 23:57:47,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 788 states. [2022-11-25 23:57:47,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 788 to 788. [2022-11-25 23:57:47,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 788 states, 772 states have (on average 1.2681347150259068) internal successors, (979), 787 states have internal predecessors, (979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:57:47,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 788 states to 788 states and 979 transitions. [2022-11-25 23:57:47,970 INFO L78 Accepts]: Start accepts. Automaton has 788 states and 979 transitions. Word has length 72 [2022-11-25 23:57:47,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:57:47,970 INFO L495 AbstractCegarLoop]: Abstraction has 788 states and 979 transitions. [2022-11-25 23:57:47,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:57:47,971 INFO L276 IsEmpty]: Start isEmpty. Operand 788 states and 979 transitions. [2022-11-25 23:57:47,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-25 23:57:47,975 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:57:47,975 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:57:47,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 23:57:47,977 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 23:57:47,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:57:47,977 INFO L85 PathProgramCache]: Analyzing trace with hash -968066446, now seen corresponding path program 1 times [2022-11-25 23:57:47,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:57:47,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299258812] [2022-11-25 23:57:47,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:57:47,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:57:48,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:57:48,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:57:48,227 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:57:48,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299258812] [2022-11-25 23:57:48,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299258812] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:57:48,228 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:57:48,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:57:48,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834031968] [2022-11-25 23:57:48,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:57:48,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:57:48,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:57:48,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:57:48,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:57:48,232 INFO L87 Difference]: Start difference. First operand 788 states and 979 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:57:49,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:57:49,087 INFO L93 Difference]: Finished difference Result 1366 states and 1712 transitions. [2022-11-25 23:57:49,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:57:49,088 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2022-11-25 23:57:49,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:57:49,092 INFO L225 Difference]: With dead ends: 1366 [2022-11-25 23:57:49,092 INFO L226 Difference]: Without dead ends: 966 [2022-11-25 23:57:49,094 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 [2022-11-25 23:57:49,095 INFO L413 NwaCegarLoop]: 445 mSDtfsCounter, 3145 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 608 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3145 SdHoareTripleChecker+Valid, 657 SdHoareTripleChecker+Invalid, 613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-25 23:57:49,096 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3145 Valid, 657 Invalid, 613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 608 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-25 23:57:49,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 966 states. [2022-11-25 23:57:49,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 966 to 872. [2022-11-25 23:57:49,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 872 states, 856 states have (on average 1.3189252336448598) internal successors, (1129), 871 states have internal predecessors, (1129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:57:49,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 872 states to 872 states and 1129 transitions. [2022-11-25 23:57:49,194 INFO L78 Accepts]: Start accepts. Automaton has 872 states and 1129 transitions. Word has length 72 [2022-11-25 23:57:49,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:57:49,195 INFO L495 AbstractCegarLoop]: Abstraction has 872 states and 1129 transitions. [2022-11-25 23:57:49,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:57:49,197 INFO L276 IsEmpty]: Start isEmpty. Operand 872 states and 1129 transitions. [2022-11-25 23:57:49,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-25 23:57:49,201 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:57:49,201 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:57:49,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 23:57:49,202 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 23:57:49,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:57:49,211 INFO L85 PathProgramCache]: Analyzing trace with hash -1526182328, now seen corresponding path program 1 times [2022-11-25 23:57:49,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:57:49,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584031208] [2022-11-25 23:57:49,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:57:49,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:57:49,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:57:49,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:57:49,416 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:57:49,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584031208] [2022-11-25 23:57:49,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584031208] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:57:49,420 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:57:49,420 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:57:49,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654578867] [2022-11-25 23:57:49,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:57:49,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:57:49,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:57:49,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:57:49,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:57:49,422 INFO L87 Difference]: Start difference. First operand 872 states and 1129 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:57:49,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:57:49,817 INFO L93 Difference]: Finished difference Result 1042 states and 1327 transitions. [2022-11-25 23:57:49,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:57:49,818 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2022-11-25 23:57:49,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:57:49,823 INFO L225 Difference]: With dead ends: 1042 [2022-11-25 23:57:49,823 INFO L226 Difference]: Without dead ends: 618 [2022-11-25 23:57:49,824 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 [2022-11-25 23:57:49,827 INFO L413 NwaCegarLoop]: 308 mSDtfsCounter, 1637 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1637 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 23:57:49,831 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1637 Valid, 336 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 23:57:49,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 618 states. [2022-11-25 23:57:49,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 618 to 618. [2022-11-25 23:57:49,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 618 states, 602 states have (on average 1.318936877076412) internal successors, (794), 617 states have internal predecessors, (794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:57:49,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 794 transitions. [2022-11-25 23:57:49,880 INFO L78 Accepts]: Start accepts. Automaton has 618 states and 794 transitions. Word has length 72 [2022-11-25 23:57:49,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:57:49,881 INFO L495 AbstractCegarLoop]: Abstraction has 618 states and 794 transitions. [2022-11-25 23:57:49,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:57:49,882 INFO L276 IsEmpty]: Start isEmpty. Operand 618 states and 794 transitions. [2022-11-25 23:57:49,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-25 23:57:49,885 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:57:49,885 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:57:49,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 23:57:49,886 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 23:57:49,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:57:49,886 INFO L85 PathProgramCache]: Analyzing trace with hash 1953545306, now seen corresponding path program 1 times [2022-11-25 23:57:49,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:57:49,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175784696] [2022-11-25 23:57:49,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:57:49,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:57:49,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:57:50,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:57:50,106 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:57:50,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175784696] [2022-11-25 23:57:50,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175784696] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:57:50,106 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:57:50,106 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:57:50,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823053669] [2022-11-25 23:57:50,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:57:50,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:57:50,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:57:50,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:57:50,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:57:50,109 INFO L87 Difference]: Start difference. First operand 618 states and 794 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:57:50,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:57:50,438 INFO L93 Difference]: Finished difference Result 885 states and 1138 transitions. [2022-11-25 23:57:50,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:57:50,439 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2022-11-25 23:57:50,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:57:50,442 INFO L225 Difference]: With dead ends: 885 [2022-11-25 23:57:50,443 INFO L226 Difference]: Without dead ends: 552 [2022-11-25 23:57:50,443 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 [2022-11-25 23:57:50,446 INFO L413 NwaCegarLoop]: 298 mSDtfsCounter, 1472 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1472 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 23:57:50,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1472 Valid, 310 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 23:57:50,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2022-11-25 23:57:50,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 552. [2022-11-25 23:57:50,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 536 states have (on average 1.328358208955224) internal successors, (712), 551 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:57:50,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 712 transitions. [2022-11-25 23:57:50,506 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 712 transitions. Word has length 74 [2022-11-25 23:57:50,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:57:50,508 INFO L495 AbstractCegarLoop]: Abstraction has 552 states and 712 transitions. [2022-11-25 23:57:50,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:57:50,508 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 712 transitions. [2022-11-25 23:57:50,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-25 23:57:50,509 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:57:50,510 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:57:50,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 23:57:50,512 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 23:57:50,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:57:50,513 INFO L85 PathProgramCache]: Analyzing trace with hash -1983390979, now seen corresponding path program 1 times [2022-11-25 23:57:50,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:57:50,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180712622] [2022-11-25 23:57:50,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:57:50,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:57:50,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:57:50,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:57:50,662 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:57:50,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180712622] [2022-11-25 23:57:50,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180712622] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:57:50,665 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:57:50,665 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:57:50,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997927996] [2022-11-25 23:57:50,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:57:50,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:57:50,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:57:50,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:57:50,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:57:50,668 INFO L87 Difference]: Start difference. First operand 552 states and 712 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:57:51,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:57:51,048 INFO L93 Difference]: Finished difference Result 801 states and 1029 transitions. [2022-11-25 23:57:51,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:57:51,049 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-11-25 23:57:51,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:57:51,051 INFO L225 Difference]: With dead ends: 801 [2022-11-25 23:57:51,051 INFO L226 Difference]: Without dead ends: 544 [2022-11-25 23:57:51,052 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 [2022-11-25 23:57:51,053 INFO L413 NwaCegarLoop]: 249 mSDtfsCounter, 1395 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1395 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 23:57:51,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1395 Valid, 285 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 23:57:51,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2022-11-25 23:57:51,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 544. [2022-11-25 23:57:51,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 528 states have (on average 1.3276515151515151) internal successors, (701), 543 states have internal predecessors, (701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:57:51,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 701 transitions. [2022-11-25 23:57:51,101 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 701 transitions. Word has length 76 [2022-11-25 23:57:51,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:57:51,102 INFO L495 AbstractCegarLoop]: Abstraction has 544 states and 701 transitions. [2022-11-25 23:57:51,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:57:51,102 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 701 transitions. [2022-11-25 23:57:51,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-25 23:57:51,104 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:57:51,104 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:57:51,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 23:57:51,104 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 23:57:51,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:57:51,105 INFO L85 PathProgramCache]: Analyzing trace with hash 802660192, now seen corresponding path program 1 times [2022-11-25 23:57:51,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:57:51,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70149013] [2022-11-25 23:57:51,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:57:51,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:57:51,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:57:51,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:57:51,656 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:57:51,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70149013] [2022-11-25 23:57:51,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70149013] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:57:51,657 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:57:51,657 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 23:57:51,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772408656] [2022-11-25 23:57:51,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:57:51,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 23:57:51,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:57:51,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 23:57:51,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 23:57:51,659 INFO L87 Difference]: Start difference. First operand 544 states and 701 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:57:52,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:57:52,374 INFO L93 Difference]: Finished difference Result 1001 states and 1246 transitions. [2022-11-25 23:57:52,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 23:57:52,375 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-11-25 23:57:52,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:57:52,379 INFO L225 Difference]: With dead ends: 1001 [2022-11-25 23:57:52,379 INFO L226 Difference]: Without dead ends: 751 [2022-11-25 23:57:52,380 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-25 23:57:52,381 INFO L413 NwaCegarLoop]: 263 mSDtfsCounter, 2275 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 579 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2275 SdHoareTripleChecker+Valid, 678 SdHoareTripleChecker+Invalid, 580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-25 23:57:52,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2275 Valid, 678 Invalid, 580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 579 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-25 23:57:52,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 751 states. [2022-11-25 23:57:52,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 751 to 544. [2022-11-25 23:57:52,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 528 states have (on average 1.3257575757575757) internal successors, (700), 543 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:57:52,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 700 transitions. [2022-11-25 23:57:52,466 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 700 transitions. Word has length 78 [2022-11-25 23:57:52,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:57:52,466 INFO L495 AbstractCegarLoop]: Abstraction has 544 states and 700 transitions. [2022-11-25 23:57:52,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:57:52,467 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 700 transitions. [2022-11-25 23:57:52,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-25 23:57:52,468 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:57:52,468 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:57:52,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 23:57:52,469 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 23:57:52,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:57:52,469 INFO L85 PathProgramCache]: Analyzing trace with hash 1668159008, now seen corresponding path program 1 times [2022-11-25 23:57:52,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:57:52,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543985905] [2022-11-25 23:57:52,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:57:52,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:57:52,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:57:52,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:57:52,831 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:57:52,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543985905] [2022-11-25 23:57:52,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543985905] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:57:52,831 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:57:52,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:57:52,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35658399] [2022-11-25 23:57:52,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:57:52,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:57:52,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:57:52,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:57:52,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:57:52,833 INFO L87 Difference]: Start difference. First operand 544 states and 700 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:57:54,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:57:54,025 INFO L93 Difference]: Finished difference Result 1144 states and 1482 transitions. [2022-11-25 23:57:54,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 23:57:54,026 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-11-25 23:57:54,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:57:54,030 INFO L225 Difference]: With dead ends: 1144 [2022-11-25 23:57:54,030 INFO L226 Difference]: Without dead ends: 1029 [2022-11-25 23:57:54,030 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 [2022-11-25 23:57:54,031 INFO L413 NwaCegarLoop]: 329 mSDtfsCounter, 2187 mSDsluCounter, 1046 mSDsCounter, 0 mSdLazyCounter, 1084 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2187 SdHoareTripleChecker+Valid, 1375 SdHoareTripleChecker+Invalid, 1088 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1084 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-25 23:57:54,032 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2187 Valid, 1375 Invalid, 1088 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1084 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-25 23:57:54,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1029 states. [2022-11-25 23:57:54,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1029 to 544. [2022-11-25 23:57:54,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 528 states have (on average 1.3238636363636365) internal successors, (699), 543 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:57:54,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 699 transitions. [2022-11-25 23:57:54,105 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 699 transitions. Word has length 78 [2022-11-25 23:57:54,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:57:54,105 INFO L495 AbstractCegarLoop]: Abstraction has 544 states and 699 transitions. [2022-11-25 23:57:54,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:57:54,106 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 699 transitions. [2022-11-25 23:57:54,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-25 23:57:54,107 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:57:54,107 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:57:54,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 23:57:54,108 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 23:57:54,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:57:54,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1675317728, now seen corresponding path program 1 times [2022-11-25 23:57:54,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:57:54,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184121437] [2022-11-25 23:57:54,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:57:54,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:57:54,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:57:54,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:57:54,481 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:57:54,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184121437] [2022-11-25 23:57:54,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184121437] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:57:54,482 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:57:54,482 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:57:54,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914480384] [2022-11-25 23:57:54,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:57:54,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:57:54,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:57:54,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:57:54,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:57:54,484 INFO L87 Difference]: Start difference. First operand 544 states and 699 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:57:55,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:57:55,466 INFO L93 Difference]: Finished difference Result 796 states and 1026 transitions. [2022-11-25 23:57:55,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 23:57:55,467 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-11-25 23:57:55,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:57:55,470 INFO L225 Difference]: With dead ends: 796 [2022-11-25 23:57:55,470 INFO L226 Difference]: Without dead ends: 638 [2022-11-25 23:57:55,471 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 [2022-11-25 23:57:55,471 INFO L413 NwaCegarLoop]: 380 mSDtfsCounter, 1149 mSDsluCounter, 1267 mSDsCounter, 0 mSdLazyCounter, 1050 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1149 SdHoareTripleChecker+Valid, 1647 SdHoareTripleChecker+Invalid, 1054 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1050 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-25 23:57:55,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1149 Valid, 1647 Invalid, 1054 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1050 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-25 23:57:55,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2022-11-25 23:57:55,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 544. [2022-11-25 23:57:55,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 528 states have (on average 1.321969696969697) internal successors, (698), 543 states have internal predecessors, (698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:57:55,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 698 transitions. [2022-11-25 23:57:55,545 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 698 transitions. Word has length 78 [2022-11-25 23:57:55,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:57:55,546 INFO L495 AbstractCegarLoop]: Abstraction has 544 states and 698 transitions. [2022-11-25 23:57:55,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:57:55,546 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 698 transitions. [2022-11-25 23:57:55,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-25 23:57:55,547 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:57:55,548 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:57:55,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 23:57:55,548 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 23:57:55,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:57:55,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1605144151, now seen corresponding path program 1 times [2022-11-25 23:57:55,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:57:55,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093603967] [2022-11-25 23:57:55,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:57:55,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:57:55,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:57:55,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:57:55,895 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:57:55,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093603967] [2022-11-25 23:57:55,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093603967] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:57:55,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:57:55,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:57:55,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722198885] [2022-11-25 23:57:55,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:57:55,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:57:55,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:57:55,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:57:55,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:57:55,898 INFO L87 Difference]: Start difference. First operand 544 states and 698 transitions. Second operand has 8 states, 8 states have (on average 9.875) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:57:57,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:57:57,051 INFO L93 Difference]: Finished difference Result 1099 states and 1413 transitions. [2022-11-25 23:57:57,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 23:57:57,051 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-11-25 23:57:57,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:57:57,055 INFO L225 Difference]: With dead ends: 1099 [2022-11-25 23:57:57,055 INFO L226 Difference]: Without dead ends: 1003 [2022-11-25 23:57:57,056 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2022-11-25 23:57:57,058 INFO L413 NwaCegarLoop]: 363 mSDtfsCounter, 1668 mSDsluCounter, 1091 mSDsCounter, 0 mSdLazyCounter, 1093 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1668 SdHoareTripleChecker+Valid, 1454 SdHoareTripleChecker+Invalid, 1097 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1093 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-25 23:57:57,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1668 Valid, 1454 Invalid, 1097 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1093 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-25 23:57:57,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1003 states. [2022-11-25 23:57:57,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1003 to 544. [2022-11-25 23:57:57,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 528 states have (on average 1.3200757575757576) internal successors, (697), 543 states have internal predecessors, (697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:57:57,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 697 transitions. [2022-11-25 23:57:57,144 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 697 transitions. Word has length 79 [2022-11-25 23:57:57,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:57:57,145 INFO L495 AbstractCegarLoop]: Abstraction has 544 states and 697 transitions. [2022-11-25 23:57:57,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:57:57,145 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 697 transitions. [2022-11-25 23:57:57,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-25 23:57:57,147 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:57:57,147 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:57:57,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 23:57:57,148 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 23:57:57,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:57:57,149 INFO L85 PathProgramCache]: Analyzing trace with hash 968830309, now seen corresponding path program 1 times [2022-11-25 23:57:57,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:57:57,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381291661] [2022-11-25 23:57:57,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:57:57,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:57:57,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:57:57,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:57:57,849 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:57:57,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381291661] [2022-11-25 23:57:57,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381291661] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:57:57,850 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:57:57,850 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-25 23:57:57,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670241469] [2022-11-25 23:57:57,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:57:57,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 23:57:57,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:57:57,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 23:57:57,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-11-25 23:57:57,852 INFO L87 Difference]: Start difference. First operand 544 states and 697 transitions. Second operand has 10 states, 10 states have (on average 8.0) internal successors, (80), 9 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:57:59,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:57:59,323 INFO L93 Difference]: Finished difference Result 920 states and 1186 transitions. [2022-11-25 23:57:59,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-25 23:57:59,323 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.0) internal successors, (80), 9 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-11-25 23:57:59,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:57:59,326 INFO L225 Difference]: With dead ends: 920 [2022-11-25 23:57:59,326 INFO L226 Difference]: Without dead ends: 690 [2022-11-25 23:57:59,327 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=158, Invalid=442, Unknown=0, NotChecked=0, Total=600 [2022-11-25 23:57:59,328 INFO L413 NwaCegarLoop]: 355 mSDtfsCounter, 1804 mSDsluCounter, 1354 mSDsCounter, 0 mSdLazyCounter, 1418 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1804 SdHoareTripleChecker+Valid, 1709 SdHoareTripleChecker+Invalid, 1429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-25 23:57:59,329 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1804 Valid, 1709 Invalid, 1429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1418 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-25 23:57:59,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2022-11-25 23:57:59,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 544. [2022-11-25 23:57:59,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 528 states have (on average 1.316287878787879) internal successors, (695), 543 states have internal predecessors, (695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:57:59,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 695 transitions. [2022-11-25 23:57:59,473 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 695 transitions. Word has length 80 [2022-11-25 23:57:59,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:57:59,474 INFO L495 AbstractCegarLoop]: Abstraction has 544 states and 695 transitions. [2022-11-25 23:57:59,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.0) internal successors, (80), 9 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:57:59,474 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 695 transitions. [2022-11-25 23:57:59,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-25 23:57:59,475 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:57:59,476 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:57:59,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-25 23:57:59,476 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 23:57:59,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:57:59,477 INFO L85 PathProgramCache]: Analyzing trace with hash 1772365797, now seen corresponding path program 1 times [2022-11-25 23:57:59,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:57:59,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106011455] [2022-11-25 23:57:59,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:57:59,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:57:59,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:57:59,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:57:59,796 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:57:59,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106011455] [2022-11-25 23:57:59,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106011455] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:57:59,796 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:57:59,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:57:59,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020495309] [2022-11-25 23:57:59,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:57:59,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:57:59,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:57:59,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:57:59,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:57:59,798 INFO L87 Difference]: Start difference. First operand 544 states and 695 transitions. Second operand has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:58:01,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:58:01,010 INFO L93 Difference]: Finished difference Result 1164 states and 1501 transitions. [2022-11-25 23:58:01,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 23:58:01,011 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-11-25 23:58:01,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:58:01,014 INFO L225 Difference]: With dead ends: 1164 [2022-11-25 23:58:01,015 INFO L226 Difference]: Without dead ends: 1029 [2022-11-25 23:58:01,015 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 [2022-11-25 23:58:01,016 INFO L413 NwaCegarLoop]: 475 mSDtfsCounter, 1207 mSDsluCounter, 1458 mSDsCounter, 0 mSdLazyCounter, 1397 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1207 SdHoareTripleChecker+Valid, 1933 SdHoareTripleChecker+Invalid, 1400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-25 23:58:01,016 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1207 Valid, 1933 Invalid, 1400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1397 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-25 23:58:01,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1029 states. [2022-11-25 23:58:01,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1029 to 544. [2022-11-25 23:58:01,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 528 states have (on average 1.3125) internal successors, (693), 543 states have internal predecessors, (693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:58:01,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 693 transitions. [2022-11-25 23:58:01,136 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 693 transitions. Word has length 80 [2022-11-25 23:58:01,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:58:01,136 INFO L495 AbstractCegarLoop]: Abstraction has 544 states and 693 transitions. [2022-11-25 23:58:01,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:58:01,137 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 693 transitions. [2022-11-25 23:58:01,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-25 23:58:01,138 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:58:01,138 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] [2022-11-25 23:58:01,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-25 23:58:01,139 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 23:58:01,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:58:01,139 INFO L85 PathProgramCache]: Analyzing trace with hash -1109843867, now seen corresponding path program 1 times [2022-11-25 23:58:01,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:58:01,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722130980] [2022-11-25 23:58:01,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:58:01,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:58:01,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:58:01,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:58:01,466 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:58:01,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722130980] [2022-11-25 23:58:01,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722130980] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:58:01,466 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:58:01,466 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:58:01,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882268858] [2022-11-25 23:58:01,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:58:01,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:58:01,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:58:01,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:58:01,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:58:01,468 INFO L87 Difference]: Start difference. First operand 544 states and 693 transitions. Second operand has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:58:02,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:58:02,717 INFO L93 Difference]: Finished difference Result 1110 states and 1421 transitions. [2022-11-25 23:58:02,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 23:58:02,718 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-11-25 23:58:02,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:58:02,721 INFO L225 Difference]: With dead ends: 1110 [2022-11-25 23:58:02,722 INFO L226 Difference]: Without dead ends: 1003 [2022-11-25 23:58:02,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2022-11-25 23:58:02,723 INFO L413 NwaCegarLoop]: 417 mSDtfsCounter, 1618 mSDsluCounter, 1195 mSDsCounter, 0 mSdLazyCounter, 1134 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1618 SdHoareTripleChecker+Valid, 1612 SdHoareTripleChecker+Invalid, 1138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-25 23:58:02,724 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1618 Valid, 1612 Invalid, 1138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1134 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-25 23:58:02,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1003 states. [2022-11-25 23:58:02,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1003 to 544. [2022-11-25 23:58:02,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 528 states have (on average 1.308712121212121) internal successors, (691), 543 states have internal predecessors, (691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:58:02,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 691 transitions. [2022-11-25 23:58:02,860 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 691 transitions. Word has length 80 [2022-11-25 23:58:02,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:58:02,860 INFO L495 AbstractCegarLoop]: Abstraction has 544 states and 691 transitions. [2022-11-25 23:58:02,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:58:02,860 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 691 transitions. [2022-11-25 23:58:02,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-25 23:58:02,862 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:58:02,862 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:58:02,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-25 23:58:02,863 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 23:58:02,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:58:02,863 INFO L85 PathProgramCache]: Analyzing trace with hash 1167764005, now seen corresponding path program 1 times [2022-11-25 23:58:02,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:58:02,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292785888] [2022-11-25 23:58:02,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:58:02,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:58:02,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:58:03,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:58:03,281 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:58:03,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292785888] [2022-11-25 23:58:03,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292785888] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:58:03,282 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:58:03,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:58:03,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547646267] [2022-11-25 23:58:03,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:58:03,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:58:03,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:58:03,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:58:03,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:58:03,284 INFO L87 Difference]: Start difference. First operand 544 states and 691 transitions. Second operand has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:58:04,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:58:04,634 INFO L93 Difference]: Finished difference Result 1103 states and 1410 transitions. [2022-11-25 23:58:04,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 23:58:04,635 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-11-25 23:58:04,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:58:04,639 INFO L225 Difference]: With dead ends: 1103 [2022-11-25 23:58:04,639 INFO L226 Difference]: Without dead ends: 1003 [2022-11-25 23:58:04,640 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 [2022-11-25 23:58:04,641 INFO L413 NwaCegarLoop]: 416 mSDtfsCounter, 1645 mSDsluCounter, 1547 mSDsCounter, 0 mSdLazyCounter, 1389 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1645 SdHoareTripleChecker+Valid, 1963 SdHoareTripleChecker+Invalid, 1393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-25 23:58:04,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1645 Valid, 1963 Invalid, 1393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1389 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-25 23:58:04,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1003 states. [2022-11-25 23:58:04,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1003 to 544. [2022-11-25 23:58:04,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 528 states have (on average 1.3068181818181819) internal successors, (690), 543 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:58:04,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 690 transitions. [2022-11-25 23:58:04,772 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 690 transitions. Word has length 80 [2022-11-25 23:58:04,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:58:04,772 INFO L495 AbstractCegarLoop]: Abstraction has 544 states and 690 transitions. [2022-11-25 23:58:04,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:58:04,772 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 690 transitions. [2022-11-25 23:58:04,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-25 23:58:04,773 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:58:04,774 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] [2022-11-25 23:58:04,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-25 23:58:04,774 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 23:58:04,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:58:04,775 INFO L85 PathProgramCache]: Analyzing trace with hash 845800069, now seen corresponding path program 1 times [2022-11-25 23:58:04,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:58:04,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725191416] [2022-11-25 23:58:04,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:58:04,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:58:04,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:58:05,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:58:05,352 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:58:05,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725191416] [2022-11-25 23:58:05,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725191416] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:58:05,352 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:58:05,352 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-25 23:58:05,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290779255] [2022-11-25 23:58:05,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:58:05,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-25 23:58:05,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:58:05,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-25 23:58:05,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-25 23:58:05,355 INFO L87 Difference]: Start difference. First operand 544 states and 690 transitions. Second operand has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 10 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:58:08,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:58:08,216 INFO L93 Difference]: Finished difference Result 1619 states and 2090 transitions. [2022-11-25 23:58:08,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-25 23:58:08,217 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 10 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-11-25 23:58:08,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:58:08,222 INFO L225 Difference]: With dead ends: 1619 [2022-11-25 23:58:08,223 INFO L226 Difference]: Without dead ends: 1495 [2022-11-25 23:58:08,226 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 [2022-11-25 23:58:08,227 INFO L413 NwaCegarLoop]: 536 mSDtfsCounter, 3559 mSDsluCounter, 1665 mSDsCounter, 0 mSdLazyCounter, 1782 mSolverCounterSat, 135 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3559 SdHoareTripleChecker+Valid, 2201 SdHoareTripleChecker+Invalid, 1917 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 1782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-25 23:58:08,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3559 Valid, 2201 Invalid, 1917 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 1782 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-25 23:58:08,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1495 states. [2022-11-25 23:58:08,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1495 to 549. [2022-11-25 23:58:08,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 533 states have (on average 1.3039399624765478) internal successors, (695), 548 states have internal predecessors, (695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:58:08,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 695 transitions. [2022-11-25 23:58:08,444 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 695 transitions. Word has length 80 [2022-11-25 23:58:08,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:58:08,444 INFO L495 AbstractCegarLoop]: Abstraction has 549 states and 695 transitions. [2022-11-25 23:58:08,445 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 10 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:58:08,445 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 695 transitions. [2022-11-25 23:58:08,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-25 23:58:08,447 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:58:08,447 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:58:08,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-25 23:58:08,448 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 23:58:08,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:58:08,448 INFO L85 PathProgramCache]: Analyzing trace with hash 319051941, now seen corresponding path program 1 times [2022-11-25 23:58:08,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:58:08,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609567577] [2022-11-25 23:58:08,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:58:08,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:58:08,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:58:08,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:58:08,755 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:58:08,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609567577] [2022-11-25 23:58:08,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609567577] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:58:08,756 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:58:08,756 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:58:08,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614226549] [2022-11-25 23:58:08,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:58:08,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:58:08,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:58:08,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:58:08,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:58:08,758 INFO L87 Difference]: Start difference. First operand 549 states and 695 transitions. Second operand has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:58:10,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:58:10,169 INFO L93 Difference]: Finished difference Result 1108 states and 1413 transitions. [2022-11-25 23:58:10,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 23:58:10,169 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-11-25 23:58:10,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:58:10,173 INFO L225 Difference]: With dead ends: 1108 [2022-11-25 23:58:10,173 INFO L226 Difference]: Without dead ends: 1008 [2022-11-25 23:58:10,174 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2022-11-25 23:58:10,174 INFO L413 NwaCegarLoop]: 423 mSDtfsCounter, 1127 mSDsluCounter, 1491 mSDsCounter, 0 mSdLazyCounter, 1401 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1127 SdHoareTripleChecker+Valid, 1914 SdHoareTripleChecker+Invalid, 1406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-25 23:58:10,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1127 Valid, 1914 Invalid, 1406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1401 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-25 23:58:10,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1008 states. [2022-11-25 23:58:10,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1008 to 549. [2022-11-25 23:58:10,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 533 states have (on average 1.302063789868668) internal successors, (694), 548 states have internal predecessors, (694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:58:10,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 694 transitions. [2022-11-25 23:58:10,348 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 694 transitions. Word has length 80 [2022-11-25 23:58:10,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:58:10,349 INFO L495 AbstractCegarLoop]: Abstraction has 549 states and 694 transitions. [2022-11-25 23:58:10,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:58:10,349 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 694 transitions. [2022-11-25 23:58:10,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-25 23:58:10,351 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:58:10,351 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:58:10,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-25 23:58:10,351 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 23:58:10,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:58:10,352 INFO L85 PathProgramCache]: Analyzing trace with hash 436282523, now seen corresponding path program 1 times [2022-11-25 23:58:10,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:58:10,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593267437] [2022-11-25 23:58:10,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:58:10,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:58:10,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:58:10,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:58:10,718 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:58:10,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593267437] [2022-11-25 23:58:10,720 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593267437] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:58:10,720 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:58:10,720 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:58:10,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910546427] [2022-11-25 23:58:10,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:58:10,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:58:10,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:58:10,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:58:10,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:58:10,722 INFO L87 Difference]: Start difference. First operand 549 states and 694 transitions. Second operand has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:58:12,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:58:12,174 INFO L93 Difference]: Finished difference Result 1070 states and 1354 transitions. [2022-11-25 23:58:12,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 23:58:12,175 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-11-25 23:58:12,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:58:12,179 INFO L225 Difference]: With dead ends: 1070 [2022-11-25 23:58:12,179 INFO L226 Difference]: Without dead ends: 983 [2022-11-25 23:58:12,180 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 [2022-11-25 23:58:12,181 INFO L413 NwaCegarLoop]: 374 mSDtfsCounter, 1675 mSDsluCounter, 1428 mSDsCounter, 0 mSdLazyCounter, 1301 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1675 SdHoareTripleChecker+Valid, 1802 SdHoareTripleChecker+Invalid, 1305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-25 23:58:12,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1675 Valid, 1802 Invalid, 1305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1301 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-25 23:58:12,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 983 states. [2022-11-25 23:58:12,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 983 to 548. [2022-11-25 23:58:12,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 532 states have (on average 1.300751879699248) internal successors, (692), 547 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:58:12,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 692 transitions. [2022-11-25 23:58:12,362 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 692 transitions. Word has length 80 [2022-11-25 23:58:12,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:58:12,363 INFO L495 AbstractCegarLoop]: Abstraction has 548 states and 692 transitions. [2022-11-25 23:58:12,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:58:12,363 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 692 transitions. [2022-11-25 23:58:12,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-25 23:58:12,365 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:58:12,365 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:58:12,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-25 23:58:12,365 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 23:58:12,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:58:12,366 INFO L85 PathProgramCache]: Analyzing trace with hash 1402771346, now seen corresponding path program 1 times [2022-11-25 23:58:12,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:58:12,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234127657] [2022-11-25 23:58:12,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:58:12,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:58:12,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:58:12,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:58:12,715 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:58:12,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234127657] [2022-11-25 23:58:12,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234127657] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:58:12,716 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:58:12,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:58:12,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997951368] [2022-11-25 23:58:12,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:58:12,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:58:12,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:58:12,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:58:12,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:58:12,718 INFO L87 Difference]: Start difference. First operand 548 states and 692 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:58:14,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:58:14,178 INFO L93 Difference]: Finished difference Result 1075 states and 1358 transitions. [2022-11-25 23:58:14,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 23:58:14,179 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-11-25 23:58:14,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:58:14,185 INFO L225 Difference]: With dead ends: 1075 [2022-11-25 23:58:14,185 INFO L226 Difference]: Without dead ends: 983 [2022-11-25 23:58:14,186 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 [2022-11-25 23:58:14,187 INFO L413 NwaCegarLoop]: 367 mSDtfsCounter, 1696 mSDsluCounter, 1414 mSDsCounter, 0 mSdLazyCounter, 1292 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1696 SdHoareTripleChecker+Valid, 1781 SdHoareTripleChecker+Invalid, 1296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-25 23:58:14,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1696 Valid, 1781 Invalid, 1296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1292 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-25 23:58:14,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 983 states. [2022-11-25 23:58:14,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 983 to 548. [2022-11-25 23:58:14,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 532 states have (on average 1.2969924812030076) internal successors, (690), 547 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:58:14,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 690 transitions. [2022-11-25 23:58:14,399 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 690 transitions. Word has length 81 [2022-11-25 23:58:14,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:58:14,399 INFO L495 AbstractCegarLoop]: Abstraction has 548 states and 690 transitions. [2022-11-25 23:58:14,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:58:14,400 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 690 transitions. [2022-11-25 23:58:14,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-25 23:58:14,401 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:58:14,401 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:58:14,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-25 23:58:14,402 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 23:58:14,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:58:14,402 INFO L85 PathProgramCache]: Analyzing trace with hash -737160558, now seen corresponding path program 1 times [2022-11-25 23:58:14,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:58:14,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344704732] [2022-11-25 23:58:14,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:58:14,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:58:14,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:58:14,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:58:14,719 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:58:14,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344704732] [2022-11-25 23:58:14,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344704732] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:58:14,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:58:14,720 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:58:14,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320696415] [2022-11-25 23:58:14,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:58:14,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:58:14,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:58:14,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:58:14,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:58:14,722 INFO L87 Difference]: Start difference. First operand 548 states and 690 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:58:16,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:58:16,205 INFO L93 Difference]: Finished difference Result 1072 states and 1353 transitions. [2022-11-25 23:58:16,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 23:58:16,206 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-11-25 23:58:16,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:58:16,210 INFO L225 Difference]: With dead ends: 1072 [2022-11-25 23:58:16,210 INFO L226 Difference]: Without dead ends: 983 [2022-11-25 23:58:16,211 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 [2022-11-25 23:58:16,212 INFO L413 NwaCegarLoop]: 374 mSDtfsCounter, 1666 mSDsluCounter, 1427 mSDsCounter, 0 mSdLazyCounter, 1295 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1666 SdHoareTripleChecker+Valid, 1801 SdHoareTripleChecker+Invalid, 1299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-25 23:58:16,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1666 Valid, 1801 Invalid, 1299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1295 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-25 23:58:16,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 983 states. [2022-11-25 23:58:16,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 983 to 548. [2022-11-25 23:58:16,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 532 states have (on average 1.2951127819548873) internal successors, (689), 547 states have internal predecessors, (689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:58:16,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 689 transitions. [2022-11-25 23:58:16,388 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 689 transitions. Word has length 81 [2022-11-25 23:58:16,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:58:16,388 INFO L495 AbstractCegarLoop]: Abstraction has 548 states and 689 transitions. [2022-11-25 23:58:16,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:58:16,389 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 689 transitions. [2022-11-25 23:58:16,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-25 23:58:16,390 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:58:16,390 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:58:16,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-25 23:58:16,391 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 23:58:16,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:58:16,391 INFO L85 PathProgramCache]: Analyzing trace with hash -1997711831, now seen corresponding path program 1 times [2022-11-25 23:58:16,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:58:16,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050902071] [2022-11-25 23:58:16,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:58:16,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:58:16,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:58:16,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:58:16,647 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:58:16,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050902071] [2022-11-25 23:58:16,647 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050902071] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:58:16,647 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:58:16,648 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:58:16,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298922078] [2022-11-25 23:58:16,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:58:16,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:58:16,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:58:16,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:58:16,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:58:16,650 INFO L87 Difference]: Start difference. First operand 548 states and 689 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:58:18,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:58:18,125 INFO L93 Difference]: Finished difference Result 1152 states and 1472 transitions. [2022-11-25 23:58:18,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 23:58:18,125 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-11-25 23:58:18,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:58:18,129 INFO L225 Difference]: With dead ends: 1152 [2022-11-25 23:58:18,129 INFO L226 Difference]: Without dead ends: 1028 [2022-11-25 23:58:18,130 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 [2022-11-25 23:58:18,131 INFO L413 NwaCegarLoop]: 484 mSDtfsCounter, 1705 mSDsluCounter, 1397 mSDsCounter, 0 mSdLazyCounter, 1333 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1705 SdHoareTripleChecker+Valid, 1881 SdHoareTripleChecker+Invalid, 1337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-25 23:58:18,131 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1705 Valid, 1881 Invalid, 1337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1333 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-25 23:58:18,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1028 states. [2022-11-25 23:58:18,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1028 to 543. [2022-11-25 23:58:18,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 527 states have (on average 1.2960151802656545) internal successors, (683), 542 states have internal predecessors, (683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:58:18,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 683 transitions. [2022-11-25 23:58:18,301 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 683 transitions. Word has length 81 [2022-11-25 23:58:18,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:58:18,301 INFO L495 AbstractCegarLoop]: Abstraction has 543 states and 683 transitions. [2022-11-25 23:58:18,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:58:18,302 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 683 transitions. [2022-11-25 23:58:18,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-25 23:58:18,303 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:58:18,303 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:58:18,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-25 23:58:18,304 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 23:58:18,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:58:18,305 INFO L85 PathProgramCache]: Analyzing trace with hash 1762485042, now seen corresponding path program 1 times [2022-11-25 23:58:18,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:58:18,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483941219] [2022-11-25 23:58:18,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:58:18,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:58:18,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:58:18,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:58:18,650 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:58:18,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483941219] [2022-11-25 23:58:18,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483941219] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:58:18,650 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:58:18,650 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:58:18,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105006553] [2022-11-25 23:58:18,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:58:18,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:58:18,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:58:18,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:58:18,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:58:18,655 INFO L87 Difference]: Start difference. First operand 543 states and 683 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:58:20,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:58:20,132 INFO L93 Difference]: Finished difference Result 1067 states and 1346 transitions. [2022-11-25 23:58:20,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 23:58:20,133 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-11-25 23:58:20,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:58:20,137 INFO L225 Difference]: With dead ends: 1067 [2022-11-25 23:58:20,137 INFO L226 Difference]: Without dead ends: 978 [2022-11-25 23:58:20,138 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 [2022-11-25 23:58:20,139 INFO L413 NwaCegarLoop]: 409 mSDtfsCounter, 1657 mSDsluCounter, 1482 mSDsCounter, 0 mSdLazyCounter, 1358 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1657 SdHoareTripleChecker+Valid, 1891 SdHoareTripleChecker+Invalid, 1361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-25 23:58:20,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1657 Valid, 1891 Invalid, 1361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1358 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-25 23:58:20,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 978 states. [2022-11-25 23:58:20,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 978 to 543. [2022-11-25 23:58:20,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 527 states have (on average 1.2941176470588236) internal successors, (682), 542 states have internal predecessors, (682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:58:20,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 682 transitions. [2022-11-25 23:58:20,362 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 682 transitions. Word has length 81 [2022-11-25 23:58:20,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:58:20,362 INFO L495 AbstractCegarLoop]: Abstraction has 543 states and 682 transitions. [2022-11-25 23:58:20,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:58:20,363 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 682 transitions. [2022-11-25 23:58:20,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-25 23:58:20,364 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:58:20,365 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:58:20,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-25 23:58:20,365 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 23:58:20,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:58:20,366 INFO L85 PathProgramCache]: Analyzing trace with hash -818292174, now seen corresponding path program 1 times [2022-11-25 23:58:20,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:58:20,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684927248] [2022-11-25 23:58:20,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:58:20,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:58:20,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:58:20,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:58:20,683 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:58:20,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684927248] [2022-11-25 23:58:20,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684927248] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:58:20,683 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:58:20,684 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:58:20,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113222688] [2022-11-25 23:58:20,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:58:20,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:58:20,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:58:20,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:58:20,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:58:20,686 INFO L87 Difference]: Start difference. First operand 543 states and 682 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:58:22,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:58:22,144 INFO L93 Difference]: Finished difference Result 1067 states and 1345 transitions. [2022-11-25 23:58:22,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 23:58:22,145 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-11-25 23:58:22,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:58:22,149 INFO L225 Difference]: With dead ends: 1067 [2022-11-25 23:58:22,149 INFO L226 Difference]: Without dead ends: 978 [2022-11-25 23:58:22,149 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 [2022-11-25 23:58:22,150 INFO L413 NwaCegarLoop]: 378 mSDtfsCounter, 1908 mSDsluCounter, 1125 mSDsCounter, 0 mSdLazyCounter, 1144 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1908 SdHoareTripleChecker+Valid, 1503 SdHoareTripleChecker+Invalid, 1148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-25 23:58:22,150 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1908 Valid, 1503 Invalid, 1148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1144 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-25 23:58:22,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 978 states. [2022-11-25 23:58:22,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 978 to 543. [2022-11-25 23:58:22,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 527 states have (on average 1.2922201138519924) internal successors, (681), 542 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:58:22,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 681 transitions. [2022-11-25 23:58:22,303 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 681 transitions. Word has length 81 [2022-11-25 23:58:22,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:58:22,303 INFO L495 AbstractCegarLoop]: Abstraction has 543 states and 681 transitions. [2022-11-25 23:58:22,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:58:22,304 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 681 transitions. [2022-11-25 23:58:22,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-25 23:58:22,305 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:58:22,305 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] [2022-11-25 23:58:22,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-25 23:58:22,306 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 23:58:22,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:58:22,306 INFO L85 PathProgramCache]: Analyzing trace with hash -1416899414, now seen corresponding path program 1 times [2022-11-25 23:58:22,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:58:22,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172864410] [2022-11-25 23:58:22,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:58:22,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:58:22,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:58:22,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:58:22,637 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:58:22,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172864410] [2022-11-25 23:58:22,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172864410] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:58:22,637 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:58:22,637 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:58:22,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247489995] [2022-11-25 23:58:22,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:58:22,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:58:22,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:58:22,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:58:22,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:58:22,639 INFO L87 Difference]: Start difference. First operand 543 states and 681 transitions. Second operand has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:58:24,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:58:24,147 INFO L93 Difference]: Finished difference Result 984 states and 1231 transitions. [2022-11-25 23:58:24,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 23:58:24,150 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2022-11-25 23:58:24,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:58:24,154 INFO L225 Difference]: With dead ends: 984 [2022-11-25 23:58:24,154 INFO L226 Difference]: Without dead ends: 978 [2022-11-25 23:58:24,154 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 [2022-11-25 23:58:24,155 INFO L413 NwaCegarLoop]: 378 mSDtfsCounter, 1657 mSDsluCounter, 1439 mSDsCounter, 0 mSdLazyCounter, 1273 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1657 SdHoareTripleChecker+Valid, 1817 SdHoareTripleChecker+Invalid, 1277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-25 23:58:24,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1657 Valid, 1817 Invalid, 1277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1273 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-25 23:58:24,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 978 states. [2022-11-25 23:58:24,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 978 to 543. [2022-11-25 23:58:24,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 527 states have (on average 1.28842504743833) internal successors, (679), 542 states have internal predecessors, (679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:58:24,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 679 transitions. [2022-11-25 23:58:24,300 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 679 transitions. Word has length 82 [2022-11-25 23:58:24,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:58:24,300 INFO L495 AbstractCegarLoop]: Abstraction has 543 states and 679 transitions. [2022-11-25 23:58:24,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:58:24,300 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 679 transitions. [2022-11-25 23:58:24,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-25 23:58:24,302 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:58:24,302 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:58:24,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-25 23:58:24,303 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 23:58:24,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:58:24,303 INFO L85 PathProgramCache]: Analyzing trace with hash 110550506, now seen corresponding path program 1 times [2022-11-25 23:58:24,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:58:24,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034742228] [2022-11-25 23:58:24,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:58:24,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:58:24,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:58:24,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:58:24,585 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:58:24,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034742228] [2022-11-25 23:58:24,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034742228] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:58:24,586 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:58:24,586 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:58:24,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285419624] [2022-11-25 23:58:24,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:58:24,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:58:24,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:58:24,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:58:24,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:58:24,589 INFO L87 Difference]: Start difference. First operand 543 states and 679 transitions. Second operand has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:58:26,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:58:26,126 INFO L93 Difference]: Finished difference Result 1021 states and 1283 transitions. [2022-11-25 23:58:26,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 23:58:26,126 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2022-11-25 23:58:26,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:58:26,128 INFO L225 Difference]: With dead ends: 1021 [2022-11-25 23:58:26,128 INFO L226 Difference]: Without dead ends: 1002 [2022-11-25 23:58:26,129 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2022-11-25 23:58:26,129 INFO L413 NwaCegarLoop]: 465 mSDtfsCounter, 1109 mSDsluCounter, 1452 mSDsCounter, 0 mSdLazyCounter, 1318 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1109 SdHoareTripleChecker+Valid, 1917 SdHoareTripleChecker+Invalid, 1322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-25 23:58:26,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1109 Valid, 1917 Invalid, 1322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1318 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-25 23:58:26,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1002 states. [2022-11-25 23:58:26,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1002 to 543. [2022-11-25 23:58:26,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 527 states have (on average 1.284629981024668) internal successors, (677), 542 states have internal predecessors, (677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:58:26,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 677 transitions. [2022-11-25 23:58:26,295 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 677 transitions. Word has length 82 [2022-11-25 23:58:26,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:58:26,295 INFO L495 AbstractCegarLoop]: Abstraction has 543 states and 677 transitions. [2022-11-25 23:58:26,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:58:26,296 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 677 transitions. [2022-11-25 23:58:26,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-25 23:58:26,297 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:58:26,297 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:58:26,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-25 23:58:26,298 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 23:58:26,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:58:26,298 INFO L85 PathProgramCache]: Analyzing trace with hash -534325398, now seen corresponding path program 1 times [2022-11-25 23:58:26,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:58:26,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537926321] [2022-11-25 23:58:26,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:58:26,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:58:26,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:58:26,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:58:26,565 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:58:26,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537926321] [2022-11-25 23:58:26,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537926321] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:58:26,566 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:58:26,566 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:58:26,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8361009] [2022-11-25 23:58:26,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:58:26,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:58:26,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:58:26,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:58:26,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:58:26,568 INFO L87 Difference]: Start difference. First operand 543 states and 677 transitions. Second operand has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:58:28,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:58:28,080 INFO L93 Difference]: Finished difference Result 984 states and 1227 transitions. [2022-11-25 23:58:28,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 23:58:28,081 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2022-11-25 23:58:28,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:58:28,085 INFO L225 Difference]: With dead ends: 984 [2022-11-25 23:58:28,085 INFO L226 Difference]: Without dead ends: 978 [2022-11-25 23:58:28,086 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 [2022-11-25 23:58:28,087 INFO L413 NwaCegarLoop]: 392 mSDtfsCounter, 1849 mSDsluCounter, 1164 mSDsCounter, 0 mSdLazyCounter, 1151 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1849 SdHoareTripleChecker+Valid, 1556 SdHoareTripleChecker+Invalid, 1155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-25 23:58:28,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1849 Valid, 1556 Invalid, 1155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1151 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-25 23:58:28,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 978 states. [2022-11-25 23:58:28,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 978 to 543. [2022-11-25 23:58:28,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 527 states have (on average 1.2808349146110056) internal successors, (675), 542 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:58:28,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 675 transitions. [2022-11-25 23:58:28,315 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 675 transitions. Word has length 82 [2022-11-25 23:58:28,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:58:28,315 INFO L495 AbstractCegarLoop]: Abstraction has 543 states and 675 transitions. [2022-11-25 23:58:28,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:58:28,315 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 675 transitions. [2022-11-25 23:58:28,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-25 23:58:28,317 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:58:28,317 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:58:28,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-25 23:58:28,317 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 23:58:28,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:58:28,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1378881558, now seen corresponding path program 1 times [2022-11-25 23:58:28,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:58:28,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172751401] [2022-11-25 23:58:28,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:58:28,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:58:28,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:58:28,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:58:28,605 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:58:28,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172751401] [2022-11-25 23:58:28,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172751401] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:58:28,605 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:58:28,605 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:58:28,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241373833] [2022-11-25 23:58:28,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:58:28,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:58:28,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:58:28,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:58:28,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:58:28,607 INFO L87 Difference]: Start difference. First operand 543 states and 675 transitions. Second operand has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:58:30,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:58:30,215 INFO L93 Difference]: Finished difference Result 1074 states and 1343 transitions. [2022-11-25 23:58:30,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 23:58:30,216 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2022-11-25 23:58:30,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:58:30,220 INFO L225 Difference]: With dead ends: 1074 [2022-11-25 23:58:30,220 INFO L226 Difference]: Without dead ends: 978 [2022-11-25 23:58:30,221 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 [2022-11-25 23:58:30,222 INFO L413 NwaCegarLoop]: 399 mSDtfsCounter, 1634 mSDsluCounter, 1483 mSDsCounter, 0 mSdLazyCounter, 1275 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1634 SdHoareTripleChecker+Valid, 1882 SdHoareTripleChecker+Invalid, 1279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-25 23:58:30,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1634 Valid, 1882 Invalid, 1279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1275 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-25 23:58:30,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 978 states. [2022-11-25 23:58:30,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 978 to 543. [2022-11-25 23:58:30,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 527 states have (on average 1.2770398481973435) internal successors, (673), 542 states have internal predecessors, (673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:58:30,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 673 transitions. [2022-11-25 23:58:30,448 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 673 transitions. Word has length 82 [2022-11-25 23:58:30,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:58:30,448 INFO L495 AbstractCegarLoop]: Abstraction has 543 states and 673 transitions. [2022-11-25 23:58:30,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:58:30,449 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 673 transitions. [2022-11-25 23:58:30,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-25 23:58:30,450 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:58:30,450 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:58:30,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-25 23:58:30,451 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 23:58:30,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:58:30,451 INFO L85 PathProgramCache]: Analyzing trace with hash 148568362, now seen corresponding path program 1 times [2022-11-25 23:58:30,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:58:30,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564056056] [2022-11-25 23:58:30,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:58:30,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:58:30,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:58:30,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:58:30,708 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:58:30,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564056056] [2022-11-25 23:58:30,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564056056] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:58:30,709 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:58:30,709 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:58:30,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488616585] [2022-11-25 23:58:30,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:58:30,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:58:30,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:58:30,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:58:30,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:58:30,712 INFO L87 Difference]: Start difference. First operand 543 states and 673 transitions. Second operand has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:58:32,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:58:32,186 INFO L93 Difference]: Finished difference Result 1115 states and 1402 transitions. [2022-11-25 23:58:32,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 23:58:32,187 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2022-11-25 23:58:32,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:58:32,190 INFO L225 Difference]: With dead ends: 1115 [2022-11-25 23:58:32,190 INFO L226 Difference]: Without dead ends: 1002 [2022-11-25 23:58:32,190 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2022-11-25 23:58:32,191 INFO L413 NwaCegarLoop]: 469 mSDtfsCounter, 1567 mSDsluCounter, 1303 mSDsCounter, 0 mSdLazyCounter, 1119 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1567 SdHoareTripleChecker+Valid, 1772 SdHoareTripleChecker+Invalid, 1123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-25 23:58:32,191 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1567 Valid, 1772 Invalid, 1123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1119 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-25 23:58:32,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1002 states. [2022-11-25 23:58:32,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1002 to 543. [2022-11-25 23:58:32,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 527 states have (on average 1.2732447817836812) internal successors, (671), 542 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:58:32,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 671 transitions. [2022-11-25 23:58:32,359 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 671 transitions. Word has length 82 [2022-11-25 23:58:32,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:58:32,360 INFO L495 AbstractCegarLoop]: Abstraction has 543 states and 671 transitions. [2022-11-25 23:58:32,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:58:32,360 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 671 transitions. [2022-11-25 23:58:32,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-25 23:58:32,361 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:58:32,361 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:58:32,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-25 23:58:32,362 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 23:58:32,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:58:32,362 INFO L85 PathProgramCache]: Analyzing trace with hash -1321164118, now seen corresponding path program 1 times [2022-11-25 23:58:32,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:58:32,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525966132] [2022-11-25 23:58:32,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:58:32,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:58:32,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:58:32,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:58:32,843 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:58:32,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525966132] [2022-11-25 23:58:32,843 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525966132] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:58:32,843 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:58:32,843 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-25 23:58:32,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967293105] [2022-11-25 23:58:32,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:58:32,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-25 23:58:32,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:58:32,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-25 23:58:32,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-25 23:58:32,844 INFO L87 Difference]: Start difference. First operand 543 states and 671 transitions. Second operand has 11 states, 11 states have (on average 7.454545454545454) internal successors, (82), 10 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:58:36,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:58:36,120 INFO L93 Difference]: Finished difference Result 1692 states and 2160 transitions. [2022-11-25 23:58:36,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-25 23:58:36,120 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.454545454545454) internal successors, (82), 10 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2022-11-25 23:58:36,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:58:36,123 INFO L225 Difference]: With dead ends: 1692 [2022-11-25 23:58:36,123 INFO L226 Difference]: Without dead ends: 1535 [2022-11-25 23:58:36,125 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2022-11-25 23:58:36,126 INFO L413 NwaCegarLoop]: 547 mSDtfsCounter, 3270 mSDsluCounter, 1950 mSDsCounter, 0 mSdLazyCounter, 1963 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3270 SdHoareTripleChecker+Valid, 2497 SdHoareTripleChecker+Invalid, 2086 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 1963 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-25 23:58:36,126 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3270 Valid, 2497 Invalid, 2086 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 1963 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-25 23:58:36,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1535 states. [2022-11-25 23:58:36,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1535 to 553. [2022-11-25 23:58:36,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 537 states have (on average 1.2681564245810055) internal successors, (681), 552 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:58:36,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 681 transitions. [2022-11-25 23:58:36,324 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 681 transitions. Word has length 82 [2022-11-25 23:58:36,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:58:36,324 INFO L495 AbstractCegarLoop]: Abstraction has 553 states and 681 transitions. [2022-11-25 23:58:36,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.454545454545454) internal successors, (82), 10 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:58:36,325 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 681 transitions. [2022-11-25 23:58:36,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-25 23:58:36,326 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:58:36,326 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:58:36,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-25 23:58:36,327 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 23:58:36,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:58:36,328 INFO L85 PathProgramCache]: Analyzing trace with hash -378154710, now seen corresponding path program 1 times [2022-11-25 23:58:36,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:58:36,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636697958] [2022-11-25 23:58:36,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:58:36,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:58:36,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:58:36,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:58:36,626 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:58:36,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636697958] [2022-11-25 23:58:36,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636697958] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:58:36,626 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:58:36,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:58:36,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978135188] [2022-11-25 23:58:36,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:58:36,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:58:36,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:58:36,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:58:36,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:58:36,628 INFO L87 Difference]: Start difference. First operand 553 states and 681 transitions. Second operand has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:58:38,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:58:38,283 INFO L93 Difference]: Finished difference Result 1080 states and 1344 transitions. [2022-11-25 23:58:38,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 23:58:38,284 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2022-11-25 23:58:38,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:58:38,287 INFO L225 Difference]: With dead ends: 1080 [2022-11-25 23:58:38,288 INFO L226 Difference]: Without dead ends: 988 [2022-11-25 23:58:38,288 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 [2022-11-25 23:58:38,289 INFO L413 NwaCegarLoop]: 418 mSDtfsCounter, 1624 mSDsluCounter, 1527 mSDsCounter, 0 mSdLazyCounter, 1290 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1624 SdHoareTripleChecker+Valid, 1945 SdHoareTripleChecker+Invalid, 1294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-25 23:58:38,289 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1624 Valid, 1945 Invalid, 1294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1290 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-25 23:58:38,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 988 states. [2022-11-25 23:58:38,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 988 to 553. [2022-11-25 23:58:38,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 537 states have (on average 1.266294227188082) internal successors, (680), 552 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:58:38,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 680 transitions. [2022-11-25 23:58:38,469 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 680 transitions. Word has length 82 [2022-11-25 23:58:38,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:58:38,470 INFO L495 AbstractCegarLoop]: Abstraction has 553 states and 680 transitions. [2022-11-25 23:58:38,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:58:38,470 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 680 transitions. [2022-11-25 23:58:38,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-25 23:58:38,471 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:58:38,471 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:58:38,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-25 23:58:38,472 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 23:58:38,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:58:38,472 INFO L85 PathProgramCache]: Analyzing trace with hash 637597674, now seen corresponding path program 1 times [2022-11-25 23:58:38,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:58:38,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480860885] [2022-11-25 23:58:38,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:58:38,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:58:38,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:58:38,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:58:38,738 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:58:38,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480860885] [2022-11-25 23:58:38,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480860885] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:58:38,738 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:58:38,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:58:38,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867441758] [2022-11-25 23:58:38,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:58:38,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:58:38,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:58:38,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:58:38,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:58:38,740 INFO L87 Difference]: Start difference. First operand 553 states and 680 transitions. Second operand has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:58:40,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:58:40,449 INFO L93 Difference]: Finished difference Result 1117 states and 1396 transitions. [2022-11-25 23:58:40,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 23:58:40,449 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2022-11-25 23:58:40,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:58:40,453 INFO L225 Difference]: With dead ends: 1117 [2022-11-25 23:58:40,453 INFO L226 Difference]: Without dead ends: 1012 [2022-11-25 23:58:40,454 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2022-11-25 23:58:40,454 INFO L413 NwaCegarLoop]: 468 mSDtfsCounter, 1101 mSDsluCounter, 1643 mSDsCounter, 0 mSdLazyCounter, 1417 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1101 SdHoareTripleChecker+Valid, 2111 SdHoareTripleChecker+Invalid, 1421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-25 23:58:40,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1101 Valid, 2111 Invalid, 1421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1417 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-25 23:58:40,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1012 states. [2022-11-25 23:58:40,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1012 to 553. [2022-11-25 23:58:40,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 537 states have (on average 1.2644320297951583) internal successors, (679), 552 states have internal predecessors, (679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:58:40,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 679 transitions. [2022-11-25 23:58:40,645 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 679 transitions. Word has length 82 [2022-11-25 23:58:40,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:58:40,645 INFO L495 AbstractCegarLoop]: Abstraction has 553 states and 679 transitions. [2022-11-25 23:58:40,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:58:40,646 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 679 transitions. [2022-11-25 23:58:40,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-25 23:58:40,647 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:58:40,647 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:58:40,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-25 23:58:40,648 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 23:58:40,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:58:40,648 INFO L85 PathProgramCache]: Analyzing trace with hash -586374390, now seen corresponding path program 1 times [2022-11-25 23:58:40,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:58:40,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809242073] [2022-11-25 23:58:40,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:58:40,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:58:40,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:58:41,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:58:41,102 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:58:41,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809242073] [2022-11-25 23:58:41,102 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809242073] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:58:41,102 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:58:41,103 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-25 23:58:41,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107549] [2022-11-25 23:58:41,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:58:41,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-25 23:58:41,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:58:41,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-25 23:58:41,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-25 23:58:41,105 INFO L87 Difference]: Start difference. First operand 553 states and 679 transitions. Second operand has 11 states, 11 states have (on average 7.454545454545454) internal successors, (82), 10 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:58:44,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:58:44,185 INFO L93 Difference]: Finished difference Result 1521 states and 1925 transitions. [2022-11-25 23:58:44,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-25 23:58:44,186 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.454545454545454) internal successors, (82), 10 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2022-11-25 23:58:44,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:58:44,189 INFO L225 Difference]: With dead ends: 1521 [2022-11-25 23:58:44,189 INFO L226 Difference]: Without dead ends: 1429 [2022-11-25 23:58:44,190 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2022-11-25 23:58:44,191 INFO L413 NwaCegarLoop]: 425 mSDtfsCounter, 3336 mSDsluCounter, 1371 mSDsCounter, 0 mSdLazyCounter, 1345 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3336 SdHoareTripleChecker+Valid, 1796 SdHoareTripleChecker+Invalid, 1475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 1345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:58:44,191 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3336 Valid, 1796 Invalid, 1475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 1345 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-25 23:58:44,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1429 states. [2022-11-25 23:58:44,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1429 to 558. [2022-11-25 23:58:44,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 558 states, 542 states have (on average 1.2619926199261993) internal successors, (684), 557 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:58:44,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 684 transitions. [2022-11-25 23:58:44,425 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 684 transitions. Word has length 82 [2022-11-25 23:58:44,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:58:44,425 INFO L495 AbstractCegarLoop]: Abstraction has 558 states and 684 transitions. [2022-11-25 23:58:44,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.454545454545454) internal successors, (82), 10 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:58:44,425 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 684 transitions. [2022-11-25 23:58:44,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-25 23:58:44,426 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:58:44,427 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:58:44,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-25 23:58:44,427 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 23:58:44,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:58:44,427 INFO L85 PathProgramCache]: Analyzing trace with hash -1027878550, now seen corresponding path program 1 times [2022-11-25 23:58:44,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:58:44,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229028785] [2022-11-25 23:58:44,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:58:44,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:58:44,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:58:44,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:58:44,671 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:58:44,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229028785] [2022-11-25 23:58:44,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229028785] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:58:44,672 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:58:44,672 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:58:44,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137934351] [2022-11-25 23:58:44,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:58:44,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:58:44,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:58:44,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:58:44,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:58:44,674 INFO L87 Difference]: Start difference. First operand 558 states and 684 transitions. Second operand has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:58:46,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:58:46,439 INFO L93 Difference]: Finished difference Result 994 states and 1226 transitions. [2022-11-25 23:58:46,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 23:58:46,439 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2022-11-25 23:58:46,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:58:46,441 INFO L225 Difference]: With dead ends: 994 [2022-11-25 23:58:46,441 INFO L226 Difference]: Without dead ends: 988 [2022-11-25 23:58:46,441 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 [2022-11-25 23:58:46,442 INFO L413 NwaCegarLoop]: 417 mSDtfsCounter, 1746 mSDsluCounter, 1241 mSDsCounter, 0 mSdLazyCounter, 1166 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1746 SdHoareTripleChecker+Valid, 1658 SdHoareTripleChecker+Invalid, 1170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-25 23:58:46,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1746 Valid, 1658 Invalid, 1170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1166 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-25 23:58:46,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 988 states. [2022-11-25 23:58:46,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 988 to 558. [2022-11-25 23:58:46,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 558 states, 542 states have (on average 1.2601476014760147) internal successors, (683), 557 states have internal predecessors, (683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:58:46,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 683 transitions. [2022-11-25 23:58:46,651 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 683 transitions. Word has length 82 [2022-11-25 23:58:46,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:58:46,652 INFO L495 AbstractCegarLoop]: Abstraction has 558 states and 683 transitions. [2022-11-25 23:58:46,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:58:46,652 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 683 transitions. [2022-11-25 23:58:46,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-25 23:58:46,654 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:58:46,654 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:58:46,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-25 23:58:46,654 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 23:58:46,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:58:46,655 INFO L85 PathProgramCache]: Analyzing trace with hash -1377145907, now seen corresponding path program 1 times [2022-11-25 23:58:46,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:58:46,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337005439] [2022-11-25 23:58:46,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:58:46,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:58:46,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:58:47,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:58:47,284 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:58:47,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337005439] [2022-11-25 23:58:47,284 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337005439] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:58:47,284 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:58:47,284 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-25 23:58:47,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154287814] [2022-11-25 23:58:47,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:58:47,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 23:58:47,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:58:47,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 23:58:47,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-25 23:58:47,285 INFO L87 Difference]: Start difference. First operand 558 states and 683 transitions. Second operand has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 11 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:58:48,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:58:48,584 INFO L93 Difference]: Finished difference Result 954 states and 1198 transitions. [2022-11-25 23:58:48,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 23:58:48,584 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 11 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2022-11-25 23:58:48,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:58:48,586 INFO L225 Difference]: With dead ends: 954 [2022-11-25 23:58:48,586 INFO L226 Difference]: Without dead ends: 762 [2022-11-25 23:58:48,587 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=99, Invalid=321, Unknown=0, NotChecked=0, Total=420 [2022-11-25 23:58:48,588 INFO L413 NwaCegarLoop]: 463 mSDtfsCounter, 2105 mSDsluCounter, 2359 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2105 SdHoareTripleChecker+Valid, 2822 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 23:58:48,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2105 Valid, 2822 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 23:58:48,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 762 states. [2022-11-25 23:58:48,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 762 to 452. [2022-11-25 23:58:48,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 452 states, 440 states have (on average 1.2545454545454546) internal successors, (552), 451 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:58:48,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 552 transitions. [2022-11-25 23:58:48,782 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 552 transitions. Word has length 83 [2022-11-25 23:58:48,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:58:48,783 INFO L495 AbstractCegarLoop]: Abstraction has 452 states and 552 transitions. [2022-11-25 23:58:48,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 11 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:58:48,783 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 552 transitions. [2022-11-25 23:58:48,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-25 23:58:48,784 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:58:48,784 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:58:48,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-11-25 23:58:48,784 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 23:58:48,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:58:48,785 INFO L85 PathProgramCache]: Analyzing trace with hash -1042213600, now seen corresponding path program 1 times [2022-11-25 23:58:48,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:58:48,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093277279] [2022-11-25 23:58:48,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:58:48,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:58:48,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:58:49,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:58:49,064 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:58:49,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093277279] [2022-11-25 23:58:49,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093277279] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:58:49,064 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:58:49,064 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:58:49,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376914011] [2022-11-25 23:58:49,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:58:49,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:58:49,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:58:49,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:58:49,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:58:49,066 INFO L87 Difference]: Start difference. First operand 452 states and 552 transitions. Second operand has 8 states, 8 states have (on average 10.375) internal successors, (83), 7 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:58:50,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:58:50,832 INFO L93 Difference]: Finished difference Result 1089 states and 1369 transitions. [2022-11-25 23:58:50,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 23:58:50,832 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 7 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2022-11-25 23:58:50,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:58:50,833 INFO L225 Difference]: With dead ends: 1089 [2022-11-25 23:58:50,833 INFO L226 Difference]: Without dead ends: 932 [2022-11-25 23:58:50,834 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 [2022-11-25 23:58:50,834 INFO L413 NwaCegarLoop]: 422 mSDtfsCounter, 1027 mSDsluCounter, 1195 mSDsCounter, 0 mSdLazyCounter, 1079 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1027 SdHoareTripleChecker+Valid, 1617 SdHoareTripleChecker+Invalid, 1083 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1079 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-25 23:58:50,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1027 Valid, 1617 Invalid, 1083 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1079 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-25 23:58:50,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 932 states. [2022-11-25 23:58:51,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 932 to 442. [2022-11-25 23:58:51,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 430 states have (on average 1.255813953488372) internal successors, (540), 441 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:58:51,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 540 transitions. [2022-11-25 23:58:51,034 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 540 transitions. Word has length 83 [2022-11-25 23:58:51,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:58:51,034 INFO L495 AbstractCegarLoop]: Abstraction has 442 states and 540 transitions. [2022-11-25 23:58:51,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 7 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:58:51,034 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 540 transitions. [2022-11-25 23:58:51,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-25 23:58:51,035 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:58:51,035 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:58:51,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-11-25 23:58:51,036 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 23:58:51,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:58:51,036 INFO L85 PathProgramCache]: Analyzing trace with hash -199769875, now seen corresponding path program 1 times [2022-11-25 23:58:51,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:58:51,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329174249] [2022-11-25 23:58:51,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:58:51,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:58:51,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:58:51,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:58:51,637 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:58:51,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329174249] [2022-11-25 23:58:51,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329174249] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:58:51,637 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:58:51,638 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-25 23:58:51,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233220843] [2022-11-25 23:58:51,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:58:51,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 23:58:51,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:58:51,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 23:58:51,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-25 23:58:51,639 INFO L87 Difference]: Start difference. First operand 442 states and 540 transitions. Second operand has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 11 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:58:53,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:58:53,933 INFO L93 Difference]: Finished difference Result 1091 states and 1376 transitions. [2022-11-25 23:58:53,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 23:58:53,933 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 11 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2022-11-25 23:58:53,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:58:53,935 INFO L225 Difference]: With dead ends: 1091 [2022-11-25 23:58:53,935 INFO L226 Difference]: Without dead ends: 1003 [2022-11-25 23:58:53,935 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 [2022-11-25 23:58:53,936 INFO L413 NwaCegarLoop]: 500 mSDtfsCounter, 2238 mSDsluCounter, 2490 mSDsCounter, 0 mSdLazyCounter, 1039 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2238 SdHoareTripleChecker+Valid, 2990 SdHoareTripleChecker+Invalid, 1039 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1039 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-25 23:58:53,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2238 Valid, 2990 Invalid, 1039 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1039 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-25 23:58:53,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1003 states. [2022-11-25 23:58:54,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1003 to 440. [2022-11-25 23:58:54,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 428 states have (on average 1.2523364485981308) internal successors, (536), 439 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:58:54,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 536 transitions. [2022-11-25 23:58:54,198 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 536 transitions. Word has length 83 [2022-11-25 23:58:54,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:58:54,199 INFO L495 AbstractCegarLoop]: Abstraction has 440 states and 536 transitions. [2022-11-25 23:58:54,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 11 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:58:54,199 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 536 transitions. [2022-11-25 23:58:54,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-25 23:58:54,200 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:58:54,200 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:58:54,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-11-25 23:58:54,201 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 23:58:54,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:58:54,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1097921229, now seen corresponding path program 1 times [2022-11-25 23:58:54,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:58:54,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135876598] [2022-11-25 23:58:54,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:58:54,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:58:54,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:58:54,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:58:54,809 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:58:54,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135876598] [2022-11-25 23:58:54,810 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135876598] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:58:54,810 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:58:54,810 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-25 23:58:54,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538435938] [2022-11-25 23:58:54,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:58:54,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 23:58:54,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:58:54,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 23:58:54,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-25 23:58:54,812 INFO L87 Difference]: Start difference. First operand 440 states and 536 transitions. Second operand has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 11 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:58:56,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:58:56,922 INFO L93 Difference]: Finished difference Result 1084 states and 1366 transitions. [2022-11-25 23:58:56,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 23:58:56,922 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 11 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2022-11-25 23:58:56,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:58:56,924 INFO L225 Difference]: With dead ends: 1084 [2022-11-25 23:58:56,924 INFO L226 Difference]: Without dead ends: 997 [2022-11-25 23:58:56,925 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 [2022-11-25 23:58:56,925 INFO L413 NwaCegarLoop]: 535 mSDtfsCounter, 2240 mSDsluCounter, 2251 mSDsCounter, 0 mSdLazyCounter, 910 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2240 SdHoareTripleChecker+Valid, 2786 SdHoareTripleChecker+Invalid, 910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 910 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-25 23:58:56,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2240 Valid, 2786 Invalid, 910 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 910 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-25 23:58:56,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 997 states. [2022-11-25 23:58:57,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 997 to 439. [2022-11-25 23:58:57,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 427 states have (on average 1.2505854800936769) internal successors, (534), 438 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:58:57,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 534 transitions. [2022-11-25 23:58:57,151 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 534 transitions. Word has length 83 [2022-11-25 23:58:57,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:58:57,152 INFO L495 AbstractCegarLoop]: Abstraction has 439 states and 534 transitions. [2022-11-25 23:58:57,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 11 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:58:57,152 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 534 transitions. [2022-11-25 23:58:57,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-25 23:58:57,153 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:58:57,153 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] [2022-11-25 23:58:57,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-11-25 23:58:57,153 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 23:58:57,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:58:57,154 INFO L85 PathProgramCache]: Analyzing trace with hash -1397509459, now seen corresponding path program 1 times [2022-11-25 23:58:57,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:58:57,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282652694] [2022-11-25 23:58:57,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:58:57,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:58:57,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:58:57,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:58:57,751 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:58:57,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282652694] [2022-11-25 23:58:57,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282652694] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:58:57,751 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:58:57,752 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-25 23:58:57,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192626173] [2022-11-25 23:58:57,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:58:57,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-25 23:58:57,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:58:57,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-25 23:58:57,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-25 23:58:57,754 INFO L87 Difference]: Start difference. First operand 439 states and 534 transitions. Second operand has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 12 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:59:00,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:59:00,852 INFO L93 Difference]: Finished difference Result 1740 states and 2205 transitions. [2022-11-25 23:59:00,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-25 23:59:00,853 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 12 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2022-11-25 23:59:00,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:59:00,855 INFO L225 Difference]: With dead ends: 1740 [2022-11-25 23:59:00,855 INFO L226 Difference]: Without dead ends: 1622 [2022-11-25 23:59:00,856 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 [2022-11-25 23:59:00,856 INFO L413 NwaCegarLoop]: 1026 mSDtfsCounter, 1957 mSDsluCounter, 6493 mSDsCounter, 0 mSdLazyCounter, 1042 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1957 SdHoareTripleChecker+Valid, 7519 SdHoareTripleChecker+Invalid, 1042 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1042 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-25 23:59:00,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1957 Valid, 7519 Invalid, 1042 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1042 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-25 23:59:00,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1622 states. [2022-11-25 23:59:01,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1622 to 407. [2022-11-25 23:59:01,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 396 states have (on average 1.2474747474747474) internal successors, (494), 406 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:59:01,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 494 transitions. [2022-11-25 23:59:01,088 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 494 transitions. Word has length 83 [2022-11-25 23:59:01,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:59:01,088 INFO L495 AbstractCegarLoop]: Abstraction has 407 states and 494 transitions. [2022-11-25 23:59:01,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 12 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:59:01,089 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 494 transitions. [2022-11-25 23:59:01,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-25 23:59:01,089 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:59:01,090 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:59:01,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-11-25 23:59:01,090 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 23:59:01,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:59:01,090 INFO L85 PathProgramCache]: Analyzing trace with hash 2096908269, now seen corresponding path program 1 times [2022-11-25 23:59:01,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:59:01,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767250454] [2022-11-25 23:59:01,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:59:01,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:59:01,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:59:01,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:59:01,616 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:59:01,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767250454] [2022-11-25 23:59:01,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767250454] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:59:01,617 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:59:01,617 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-25 23:59:01,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753636749] [2022-11-25 23:59:01,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:59:01,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 23:59:01,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:59:01,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 23:59:01,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-25 23:59:01,619 INFO L87 Difference]: Start difference. First operand 407 states and 494 transitions. Second operand has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 11 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:59:03,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:59:03,034 INFO L93 Difference]: Finished difference Result 714 states and 889 transitions. [2022-11-25 23:59:03,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 23:59:03,035 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 11 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2022-11-25 23:59:03,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:59:03,036 INFO L225 Difference]: With dead ends: 714 [2022-11-25 23:59:03,036 INFO L226 Difference]: Without dead ends: 573 [2022-11-25 23:59:03,036 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 [2022-11-25 23:59:03,037 INFO L413 NwaCegarLoop]: 485 mSDtfsCounter, 1249 mSDsluCounter, 1766 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1249 SdHoareTripleChecker+Valid, 2251 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 23:59:03,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1249 Valid, 2251 Invalid, 341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 23:59:03,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2022-11-25 23:59:03,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 352. [2022-11-25 23:59:03,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 342 states have (on average 1.2426900584795322) internal successors, (425), 351 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:59:03,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 425 transitions. [2022-11-25 23:59:03,268 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 425 transitions. Word has length 83 [2022-11-25 23:59:03,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:59:03,268 INFO L495 AbstractCegarLoop]: Abstraction has 352 states and 425 transitions. [2022-11-25 23:59:03,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 11 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:59:03,269 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 425 transitions. [2022-11-25 23:59:03,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-25 23:59:03,269 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:59:03,270 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:59:03,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-11-25 23:59:03,270 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 23:59:03,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:59:03,271 INFO L85 PathProgramCache]: Analyzing trace with hash 2131684943, now seen corresponding path program 1 times [2022-11-25 23:59:03,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:59:03,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909992126] [2022-11-25 23:59:03,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:59:03,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:59:03,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:59:03,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:59:03,863 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:59:03,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909992126] [2022-11-25 23:59:03,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909992126] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:59:03,863 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:59:03,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-25 23:59:03,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078428990] [2022-11-25 23:59:03,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:59:03,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 23:59:03,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:59:03,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 23:59:03,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-25 23:59:03,865 INFO L87 Difference]: Start difference. First operand 352 states and 425 transitions. Second operand has 12 states, 12 states have (on average 7.0) internal successors, (84), 11 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:59:05,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:59:05,172 INFO L93 Difference]: Finished difference Result 618 states and 759 transitions. [2022-11-25 23:59:05,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 23:59:05,173 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.0) internal successors, (84), 11 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2022-11-25 23:59:05,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:59:05,174 INFO L225 Difference]: With dead ends: 618 [2022-11-25 23:59:05,174 INFO L226 Difference]: Without dead ends: 526 [2022-11-25 23:59:05,174 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2022-11-25 23:59:05,175 INFO L413 NwaCegarLoop]: 310 mSDtfsCounter, 1359 mSDsluCounter, 1590 mSDsCounter, 0 mSdLazyCounter, 556 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1359 SdHoareTripleChecker+Valid, 1900 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-25 23:59:05,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1359 Valid, 1900 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 556 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-25 23:59:05,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2022-11-25 23:59:05,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 342. [2022-11-25 23:59:05,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 333 states have (on average 1.2312312312312312) internal successors, (410), 341 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) [2022-11-25 23:59:05,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 410 transitions. [2022-11-25 23:59:05,409 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 410 transitions. Word has length 84 [2022-11-25 23:59:05,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:59:05,410 INFO L495 AbstractCegarLoop]: Abstraction has 342 states and 410 transitions. [2022-11-25 23:59:05,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.0) internal successors, (84), 11 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:59:05,410 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 410 transitions. [2022-11-25 23:59:05,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-25 23:59:05,411 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:59:05,411 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:59:05,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-11-25 23:59:05,412 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 23:59:05,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:59:05,412 INFO L85 PathProgramCache]: Analyzing trace with hash -1223733489, now seen corresponding path program 1 times [2022-11-25 23:59:05,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:59:05,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081615697] [2022-11-25 23:59:05,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:59:05,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:59:05,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:59:05,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:59:05,970 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:59:05,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081615697] [2022-11-25 23:59:05,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081615697] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:59:05,970 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:59:05,970 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-25 23:59:05,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502337480] [2022-11-25 23:59:05,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:59:05,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-25 23:59:05,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:59:05,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-25 23:59:05,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-25 23:59:05,972 INFO L87 Difference]: Start difference. First operand 342 states and 410 transitions. Second operand has 13 states, 13 states have (on average 6.461538461538462) internal successors, (84), 12 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:59:09,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:59:09,312 INFO L93 Difference]: Finished difference Result 1526 states and 1930 transitions. [2022-11-25 23:59:09,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-25 23:59:09,312 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.461538461538462) internal successors, (84), 12 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2022-11-25 23:59:09,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:59:09,314 INFO L225 Difference]: With dead ends: 1526 [2022-11-25 23:59:09,314 INFO L226 Difference]: Without dead ends: 1383 [2022-11-25 23:59:09,314 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 [2022-11-25 23:59:09,315 INFO L413 NwaCegarLoop]: 882 mSDtfsCounter, 1144 mSDsluCounter, 5774 mSDsCounter, 0 mSdLazyCounter, 989 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1144 SdHoareTripleChecker+Valid, 6656 SdHoareTripleChecker+Invalid, 989 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 989 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-25 23:59:09,315 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1144 Valid, 6656 Invalid, 989 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 989 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-25 23:59:09,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1383 states. [2022-11-25 23:59:09,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1383 to 285. [2022-11-25 23:59:09,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 279 states have (on average 1.2114695340501793) internal successors, (338), 284 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:59:09,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 338 transitions. [2022-11-25 23:59:09,553 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 338 transitions. Word has length 84 [2022-11-25 23:59:09,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:59:09,554 INFO L495 AbstractCegarLoop]: Abstraction has 285 states and 338 transitions. [2022-11-25 23:59:09,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.461538461538462) internal successors, (84), 12 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:59:09,554 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 338 transitions. [2022-11-25 23:59:09,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-25 23:59:09,554 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:59:09,555 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:59:09,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-11-25 23:59:09,555 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 23:59:09,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:59:09,555 INFO L85 PathProgramCache]: Analyzing trace with hash -1559722417, now seen corresponding path program 1 times [2022-11-25 23:59:09,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:59:09,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488464834] [2022-11-25 23:59:09,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:59:09,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:59:09,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:59:10,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:59:10,310 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:59:10,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488464834] [2022-11-25 23:59:10,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488464834] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:59:10,310 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:59:10,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-25 23:59:10,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331737230] [2022-11-25 23:59:10,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:59:10,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-25 23:59:10,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:59:10,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-25 23:59:10,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2022-11-25 23:59:10,312 INFO L87 Difference]: Start difference. First operand 285 states and 338 transitions. Second operand has 15 states, 15 states have (on average 5.6) internal successors, (84), 14 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:59:12,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:59:12,046 INFO L93 Difference]: Finished difference Result 564 states and 690 transitions. [2022-11-25 23:59:12,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-25 23:59:12,046 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.6) internal successors, (84), 14 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2022-11-25 23:59:12,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:59:12,047 INFO L225 Difference]: With dead ends: 564 [2022-11-25 23:59:12,047 INFO L226 Difference]: Without dead ends: 433 [2022-11-25 23:59:12,048 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=190, Invalid=512, Unknown=0, NotChecked=0, Total=702 [2022-11-25 23:59:12,048 INFO L413 NwaCegarLoop]: 294 mSDtfsCounter, 1042 mSDsluCounter, 2133 mSDsCounter, 0 mSdLazyCounter, 640 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1042 SdHoareTripleChecker+Valid, 2427 SdHoareTripleChecker+Invalid, 640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-25 23:59:12,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1042 Valid, 2427 Invalid, 640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 640 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-25 23:59:12,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2022-11-25 23:59:12,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 285. [2022-11-25 23:59:12,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 279 states have (on average 1.2078853046594982) internal successors, (337), 284 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:59:12,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 337 transitions. [2022-11-25 23:59:12,263 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 337 transitions. Word has length 84 [2022-11-25 23:59:12,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:59:12,263 INFO L495 AbstractCegarLoop]: Abstraction has 285 states and 337 transitions. [2022-11-25 23:59:12,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.6) internal successors, (84), 14 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:59:12,264 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 337 transitions. [2022-11-25 23:59:12,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-11-25 23:59:12,264 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:59:12,265 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:59:12,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-11-25 23:59:12,265 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 23:59:12,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:59:12,265 INFO L85 PathProgramCache]: Analyzing trace with hash 1570867187, now seen corresponding path program 1 times [2022-11-25 23:59:12,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:59:12,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155023867] [2022-11-25 23:59:12,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:59:12,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:59:12,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:59:12,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:59:12,883 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:59:12,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155023867] [2022-11-25 23:59:12,883 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155023867] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:59:12,883 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:59:12,883 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-25 23:59:12,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510660697] [2022-11-25 23:59:12,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:59:12,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-25 23:59:12,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:59:12,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-25 23:59:12,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-25 23:59:12,885 INFO L87 Difference]: Start difference. First operand 285 states and 337 transitions. Second operand has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 12 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:59:16,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:59:16,463 INFO L93 Difference]: Finished difference Result 1347 states and 1709 transitions. [2022-11-25 23:59:16,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-25 23:59:16,464 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 12 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2022-11-25 23:59:16,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:59:16,465 INFO L225 Difference]: With dead ends: 1347 [2022-11-25 23:59:16,466 INFO L226 Difference]: Without dead ends: 1250 [2022-11-25 23:59:16,466 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2022-11-25 23:59:16,466 INFO L413 NwaCegarLoop]: 586 mSDtfsCounter, 1138 mSDsluCounter, 4217 mSDsCounter, 0 mSdLazyCounter, 920 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1138 SdHoareTripleChecker+Valid, 4803 SdHoareTripleChecker+Invalid, 920 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 920 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-25 23:59:16,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1138 Valid, 4803 Invalid, 920 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 920 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-25 23:59:16,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2022-11-25 23:59:16,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 274. [2022-11-25 23:59:16,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 269 states have (on average 1.204460966542751) internal successors, (324), 273 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:59:16,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 324 transitions. [2022-11-25 23:59:16,703 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 324 transitions. Word has length 85 [2022-11-25 23:59:16,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:59:16,703 INFO L495 AbstractCegarLoop]: Abstraction has 274 states and 324 transitions. [2022-11-25 23:59:16,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 12 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:59:16,704 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 324 transitions. [2022-11-25 23:59:16,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-11-25 23:59:16,704 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:59:16,704 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:59:16,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-11-25 23:59:16,705 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 23:59:16,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:59:16,705 INFO L85 PathProgramCache]: Analyzing trace with hash -1029208973, now seen corresponding path program 1 times [2022-11-25 23:59:16,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:59:16,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924218230] [2022-11-25 23:59:16,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:59:16,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:59:16,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:59:17,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:59:17,521 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:59:17,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924218230] [2022-11-25 23:59:17,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924218230] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:59:17,522 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:59:17,522 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-25 23:59:17,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992296674] [2022-11-25 23:59:17,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:59:17,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-25 23:59:17,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:59:17,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-25 23:59:17,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-11-25 23:59:17,523 INFO L87 Difference]: Start difference. First operand 274 states and 324 transitions. Second operand has 14 states, 14 states have (on average 6.071428571428571) internal successors, (85), 13 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:59:18,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:59:18,922 INFO L93 Difference]: Finished difference Result 360 states and 438 transitions. [2022-11-25 23:59:18,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-25 23:59:18,923 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.071428571428571) internal successors, (85), 13 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2022-11-25 23:59:18,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:59:18,923 INFO L225 Difference]: With dead ends: 360 [2022-11-25 23:59:18,923 INFO L226 Difference]: Without dead ends: 236 [2022-11-25 23:59:18,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=162, Invalid=438, Unknown=0, NotChecked=0, Total=600 [2022-11-25 23:59:18,924 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 234 mSDsluCounter, 1205 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 1357 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 23:59:18,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 1357 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 23:59:18,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2022-11-25 23:59:19,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 236. [2022-11-25 23:59:19,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 233 states have (on average 1.206008583690987) internal successors, (281), 235 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:59:19,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 281 transitions. [2022-11-25 23:59:19,154 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 281 transitions. Word has length 85 [2022-11-25 23:59:19,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:59:19,155 INFO L495 AbstractCegarLoop]: Abstraction has 236 states and 281 transitions. [2022-11-25 23:59:19,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.071428571428571) internal successors, (85), 13 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:59:19,155 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 281 transitions. [2022-11-25 23:59:19,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-11-25 23:59:19,156 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:59:19,156 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:59:19,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-11-25 23:59:19,157 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 23:59:19,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:59:19,157 INFO L85 PathProgramCache]: Analyzing trace with hash 458104271, now seen corresponding path program 1 times [2022-11-25 23:59:19,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:59:19,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567584072] [2022-11-25 23:59:19,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:59:19,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:59:19,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:59:19,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:59:19,366 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:59:19,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567584072] [2022-11-25 23:59:19,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567584072] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:59:19,367 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:59:19,367 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:59:19,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767228400] [2022-11-25 23:59:19,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:59:19,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:59:19,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:59:19,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:59:19,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:59:19,369 INFO L87 Difference]: Start difference. First operand 236 states and 281 transitions. Second operand has 8 states, 8 states have (on average 10.75) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:59:20,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:59:20,281 INFO L93 Difference]: Finished difference Result 370 states and 447 transitions. [2022-11-25 23:59:20,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 23:59:20,282 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2022-11-25 23:59:20,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:59:20,283 INFO L225 Difference]: With dead ends: 370 [2022-11-25 23:59:20,283 INFO L226 Difference]: Without dead ends: 362 [2022-11-25 23:59:20,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2022-11-25 23:59:20,284 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 549 mSDsluCounter, 451 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 549 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 23:59:20,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [549 Valid, 578 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 23:59:20,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2022-11-25 23:59:20,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 236. [2022-11-25 23:59:20,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 233 states have (on average 1.201716738197425) internal successors, (280), 235 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:59:20,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 280 transitions. [2022-11-25 23:59:20,497 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 280 transitions. Word has length 86 [2022-11-25 23:59:20,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:59:20,497 INFO L495 AbstractCegarLoop]: Abstraction has 236 states and 280 transitions. [2022-11-25 23:59:20,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:59:20,497 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 280 transitions. [2022-11-25 23:59:20,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-11-25 23:59:20,498 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:59:20,498 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:59:20,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-11-25 23:59:20,499 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 23:59:20,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:59:20,499 INFO L85 PathProgramCache]: Analyzing trace with hash -1517009585, now seen corresponding path program 1 times [2022-11-25 23:59:20,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:59:20,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523851164] [2022-11-25 23:59:20,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:59:20,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:59:20,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:59:20,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:59:20,729 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:59:20,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523851164] [2022-11-25 23:59:20,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523851164] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:59:20,730 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:59:20,730 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:59:20,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222742851] [2022-11-25 23:59:20,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:59:20,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:59:20,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:59:20,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:59:20,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:59:20,732 INFO L87 Difference]: Start difference. First operand 236 states and 280 transitions. Second operand has 8 states, 8 states have (on average 10.75) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:59:21,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:59:21,724 INFO L93 Difference]: Finished difference Result 509 states and 625 transitions. [2022-11-25 23:59:21,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-25 23:59:21,724 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2022-11-25 23:59:21,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:59:21,725 INFO L225 Difference]: With dead ends: 509 [2022-11-25 23:59:21,725 INFO L226 Difference]: Without dead ends: 389 [2022-11-25 23:59:21,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2022-11-25 23:59:21,726 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 603 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 603 SdHoareTripleChecker+Valid, 544 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 23:59:21,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [603 Valid, 544 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 23:59:21,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2022-11-25 23:59:21,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 236. [2022-11-25 23:59:21,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 233 states have (on average 1.1931330472103003) internal successors, (278), 235 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:59:21,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 278 transitions. [2022-11-25 23:59:21,942 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 278 transitions. Word has length 86 [2022-11-25 23:59:21,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:59:21,942 INFO L495 AbstractCegarLoop]: Abstraction has 236 states and 278 transitions. [2022-11-25 23:59:21,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:59:21,942 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 278 transitions. [2022-11-25 23:59:21,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-11-25 23:59:21,943 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:59:21,943 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] [2022-11-25 23:59:21,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-11-25 23:59:21,943 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 23:59:21,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:59:21,943 INFO L85 PathProgramCache]: Analyzing trace with hash 615115764, now seen corresponding path program 1 times [2022-11-25 23:59:21,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:59:21,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111324126] [2022-11-25 23:59:21,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:59:21,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:59:21,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:59:22,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:59:22,506 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:59:22,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111324126] [2022-11-25 23:59:22,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111324126] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:59:22,507 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:59:22,507 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-25 23:59:22,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872021968] [2022-11-25 23:59:22,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:59:22,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 23:59:22,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:59:22,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 23:59:22,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-25 23:59:22,508 INFO L87 Difference]: Start difference. First operand 236 states and 278 transitions. Second operand has 12 states, 12 states have (on average 7.333333333333333) internal successors, (88), 11 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:59:24,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:59:24,099 INFO L93 Difference]: Finished difference Result 556 states and 688 transitions. [2022-11-25 23:59:24,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 23:59:24,100 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.333333333333333) internal successors, (88), 11 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2022-11-25 23:59:24,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:59:24,101 INFO L225 Difference]: With dead ends: 556 [2022-11-25 23:59:24,101 INFO L226 Difference]: Without dead ends: 550 [2022-11-25 23:59:24,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-11-25 23:59:24,102 INFO L413 NwaCegarLoop]: 317 mSDtfsCounter, 752 mSDsluCounter, 1255 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 752 SdHoareTripleChecker+Valid, 1572 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 23:59:24,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [752 Valid, 1572 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 23:59:24,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2022-11-25 23:59:24,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 230. [2022-11-25 23:59:24,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 228 states have (on average 1.1885964912280702) internal successors, (271), 229 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:59:24,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 271 transitions. [2022-11-25 23:59:24,328 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 271 transitions. Word has length 88 [2022-11-25 23:59:24,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:59:24,329 INFO L495 AbstractCegarLoop]: Abstraction has 230 states and 271 transitions. [2022-11-25 23:59:24,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.333333333333333) internal successors, (88), 11 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:59:24,329 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 271 transitions. [2022-11-25 23:59:24,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-11-25 23:59:24,330 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:59:24,330 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:59:24,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-11-25 23:59:24,330 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 23:59:24,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:59:24,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1522049356, now seen corresponding path program 1 times [2022-11-25 23:59:24,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:59:24,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773479092] [2022-11-25 23:59:24,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:59:24,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:59:24,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:59:25,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:59:25,987 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:59:25,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773479092] [2022-11-25 23:59:25,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773479092] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:59:25,988 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:59:25,988 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-11-25 23:59:25,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690827629] [2022-11-25 23:59:25,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:59:25,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-25 23:59:25,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:59:25,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-25 23:59:25,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=587, Unknown=0, NotChecked=0, Total=650 [2022-11-25 23:59:25,989 INFO L87 Difference]: Start difference. First operand 230 states and 271 transitions. Second operand has 26 states, 26 states have (on average 3.3846153846153846) internal successors, (88), 26 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:59:28,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:59:28,672 INFO L93 Difference]: Finished difference Result 278 states and 321 transitions. [2022-11-25 23:59:28,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-25 23:59:28,673 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.3846153846153846) internal successors, (88), 26 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2022-11-25 23:59:28,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:59:28,673 INFO L225 Difference]: With dead ends: 278 [2022-11-25 23:59:28,673 INFO L226 Difference]: Without dead ends: 269 [2022-11-25 23:59:28,674 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 311 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=337, Invalid=1919, Unknown=0, NotChecked=0, Total=2256 [2022-11-25 23:59:28,674 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 568 mSDsluCounter, 1932 mSDsCounter, 0 mSdLazyCounter, 1270 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 568 SdHoareTripleChecker+Valid, 2055 SdHoareTripleChecker+Invalid, 1277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-25 23:59:28,675 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [568 Valid, 2055 Invalid, 1277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1270 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-25 23:59:28,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2022-11-25 23:59:28,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 246. [2022-11-25 23:59:28,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 244 states have (on average 1.1885245901639345) internal successors, (290), 245 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:59:28,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 290 transitions. [2022-11-25 23:59:28,911 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 290 transitions. Word has length 88 [2022-11-25 23:59:28,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:59:28,911 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 290 transitions. [2022-11-25 23:59:28,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.3846153846153846) internal successors, (88), 26 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:59:28,911 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 290 transitions. [2022-11-25 23:59:28,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-11-25 23:59:28,912 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:59:28,912 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:59:28,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-11-25 23:59:28,912 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 23:59:28,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:59:28,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1503027030, now seen corresponding path program 1 times [2022-11-25 23:59:28,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:59:28,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987827796] [2022-11-25 23:59:28,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:59:28,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:59:28,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:59:30,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:59:30,381 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:59:30,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987827796] [2022-11-25 23:59:30,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987827796] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:59:30,381 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:59:30,381 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-11-25 23:59:30,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442251590] [2022-11-25 23:59:30,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:59:30,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-25 23:59:30,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:59:30,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-25 23:59:30,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=377, Unknown=0, NotChecked=0, Total=420 [2022-11-25 23:59:30,383 INFO L87 Difference]: Start difference. First operand 246 states and 290 transitions. Second operand has 21 states, 21 states have (on average 4.238095238095238) internal successors, (89), 20 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:59:34,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:59:34,279 INFO L93 Difference]: Finished difference Result 661 states and 813 transitions. [2022-11-25 23:59:34,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-25 23:59:34,279 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 4.238095238095238) internal successors, (89), 20 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2022-11-25 23:59:34,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:59:34,280 INFO L225 Difference]: With dead ends: 661 [2022-11-25 23:59:34,280 INFO L226 Difference]: Without dead ends: 648 [2022-11-25 23:59:34,281 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=276, Invalid=1446, Unknown=0, NotChecked=0, Total=1722 [2022-11-25 23:59:34,281 INFO L413 NwaCegarLoop]: 321 mSDtfsCounter, 696 mSDsluCounter, 4453 mSDsCounter, 0 mSdLazyCounter, 1511 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 696 SdHoareTripleChecker+Valid, 4774 SdHoareTripleChecker+Invalid, 1517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:59:34,282 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [696 Valid, 4774 Invalid, 1517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1511 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-25 23:59:34,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 648 states. [2022-11-25 23:59:34,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 648 to 266. [2022-11-25 23:59:34,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 264 states have (on average 1.1856060606060606) internal successors, (313), 265 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:59:34,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 313 transitions. [2022-11-25 23:59:34,536 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 313 transitions. Word has length 89 [2022-11-25 23:59:34,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:59:34,536 INFO L495 AbstractCegarLoop]: Abstraction has 266 states and 313 transitions. [2022-11-25 23:59:34,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 4.238095238095238) internal successors, (89), 20 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:59:34,536 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 313 transitions. [2022-11-25 23:59:34,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-11-25 23:59:34,537 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:59:34,537 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] [2022-11-25 23:59:34,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-11-25 23:59:34,537 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 23:59:34,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:59:34,538 INFO L85 PathProgramCache]: Analyzing trace with hash 345988239, now seen corresponding path program 1 times [2022-11-25 23:59:34,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:59:34,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846688485] [2022-11-25 23:59:34,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:59:34,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:59:34,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:59:35,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:59:35,043 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:59:35,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846688485] [2022-11-25 23:59:35,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846688485] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:59:35,043 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:59:35,043 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-25 23:59:35,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110892215] [2022-11-25 23:59:35,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:59:35,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 23:59:35,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:59:35,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 23:59:35,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-25 23:59:35,045 INFO L87 Difference]: Start difference. First operand 266 states and 313 transitions. Second operand has 12 states, 12 states have (on average 7.416666666666667) internal successors, (89), 11 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:59:36,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:59:36,652 INFO L93 Difference]: Finished difference Result 621 states and 766 transitions. [2022-11-25 23:59:36,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 23:59:36,652 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.416666666666667) internal successors, (89), 11 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2022-11-25 23:59:36,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:59:36,653 INFO L225 Difference]: With dead ends: 621 [2022-11-25 23:59:36,653 INFO L226 Difference]: Without dead ends: 605 [2022-11-25 23:59:36,654 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-11-25 23:59:36,654 INFO L413 NwaCegarLoop]: 336 mSDtfsCounter, 837 mSDsluCounter, 1178 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 837 SdHoareTripleChecker+Valid, 1514 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 23:59:36,654 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [837 Valid, 1514 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 23:59:36,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2022-11-25 23:59:36,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 217. [2022-11-25 23:59:36,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 216 states have (on average 1.1851851851851851) internal successors, (256), 216 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:59:36,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 256 transitions. [2022-11-25 23:59:36,897 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 256 transitions. Word has length 89 [2022-11-25 23:59:36,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:59:36,897 INFO L495 AbstractCegarLoop]: Abstraction has 217 states and 256 transitions. [2022-11-25 23:59:36,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.416666666666667) internal successors, (89), 11 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:59:36,898 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 256 transitions. [2022-11-25 23:59:36,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-11-25 23:59:36,899 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:59:36,899 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:59:36,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-11-25 23:59:36,899 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 23:59:36,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:59:36,900 INFO L85 PathProgramCache]: Analyzing trace with hash -1337256340, now seen corresponding path program 1 times [2022-11-25 23:59:36,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:59:36,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333970033] [2022-11-25 23:59:36,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:59:36,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:59:36,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:59:37,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:59:37,034 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:59:37,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333970033] [2022-11-25 23:59:37,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333970033] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:59:37,035 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:59:37,035 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:59:37,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025183845] [2022-11-25 23:59:37,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:59:37,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:59:37,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:59:37,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:59:37,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:59:37,037 INFO L87 Difference]: Start difference. First operand 217 states and 256 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 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) [2022-11-25 23:59:37,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:59:37,438 INFO L93 Difference]: Finished difference Result 312 states and 381 transitions. [2022-11-25 23:59:37,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:59:37,438 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 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 [2022-11-25 23:59:37,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:59:37,439 INFO L225 Difference]: With dead ends: 312 [2022-11-25 23:59:37,439 INFO L226 Difference]: Without dead ends: 268 [2022-11-25 23:59:37,439 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 [2022-11-25 23:59:37,440 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 65 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:59:37,440 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 299 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:59:37,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2022-11-25 23:59:37,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 258. [2022-11-25 23:59:37,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 257 states have (on average 1.2023346303501945) internal successors, (309), 257 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:59:37,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 309 transitions. [2022-11-25 23:59:37,769 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 309 transitions. Word has length 107 [2022-11-25 23:59:37,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:59:37,769 INFO L495 AbstractCegarLoop]: Abstraction has 258 states and 309 transitions. [2022-11-25 23:59:37,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 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) [2022-11-25 23:59:37,770 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 309 transitions. [2022-11-25 23:59:37,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-11-25 23:59:37,770 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:59:37,771 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:59:37,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-11-25 23:59:37,771 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 23:59:37,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:59:37,771 INFO L85 PathProgramCache]: Analyzing trace with hash 1745745532, now seen corresponding path program 1 times [2022-11-25 23:59:37,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:59:37,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020274862] [2022-11-25 23:59:37,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:59:37,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:59:37,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:59:37,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:59:37,889 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:59:37,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020274862] [2022-11-25 23:59:37,890 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020274862] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:59:37,890 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:59:37,890 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:59:37,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907500358] [2022-11-25 23:59:37,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:59:37,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:59:37,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:59:37,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:59:37,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:59:37,891 INFO L87 Difference]: Start difference. First operand 258 states and 309 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:59:38,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:59:38,549 INFO L93 Difference]: Finished difference Result 506 states and 637 transitions. [2022-11-25 23:59:38,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:59:38,550 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2022-11-25 23:59:38,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:59:38,551 INFO L225 Difference]: With dead ends: 506 [2022-11-25 23:59:38,551 INFO L226 Difference]: Without dead ends: 382 [2022-11-25 23:59:38,551 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 [2022-11-25 23:59:38,552 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 58 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:59:38,552 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 300 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:59:38,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2022-11-25 23:59:39,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 368. [2022-11-25 23:59:39,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 367 states have (on average 1.237057220708447) internal successors, (454), 367 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:59:39,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 454 transitions. [2022-11-25 23:59:39,103 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 454 transitions. Word has length 110 [2022-11-25 23:59:39,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:59:39,103 INFO L495 AbstractCegarLoop]: Abstraction has 368 states and 454 transitions. [2022-11-25 23:59:39,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:59:39,103 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 454 transitions. [2022-11-25 23:59:39,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-25 23:59:39,104 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:59:39,104 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:59:39,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-11-25 23:59:39,104 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 23:59:39,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:59:39,105 INFO L85 PathProgramCache]: Analyzing trace with hash 86933805, now seen corresponding path program 1 times [2022-11-25 23:59:39,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:59:39,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297363648] [2022-11-25 23:59:39,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:59:39,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:59:39,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:59:39,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:59:39,228 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:59:39,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297363648] [2022-11-25 23:59:39,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297363648] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:59:39,228 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:59:39,228 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:59:39,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588692534] [2022-11-25 23:59:39,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:59:39,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:59:39,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:59:39,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:59:39,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:59:39,230 INFO L87 Difference]: Start difference. First operand 368 states and 454 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 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) [2022-11-25 23:59:40,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:59:40,648 INFO L93 Difference]: Finished difference Result 836 states and 1072 transitions. [2022-11-25 23:59:40,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:59:40,649 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 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 [2022-11-25 23:59:40,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:59:40,650 INFO L225 Difference]: With dead ends: 836 [2022-11-25 23:59:40,650 INFO L226 Difference]: Without dead ends: 602 [2022-11-25 23:59:40,651 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 [2022-11-25 23:59:40,651 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 51 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:59:40,652 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 301 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:59:40,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2022-11-25 23:59:41,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 576. [2022-11-25 23:59:41,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 575 states have (on average 1.2626086956521738) internal successors, (726), 575 states have internal predecessors, (726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:59:41,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 726 transitions. [2022-11-25 23:59:41,662 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 726 transitions. Word has length 113 [2022-11-25 23:59:41,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:59:41,662 INFO L495 AbstractCegarLoop]: Abstraction has 576 states and 726 transitions. [2022-11-25 23:59:41,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 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) [2022-11-25 23:59:41,662 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 726 transitions. [2022-11-25 23:59:41,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-25 23:59:41,663 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:59:41,663 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:59:41,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-11-25 23:59:41,664 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 23:59:41,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:59:41,664 INFO L85 PathProgramCache]: Analyzing trace with hash -99208674, now seen corresponding path program 1 times [2022-11-25 23:59:41,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:59:41,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087047583] [2022-11-25 23:59:41,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:59:41,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:59:41,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:59:41,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:59:41,802 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:59:41,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087047583] [2022-11-25 23:59:41,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087047583] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:59:41,802 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:59:41,803 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:59:41,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931373759] [2022-11-25 23:59:41,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:59:41,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:59:41,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:59:41,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:59:41,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:59:41,804 INFO L87 Difference]: Start difference. First operand 576 states and 726 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 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) [2022-11-25 23:59:43,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:59:43,843 INFO L93 Difference]: Finished difference Result 1460 states and 1888 transitions. [2022-11-25 23:59:43,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:59:43,844 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 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 [2022-11-25 23:59:43,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:59:43,861 INFO L225 Difference]: With dead ends: 1460 [2022-11-25 23:59:43,861 INFO L226 Difference]: Without dead ends: 1018 [2022-11-25 23:59:43,862 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 [2022-11-25 23:59:43,862 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 44 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:59:43,863 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 302 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:59:43,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1018 states. [2022-11-25 23:59:45,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1018 to 968. [2022-11-25 23:59:45,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 968 states, 967 states have (on average 1.2761116856256463) internal successors, (1234), 967 states have internal predecessors, (1234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:59:45,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 968 states to 968 states and 1234 transitions. [2022-11-25 23:59:45,958 INFO L78 Accepts]: Start accepts. Automaton has 968 states and 1234 transitions. Word has length 116 [2022-11-25 23:59:45,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:59:45,958 INFO L495 AbstractCegarLoop]: Abstraction has 968 states and 1234 transitions. [2022-11-25 23:59:45,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 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) [2022-11-25 23:59:45,958 INFO L276 IsEmpty]: Start isEmpty. Operand 968 states and 1234 transitions. [2022-11-25 23:59:45,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-11-25 23:59:45,959 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:59:45,959 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:59:45,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-11-25 23:59:45,959 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 23:59:45,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:59:45,960 INFO L85 PathProgramCache]: Analyzing trace with hash 970496512, now seen corresponding path program 1 times [2022-11-25 23:59:45,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:59:45,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478190476] [2022-11-25 23:59:45,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:59:45,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:59:45,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:59:46,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:59:46,081 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:59:46,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478190476] [2022-11-25 23:59:46,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478190476] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:59:46,081 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:59:46,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:59:46,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704456247] [2022-11-25 23:59:46,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:59:46,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:59:46,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:59:46,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:59:46,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:59:46,084 INFO L87 Difference]: Start difference. First operand 968 states and 1234 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 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) [2022-11-25 23:59:49,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:59:49,999 INFO L93 Difference]: Finished difference Result 2636 states and 3412 transitions. [2022-11-25 23:59:50,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:59:50,000 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 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 [2022-11-25 23:59:50,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:59:50,002 INFO L225 Difference]: With dead ends: 2636 [2022-11-25 23:59:50,002 INFO L226 Difference]: Without dead ends: 1802 [2022-11-25 23:59:50,003 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 [2022-11-25 23:59:50,003 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 34 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:59:50,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 303 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:59:50,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1802 states. [2022-11-25 23:59:53,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1802 to 1704. [2022-11-25 23:59:53,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1704 states, 1703 states have (on average 1.2789195537287141) internal successors, (2178), 1703 states have internal predecessors, (2178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:59:53,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1704 states to 1704 states and 2178 transitions. [2022-11-25 23:59:53,699 INFO L78 Accepts]: Start accepts. Automaton has 1704 states and 2178 transitions. Word has length 119 [2022-11-25 23:59:53,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:59:53,699 INFO L495 AbstractCegarLoop]: Abstraction has 1704 states and 2178 transitions. [2022-11-25 23:59:53,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 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) [2022-11-25 23:59:53,700 INFO L276 IsEmpty]: Start isEmpty. Operand 1704 states and 2178 transitions. [2022-11-25 23:59:53,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-11-25 23:59:53,700 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:59:53,701 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:59:53,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-11-25 23:59:53,701 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 23:59:53,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:59:53,701 INFO L85 PathProgramCache]: Analyzing trace with hash 488041427, now seen corresponding path program 1 times [2022-11-25 23:59:53,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:59:53,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128463196] [2022-11-25 23:59:53,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:59:53,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:59:53,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:59:53,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:59:53,811 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:59:53,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128463196] [2022-11-25 23:59:53,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128463196] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:59:53,812 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:59:53,812 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:59:53,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734974660] [2022-11-25 23:59:53,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:59:53,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 23:59:53,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:59:53,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 23:59:53,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 23:59:53,813 INFO L87 Difference]: Start difference. First operand 1704 states and 2178 transitions. Second operand has 7 states, 7 states have (on average 17.428571428571427) internal successors, (122), 7 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:00:05,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:00:05,725 INFO L93 Difference]: Finished difference Result 6809 states and 8797 transitions. [2022-11-26 00:00:05,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-26 00:00:05,726 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.428571428571427) internal successors, (122), 7 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2022-11-26 00:00:05,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:00:05,736 INFO L225 Difference]: With dead ends: 6809 [2022-11-26 00:00:05,736 INFO L226 Difference]: Without dead ends: 5239 [2022-11-26 00:00:05,739 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:00:05,739 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 847 mSDsluCounter, 1240 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 847 SdHoareTripleChecker+Valid, 1385 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:00:05,740 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [847 Valid, 1385 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:00:05,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5239 states. [2022-11-26 00:00:11,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5239 to 2468. [2022-11-26 00:00:11,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2468 states, 2467 states have (on average 1.270368869071747) internal successors, (3134), 2467 states have internal predecessors, (3134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:00:11,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2468 states to 2468 states and 3134 transitions. [2022-11-26 00:00:11,450 INFO L78 Accepts]: Start accepts. Automaton has 2468 states and 3134 transitions. Word has length 122 [2022-11-26 00:00:11,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:00:11,450 INFO L495 AbstractCegarLoop]: Abstraction has 2468 states and 3134 transitions. [2022-11-26 00:00:11,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.428571428571427) internal successors, (122), 7 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:00:11,451 INFO L276 IsEmpty]: Start isEmpty. Operand 2468 states and 3134 transitions. [2022-11-26 00:00:11,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-11-26 00:00:11,451 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:00:11,452 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:00:11,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-11-26 00:00:11,452 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-26 00:00:11,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:00:11,453 INFO L85 PathProgramCache]: Analyzing trace with hash 601773992, now seen corresponding path program 1 times [2022-11-26 00:00:11,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:00:11,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197616507] [2022-11-26 00:00:11,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:00:11,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:00:11,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:00:11,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:00:11,524 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:00:11,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197616507] [2022-11-26 00:00:11,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197616507] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:00:11,524 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:00:11,525 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:00:11,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042190317] [2022-11-26 00:00:11,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:00:11,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:00:11,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:00:11,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:00:11,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:00:11,526 INFO L87 Difference]: Start difference. First operand 2468 states and 3134 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:00:18,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:00:18,950 INFO L93 Difference]: Finished difference Result 5412 states and 6908 transitions. [2022-11-26 00:00:18,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:00:18,950 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 124 [2022-11-26 00:00:18,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:00:18,955 INFO L225 Difference]: With dead ends: 5412 [2022-11-26 00:00:18,955 INFO L226 Difference]: Without dead ends: 3078 [2022-11-26 00:00:18,959 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 [2022-11-26 00:00:18,959 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 79 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:00:18,959 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 237 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:00:18,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3078 states. [2022-11-26 00:00:25,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3078 to 3076. [2022-11-26 00:00:25,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3076 states, 3075 states have (on average 1.263089430894309) internal successors, (3884), 3075 states have internal predecessors, (3884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:00:25,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3076 states to 3076 states and 3884 transitions. [2022-11-26 00:00:25,705 INFO L78 Accepts]: Start accepts. Automaton has 3076 states and 3884 transitions. Word has length 124 [2022-11-26 00:00:25,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:00:25,705 INFO L495 AbstractCegarLoop]: Abstraction has 3076 states and 3884 transitions. [2022-11-26 00:00:25,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:00:25,705 INFO L276 IsEmpty]: Start isEmpty. Operand 3076 states and 3884 transitions. [2022-11-26 00:00:25,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-11-26 00:00:25,706 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:00:25,706 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:00:25,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-11-26 00:00:25,706 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-26 00:00:25,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:00:25,706 INFO L85 PathProgramCache]: Analyzing trace with hash -1582353173, now seen corresponding path program 1 times [2022-11-26 00:00:25,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:00:25,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878180103] [2022-11-26 00:00:25,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:00:25,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:00:25,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:00:25,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:00:25,929 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:00:25,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878180103] [2022-11-26 00:00:25,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878180103] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:00:25,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:00:25,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-26 00:00:25,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479732672] [2022-11-26 00:00:25,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:00:25,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-26 00:00:25,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:00:25,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-26 00:00:25,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-26 00:00:25,931 INFO L87 Difference]: Start difference. First operand 3076 states and 3884 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) 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) [2022-11-26 00:00:32,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:00:32,809 INFO L93 Difference]: Finished difference Result 6020 states and 7624 transitions. [2022-11-26 00:00:32,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-26 00:00:32,809 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) 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 [2022-11-26 00:00:32,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:00:32,814 INFO L225 Difference]: With dead ends: 6020 [2022-11-26 00:00:32,814 INFO L226 Difference]: Without dead ends: 3078 [2022-11-26 00:00:32,817 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2022-11-26 00:00:32,818 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 184 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:00:32,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 363 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:00:32,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3078 states. [2022-11-26 00:00:39,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3078 to 3076. [2022-11-26 00:00:39,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3076 states, 3075 states have (on average 1.262439024390244) internal successors, (3882), 3075 states have internal predecessors, (3882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:00:39,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3076 states to 3076 states and 3882 transitions. [2022-11-26 00:00:39,802 INFO L78 Accepts]: Start accepts. Automaton has 3076 states and 3882 transitions. Word has length 124 [2022-11-26 00:00:39,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:00:39,803 INFO L495 AbstractCegarLoop]: Abstraction has 3076 states and 3882 transitions. [2022-11-26 00:00:39,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) 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) [2022-11-26 00:00:39,803 INFO L276 IsEmpty]: Start isEmpty. Operand 3076 states and 3882 transitions. [2022-11-26 00:00:39,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-11-26 00:00:39,804 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:00:39,804 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:00:39,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-11-26 00:00:39,804 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-26 00:00:39,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:00:39,805 INFO L85 PathProgramCache]: Analyzing trace with hash -6458196, now seen corresponding path program 1 times [2022-11-26 00:00:39,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:00:39,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998867652] [2022-11-26 00:00:39,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:00:39,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:00:39,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:00:40,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:00:40,100 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:00:40,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998867652] [2022-11-26 00:00:40,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998867652] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:00:40,101 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:00:40,101 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-26 00:00:40,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696649596] [2022-11-26 00:00:40,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:00:40,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-26 00:00:40,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:00:40,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-26 00:00:40,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-26 00:00:40,103 INFO L87 Difference]: Start difference. First operand 3076 states and 3882 transitions. Second operand has 7 states, 7 states have (on average 17.857142857142858) internal successors, (125), 7 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) [2022-11-26 00:00:50,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:00:50,550 INFO L93 Difference]: Finished difference Result 4243 states and 5298 transitions. [2022-11-26 00:00:50,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:00:50,550 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.857142857142858) internal successors, (125), 7 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 [2022-11-26 00:00:50,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:00:50,554 INFO L225 Difference]: With dead ends: 4243 [2022-11-26 00:00:50,554 INFO L226 Difference]: Without dead ends: 4241 [2022-11-26 00:00:50,555 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2022-11-26 00:00:50,555 INFO L413 NwaCegarLoop]: 225 mSDtfsCounter, 341 mSDsluCounter, 747 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 972 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:00:50,556 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [341 Valid, 972 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:00:50,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4241 states. [2022-11-26 00:00:57,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4241 to 3076. [2022-11-26 00:00:57,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3076 states, 3075 states have (on average 1.246829268292683) internal successors, (3834), 3075 states have internal predecessors, (3834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:00:57,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3076 states to 3076 states and 3834 transitions. [2022-11-26 00:00:57,448 INFO L78 Accepts]: Start accepts. Automaton has 3076 states and 3834 transitions. Word has length 125 [2022-11-26 00:00:57,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:00:57,449 INFO L495 AbstractCegarLoop]: Abstraction has 3076 states and 3834 transitions. [2022-11-26 00:00:57,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.857142857142858) internal successors, (125), 7 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) [2022-11-26 00:00:57,449 INFO L276 IsEmpty]: Start isEmpty. Operand 3076 states and 3834 transitions. [2022-11-26 00:00:57,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-11-26 00:00:57,450 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:00:57,451 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:00:57,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-11-26 00:00:57,451 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-26 00:00:57,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:00:57,452 INFO L85 PathProgramCache]: Analyzing trace with hash 238346755, now seen corresponding path program 1 times [2022-11-26 00:00:57,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:00:57,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130617456] [2022-11-26 00:00:57,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:00:57,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:00:57,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:00:58,019 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-26 00:00:58,020 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:00:58,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130617456] [2022-11-26 00:00:58,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130617456] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:00:58,020 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:00:58,021 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-26 00:00:58,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30148778] [2022-11-26 00:00:58,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:00:58,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-26 00:00:58,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:00:58,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-26 00:00:58,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-11-26 00:00:58,022 INFO L87 Difference]: Start difference. First operand 3076 states and 3834 transitions. Second operand has 11 states, 11 states have (on average 12.090909090909092) internal successors, (133), 10 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:01:22,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:01:22,871 INFO L93 Difference]: Finished difference Result 12997 states and 16215 transitions. [2022-11-26 00:01:22,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-26 00:01:22,872 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.090909090909092) internal successors, (133), 10 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 144 [2022-11-26 00:01:22,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:01:22,883 INFO L225 Difference]: With dead ends: 12997 [2022-11-26 00:01:22,883 INFO L226 Difference]: Without dead ends: 10038 [2022-11-26 00:01:22,888 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=224, Invalid=646, Unknown=0, NotChecked=0, Total=870 [2022-11-26 00:01:22,888 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 1498 mSDsluCounter, 578 mSDsCounter, 0 mSdLazyCounter, 691 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1498 SdHoareTripleChecker+Valid, 773 SdHoareTripleChecker+Invalid, 728 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 691 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:01:22,889 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1498 Valid, 773 Invalid, 728 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 691 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-26 00:01:22,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10038 states. [2022-11-26 00:01:30,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10038 to 3086. [2022-11-26 00:01:30,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3086 states, 3085 states have (on average 1.246029173419773) internal successors, (3844), 3085 states have internal predecessors, (3844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:01:30,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3086 states to 3086 states and 3844 transitions. [2022-11-26 00:01:30,517 INFO L78 Accepts]: Start accepts. Automaton has 3086 states and 3844 transitions. Word has length 144 [2022-11-26 00:01:30,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:01:30,517 INFO L495 AbstractCegarLoop]: Abstraction has 3086 states and 3844 transitions. [2022-11-26 00:01:30,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.090909090909092) internal successors, (133), 10 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:01:30,517 INFO L276 IsEmpty]: Start isEmpty. Operand 3086 states and 3844 transitions. [2022-11-26 00:01:30,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-11-26 00:01:30,518 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:01:30,518 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:01:30,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-11-26 00:01:30,519 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-26 00:01:30,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:01:30,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1931609592, now seen corresponding path program 1 times [2022-11-26 00:01:30,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:01:30,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791240827] [2022-11-26 00:01:30,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:01:30,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:01:30,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:01:30,904 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-26 00:01:30,904 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:01:30,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791240827] [2022-11-26 00:01:30,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791240827] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:01:30,905 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:01:30,905 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-26 00:01:30,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914881776] [2022-11-26 00:01:30,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:01:30,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-26 00:01:30,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:01:30,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-26 00:01:30,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:01:30,906 INFO L87 Difference]: Start difference. First operand 3086 states and 3844 transitions. Second operand has 8 states, 8 states have (on average 16.75) internal successors, (134), 7 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:01:42,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:01:42,814 INFO L93 Difference]: Finished difference Result 7737 states and 9662 transitions. [2022-11-26 00:01:42,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-26 00:01:42,814 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 7 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 145 [2022-11-26 00:01:42,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:01:42,819 INFO L225 Difference]: With dead ends: 7737 [2022-11-26 00:01:42,819 INFO L226 Difference]: Without dead ends: 4778 [2022-11-26 00:01:42,821 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2022-11-26 00:01:42,822 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 391 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 391 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:01:42,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [391 Valid, 467 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:01:42,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4778 states. [2022-11-26 00:01:50,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4778 to 3076. [2022-11-26 00:01:50,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3076 states, 3075 states have (on average 1.2461788617886178) internal successors, (3832), 3075 states have internal predecessors, (3832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:01:50,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3076 states to 3076 states and 3832 transitions. [2022-11-26 00:01:50,014 INFO L78 Accepts]: Start accepts. Automaton has 3076 states and 3832 transitions. Word has length 145 [2022-11-26 00:01:50,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:01:50,014 INFO L495 AbstractCegarLoop]: Abstraction has 3076 states and 3832 transitions. [2022-11-26 00:01:50,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 7 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:01:50,015 INFO L276 IsEmpty]: Start isEmpty. Operand 3076 states and 3832 transitions. [2022-11-26 00:01:50,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-11-26 00:01:50,015 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:01:50,016 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:01:50,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-11-26 00:01:50,016 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-26 00:01:50,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:01:50,017 INFO L85 PathProgramCache]: Analyzing trace with hash -85742584, now seen corresponding path program 1 times [2022-11-26 00:01:50,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:01:50,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648930650] [2022-11-26 00:01:50,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:01:50,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:01:50,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:01:51,807 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-26 00:01:51,807 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:01:51,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648930650] [2022-11-26 00:01:51,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648930650] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:01:51,807 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:01:51,808 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-11-26 00:01:51,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825872125] [2022-11-26 00:01:51,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:01:51,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-26 00:01:51,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:01:51,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-26 00:01:51,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=581, Unknown=0, NotChecked=0, Total=650 [2022-11-26 00:01:51,809 INFO L87 Difference]: Start difference. First operand 3076 states and 3832 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:02:08,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:02:08,116 INFO L93 Difference]: Finished difference Result 9011 states and 11264 transitions. [2022-11-26 00:02:08,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-26 00:02:08,116 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 146 [2022-11-26 00:02:08,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:02:08,123 INFO L225 Difference]: With dead ends: 9011 [2022-11-26 00:02:08,123 INFO L226 Difference]: Without dead ends: 6058 [2022-11-26 00:02:08,126 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 330 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=352, Invalid=1904, Unknown=0, NotChecked=0, Total=2256 [2022-11-26 00:02:08,126 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 527 mSDsluCounter, 2703 mSDsCounter, 0 mSdLazyCounter, 1439 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 527 SdHoareTripleChecker+Valid, 2865 SdHoareTripleChecker+Invalid, 1439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:02:08,127 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [527 Valid, 2865 Invalid, 1439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1439 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-26 00:02:08,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6058 states. [2022-11-26 00:02:15,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6058 to 3094. [2022-11-26 00:02:15,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3094 states, 3093 states have (on average 1.245392822502425) internal successors, (3852), 3093 states have internal predecessors, (3852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:02:15,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3094 states to 3094 states and 3852 transitions. [2022-11-26 00:02:15,497 INFO L78 Accepts]: Start accepts. Automaton has 3094 states and 3852 transitions. Word has length 146 [2022-11-26 00:02:15,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:02:15,497 INFO L495 AbstractCegarLoop]: Abstraction has 3094 states and 3852 transitions. [2022-11-26 00:02:15,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:02:15,497 INFO L276 IsEmpty]: Start isEmpty. Operand 3094 states and 3852 transitions. [2022-11-26 00:02:15,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-11-26 00:02:15,498 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:02:15,498 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:02:15,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-11-26 00:02:15,499 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-26 00:02:15,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:02:15,499 INFO L85 PathProgramCache]: Analyzing trace with hash 624258686, now seen corresponding path program 1 times [2022-11-26 00:02:15,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:02:15,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595261754] [2022-11-26 00:02:15,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:02:15,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:02:15,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:02:21,590 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:02:21,590 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:02:21,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595261754] [2022-11-26 00:02:21,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595261754] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:02:21,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [224990200] [2022-11-26 00:02:21,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:02:21,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:02:21,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a87aa7fb-1fc7-4b14-b3c1-7d5c8d33986c/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:02:21,595 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a87aa7fb-1fc7-4b14-b3c1-7d5c8d33986c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:02:21,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a87aa7fb-1fc7-4b14-b3c1-7d5c8d33986c/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-26 00:02:22,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:02:22,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 941 conjuncts, 96 conjunts are in the unsatisfiable core [2022-11-26 00:02:22,055 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:03:27,218 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:03:27,218 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:09:39,719 WARN L233 SmtUtils]: Spent 8.50s on a formula simplification. DAG size of input: 462 DAG size of output: 457 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)