./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9544fc1e-2310-4b8e-b28c-e0e1e56408dd/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9544fc1e-2310-4b8e-b28c-e0e1e56408dd/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_9544fc1e-2310-4b8e-b28c-e0e1e56408dd/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9544fc1e-2310-4b8e-b28c-e0e1e56408dd/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9544fc1e-2310-4b8e-b28c-e0e1e56408dd/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_9544fc1e-2310-4b8e-b28c-e0e1e56408dd/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 930b16bc37a672cceaa805d09eab083d07141f7f88feaee710c310c880a88e07 --- 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 [2022-11-26 00:33:10,441 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:33:10,443 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:33:10,481 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:33:10,481 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:33:10,485 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:33:10,491 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:33:10,495 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:33:10,497 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:33:10,503 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:33:10,504 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:33:10,506 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:33:10,507 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:33:10,510 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:33:10,511 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:33:10,515 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:33:10,516 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:33:10,518 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:33:10,520 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:33:10,525 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:33:10,542 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:33:10,544 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:33:10,546 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:33:10,547 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:33:10,552 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:33:10,555 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:33:10,555 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:33:10,557 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:33:10,557 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:33:10,559 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:33:10,560 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:33:10,561 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:33:10,563 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:33:10,565 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:33:10,566 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:33:10,566 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:33:10,566 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:33:10,567 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:33:10,567 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:33:10,568 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:33:10,569 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:33:10,570 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9544fc1e-2310-4b8e-b28c-e0e1e56408dd/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-26 00:33:10,614 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:33:10,614 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:33:10,615 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:33:10,615 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:33:10,615 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:33:10,616 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:33:10,616 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:33:10,616 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:33:10,616 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:33:10,616 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:33:10,617 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:33:10,618 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:33:10,618 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:33:10,618 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:33:10,618 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:33:10,618 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:33:10,619 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:33:10,619 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:33:10,619 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:33:10,620 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 00:33:10,620 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:33:10,620 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 00:33:10,620 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:33:10,620 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:33:10,620 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:33:10,621 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:33:10,621 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 00:33:10,621 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:33:10,622 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:33:10,622 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:33:10,622 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:33:10,622 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:33:10,623 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:33:10,623 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:33:10,623 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:33:10,623 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:33:10,623 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:33:10,623 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:33:10,624 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:33:10,624 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:33:10,624 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:33:10,624 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_9544fc1e-2310-4b8e-b28c-e0e1e56408dd/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9544fc1e-2310-4b8e-b28c-e0e1e56408dd/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 930b16bc37a672cceaa805d09eab083d07141f7f88feaee710c310c880a88e07 [2022-11-26 00:33:10,928 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:33:10,954 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:33:10,958 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:33:10,959 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:33:10,960 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:33:10,961 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9544fc1e-2310-4b8e-b28c-e0e1e56408dd/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c [2022-11-26 00:33:14,095 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:33:14,646 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:33:14,647 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9544fc1e-2310-4b8e-b28c-e0e1e56408dd/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c [2022-11-26 00:33:14,679 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9544fc1e-2310-4b8e-b28c-e0e1e56408dd/bin/utaipan-ByfvJB40ur/data/43cbbe771/8302fba6f88b46548926ed8a61e4d485/FLAG79a8a18c9 [2022-11-26 00:33:14,698 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9544fc1e-2310-4b8e-b28c-e0e1e56408dd/bin/utaipan-ByfvJB40ur/data/43cbbe771/8302fba6f88b46548926ed8a61e4d485 [2022-11-26 00:33:14,704 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:33:14,706 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:33:14,712 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:33:14,712 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:33:14,716 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:33:14,717 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:33:14" (1/1) ... [2022-11-26 00:33:14,719 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32f91172 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:33:14, skipping insertion in model container [2022-11-26 00:33:14,719 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:33:14" (1/1) ... [2022-11-26 00:33:14,728 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:33:14,876 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:33:15,528 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_9544fc1e-2310-4b8e-b28c-e0e1e56408dd/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[37686,37699] [2022-11-26 00:33:15,632 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_9544fc1e-2310-4b8e-b28c-e0e1e56408dd/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[53661,53674] [2022-11-26 00:33:15,674 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_9544fc1e-2310-4b8e-b28c-e0e1e56408dd/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[61658,61671] [2022-11-26 00:33:15,699 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9544fc1e-2310-4b8e-b28c-e0e1e56408dd/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[65640,65653] [2022-11-26 00:33:15,724 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_9544fc1e-2310-4b8e-b28c-e0e1e56408dd/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[69487,69500] [2022-11-26 00:33:15,793 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_9544fc1e-2310-4b8e-b28c-e0e1e56408dd/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[86510,86523] [2022-11-26 00:33:15,821 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_9544fc1e-2310-4b8e-b28c-e0e1e56408dd/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[94544,94557] [2022-11-26 00:33:15,836 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_9544fc1e-2310-4b8e-b28c-e0e1e56408dd/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[98563,98576] [2022-11-26 00:33:15,850 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_9544fc1e-2310-4b8e-b28c-e0e1e56408dd/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[102447,102460] [2022-11-26 00:33:15,873 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_9544fc1e-2310-4b8e-b28c-e0e1e56408dd/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[106961,106974] [2022-11-26 00:33:15,887 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_9544fc1e-2310-4b8e-b28c-e0e1e56408dd/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[110869,110882] [2022-11-26 00:33:15,905 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_9544fc1e-2310-4b8e-b28c-e0e1e56408dd/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[114888,114901] [2022-11-26 00:33:15,922 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_9544fc1e-2310-4b8e-b28c-e0e1e56408dd/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[118772,118785] [2022-11-26 00:33:15,940 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_9544fc1e-2310-4b8e-b28c-e0e1e56408dd/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[122907,122920] [2022-11-26 00:33:15,957 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_9544fc1e-2310-4b8e-b28c-e0e1e56408dd/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[126958,126971] [2022-11-26 00:33:15,974 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_9544fc1e-2310-4b8e-b28c-e0e1e56408dd/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[130958,130971] [2022-11-26 00:33:16,041 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:33:16,059 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:33:16,294 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_9544fc1e-2310-4b8e-b28c-e0e1e56408dd/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[37686,37699] [2022-11-26 00:33:16,384 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_9544fc1e-2310-4b8e-b28c-e0e1e56408dd/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[53661,53674] [2022-11-26 00:33:16,411 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_9544fc1e-2310-4b8e-b28c-e0e1e56408dd/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[61658,61671] [2022-11-26 00:33:16,430 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_9544fc1e-2310-4b8e-b28c-e0e1e56408dd/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[65640,65653] [2022-11-26 00:33:16,443 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9544fc1e-2310-4b8e-b28c-e0e1e56408dd/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[69487,69500] [2022-11-26 00:33:16,504 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_9544fc1e-2310-4b8e-b28c-e0e1e56408dd/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[86510,86523] [2022-11-26 00:33:16,528 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_9544fc1e-2310-4b8e-b28c-e0e1e56408dd/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[94544,94557] [2022-11-26 00:33:16,543 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_9544fc1e-2310-4b8e-b28c-e0e1e56408dd/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[98563,98576] [2022-11-26 00:33:16,556 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_9544fc1e-2310-4b8e-b28c-e0e1e56408dd/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[102447,102460] [2022-11-26 00:33:16,613 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_9544fc1e-2310-4b8e-b28c-e0e1e56408dd/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[106961,106974] [2022-11-26 00:33:16,658 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_9544fc1e-2310-4b8e-b28c-e0e1e56408dd/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[110869,110882] [2022-11-26 00:33:16,682 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_9544fc1e-2310-4b8e-b28c-e0e1e56408dd/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[114888,114901] [2022-11-26 00:33:16,692 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_9544fc1e-2310-4b8e-b28c-e0e1e56408dd/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[118772,118785] [2022-11-26 00:33:16,706 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_9544fc1e-2310-4b8e-b28c-e0e1e56408dd/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[122907,122920] [2022-11-26 00:33:16,717 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_9544fc1e-2310-4b8e-b28c-e0e1e56408dd/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[126958,126971] [2022-11-26 00:33:16,727 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_9544fc1e-2310-4b8e-b28c-e0e1e56408dd/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[130958,130971] [2022-11-26 00:33:16,751 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:33:16,771 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:33:16,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:33:16 WrapperNode [2022-11-26 00:33:16,772 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:33:16,773 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:33:16,773 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:33:16,773 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:33:16,781 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:33:16" (1/1) ... [2022-11-26 00:33:16,809 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:33:16" (1/1) ... [2022-11-26 00:33:16,898 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 5834 [2022-11-26 00:33:16,898 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:33:16,899 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:33:16,899 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:33:16,899 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:33:16,908 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:33:16" (1/1) ... [2022-11-26 00:33:16,908 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:33:16" (1/1) ... [2022-11-26 00:33:16,919 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:33:16" (1/1) ... [2022-11-26 00:33:16,919 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:33:16" (1/1) ... [2022-11-26 00:33:16,956 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:33:16" (1/1) ... [2022-11-26 00:33:16,998 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:33:16" (1/1) ... [2022-11-26 00:33:17,018 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:33:16" (1/1) ... [2022-11-26 00:33:17,039 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:33:16" (1/1) ... [2022-11-26 00:33:17,069 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:33:17,070 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:33:17,070 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:33:17,070 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:33:17,071 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:33:16" (1/1) ... [2022-11-26 00:33:17,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:33:17,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9544fc1e-2310-4b8e-b28c-e0e1e56408dd/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:33:17,108 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9544fc1e-2310-4b8e-b28c-e0e1e56408dd/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:33:17,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9544fc1e-2310-4b8e-b28c-e0e1e56408dd/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:33:17,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:33:17,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:33:17,163 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:33:17,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:33:17,498 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:33:17,500 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:33:20,727 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:33:20,993 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:33:20,994 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-26 00:33:21,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:33:21 BoogieIcfgContainer [2022-11-26 00:33:21,001 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:33:21,005 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:33:21,006 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:33:21,010 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:33:21,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:33:14" (1/3) ... [2022-11-26 00:33:21,012 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@365d2743 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:33:21, skipping insertion in model container [2022-11-26 00:33:21,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:33:16" (2/3) ... [2022-11-26 00:33:21,014 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@365d2743 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:33:21, skipping insertion in model container [2022-11-26 00:33:21,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:33:21" (3/3) ... [2022-11-26 00:33:21,016 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.ufo.BOUNDED-10.pals.c.v+sep-reducer.c [2022-11-26 00:33:21,039 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:33:21,040 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-11-26 00:33:21,142 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:33:21,153 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;@31c0ba35, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:33:21,153 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-11-26 00:33:21,165 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) [2022-11-26 00:33:21,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-26 00:33:21,205 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:33:21,206 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:33:21,208 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)] === [2022-11-26 00:33:21,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:33:21,216 INFO L85 PathProgramCache]: Analyzing trace with hash -959725519, now seen corresponding path program 1 times [2022-11-26 00:33:21,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:33:21,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894925798] [2022-11-26 00:33:21,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:33:21,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:33:21,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:33:21,964 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 00:33:21,965 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:33:21,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894925798] [2022-11-26 00:33:21,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894925798] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:33:21,966 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:33:21,967 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:33:21,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574908451] [2022-11-26 00:33:21,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:33:21,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:33:21,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:33:22,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:33:22,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:33:22,013 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) [2022-11-26 00:33:23,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:33:23,224 INFO L93 Difference]: Finished difference Result 1365 states and 2339 transitions. [2022-11-26 00:33:23,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:33:23,226 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 [2022-11-26 00:33:23,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:33:23,252 INFO L225 Difference]: With dead ends: 1365 [2022-11-26 00:33:23,252 INFO L226 Difference]: Without dead ends: 788 [2022-11-26 00:33:23,261 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 [2022-11-26 00:33:23,268 INFO L413 NwaCegarLoop]: 778 mSDtfsCounter, 3906 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 564 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s 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 [2022-11-26 00:33:23,277 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] [2022-11-26 00:33:23,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 788 states. [2022-11-26 00:33:23,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 788 to 788. [2022-11-26 00:33:23,389 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) [2022-11-26 00:33:23,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 788 states to 788 states and 979 transitions. [2022-11-26 00:33:23,393 INFO L78 Accepts]: Start accepts. Automaton has 788 states and 979 transitions. Word has length 72 [2022-11-26 00:33:23,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:33:23,394 INFO L495 AbstractCegarLoop]: Abstraction has 788 states and 979 transitions. [2022-11-26 00:33:23,394 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) [2022-11-26 00:33:23,395 INFO L276 IsEmpty]: Start isEmpty. Operand 788 states and 979 transitions. [2022-11-26 00:33:23,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-26 00:33:23,397 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:33:23,397 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:33:23,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:33:23,398 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)] === [2022-11-26 00:33:23,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:33:23,399 INFO L85 PathProgramCache]: Analyzing trace with hash -968066446, now seen corresponding path program 1 times [2022-11-26 00:33:23,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:33:23,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411999277] [2022-11-26 00:33:23,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:33:23,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:33:23,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:33:23,677 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 00:33:23,678 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:33:23,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411999277] [2022-11-26 00:33:23,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411999277] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:33:23,680 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:33:23,680 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:33:23,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960594951] [2022-11-26 00:33:23,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:33:23,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:33:23,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:33:23,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:33:23,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:33:23,690 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) [2022-11-26 00:33:24,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:33:24,374 INFO L93 Difference]: Finished difference Result 1061 states and 1325 transitions. [2022-11-26 00:33:24,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:33:24,375 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 [2022-11-26 00:33:24,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:33:24,378 INFO L225 Difference]: With dead ends: 1061 [2022-11-26 00:33:24,378 INFO L226 Difference]: Without dead ends: 661 [2022-11-26 00:33:24,380 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 [2022-11-26 00:33:24,382 INFO L413 NwaCegarLoop]: 432 mSDtfsCounter, 2447 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2447 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-26 00:33:24,385 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2447 Valid, 436 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-26 00:33:24,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 661 states. [2022-11-26 00:33:24,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 661 to 661. [2022-11-26 00:33:24,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 661 states, 645 states have (on average 1.2883720930232558) internal successors, (831), 660 states have internal predecessors, (831), 0 states have call successors, (0), 0 states 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 00:33:24,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 831 transitions. [2022-11-26 00:33:24,432 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 831 transitions. Word has length 72 [2022-11-26 00:33:24,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:33:24,432 INFO L495 AbstractCegarLoop]: Abstraction has 661 states and 831 transitions. [2022-11-26 00:33:24,433 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) [2022-11-26 00:33:24,433 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 831 transitions. [2022-11-26 00:33:24,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-26 00:33:24,435 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:33:24,435 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:33:24,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-26 00:33:24,435 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)] === [2022-11-26 00:33:24,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:33:24,446 INFO L85 PathProgramCache]: Analyzing trace with hash -1526182328, now seen corresponding path program 1 times [2022-11-26 00:33:24,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:33:24,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977918879] [2022-11-26 00:33:24,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:33:24,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:33:24,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:33:24,726 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 00:33:24,726 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:33:24,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977918879] [2022-11-26 00:33:24,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977918879] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:33:24,727 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:33:24,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:33:24,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562119584] [2022-11-26 00:33:24,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:33:24,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:33:24,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:33:24,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:33:24,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:33:24,731 INFO L87 Difference]: Start difference. First operand 661 states and 831 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) [2022-11-26 00:33:25,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:33:25,193 INFO L93 Difference]: Finished difference Result 778 states and 957 transitions. [2022-11-26 00:33:25,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:33:25,194 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 [2022-11-26 00:33:25,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:33:25,198 INFO L225 Difference]: With dead ends: 778 [2022-11-26 00:33:25,198 INFO L226 Difference]: Without dead ends: 461 [2022-11-26 00:33:25,199 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 [2022-11-26 00:33:25,202 INFO L413 NwaCegarLoop]: 308 mSDtfsCounter, 1634 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1634 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:33:25,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1634 Valid, 336 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-26 00:33:25,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2022-11-26 00:33:25,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 461. [2022-11-26 00:33:25,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 461 states, 445 states have (on average 1.2853932584269663) internal successors, (572), 460 states have internal predecessors, (572), 0 states have call successors, (0), 0 states 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 00:33:25,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 572 transitions. [2022-11-26 00:33:25,248 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 572 transitions. Word has length 72 [2022-11-26 00:33:25,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:33:25,249 INFO L495 AbstractCegarLoop]: Abstraction has 461 states and 572 transitions. [2022-11-26 00:33:25,253 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) [2022-11-26 00:33:25,254 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 572 transitions. [2022-11-26 00:33:25,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-26 00:33:25,257 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:33:25,257 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:33:25,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-26 00:33:25,258 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)] === [2022-11-26 00:33:25,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:33:25,259 INFO L85 PathProgramCache]: Analyzing trace with hash 1953545306, now seen corresponding path program 1 times [2022-11-26 00:33:25,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:33:25,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910682361] [2022-11-26 00:33:25,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:33:25,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:33:25,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:33:25,505 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 00:33:25,505 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:33:25,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910682361] [2022-11-26 00:33:25,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910682361] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:33:25,506 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:33:25,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:33:25,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098953581] [2022-11-26 00:33:25,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:33:25,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:33:25,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:33:25,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:33:25,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:33:25,508 INFO L87 Difference]: Start difference. First operand 461 states and 572 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) [2022-11-26 00:33:25,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:33:25,857 INFO L93 Difference]: Finished difference Result 650 states and 805 transitions. [2022-11-26 00:33:25,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:33:25,858 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 [2022-11-26 00:33:25,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:33:25,861 INFO L225 Difference]: With dead ends: 650 [2022-11-26 00:33:25,861 INFO L226 Difference]: Without dead ends: 409 [2022-11-26 00:33:25,862 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 [2022-11-26 00:33:25,865 INFO L413 NwaCegarLoop]: 298 mSDtfsCounter, 1469 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1469 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:33:25,866 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1469 Valid, 310 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-26 00:33:25,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2022-11-26 00:33:25,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 409. [2022-11-26 00:33:25,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 393 states have (on average 1.2926208651399491) internal successors, (508), 408 states have internal predecessors, (508), 0 states have call successors, (0), 0 states 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 00:33:25,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 508 transitions. [2022-11-26 00:33:25,907 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 508 transitions. Word has length 74 [2022-11-26 00:33:25,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:33:25,910 INFO L495 AbstractCegarLoop]: Abstraction has 409 states and 508 transitions. [2022-11-26 00:33:25,910 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) [2022-11-26 00:33:25,910 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 508 transitions. [2022-11-26 00:33:25,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-26 00:33:25,911 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:33:25,912 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] [2022-11-26 00:33:25,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-26 00:33:25,912 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)] === [2022-11-26 00:33:25,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:33:25,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1983390979, now seen corresponding path program 1 times [2022-11-26 00:33:25,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:33:25,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814918948] [2022-11-26 00:33:25,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:33:25,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:33:26,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:33:26,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:33:26,123 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:33:26,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814918948] [2022-11-26 00:33:26,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814918948] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:33:26,124 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:33:26,124 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:33:26,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859974161] [2022-11-26 00:33:26,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:33:26,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:33:26,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:33:26,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:33:26,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:33:26,127 INFO L87 Difference]: Start difference. First operand 409 states and 508 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) [2022-11-26 00:33:26,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:33:26,538 INFO L93 Difference]: Finished difference Result 616 states and 767 transitions. [2022-11-26 00:33:26,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:33:26,539 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 [2022-11-26 00:33:26,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:33:26,541 INFO L225 Difference]: With dead ends: 616 [2022-11-26 00:33:26,541 INFO L226 Difference]: Without dead ends: 401 [2022-11-26 00:33:26,542 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 [2022-11-26 00:33:26,543 INFO L413 NwaCegarLoop]: 249 mSDtfsCounter, 1392 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1392 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:33:26,543 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1392 Valid, 285 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-26 00:33:26,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2022-11-26 00:33:26,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 401. [2022-11-26 00:33:26,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 385 states have (on average 1.2935064935064935) internal successors, (498), 400 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:33:26,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 498 transitions. [2022-11-26 00:33:26,589 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 498 transitions. Word has length 76 [2022-11-26 00:33:26,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:33:26,589 INFO L495 AbstractCegarLoop]: Abstraction has 401 states and 498 transitions. [2022-11-26 00:33:26,589 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) [2022-11-26 00:33:26,590 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 498 transitions. [2022-11-26 00:33:26,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-26 00:33:26,591 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:33:26,591 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:33:26,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-26 00:33:26,591 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)] === [2022-11-26 00:33:26,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:33:26,592 INFO L85 PathProgramCache]: Analyzing trace with hash 802660192, now seen corresponding path program 1 times [2022-11-26 00:33:26,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:33:26,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707752226] [2022-11-26 00:33:26,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:33:26,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:33:26,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:33:27,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:33:27,175 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:33:27,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707752226] [2022-11-26 00:33:27,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707752226] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:33:27,175 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:33:27,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-26 00:33:27,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865070861] [2022-11-26 00:33:27,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:33:27,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-26 00:33:27,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:33:27,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-26 00:33:27,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-26 00:33:27,178 INFO L87 Difference]: Start difference. First operand 401 states and 498 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) [2022-11-26 00:33:27,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:33:27,956 INFO L93 Difference]: Finished difference Result 757 states and 911 transitions. [2022-11-26 00:33:27,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-26 00:33:27,956 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 [2022-11-26 00:33:27,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:33:27,960 INFO L225 Difference]: With dead ends: 757 [2022-11-26 00:33:27,960 INFO L226 Difference]: Without dead ends: 549 [2022-11-26 00:33:27,961 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 [2022-11-26 00:33:27,962 INFO L413 NwaCegarLoop]: 263 mSDtfsCounter, 2268 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 576 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2268 SdHoareTripleChecker+Valid, 678 SdHoareTripleChecker+Invalid, 577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:33:27,963 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2268 Valid, 678 Invalid, 577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 576 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-26 00:33:27,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2022-11-26 00:33:28,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 401. [2022-11-26 00:33:28,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 385 states have (on average 1.290909090909091) internal successors, (497), 400 states have internal predecessors, (497), 0 states have call successors, (0), 0 states 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 00:33:28,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 497 transitions. [2022-11-26 00:33:28,038 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 497 transitions. Word has length 78 [2022-11-26 00:33:28,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:33:28,040 INFO L495 AbstractCegarLoop]: Abstraction has 401 states and 497 transitions. [2022-11-26 00:33:28,040 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) [2022-11-26 00:33:28,040 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 497 transitions. [2022-11-26 00:33:28,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-26 00:33:28,049 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:33:28,049 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:33:28,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-26 00:33:28,049 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)] === [2022-11-26 00:33:28,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:33:28,050 INFO L85 PathProgramCache]: Analyzing trace with hash 1668159008, now seen corresponding path program 1 times [2022-11-26 00:33:28,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:33:28,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815719167] [2022-11-26 00:33:28,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:33:28,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:33:28,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:33:28,469 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 00:33:28,470 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:33:28,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815719167] [2022-11-26 00:33:28,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815719167] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:33:28,470 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:33:28,470 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-26 00:33:28,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465957983] [2022-11-26 00:33:28,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:33:28,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-26 00:33:28,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:33:28,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-26 00:33:28,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:33:28,473 INFO L87 Difference]: Start difference. First operand 401 states and 497 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) [2022-11-26 00:33:29,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:33:29,668 INFO L93 Difference]: Finished difference Result 771 states and 965 transitions. [2022-11-26 00:33:29,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-26 00:33:29,669 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 [2022-11-26 00:33:29,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:33:29,672 INFO L225 Difference]: With dead ends: 771 [2022-11-26 00:33:29,672 INFO L226 Difference]: Without dead ends: 698 [2022-11-26 00:33:29,673 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 [2022-11-26 00:33:29,674 INFO L413 NwaCegarLoop]: 329 mSDtfsCounter, 2181 mSDsluCounter, 1046 mSDsCounter, 0 mSdLazyCounter, 1072 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2181 SdHoareTripleChecker+Valid, 1375 SdHoareTripleChecker+Invalid, 1076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1072 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-26 00:33:29,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2181 Valid, 1375 Invalid, 1076 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1072 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-26 00:33:29,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 698 states. [2022-11-26 00:33:29,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 698 to 401. [2022-11-26 00:33:29,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 385 states have (on average 1.2883116883116883) internal successors, (496), 400 states have internal predecessors, (496), 0 states have call successors, (0), 0 states 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 00:33:29,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 496 transitions. [2022-11-26 00:33:29,736 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 496 transitions. Word has length 78 [2022-11-26 00:33:29,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:33:29,737 INFO L495 AbstractCegarLoop]: Abstraction has 401 states and 496 transitions. [2022-11-26 00:33:29,737 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) [2022-11-26 00:33:29,737 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 496 transitions. [2022-11-26 00:33:29,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-26 00:33:29,742 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:33:29,742 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:33:29,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-26 00:33:29,743 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)] === [2022-11-26 00:33:29,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:33:29,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1675317728, now seen corresponding path program 1 times [2022-11-26 00:33:29,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:33:29,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038709080] [2022-11-26 00:33:29,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:33:29,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:33:29,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:33:30,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:33:30,211 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:33:30,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038709080] [2022-11-26 00:33:30,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038709080] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:33:30,212 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:33:30,212 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-26 00:33:30,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502904483] [2022-11-26 00:33:30,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:33:30,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-26 00:33:30,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:33:30,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-26 00:33:30,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:33:30,214 INFO L87 Difference]: Start difference. First operand 401 states and 496 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) [2022-11-26 00:33:31,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:33:31,586 INFO L93 Difference]: Finished difference Result 818 states and 1023 transitions. [2022-11-26 00:33:31,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:33:31,587 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 [2022-11-26 00:33:31,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:33:31,589 INFO L225 Difference]: With dead ends: 818 [2022-11-26 00:33:31,590 INFO L226 Difference]: Without dead ends: 702 [2022-11-26 00:33:31,591 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 [2022-11-26 00:33:31,593 INFO L413 NwaCegarLoop]: 506 mSDtfsCounter, 1928 mSDsluCounter, 1673 mSDsCounter, 0 mSdLazyCounter, 1364 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1928 SdHoareTripleChecker+Valid, 2179 SdHoareTripleChecker+Invalid, 1368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:33:31,594 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1928 Valid, 2179 Invalid, 1368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1364 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-26 00:33:31,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states. [2022-11-26 00:33:31,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 401. [2022-11-26 00:33:31,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 385 states have (on average 1.2857142857142858) internal successors, (495), 400 states have internal predecessors, (495), 0 states have call successors, (0), 0 states 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 00:33:31,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 495 transitions. [2022-11-26 00:33:31,666 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 495 transitions. Word has length 78 [2022-11-26 00:33:31,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:33:31,666 INFO L495 AbstractCegarLoop]: Abstraction has 401 states and 495 transitions. [2022-11-26 00:33:31,666 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) [2022-11-26 00:33:31,667 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 495 transitions. [2022-11-26 00:33:31,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-26 00:33:31,668 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:33:31,668 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:33:31,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-26 00:33:31,669 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)] === [2022-11-26 00:33:31,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:33:31,669 INFO L85 PathProgramCache]: Analyzing trace with hash 1605144151, now seen corresponding path program 1 times [2022-11-26 00:33:31,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:33:31,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653116316] [2022-11-26 00:33:31,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:33:31,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:33:31,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:33:32,089 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 00:33:32,089 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:33:32,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653116316] [2022-11-26 00:33:32,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653116316] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:33:32,090 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:33:32,090 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-26 00:33:32,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562723852] [2022-11-26 00:33:32,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:33:32,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-26 00:33:32,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:33:32,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-26 00:33:32,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:33:32,093 INFO L87 Difference]: Start difference. First operand 401 states and 495 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) [2022-11-26 00:33:33,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:33:33,346 INFO L93 Difference]: Finished difference Result 744 states and 922 transitions. [2022-11-26 00:33:33,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:33:33,347 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 [2022-11-26 00:33:33,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:33:33,350 INFO L225 Difference]: With dead ends: 744 [2022-11-26 00:33:33,350 INFO L226 Difference]: Without dead ends: 690 [2022-11-26 00:33:33,351 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 [2022-11-26 00:33:33,353 INFO L413 NwaCegarLoop]: 363 mSDtfsCounter, 1203 mSDsluCounter, 1447 mSDsCounter, 0 mSdLazyCounter, 1329 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1203 SdHoareTripleChecker+Valid, 1810 SdHoareTripleChecker+Invalid, 1333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-26 00:33:33,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1203 Valid, 1810 Invalid, 1333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1329 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-26 00:33:33,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2022-11-26 00:33:33,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 401. [2022-11-26 00:33:33,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 385 states have (on average 1.283116883116883) internal successors, (494), 400 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) [2022-11-26 00:33:33,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 494 transitions. [2022-11-26 00:33:33,423 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 494 transitions. Word has length 79 [2022-11-26 00:33:33,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:33:33,423 INFO L495 AbstractCegarLoop]: Abstraction has 401 states and 494 transitions. [2022-11-26 00:33:33,424 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) [2022-11-26 00:33:33,424 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 494 transitions. [2022-11-26 00:33:33,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-26 00:33:33,425 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:33:33,425 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:33:33,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-26 00:33:33,427 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)] === [2022-11-26 00:33:33,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:33:33,427 INFO L85 PathProgramCache]: Analyzing trace with hash 968830309, now seen corresponding path program 1 times [2022-11-26 00:33:33,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:33:33,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874322995] [2022-11-26 00:33:33,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:33:33,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:33:33,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:33:34,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:33:34,042 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:33:34,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874322995] [2022-11-26 00:33:34,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874322995] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:33:34,043 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:33:34,043 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-26 00:33:34,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722336569] [2022-11-26 00:33:34,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:33:34,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-26 00:33:34,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:33:34,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-26 00:33:34,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-11-26 00:33:34,045 INFO L87 Difference]: Start difference. First operand 401 states and 494 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) [2022-11-26 00:33:36,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:33:36,133 INFO L93 Difference]: Finished difference Result 885 states and 1102 transitions. [2022-11-26 00:33:36,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-26 00:33:36,133 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 [2022-11-26 00:33:36,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:33:36,136 INFO L225 Difference]: With dead ends: 885 [2022-11-26 00:33:36,136 INFO L226 Difference]: Without dead ends: 754 [2022-11-26 00:33:36,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=181, Invalid=521, Unknown=0, NotChecked=0, Total=702 [2022-11-26 00:33:36,138 INFO L413 NwaCegarLoop]: 509 mSDtfsCounter, 2003 mSDsluCounter, 1781 mSDsCounter, 0 mSdLazyCounter, 1782 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2003 SdHoareTripleChecker+Valid, 2290 SdHoareTripleChecker+Invalid, 1794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:33:36,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2003 Valid, 2290 Invalid, 1794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1782 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-26 00:33:36,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 754 states. [2022-11-26 00:33:36,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 754 to 401. [2022-11-26 00:33:36,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 385 states have (on average 1.2805194805194806) internal successors, (493), 400 states have internal predecessors, (493), 0 states have call successors, (0), 0 states 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 00:33:36,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 493 transitions. [2022-11-26 00:33:36,215 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 493 transitions. Word has length 80 [2022-11-26 00:33:36,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:33:36,216 INFO L495 AbstractCegarLoop]: Abstraction has 401 states and 493 transitions. [2022-11-26 00:33:36,216 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) [2022-11-26 00:33:36,216 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 493 transitions. [2022-11-26 00:33:36,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-26 00:33:36,218 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:33:36,218 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:33:36,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-26 00:33:36,218 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)] === [2022-11-26 00:33:36,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:33:36,219 INFO L85 PathProgramCache]: Analyzing trace with hash 1772365797, now seen corresponding path program 1 times [2022-11-26 00:33:36,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:33:36,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770503272] [2022-11-26 00:33:36,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:33:36,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:33:36,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:33:36,562 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 00:33:36,562 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:33:36,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770503272] [2022-11-26 00:33:36,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770503272] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:33:36,563 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:33:36,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-26 00:33:36,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879443209] [2022-11-26 00:33:36,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:33:36,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-26 00:33:36,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:33:36,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-26 00:33:36,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:33:36,565 INFO L87 Difference]: Start difference. First operand 401 states and 493 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) [2022-11-26 00:33:37,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:33:37,966 INFO L93 Difference]: Finished difference Result 780 states and 968 transitions. [2022-11-26 00:33:37,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-26 00:33:37,967 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 [2022-11-26 00:33:37,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:33:37,970 INFO L225 Difference]: With dead ends: 780 [2022-11-26 00:33:37,970 INFO L226 Difference]: Without dead ends: 698 [2022-11-26 00:33:37,971 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 [2022-11-26 00:33:37,972 INFO L413 NwaCegarLoop]: 475 mSDtfsCounter, 1201 mSDsluCounter, 1458 mSDsCounter, 0 mSdLazyCounter, 1390 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1201 SdHoareTripleChecker+Valid, 1933 SdHoareTripleChecker+Invalid, 1393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:33:37,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1201 Valid, 1933 Invalid, 1393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1390 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-26 00:33:37,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 698 states. [2022-11-26 00:33:38,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 698 to 401. [2022-11-26 00:33:38,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 385 states have (on average 1.277922077922078) internal successors, (492), 400 states have internal predecessors, (492), 0 states have call successors, (0), 0 states 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 00:33:38,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 492 transitions. [2022-11-26 00:33:38,069 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 492 transitions. Word has length 80 [2022-11-26 00:33:38,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:33:38,070 INFO L495 AbstractCegarLoop]: Abstraction has 401 states and 492 transitions. [2022-11-26 00:33:38,070 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) [2022-11-26 00:33:38,070 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 492 transitions. [2022-11-26 00:33:38,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-26 00:33:38,071 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:33:38,072 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:33:38,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-26 00:33:38,072 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)] === [2022-11-26 00:33:38,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:33:38,072 INFO L85 PathProgramCache]: Analyzing trace with hash -1109843867, now seen corresponding path program 1 times [2022-11-26 00:33:38,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:33:38,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676460500] [2022-11-26 00:33:38,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:33:38,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:33:38,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:33:38,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:33:38,425 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:33:38,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676460500] [2022-11-26 00:33:38,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676460500] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:33:38,425 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:33:38,425 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-26 00:33:38,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180367699] [2022-11-26 00:33:38,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:33:38,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-26 00:33:38,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:33:38,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-26 00:33:38,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:33:38,427 INFO L87 Difference]: Start difference. First operand 401 states and 492 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) [2022-11-26 00:33:39,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:33:39,589 INFO L93 Difference]: Finished difference Result 748 states and 922 transitions. [2022-11-26 00:33:39,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:33:39,589 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 [2022-11-26 00:33:39,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:33:39,592 INFO L225 Difference]: With dead ends: 748 [2022-11-26 00:33:39,592 INFO L226 Difference]: Without dead ends: 690 [2022-11-26 00:33:39,593 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 [2022-11-26 00:33:39,593 INFO L413 NwaCegarLoop]: 417 mSDtfsCounter, 1166 mSDsluCounter, 1373 mSDsCounter, 0 mSdLazyCounter, 1252 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1166 SdHoareTripleChecker+Valid, 1790 SdHoareTripleChecker+Invalid, 1256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-26 00:33:39,594 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1166 Valid, 1790 Invalid, 1256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1252 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-26 00:33:39,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2022-11-26 00:33:39,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 401. [2022-11-26 00:33:39,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 385 states have (on average 1.2753246753246754) internal successors, (491), 400 states have internal predecessors, (491), 0 states have call successors, (0), 0 states 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 00:33:39,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 491 transitions. [2022-11-26 00:33:39,675 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 491 transitions. Word has length 80 [2022-11-26 00:33:39,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:33:39,675 INFO L495 AbstractCegarLoop]: Abstraction has 401 states and 491 transitions. [2022-11-26 00:33:39,675 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) [2022-11-26 00:33:39,675 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 491 transitions. [2022-11-26 00:33:39,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-26 00:33:39,677 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:33:39,677 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:33:39,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-26 00:33:39,677 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)] === [2022-11-26 00:33:39,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:33:39,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1167764005, now seen corresponding path program 1 times [2022-11-26 00:33:39,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:33:39,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874049939] [2022-11-26 00:33:39,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:33:39,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:33:39,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:33:40,058 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 00:33:40,059 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:33:40,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874049939] [2022-11-26 00:33:40,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874049939] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:33:40,059 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:33:40,059 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-26 00:33:40,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286821426] [2022-11-26 00:33:40,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:33:40,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-26 00:33:40,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:33:40,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-26 00:33:40,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:33:40,061 INFO L87 Difference]: Start difference. First operand 401 states and 491 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) [2022-11-26 00:33:41,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:33:41,373 INFO L93 Difference]: Finished difference Result 748 states and 922 transitions. [2022-11-26 00:33:41,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:33:41,374 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 [2022-11-26 00:33:41,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:33:41,376 INFO L225 Difference]: With dead ends: 748 [2022-11-26 00:33:41,377 INFO L226 Difference]: Without dead ends: 690 [2022-11-26 00:33:41,377 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 [2022-11-26 00:33:41,380 INFO L413 NwaCegarLoop]: 416 mSDtfsCounter, 1641 mSDsluCounter, 1547 mSDsCounter, 0 mSdLazyCounter, 1373 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1641 SdHoareTripleChecker+Valid, 1963 SdHoareTripleChecker+Invalid, 1377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-26 00:33:41,380 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1641 Valid, 1963 Invalid, 1377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1373 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-26 00:33:41,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2022-11-26 00:33:41,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 401. [2022-11-26 00:33:41,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 385 states have (on average 1.2727272727272727) internal successors, (490), 400 states have internal predecessors, (490), 0 states have call successors, (0), 0 states 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 00:33:41,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 490 transitions. [2022-11-26 00:33:41,470 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 490 transitions. Word has length 80 [2022-11-26 00:33:41,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:33:41,470 INFO L495 AbstractCegarLoop]: Abstraction has 401 states and 490 transitions. [2022-11-26 00:33:41,471 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) [2022-11-26 00:33:41,471 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 490 transitions. [2022-11-26 00:33:41,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-26 00:33:41,472 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:33:41,472 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:33:41,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-26 00:33:41,473 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)] === [2022-11-26 00:33:41,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:33:41,473 INFO L85 PathProgramCache]: Analyzing trace with hash 845800069, now seen corresponding path program 1 times [2022-11-26 00:33:41,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:33:41,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945097078] [2022-11-26 00:33:41,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:33:41,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:33:41,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:33:42,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:33:42,215 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:33:42,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945097078] [2022-11-26 00:33:42,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945097078] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:33:42,215 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:33:42,216 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-26 00:33:42,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601583847] [2022-11-26 00:33:42,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:33:42,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-26 00:33:42,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:33:42,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-26 00:33:42,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-26 00:33:42,218 INFO L87 Difference]: Start difference. First operand 401 states and 490 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) [2022-11-26 00:33:45,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:33:45,045 INFO L93 Difference]: Finished difference Result 1100 states and 1382 transitions. [2022-11-26 00:33:45,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-26 00:33:45,046 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 [2022-11-26 00:33:45,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:33:45,049 INFO L225 Difference]: With dead ends: 1100 [2022-11-26 00:33:45,049 INFO L226 Difference]: Without dead ends: 1018 [2022-11-26 00:33:45,050 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2022-11-26 00:33:45,051 INFO L413 NwaCegarLoop]: 536 mSDtfsCounter, 3530 mSDsluCounter, 1665 mSDsCounter, 0 mSdLazyCounter, 1769 mSolverCounterSat, 135 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3530 SdHoareTripleChecker+Valid, 2201 SdHoareTripleChecker+Invalid, 1904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 1769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:33:45,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3530 Valid, 2201 Invalid, 1904 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 1769 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-26 00:33:45,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1018 states. [2022-11-26 00:33:45,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1018 to 406. [2022-11-26 00:33:45,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 390 states have (on average 1.2692307692307692) internal successors, (495), 405 states have internal predecessors, (495), 0 states have call successors, (0), 0 states 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 00:33:45,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 495 transitions. [2022-11-26 00:33:45,140 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 495 transitions. Word has length 80 [2022-11-26 00:33:45,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:33:45,140 INFO L495 AbstractCegarLoop]: Abstraction has 406 states and 495 transitions. [2022-11-26 00:33:45,140 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) [2022-11-26 00:33:45,140 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 495 transitions. [2022-11-26 00:33:45,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-26 00:33:45,142 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:33:45,142 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:33:45,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-26 00:33:45,142 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)] === [2022-11-26 00:33:45,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:33:45,143 INFO L85 PathProgramCache]: Analyzing trace with hash 319051941, now seen corresponding path program 1 times [2022-11-26 00:33:45,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:33:45,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726211353] [2022-11-26 00:33:45,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:33:45,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:33:45,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:33:45,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:33:45,444 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:33:45,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726211353] [2022-11-26 00:33:45,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726211353] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:33:45,445 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:33:45,445 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-26 00:33:45,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549582430] [2022-11-26 00:33:45,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:33:45,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-26 00:33:45,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:33:45,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-26 00:33:45,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:33:45,447 INFO L87 Difference]: Start difference. First operand 406 states and 495 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) [2022-11-26 00:33:46,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:33:46,740 INFO L93 Difference]: Finished difference Result 753 states and 925 transitions. [2022-11-26 00:33:46,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:33:46,740 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 [2022-11-26 00:33:46,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:33:46,744 INFO L225 Difference]: With dead ends: 753 [2022-11-26 00:33:46,744 INFO L226 Difference]: Without dead ends: 695 [2022-11-26 00:33:46,746 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 00:33:46,747 INFO L413 NwaCegarLoop]: 423 mSDtfsCounter, 1124 mSDsluCounter, 1491 mSDsCounter, 0 mSdLazyCounter, 1385 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1124 SdHoareTripleChecker+Valid, 1914 SdHoareTripleChecker+Invalid, 1390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-26 00:33:46,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1124 Valid, 1914 Invalid, 1390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1385 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-26 00:33:46,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 695 states. [2022-11-26 00:33:46,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 695 to 406. [2022-11-26 00:33:46,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 390 states have (on average 1.2666666666666666) internal successors, (494), 405 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) [2022-11-26 00:33:46,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 494 transitions. [2022-11-26 00:33:46,872 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 494 transitions. Word has length 80 [2022-11-26 00:33:46,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:33:46,872 INFO L495 AbstractCegarLoop]: Abstraction has 406 states and 494 transitions. [2022-11-26 00:33:46,873 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) [2022-11-26 00:33:46,873 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 494 transitions. [2022-11-26 00:33:46,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-26 00:33:46,874 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:33:46,874 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:33:46,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-26 00:33:46,875 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)] === [2022-11-26 00:33:46,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:33:46,875 INFO L85 PathProgramCache]: Analyzing trace with hash 436282523, now seen corresponding path program 1 times [2022-11-26 00:33:46,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:33:46,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230211339] [2022-11-26 00:33:46,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:33:46,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:33:46,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:33:47,257 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 00:33:47,257 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:33:47,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230211339] [2022-11-26 00:33:47,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230211339] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:33:47,257 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:33:47,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-26 00:33:47,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662443919] [2022-11-26 00:33:47,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:33:47,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-26 00:33:47,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:33:47,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-26 00:33:47,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:33:47,260 INFO L87 Difference]: Start difference. First operand 406 states and 494 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) [2022-11-26 00:33:48,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:33:48,587 INFO L93 Difference]: Finished difference Result 723 states and 880 transitions. [2022-11-26 00:33:48,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:33:48,588 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 [2022-11-26 00:33:48,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:33:48,590 INFO L225 Difference]: With dead ends: 723 [2022-11-26 00:33:48,590 INFO L226 Difference]: Without dead ends: 678 [2022-11-26 00:33:48,591 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 [2022-11-26 00:33:48,592 INFO L413 NwaCegarLoop]: 374 mSDtfsCounter, 1671 mSDsluCounter, 1428 mSDsCounter, 0 mSdLazyCounter, 1285 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1671 SdHoareTripleChecker+Valid, 1802 SdHoareTripleChecker+Invalid, 1289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-26 00:33:48,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1671 Valid, 1802 Invalid, 1289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1285 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-26 00:33:48,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2022-11-26 00:33:48,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 405. [2022-11-26 00:33:48,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 389 states have (on average 1.2647814910025708) internal successors, (492), 404 states have internal predecessors, (492), 0 states have call successors, (0), 0 states 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 00:33:48,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 492 transitions. [2022-11-26 00:33:48,723 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 492 transitions. Word has length 80 [2022-11-26 00:33:48,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:33:48,723 INFO L495 AbstractCegarLoop]: Abstraction has 405 states and 492 transitions. [2022-11-26 00:33:48,723 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) [2022-11-26 00:33:48,724 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 492 transitions. [2022-11-26 00:33:48,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-26 00:33:48,725 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:33:48,725 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:33:48,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-26 00:33:48,725 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)] === [2022-11-26 00:33:48,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:33:48,726 INFO L85 PathProgramCache]: Analyzing trace with hash 1402771346, now seen corresponding path program 1 times [2022-11-26 00:33:48,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:33:48,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106597625] [2022-11-26 00:33:48,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:33:48,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:33:48,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:33:49,111 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 00:33:49,111 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:33:49,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106597625] [2022-11-26 00:33:49,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106597625] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:33:49,112 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:33:49,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-26 00:33:49,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133444817] [2022-11-26 00:33:49,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:33:49,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-26 00:33:49,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:33:49,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-26 00:33:49,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:33:49,114 INFO L87 Difference]: Start difference. First operand 405 states and 492 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) [2022-11-26 00:33:50,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:33:50,546 INFO L93 Difference]: Finished difference Result 725 states and 881 transitions. [2022-11-26 00:33:50,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:33:50,547 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 [2022-11-26 00:33:50,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:33:50,549 INFO L225 Difference]: With dead ends: 725 [2022-11-26 00:33:50,550 INFO L226 Difference]: Without dead ends: 678 [2022-11-26 00:33:50,550 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 [2022-11-26 00:33:50,551 INFO L413 NwaCegarLoop]: 367 mSDtfsCounter, 1691 mSDsluCounter, 1414 mSDsCounter, 0 mSdLazyCounter, 1279 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1691 SdHoareTripleChecker+Valid, 1781 SdHoareTripleChecker+Invalid, 1283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-26 00:33:50,551 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1691 Valid, 1781 Invalid, 1283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1279 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-26 00:33:50,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2022-11-26 00:33:50,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 405. [2022-11-26 00:33:50,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 389 states have (on average 1.262210796915167) internal successors, (491), 404 states have internal predecessors, (491), 0 states have call successors, (0), 0 states 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 00:33:50,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 491 transitions. [2022-11-26 00:33:50,660 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 491 transitions. Word has length 81 [2022-11-26 00:33:50,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:33:50,661 INFO L495 AbstractCegarLoop]: Abstraction has 405 states and 491 transitions. [2022-11-26 00:33:50,661 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) [2022-11-26 00:33:50,661 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 491 transitions. [2022-11-26 00:33:50,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-26 00:33:50,663 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:33:50,663 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] [2022-11-26 00:33:50,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-26 00:33:50,663 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)] === [2022-11-26 00:33:50,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:33:50,664 INFO L85 PathProgramCache]: Analyzing trace with hash -737160558, now seen corresponding path program 1 times [2022-11-26 00:33:50,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:33:50,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420269682] [2022-11-26 00:33:50,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:33:50,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:33:50,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:33:50,977 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 00:33:50,977 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:33:50,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420269682] [2022-11-26 00:33:50,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420269682] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:33:50,978 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:33:50,979 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-26 00:33:50,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288698259] [2022-11-26 00:33:50,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:33:50,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-26 00:33:50,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:33:50,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-26 00:33:50,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:33:50,981 INFO L87 Difference]: Start difference. First operand 405 states and 491 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) [2022-11-26 00:33:52,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:33:52,350 INFO L93 Difference]: Finished difference Result 725 states and 880 transitions. [2022-11-26 00:33:52,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:33:52,351 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 [2022-11-26 00:33:52,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:33:52,354 INFO L225 Difference]: With dead ends: 725 [2022-11-26 00:33:52,354 INFO L226 Difference]: Without dead ends: 678 [2022-11-26 00:33:52,354 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 [2022-11-26 00:33:52,355 INFO L413 NwaCegarLoop]: 374 mSDtfsCounter, 1662 mSDsluCounter, 1427 mSDsCounter, 0 mSdLazyCounter, 1279 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1662 SdHoareTripleChecker+Valid, 1801 SdHoareTripleChecker+Invalid, 1283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-26 00:33:52,355 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1662 Valid, 1801 Invalid, 1283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1279 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-26 00:33:52,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2022-11-26 00:33:52,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 405. [2022-11-26 00:33:52,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 389 states have (on average 1.2596401028277635) internal successors, (490), 404 states have internal predecessors, (490), 0 states have call successors, (0), 0 states 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 00:33:52,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 490 transitions. [2022-11-26 00:33:52,449 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 490 transitions. Word has length 81 [2022-11-26 00:33:52,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:33:52,450 INFO L495 AbstractCegarLoop]: Abstraction has 405 states and 490 transitions. [2022-11-26 00:33:52,450 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) [2022-11-26 00:33:52,450 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 490 transitions. [2022-11-26 00:33:52,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-26 00:33:52,452 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:33:52,452 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] [2022-11-26 00:33:52,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-26 00:33:52,452 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)] === [2022-11-26 00:33:52,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:33:52,453 INFO L85 PathProgramCache]: Analyzing trace with hash -1997711831, now seen corresponding path program 1 times [2022-11-26 00:33:52,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:33:52,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665946280] [2022-11-26 00:33:52,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:33:52,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:33:52,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:33:52,703 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 00:33:52,704 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:33:52,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665946280] [2022-11-26 00:33:52,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665946280] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:33:52,704 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:33:52,704 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-26 00:33:52,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976117395] [2022-11-26 00:33:52,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:33:52,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-26 00:33:52,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:33:52,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-26 00:33:52,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:33:52,708 INFO L87 Difference]: Start difference. First operand 405 states and 490 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) [2022-11-26 00:33:54,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:33:54,073 INFO L93 Difference]: Finished difference Result 779 states and 959 transitions. [2022-11-26 00:33:54,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-26 00:33:54,073 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 [2022-11-26 00:33:54,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:33:54,075 INFO L225 Difference]: With dead ends: 779 [2022-11-26 00:33:54,075 INFO L226 Difference]: Without dead ends: 697 [2022-11-26 00:33:54,076 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 [2022-11-26 00:33:54,076 INFO L413 NwaCegarLoop]: 484 mSDtfsCounter, 1183 mSDsluCounter, 1397 mSDsCounter, 0 mSdLazyCounter, 1317 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1183 SdHoareTripleChecker+Valid, 1881 SdHoareTripleChecker+Invalid, 1321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-26 00:33:54,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1183 Valid, 1881 Invalid, 1321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1317 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-26 00:33:54,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2022-11-26 00:33:54,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 400. [2022-11-26 00:33:54,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 384 states have (on average 1.2604166666666667) internal successors, (484), 399 states have internal predecessors, (484), 0 states have call successors, (0), 0 states 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 00:33:54,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 484 transitions. [2022-11-26 00:33:54,171 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 484 transitions. Word has length 81 [2022-11-26 00:33:54,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:33:54,171 INFO L495 AbstractCegarLoop]: Abstraction has 400 states and 484 transitions. [2022-11-26 00:33:54,172 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) [2022-11-26 00:33:54,172 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 484 transitions. [2022-11-26 00:33:54,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-26 00:33:54,173 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:33:54,173 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:33:54,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-26 00:33:54,174 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)] === [2022-11-26 00:33:54,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:33:54,174 INFO L85 PathProgramCache]: Analyzing trace with hash 1762485042, now seen corresponding path program 1 times [2022-11-26 00:33:54,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:33:54,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742782362] [2022-11-26 00:33:54,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:33:54,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:33:54,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:33:54,476 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 00:33:54,477 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:33:54,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742782362] [2022-11-26 00:33:54,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742782362] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:33:54,477 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:33:54,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-26 00:33:54,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369730593] [2022-11-26 00:33:54,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:33:54,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-26 00:33:54,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:33:54,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-26 00:33:54,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:33:54,479 INFO L87 Difference]: Start difference. First operand 400 states and 484 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) [2022-11-26 00:33:55,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:33:55,853 INFO L93 Difference]: Finished difference Result 720 states and 873 transitions. [2022-11-26 00:33:55,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:33:55,854 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 [2022-11-26 00:33:55,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:33:55,856 INFO L225 Difference]: With dead ends: 720 [2022-11-26 00:33:55,856 INFO L226 Difference]: Without dead ends: 673 [2022-11-26 00:33:55,857 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 [2022-11-26 00:33:55,857 INFO L413 NwaCegarLoop]: 409 mSDtfsCounter, 1653 mSDsluCounter, 1482 mSDsCounter, 0 mSdLazyCounter, 1342 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1653 SdHoareTripleChecker+Valid, 1891 SdHoareTripleChecker+Invalid, 1345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-26 00:33:55,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1653 Valid, 1891 Invalid, 1345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1342 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-26 00:33:55,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673 states. [2022-11-26 00:33:55,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673 to 400. [2022-11-26 00:33:55,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 384 states have (on average 1.2578125) internal successors, (483), 399 states have internal predecessors, (483), 0 states have call successors, (0), 0 states 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 00:33:55,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 483 transitions. [2022-11-26 00:33:55,954 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 483 transitions. Word has length 81 [2022-11-26 00:33:55,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:33:55,954 INFO L495 AbstractCegarLoop]: Abstraction has 400 states and 483 transitions. [2022-11-26 00:33:55,954 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) [2022-11-26 00:33:55,954 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 483 transitions. [2022-11-26 00:33:55,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-26 00:33:55,955 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:33:55,956 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:33:55,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-26 00:33:55,956 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)] === [2022-11-26 00:33:55,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:33:55,957 INFO L85 PathProgramCache]: Analyzing trace with hash -818292174, now seen corresponding path program 1 times [2022-11-26 00:33:55,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:33:55,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841387141] [2022-11-26 00:33:55,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:33:55,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:33:55,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:33:56,216 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 00:33:56,217 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:33:56,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841387141] [2022-11-26 00:33:56,217 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841387141] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:33:56,217 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:33:56,217 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-26 00:33:56,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570865342] [2022-11-26 00:33:56,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:33:56,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-26 00:33:56,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:33:56,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-26 00:33:56,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:33:56,219 INFO L87 Difference]: Start difference. First operand 400 states and 483 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) [2022-11-26 00:33:57,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:33:57,473 INFO L93 Difference]: Finished difference Result 720 states and 872 transitions. [2022-11-26 00:33:57,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-26 00:33:57,473 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 [2022-11-26 00:33:57,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:33:57,476 INFO L225 Difference]: With dead ends: 720 [2022-11-26 00:33:57,476 INFO L226 Difference]: Without dead ends: 673 [2022-11-26 00:33:57,477 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 [2022-11-26 00:33:57,478 INFO L413 NwaCegarLoop]: 378 mSDtfsCounter, 1295 mSDsluCounter, 1125 mSDsCounter, 0 mSdLazyCounter, 1132 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1295 SdHoareTripleChecker+Valid, 1503 SdHoareTripleChecker+Invalid, 1136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-26 00:33:57,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1295 Valid, 1503 Invalid, 1136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1132 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-26 00:33:57,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673 states. [2022-11-26 00:33:57,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673 to 400. [2022-11-26 00:33:57,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 384 states have (on average 1.2552083333333333) internal successors, (482), 399 states have internal predecessors, (482), 0 states have call successors, (0), 0 states 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 00:33:57,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 482 transitions. [2022-11-26 00:33:57,644 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 482 transitions. Word has length 81 [2022-11-26 00:33:57,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:33:57,645 INFO L495 AbstractCegarLoop]: Abstraction has 400 states and 482 transitions. [2022-11-26 00:33:57,645 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) [2022-11-26 00:33:57,645 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 482 transitions. [2022-11-26 00:33:57,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-26 00:33:57,646 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:33:57,646 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:33:57,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-26 00:33:57,649 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)] === [2022-11-26 00:33:57,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:33:57,650 INFO L85 PathProgramCache]: Analyzing trace with hash -1416899414, now seen corresponding path program 1 times [2022-11-26 00:33:57,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:33:57,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513787141] [2022-11-26 00:33:57,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:33:57,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:33:57,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:33:57,961 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 00:33:57,962 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:33:57,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513787141] [2022-11-26 00:33:57,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513787141] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:33:57,962 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:33:57,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-26 00:33:57,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992259430] [2022-11-26 00:33:57,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:33:57,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-26 00:33:57,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:33:57,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-26 00:33:57,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:33:57,964 INFO L87 Difference]: Start difference. First operand 400 states and 482 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) [2022-11-26 00:33:59,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:33:59,303 INFO L93 Difference]: Finished difference Result 679 states and 815 transitions. [2022-11-26 00:33:59,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:33:59,304 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 [2022-11-26 00:33:59,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:33:59,307 INFO L225 Difference]: With dead ends: 679 [2022-11-26 00:33:59,307 INFO L226 Difference]: Without dead ends: 673 [2022-11-26 00:33:59,307 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 [2022-11-26 00:33:59,308 INFO L413 NwaCegarLoop]: 378 mSDtfsCounter, 1652 mSDsluCounter, 1439 mSDsCounter, 0 mSdLazyCounter, 1260 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1652 SdHoareTripleChecker+Valid, 1817 SdHoareTripleChecker+Invalid, 1264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-26 00:33:59,308 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1652 Valid, 1817 Invalid, 1264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1260 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-26 00:33:59,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673 states. [2022-11-26 00:33:59,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673 to 400. [2022-11-26 00:33:59,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 384 states have (on average 1.2526041666666667) internal successors, (481), 399 states have internal predecessors, (481), 0 states have call successors, (0), 0 states 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 00:33:59,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 481 transitions. [2022-11-26 00:33:59,485 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 481 transitions. Word has length 82 [2022-11-26 00:33:59,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:33:59,485 INFO L495 AbstractCegarLoop]: Abstraction has 400 states and 481 transitions. [2022-11-26 00:33:59,485 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) [2022-11-26 00:33:59,486 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 481 transitions. [2022-11-26 00:33:59,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-26 00:33:59,487 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:33:59,487 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:33:59,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-26 00:33:59,487 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)] === [2022-11-26 00:33:59,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:33:59,488 INFO L85 PathProgramCache]: Analyzing trace with hash 110550506, now seen corresponding path program 1 times [2022-11-26 00:33:59,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:33:59,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725739925] [2022-11-26 00:33:59,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:33:59,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:33:59,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:33:59,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:33:59,773 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:33:59,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725739925] [2022-11-26 00:33:59,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725739925] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:33:59,774 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:33:59,774 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-26 00:33:59,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570569141] [2022-11-26 00:33:59,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:33:59,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-26 00:33:59,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:33:59,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-26 00:33:59,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:33:59,776 INFO L87 Difference]: Start difference. First operand 400 states and 481 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) [2022-11-26 00:34:01,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:34:01,069 INFO L93 Difference]: Finished difference Result 708 states and 855 transitions. [2022-11-26 00:34:01,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:34:01,070 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 [2022-11-26 00:34:01,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:34:01,072 INFO L225 Difference]: With dead ends: 708 [2022-11-26 00:34:01,072 INFO L226 Difference]: Without dead ends: 689 [2022-11-26 00:34:01,073 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 00:34:01,073 INFO L413 NwaCegarLoop]: 465 mSDtfsCounter, 1539 mSDsluCounter, 1281 mSDsCounter, 0 mSdLazyCounter, 1182 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1539 SdHoareTripleChecker+Valid, 1746 SdHoareTripleChecker+Invalid, 1186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-26 00:34:01,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1539 Valid, 1746 Invalid, 1186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1182 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-26 00:34:01,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 689 states. [2022-11-26 00:34:01,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 689 to 400. [2022-11-26 00:34:01,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 384 states have (on average 1.25) internal successors, (480), 399 states have internal predecessors, (480), 0 states have call successors, (0), 0 states 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 00:34:01,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 480 transitions. [2022-11-26 00:34:01,186 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 480 transitions. Word has length 82 [2022-11-26 00:34:01,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:34:01,186 INFO L495 AbstractCegarLoop]: Abstraction has 400 states and 480 transitions. [2022-11-26 00:34:01,186 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) [2022-11-26 00:34:01,186 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 480 transitions. [2022-11-26 00:34:01,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-26 00:34:01,187 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:34:01,187 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:34:01,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-26 00:34:01,187 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)] === [2022-11-26 00:34:01,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:34:01,188 INFO L85 PathProgramCache]: Analyzing trace with hash -534325398, now seen corresponding path program 1 times [2022-11-26 00:34:01,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:34:01,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558706430] [2022-11-26 00:34:01,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:34:01,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:34:01,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:34:01,442 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 00:34:01,443 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:34:01,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558706430] [2022-11-26 00:34:01,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558706430] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:34:01,443 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:34:01,443 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-26 00:34:01,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328575087] [2022-11-26 00:34:01,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:34:01,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-26 00:34:01,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:34:01,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-26 00:34:01,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:34:01,446 INFO L87 Difference]: Start difference. First operand 400 states and 480 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) [2022-11-26 00:34:02,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:34:02,760 INFO L93 Difference]: Finished difference Result 679 states and 813 transitions. [2022-11-26 00:34:02,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-26 00:34:02,761 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 [2022-11-26 00:34:02,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:34:02,763 INFO L225 Difference]: With dead ends: 679 [2022-11-26 00:34:02,763 INFO L226 Difference]: Without dead ends: 673 [2022-11-26 00:34:02,764 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 [2022-11-26 00:34:02,764 INFO L413 NwaCegarLoop]: 392 mSDtfsCounter, 1841 mSDsluCounter, 1164 mSDsCounter, 0 mSdLazyCounter, 1140 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1841 SdHoareTripleChecker+Valid, 1556 SdHoareTripleChecker+Invalid, 1144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-26 00:34:02,764 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1841 Valid, 1556 Invalid, 1144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1140 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-26 00:34:02,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673 states. [2022-11-26 00:34:02,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673 to 400. [2022-11-26 00:34:02,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 384 states have (on average 1.2473958333333333) internal successors, (479), 399 states have internal predecessors, (479), 0 states have call successors, (0), 0 states 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 00:34:02,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 479 transitions. [2022-11-26 00:34:02,895 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 479 transitions. Word has length 82 [2022-11-26 00:34:02,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:34:02,895 INFO L495 AbstractCegarLoop]: Abstraction has 400 states and 479 transitions. [2022-11-26 00:34:02,896 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) [2022-11-26 00:34:02,896 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 479 transitions. [2022-11-26 00:34:02,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-26 00:34:02,896 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:34:02,897 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:34:02,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-26 00:34:02,897 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)] === [2022-11-26 00:34:02,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:34:02,897 INFO L85 PathProgramCache]: Analyzing trace with hash -1378881558, now seen corresponding path program 1 times [2022-11-26 00:34:02,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:34:02,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081434865] [2022-11-26 00:34:02,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:34:02,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:34:02,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:34:03,205 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 00:34:03,205 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:34:03,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081434865] [2022-11-26 00:34:03,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081434865] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:34:03,206 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:34:03,206 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-26 00:34:03,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421419354] [2022-11-26 00:34:03,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:34:03,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-26 00:34:03,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:34:03,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-26 00:34:03,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:34:03,208 INFO L87 Difference]: Start difference. First operand 400 states and 479 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) [2022-11-26 00:34:04,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:34:04,553 INFO L93 Difference]: Finished difference Result 723 states and 869 transitions. [2022-11-26 00:34:04,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:34:04,554 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 [2022-11-26 00:34:04,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:34:04,556 INFO L225 Difference]: With dead ends: 723 [2022-11-26 00:34:04,556 INFO L226 Difference]: Without dead ends: 673 [2022-11-26 00:34:04,557 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 [2022-11-26 00:34:04,557 INFO L413 NwaCegarLoop]: 399 mSDtfsCounter, 1629 mSDsluCounter, 1483 mSDsCounter, 0 mSdLazyCounter, 1262 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1629 SdHoareTripleChecker+Valid, 1882 SdHoareTripleChecker+Invalid, 1266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-26 00:34:04,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1629 Valid, 1882 Invalid, 1266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1262 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-26 00:34:04,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673 states. [2022-11-26 00:34:04,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673 to 400. [2022-11-26 00:34:04,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 384 states have (on average 1.2447916666666667) internal successors, (478), 399 states have internal predecessors, (478), 0 states have call successors, (0), 0 states 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 00:34:04,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 478 transitions. [2022-11-26 00:34:04,671 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 478 transitions. Word has length 82 [2022-11-26 00:34:04,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:34:04,672 INFO L495 AbstractCegarLoop]: Abstraction has 400 states and 478 transitions. [2022-11-26 00:34:04,672 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) [2022-11-26 00:34:04,672 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 478 transitions. [2022-11-26 00:34:04,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-26 00:34:04,673 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:34:04,673 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:34:04,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-26 00:34:04,673 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)] === [2022-11-26 00:34:04,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:34:04,674 INFO L85 PathProgramCache]: Analyzing trace with hash 148568362, now seen corresponding path program 1 times [2022-11-26 00:34:04,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:34:04,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212233113] [2022-11-26 00:34:04,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:34:04,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:34:04,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:34:04,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:34:04,948 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:34:04,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212233113] [2022-11-26 00:34:04,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212233113] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:34:04,949 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:34:04,949 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-26 00:34:04,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969080197] [2022-11-26 00:34:04,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:34:04,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-26 00:34:04,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:34:04,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-26 00:34:04,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:34:04,952 INFO L87 Difference]: Start difference. First operand 400 states and 478 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) [2022-11-26 00:34:06,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:34:06,279 INFO L93 Difference]: Finished difference Result 752 states and 909 transitions. [2022-11-26 00:34:06,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:34:06,280 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 [2022-11-26 00:34:06,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:34:06,282 INFO L225 Difference]: With dead ends: 752 [2022-11-26 00:34:06,283 INFO L226 Difference]: Without dead ends: 689 [2022-11-26 00:34:06,283 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 [2022-11-26 00:34:06,284 INFO L413 NwaCegarLoop]: 469 mSDtfsCounter, 1132 mSDsluCounter, 1481 mSDsCounter, 0 mSdLazyCounter, 1230 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1132 SdHoareTripleChecker+Valid, 1950 SdHoareTripleChecker+Invalid, 1234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-26 00:34:06,286 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1132 Valid, 1950 Invalid, 1234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1230 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-26 00:34:06,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 689 states. [2022-11-26 00:34:06,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 689 to 400. [2022-11-26 00:34:06,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 384 states have (on average 1.2421875) internal successors, (477), 399 states have internal predecessors, (477), 0 states have call successors, (0), 0 states 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 00:34:06,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 477 transitions. [2022-11-26 00:34:06,454 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 477 transitions. Word has length 82 [2022-11-26 00:34:06,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:34:06,454 INFO L495 AbstractCegarLoop]: Abstraction has 400 states and 477 transitions. [2022-11-26 00:34:06,455 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) [2022-11-26 00:34:06,455 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 477 transitions. [2022-11-26 00:34:06,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-26 00:34:06,456 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:34:06,456 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:34:06,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-26 00:34:06,457 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)] === [2022-11-26 00:34:06,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:34:06,457 INFO L85 PathProgramCache]: Analyzing trace with hash -1321164118, now seen corresponding path program 1 times [2022-11-26 00:34:06,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:34:06,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331340318] [2022-11-26 00:34:06,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:34:06,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:34:06,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:34:07,004 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 00:34:07,005 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:34:07,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331340318] [2022-11-26 00:34:07,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331340318] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:34:07,005 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:34:07,005 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-26 00:34:07,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147042969] [2022-11-26 00:34:07,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:34:07,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-26 00:34:07,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:34:07,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-26 00:34:07,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-26 00:34:07,006 INFO L87 Difference]: Start difference. First operand 400 states and 477 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) [2022-11-26 00:34:09,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:34:09,935 INFO L93 Difference]: Finished difference Result 1104 states and 1365 transitions. [2022-11-26 00:34:09,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-26 00:34:09,936 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 [2022-11-26 00:34:09,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:34:09,939 INFO L225 Difference]: With dead ends: 1104 [2022-11-26 00:34:09,939 INFO L226 Difference]: Without dead ends: 1016 [2022-11-26 00:34:09,940 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 [2022-11-26 00:34:09,944 INFO L413 NwaCegarLoop]: 547 mSDtfsCounter, 3249 mSDsluCounter, 1691 mSDsCounter, 0 mSdLazyCounter, 1765 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3249 SdHoareTripleChecker+Valid, 2238 SdHoareTripleChecker+Invalid, 1888 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 1765 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:34:09,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3249 Valid, 2238 Invalid, 1888 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 1765 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-26 00:34:09,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1016 states. [2022-11-26 00:34:10,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1016 to 405. [2022-11-26 00:34:10,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 389 states have (on average 1.2390745501285347) internal successors, (482), 404 states have internal predecessors, (482), 0 states have call successors, (0), 0 states 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 00:34:10,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 482 transitions. [2022-11-26 00:34:10,112 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 482 transitions. Word has length 82 [2022-11-26 00:34:10,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:34:10,112 INFO L495 AbstractCegarLoop]: Abstraction has 405 states and 482 transitions. [2022-11-26 00:34:10,113 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) [2022-11-26 00:34:10,113 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 482 transitions. [2022-11-26 00:34:10,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-26 00:34:10,114 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:34:10,114 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:34:10,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-26 00:34:10,114 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)] === [2022-11-26 00:34:10,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:34:10,116 INFO L85 PathProgramCache]: Analyzing trace with hash -378154710, now seen corresponding path program 1 times [2022-11-26 00:34:10,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:34:10,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236795240] [2022-11-26 00:34:10,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:34:10,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:34:10,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:34:10,418 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 00:34:10,419 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:34:10,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236795240] [2022-11-26 00:34:10,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236795240] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:34:10,419 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:34:10,419 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-26 00:34:10,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542681270] [2022-11-26 00:34:10,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:34:10,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-26 00:34:10,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:34:10,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-26 00:34:10,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:34:10,421 INFO L87 Difference]: Start difference. First operand 405 states and 482 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) [2022-11-26 00:34:11,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:34:11,860 INFO L93 Difference]: Finished difference Result 728 states and 872 transitions. [2022-11-26 00:34:11,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:34:11,861 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 [2022-11-26 00:34:11,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:34:11,863 INFO L225 Difference]: With dead ends: 728 [2022-11-26 00:34:11,863 INFO L226 Difference]: Without dead ends: 678 [2022-11-26 00:34:11,864 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 [2022-11-26 00:34:11,864 INFO L413 NwaCegarLoop]: 418 mSDtfsCounter, 1620 mSDsluCounter, 1527 mSDsCounter, 0 mSdLazyCounter, 1274 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1620 SdHoareTripleChecker+Valid, 1945 SdHoareTripleChecker+Invalid, 1278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-26 00:34:11,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1620 Valid, 1945 Invalid, 1278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1274 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-26 00:34:11,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2022-11-26 00:34:12,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 405. [2022-11-26 00:34:12,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 389 states have (on average 1.236503856041131) internal successors, (481), 404 states have internal predecessors, (481), 0 states have call successors, (0), 0 states 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 00:34:12,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 481 transitions. [2022-11-26 00:34:12,012 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 481 transitions. Word has length 82 [2022-11-26 00:34:12,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:34:12,012 INFO L495 AbstractCegarLoop]: Abstraction has 405 states and 481 transitions. [2022-11-26 00:34:12,013 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) [2022-11-26 00:34:12,013 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 481 transitions. [2022-11-26 00:34:12,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-26 00:34:12,014 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:34:12,014 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:34:12,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-26 00:34:12,014 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)] === [2022-11-26 00:34:12,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:34:12,015 INFO L85 PathProgramCache]: Analyzing trace with hash 637597674, now seen corresponding path program 1 times [2022-11-26 00:34:12,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:34:12,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532539445] [2022-11-26 00:34:12,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:34:12,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:34:12,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:34:12,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:34:12,300 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:34:12,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532539445] [2022-11-26 00:34:12,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532539445] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:34:12,300 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:34:12,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-26 00:34:12,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119845807] [2022-11-26 00:34:12,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:34:12,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-26 00:34:12,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:34:12,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-26 00:34:12,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:34:12,302 INFO L87 Difference]: Start difference. First operand 405 states and 481 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) [2022-11-26 00:34:13,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:34:13,662 INFO L93 Difference]: Finished difference Result 757 states and 911 transitions. [2022-11-26 00:34:13,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:34:13,662 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 [2022-11-26 00:34:13,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:34:13,665 INFO L225 Difference]: With dead ends: 757 [2022-11-26 00:34:13,665 INFO L226 Difference]: Without dead ends: 694 [2022-11-26 00:34:13,665 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 00:34:13,666 INFO L413 NwaCegarLoop]: 467 mSDtfsCounter, 1526 mSDsluCounter, 1293 mSDsCounter, 0 mSdLazyCounter, 1154 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1526 SdHoareTripleChecker+Valid, 1760 SdHoareTripleChecker+Invalid, 1158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-26 00:34:13,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1526 Valid, 1760 Invalid, 1158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1154 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-26 00:34:13,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 694 states. [2022-11-26 00:34:13,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 694 to 405. [2022-11-26 00:34:13,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 389 states have (on average 1.2339331619537275) internal successors, (480), 404 states have internal predecessors, (480), 0 states have call successors, (0), 0 states 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 00:34:13,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 480 transitions. [2022-11-26 00:34:13,798 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 480 transitions. Word has length 82 [2022-11-26 00:34:13,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:34:13,799 INFO L495 AbstractCegarLoop]: Abstraction has 405 states and 480 transitions. [2022-11-26 00:34:13,799 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) [2022-11-26 00:34:13,799 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 480 transitions. [2022-11-26 00:34:13,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-26 00:34:13,800 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:34:13,800 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:34:13,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-26 00:34:13,801 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)] === [2022-11-26 00:34:13,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:34:13,801 INFO L85 PathProgramCache]: Analyzing trace with hash -586374390, now seen corresponding path program 1 times [2022-11-26 00:34:13,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:34:13,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485770062] [2022-11-26 00:34:13,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:34:13,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:34:13,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:34:14,264 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 00:34:14,264 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:34:14,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485770062] [2022-11-26 00:34:14,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485770062] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:34:14,265 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:34:14,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-26 00:34:14,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279670257] [2022-11-26 00:34:14,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:34:14,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-26 00:34:14,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:34:14,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-26 00:34:14,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-26 00:34:14,267 INFO L87 Difference]: Start difference. First operand 405 states and 480 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) [2022-11-26 00:34:17,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:34:17,000 INFO L93 Difference]: Finished difference Result 961 states and 1172 transitions. [2022-11-26 00:34:17,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-26 00:34:17,001 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 [2022-11-26 00:34:17,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:34:17,006 INFO L225 Difference]: With dead ends: 961 [2022-11-26 00:34:17,006 INFO L226 Difference]: Without dead ends: 911 [2022-11-26 00:34:17,007 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 [2022-11-26 00:34:17,007 INFO L413 NwaCegarLoop]: 425 mSDtfsCounter, 3287 mSDsluCounter, 1767 mSDsCounter, 0 mSdLazyCounter, 1630 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3287 SdHoareTripleChecker+Valid, 2192 SdHoareTripleChecker+Invalid, 1759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 1630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:34:17,007 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3287 Valid, 2192 Invalid, 1759 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 1630 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-26 00:34:17,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 911 states. [2022-11-26 00:34:17,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 911 to 410. [2022-11-26 00:34:17,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 394 states have (on average 1.2309644670050761) internal successors, (485), 409 states have internal predecessors, (485), 0 states have call successors, (0), 0 states 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 00:34:17,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 485 transitions. [2022-11-26 00:34:17,171 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 485 transitions. Word has length 82 [2022-11-26 00:34:17,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:34:17,172 INFO L495 AbstractCegarLoop]: Abstraction has 410 states and 485 transitions. [2022-11-26 00:34:17,172 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) [2022-11-26 00:34:17,172 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 485 transitions. [2022-11-26 00:34:17,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-26 00:34:17,173 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:34:17,173 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:34:17,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-26 00:34:17,174 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)] === [2022-11-26 00:34:17,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:34:17,174 INFO L85 PathProgramCache]: Analyzing trace with hash -1027878550, now seen corresponding path program 1 times [2022-11-26 00:34:17,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:34:17,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854915736] [2022-11-26 00:34:17,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:34:17,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:34:17,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:34:17,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:34:17,427 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:34:17,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854915736] [2022-11-26 00:34:17,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854915736] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:34:17,427 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:34:17,428 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-26 00:34:17,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319855626] [2022-11-26 00:34:17,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:34:17,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-26 00:34:17,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:34:17,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-26 00:34:17,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:34:17,429 INFO L87 Difference]: Start difference. First operand 410 states and 485 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) [2022-11-26 00:34:18,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:34:18,866 INFO L93 Difference]: Finished difference Result 684 states and 811 transitions. [2022-11-26 00:34:18,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-26 00:34:18,867 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 [2022-11-26 00:34:18,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:34:18,870 INFO L225 Difference]: With dead ends: 684 [2022-11-26 00:34:18,870 INFO L226 Difference]: Without dead ends: 678 [2022-11-26 00:34:18,870 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 [2022-11-26 00:34:18,871 INFO L413 NwaCegarLoop]: 417 mSDtfsCounter, 1740 mSDsluCounter, 1241 mSDsCounter, 0 mSdLazyCounter, 1154 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1740 SdHoareTripleChecker+Valid, 1658 SdHoareTripleChecker+Invalid, 1158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-26 00:34:18,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1740 Valid, 1658 Invalid, 1158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1154 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-26 00:34:18,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2022-11-26 00:34:19,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 410. [2022-11-26 00:34:19,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 394 states have (on average 1.2284263959390862) internal successors, (484), 409 states have internal predecessors, (484), 0 states have call successors, (0), 0 states 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 00:34:19,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 484 transitions. [2022-11-26 00:34:19,048 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 484 transitions. Word has length 82 [2022-11-26 00:34:19,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:34:19,048 INFO L495 AbstractCegarLoop]: Abstraction has 410 states and 484 transitions. [2022-11-26 00:34:19,049 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) [2022-11-26 00:34:19,049 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 484 transitions. [2022-11-26 00:34:19,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-26 00:34:19,050 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:34:19,050 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:34:19,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-26 00:34:19,050 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)] === [2022-11-26 00:34:19,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:34:19,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1377145907, now seen corresponding path program 1 times [2022-11-26 00:34:19,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:34:19,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122876117] [2022-11-26 00:34:19,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:34:19,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:34:19,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:34:19,707 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 00:34:19,707 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:34:19,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122876117] [2022-11-26 00:34:19,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122876117] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:34:19,707 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:34:19,707 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-26 00:34:19,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143609051] [2022-11-26 00:34:19,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:34:19,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-26 00:34:19,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:34:19,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-26 00:34:19,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-26 00:34:19,709 INFO L87 Difference]: Start difference. First operand 410 states and 484 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) [2022-11-26 00:34:21,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:34:21,311 INFO L93 Difference]: Finished difference Result 940 states and 1140 transitions. [2022-11-26 00:34:21,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:34:21,312 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 [2022-11-26 00:34:21,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:34:21,315 INFO L225 Difference]: With dead ends: 940 [2022-11-26 00:34:21,315 INFO L226 Difference]: Without dead ends: 826 [2022-11-26 00:34:21,316 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 [2022-11-26 00:34:21,316 INFO L413 NwaCegarLoop]: 674 mSDtfsCounter, 2726 mSDsluCounter, 2514 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2726 SdHoareTripleChecker+Valid, 3188 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:34:21,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2726 Valid, 3188 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-26 00:34:21,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 826 states. [2022-11-26 00:34:21,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 826 to 340. [2022-11-26 00:34:21,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 328 states have (on average 1.225609756097561) internal successors, (402), 339 states have internal predecessors, (402), 0 states have call successors, (0), 0 states 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 00:34:21,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 402 transitions. [2022-11-26 00:34:21,494 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 402 transitions. Word has length 83 [2022-11-26 00:34:21,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:34:21,494 INFO L495 AbstractCegarLoop]: Abstraction has 340 states and 402 transitions. [2022-11-26 00:34:21,494 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) [2022-11-26 00:34:21,494 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 402 transitions. [2022-11-26 00:34:21,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-26 00:34:21,495 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:34:21,496 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:34:21,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-11-26 00:34:21,496 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)] === [2022-11-26 00:34:21,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:34:21,497 INFO L85 PathProgramCache]: Analyzing trace with hash -1042213600, now seen corresponding path program 1 times [2022-11-26 00:34:21,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:34:21,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618721846] [2022-11-26 00:34:21,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:34:21,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:34:21,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:34:21,744 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 00:34:21,744 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:34:21,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618721846] [2022-11-26 00:34:21,744 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618721846] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:34:21,745 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:34:21,745 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-26 00:34:21,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006457614] [2022-11-26 00:34:21,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:34:21,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-26 00:34:21,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:34:21,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-26 00:34:21,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:34:21,749 INFO L87 Difference]: Start difference. First operand 340 states and 402 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) [2022-11-26 00:34:23,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:34:23,181 INFO L93 Difference]: Finished difference Result 725 states and 876 transitions. [2022-11-26 00:34:23,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-26 00:34:23,181 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 [2022-11-26 00:34:23,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:34:23,183 INFO L225 Difference]: With dead ends: 725 [2022-11-26 00:34:23,183 INFO L226 Difference]: Without dead ends: 637 [2022-11-26 00:34:23,184 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 [2022-11-26 00:34:23,184 INFO L413 NwaCegarLoop]: 422 mSDtfsCounter, 1022 mSDsluCounter, 1195 mSDsCounter, 0 mSdLazyCounter, 1070 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1022 SdHoareTripleChecker+Valid, 1617 SdHoareTripleChecker+Invalid, 1074 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1070 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-26 00:34:23,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1022 Valid, 1617 Invalid, 1074 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1070 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-26 00:34:23,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states. [2022-11-26 00:34:23,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 335. [2022-11-26 00:34:23,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 323 states have (on average 1.2260061919504643) internal successors, (396), 334 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:34:23,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 396 transitions. [2022-11-26 00:34:23,314 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 396 transitions. Word has length 83 [2022-11-26 00:34:23,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:34:23,315 INFO L495 AbstractCegarLoop]: Abstraction has 335 states and 396 transitions. [2022-11-26 00:34:23,315 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) [2022-11-26 00:34:23,315 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 396 transitions. [2022-11-26 00:34:23,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-26 00:34:23,316 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:34:23,316 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:34:23,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-11-26 00:34:23,317 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)] === [2022-11-26 00:34:23,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:34:23,317 INFO L85 PathProgramCache]: Analyzing trace with hash -199769875, now seen corresponding path program 1 times [2022-11-26 00:34:23,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:34:23,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681831935] [2022-11-26 00:34:23,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:34:23,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:34:23,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:34:23,965 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 00:34:23,965 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:34:23,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681831935] [2022-11-26 00:34:23,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681831935] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:34:23,966 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:34:23,966 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-26 00:34:23,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027381671] [2022-11-26 00:34:23,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:34:23,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-26 00:34:23,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:34:23,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-26 00:34:23,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-26 00:34:23,967 INFO L87 Difference]: Start difference. First operand 335 states and 396 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) [2022-11-26 00:34:26,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:34:26,010 INFO L93 Difference]: Finished difference Result 703 states and 853 transitions. [2022-11-26 00:34:26,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:34:26,011 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 [2022-11-26 00:34:26,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:34:26,014 INFO L225 Difference]: With dead ends: 703 [2022-11-26 00:34:26,014 INFO L226 Difference]: Without dead ends: 658 [2022-11-26 00:34:26,014 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 [2022-11-26 00:34:26,015 INFO L413 NwaCegarLoop]: 497 mSDtfsCounter, 1891 mSDsluCounter, 2374 mSDsCounter, 0 mSdLazyCounter, 974 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1891 SdHoareTripleChecker+Valid, 2871 SdHoareTripleChecker+Invalid, 974 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 974 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-26 00:34:26,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1891 Valid, 2871 Invalid, 974 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 974 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-26 00:34:26,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2022-11-26 00:34:26,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 334. [2022-11-26 00:34:26,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 322 states have (on average 1.2236024844720497) internal successors, (394), 333 states have internal predecessors, (394), 0 states have call successors, (0), 0 states 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 00:34:26,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 394 transitions. [2022-11-26 00:34:26,178 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 394 transitions. Word has length 83 [2022-11-26 00:34:26,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:34:26,178 INFO L495 AbstractCegarLoop]: Abstraction has 334 states and 394 transitions. [2022-11-26 00:34:26,179 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) [2022-11-26 00:34:26,179 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 394 transitions. [2022-11-26 00:34:26,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-26 00:34:26,180 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:34:26,180 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:34:26,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-11-26 00:34:26,180 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)] === [2022-11-26 00:34:26,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:34:26,181 INFO L85 PathProgramCache]: Analyzing trace with hash 1097921229, now seen corresponding path program 1 times [2022-11-26 00:34:26,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:34:26,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234250967] [2022-11-26 00:34:26,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:34:26,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:34:26,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:34:26,767 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 00:34:26,767 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:34:26,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234250967] [2022-11-26 00:34:26,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234250967] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:34:26,768 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:34:26,768 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-26 00:34:26,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386924242] [2022-11-26 00:34:26,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:34:26,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-26 00:34:26,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:34:26,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-26 00:34:26,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-26 00:34:26,770 INFO L87 Difference]: Start difference. First operand 334 states and 394 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) [2022-11-26 00:34:28,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:34:28,675 INFO L93 Difference]: Finished difference Result 702 states and 851 transitions. [2022-11-26 00:34:28,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:34:28,675 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 [2022-11-26 00:34:28,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:34:28,679 INFO L225 Difference]: With dead ends: 702 [2022-11-26 00:34:28,679 INFO L226 Difference]: Without dead ends: 657 [2022-11-26 00:34:28,679 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 [2022-11-26 00:34:28,679 INFO L413 NwaCegarLoop]: 530 mSDtfsCounter, 2231 mSDsluCounter, 2231 mSDsCounter, 0 mSdLazyCounter, 910 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2231 SdHoareTripleChecker+Valid, 2761 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 [2022-11-26 00:34:28,680 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2231 Valid, 2761 Invalid, 910 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 910 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-26 00:34:28,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 657 states. [2022-11-26 00:34:28,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 657 to 333. [2022-11-26 00:34:28,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 321 states have (on average 1.2211838006230529) internal successors, (392), 332 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:34:28,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 392 transitions. [2022-11-26 00:34:28,851 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 392 transitions. Word has length 83 [2022-11-26 00:34:28,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:34:28,851 INFO L495 AbstractCegarLoop]: Abstraction has 333 states and 392 transitions. [2022-11-26 00:34:28,852 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) [2022-11-26 00:34:28,852 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 392 transitions. [2022-11-26 00:34:28,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-26 00:34:28,853 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:34:28,853 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:34:28,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-11-26 00:34:28,853 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)] === [2022-11-26 00:34:28,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:34:28,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1397509459, now seen corresponding path program 1 times [2022-11-26 00:34:28,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:34:28,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403017425] [2022-11-26 00:34:28,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:34:28,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:34:28,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:34:29,475 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 00:34:29,475 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:34:29,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403017425] [2022-11-26 00:34:29,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403017425] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:34:29,476 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:34:29,476 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-26 00:34:29,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938873523] [2022-11-26 00:34:29,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:34:29,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-26 00:34:29,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:34:29,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-26 00:34:29,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-26 00:34:29,477 INFO L87 Difference]: Start difference. First operand 333 states and 392 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) [2022-11-26 00:34:31,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:34:31,821 INFO L93 Difference]: Finished difference Result 1101 states and 1340 transitions. [2022-11-26 00:34:31,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-26 00:34:31,821 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 [2022-11-26 00:34:31,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:34:31,827 INFO L225 Difference]: With dead ends: 1101 [2022-11-26 00:34:31,827 INFO L226 Difference]: Without dead ends: 1025 [2022-11-26 00:34:31,827 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 [2022-11-26 00:34:31,828 INFO L413 NwaCegarLoop]: 1016 mSDtfsCounter, 2283 mSDsluCounter, 5720 mSDsCounter, 0 mSdLazyCounter, 956 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2283 SdHoareTripleChecker+Valid, 6736 SdHoareTripleChecker+Invalid, 956 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 956 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-26 00:34:31,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2283 Valid, 6736 Invalid, 956 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 956 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-26 00:34:31,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1025 states. [2022-11-26 00:34:31,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1025 to 301. [2022-11-26 00:34:31,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 290 states have (on average 1.2137931034482758) internal successors, (352), 300 states have internal predecessors, (352), 0 states have call successors, (0), 0 states 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 00:34:31,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 352 transitions. [2022-11-26 00:34:31,980 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 352 transitions. Word has length 83 [2022-11-26 00:34:31,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:34:31,981 INFO L495 AbstractCegarLoop]: Abstraction has 301 states and 352 transitions. [2022-11-26 00:34:31,981 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) [2022-11-26 00:34:31,981 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 352 transitions. [2022-11-26 00:34:31,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-26 00:34:31,982 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:34:31,982 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:34:31,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-11-26 00:34:31,982 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)] === [2022-11-26 00:34:31,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:34:31,983 INFO L85 PathProgramCache]: Analyzing trace with hash 2096908269, now seen corresponding path program 1 times [2022-11-26 00:34:31,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:34:31,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371851161] [2022-11-26 00:34:31,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:34:31,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:34:32,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:34:32,563 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 00:34:32,563 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:34:32,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371851161] [2022-11-26 00:34:32,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371851161] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:34:32,564 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:34:32,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-26 00:34:32,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157181725] [2022-11-26 00:34:32,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:34:32,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-26 00:34:32,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:34:32,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-26 00:34:32,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-26 00:34:32,565 INFO L87 Difference]: Start difference. First operand 301 states and 352 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) [2022-11-26 00:34:34,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:34:34,152 INFO L93 Difference]: Finished difference Result 704 states and 854 transitions. [2022-11-26 00:34:34,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:34:34,152 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 [2022-11-26 00:34:34,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:34:34,155 INFO L225 Difference]: With dead ends: 704 [2022-11-26 00:34:34,155 INFO L226 Difference]: Without dead ends: 605 [2022-11-26 00:34:34,159 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 [2022-11-26 00:34:34,160 INFO L413 NwaCegarLoop]: 587 mSDtfsCounter, 1737 mSDsluCounter, 2955 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1737 SdHoareTripleChecker+Valid, 3542 SdHoareTripleChecker+Invalid, 489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:34:34,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1737 Valid, 3542 Invalid, 489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-26 00:34:34,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2022-11-26 00:34:34,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 246. [2022-11-26 00:34:34,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 236 states have (on average 1.1991525423728813) internal successors, (283), 245 states have internal predecessors, (283), 0 states have call successors, (0), 0 states 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 00:34:34,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 283 transitions. [2022-11-26 00:34:34,308 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 283 transitions. Word has length 83 [2022-11-26 00:34:34,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:34:34,308 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 283 transitions. [2022-11-26 00:34:34,309 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) [2022-11-26 00:34:34,309 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 283 transitions. [2022-11-26 00:34:34,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-26 00:34:34,309 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:34:34,310 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:34:34,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-11-26 00:34:34,310 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)] === [2022-11-26 00:34:34,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:34:34,311 INFO L85 PathProgramCache]: Analyzing trace with hash 2131684943, now seen corresponding path program 1 times [2022-11-26 00:34:34,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:34:34,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305282501] [2022-11-26 00:34:34,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:34:34,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:34:34,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:34:34,882 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 00:34:34,882 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:34:34,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305282501] [2022-11-26 00:34:34,883 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305282501] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:34:34,883 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:34:34,883 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-26 00:34:34,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781514543] [2022-11-26 00:34:34,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:34:34,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-26 00:34:34,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:34:34,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-26 00:34:34,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-26 00:34:34,885 INFO L87 Difference]: Start difference. First operand 246 states and 283 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) [2022-11-26 00:34:35,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:34:35,994 INFO L93 Difference]: Finished difference Result 404 states and 472 transitions. [2022-11-26 00:34:35,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-26 00:34:35,994 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 [2022-11-26 00:34:35,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:34:35,995 INFO L225 Difference]: With dead ends: 404 [2022-11-26 00:34:35,995 INFO L226 Difference]: Without dead ends: 356 [2022-11-26 00:34:35,996 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 [2022-11-26 00:34:35,996 INFO L413 NwaCegarLoop]: 308 mSDtfsCounter, 1404 mSDsluCounter, 1353 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1404 SdHoareTripleChecker+Valid, 1661 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:34:35,996 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1404 Valid, 1661 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-26 00:34:35,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2022-11-26 00:34:36,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 242. [2022-11-26 00:34:36,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 233 states have (on average 1.1931330472103003) internal successors, (278), 241 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) [2022-11-26 00:34:36,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 278 transitions. [2022-11-26 00:34:36,143 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 278 transitions. Word has length 84 [2022-11-26 00:34:36,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:34:36,144 INFO L495 AbstractCegarLoop]: Abstraction has 242 states and 278 transitions. [2022-11-26 00:34:36,144 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) [2022-11-26 00:34:36,144 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 278 transitions. [2022-11-26 00:34:36,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-26 00:34:36,144 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:34:36,144 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:34:36,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-11-26 00:34:36,145 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)] === [2022-11-26 00:34:36,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:34:36,145 INFO L85 PathProgramCache]: Analyzing trace with hash -1223733489, now seen corresponding path program 1 times [2022-11-26 00:34:36,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:34:36,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134534710] [2022-11-26 00:34:36,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:34:36,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:34:36,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:34:36,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:34:36,694 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:34:36,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134534710] [2022-11-26 00:34:36,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134534710] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:34:36,694 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:34:36,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-26 00:34:36,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245344251] [2022-11-26 00:34:36,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:34:36,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-26 00:34:36,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:34:36,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-26 00:34:36,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-26 00:34:36,696 INFO L87 Difference]: Start difference. First operand 242 states and 278 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) [2022-11-26 00:34:39,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:34:39,200 INFO L93 Difference]: Finished difference Result 933 states and 1135 transitions. [2022-11-26 00:34:39,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-26 00:34:39,201 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 [2022-11-26 00:34:39,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:34:39,204 INFO L225 Difference]: With dead ends: 933 [2022-11-26 00:34:39,204 INFO L226 Difference]: Without dead ends: 854 [2022-11-26 00:34:39,205 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 [2022-11-26 00:34:39,206 INFO L413 NwaCegarLoop]: 878 mSDtfsCounter, 1121 mSDsluCounter, 6116 mSDsCounter, 0 mSdLazyCounter, 1063 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1121 SdHoareTripleChecker+Valid, 6994 SdHoareTripleChecker+Invalid, 1063 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1063 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-26 00:34:39,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1121 Valid, 6994 Invalid, 1063 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1063 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-26 00:34:39,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 854 states. [2022-11-26 00:34:39,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 854 to 207. [2022-11-26 00:34:39,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 201 states have (on average 1.1791044776119404) internal successors, (237), 206 states have internal predecessors, (237), 0 states have call successors, (0), 0 states 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 00:34:39,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 237 transitions. [2022-11-26 00:34:39,365 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 237 transitions. Word has length 84 [2022-11-26 00:34:39,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:34:39,365 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 237 transitions. [2022-11-26 00:34:39,365 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) [2022-11-26 00:34:39,365 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 237 transitions. [2022-11-26 00:34:39,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-26 00:34:39,365 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:34:39,365 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, 1, 1, 1] [2022-11-26 00:34:39,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-11-26 00:34:39,366 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)] === [2022-11-26 00:34:39,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:34:39,366 INFO L85 PathProgramCache]: Analyzing trace with hash -1559722417, now seen corresponding path program 1 times [2022-11-26 00:34:39,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:34:39,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279351569] [2022-11-26 00:34:39,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:34:39,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:34:39,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:34:40,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:34:40,129 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:34:40,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279351569] [2022-11-26 00:34:40,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279351569] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:34:40,130 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:34:40,130 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-26 00:34:40,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664452333] [2022-11-26 00:34:40,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:34:40,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-26 00:34:40,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:34:40,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-26 00:34:40,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2022-11-26 00:34:40,131 INFO L87 Difference]: Start difference. First operand 207 states and 237 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) [2022-11-26 00:34:42,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:34:42,078 INFO L93 Difference]: Finished difference Result 604 states and 724 transitions. [2022-11-26 00:34:42,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-26 00:34:42,078 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 [2022-11-26 00:34:42,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:34:42,080 INFO L225 Difference]: With dead ends: 604 [2022-11-26 00:34:42,081 INFO L226 Difference]: Without dead ends: 515 [2022-11-26 00:34:42,081 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 [2022-11-26 00:34:42,082 INFO L413 NwaCegarLoop]: 343 mSDtfsCounter, 1903 mSDsluCounter, 2555 mSDsCounter, 0 mSdLazyCounter, 734 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1903 SdHoareTripleChecker+Valid, 2898 SdHoareTripleChecker+Invalid, 734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:34:42,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1903 Valid, 2898 Invalid, 734 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 734 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-26 00:34:42,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2022-11-26 00:34:42,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 207. [2022-11-26 00:34:42,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 201 states have (on average 1.1741293532338308) internal successors, (236), 206 states have internal predecessors, (236), 0 states have call successors, (0), 0 states 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 00:34:42,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 236 transitions. [2022-11-26 00:34:42,231 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 236 transitions. Word has length 84 [2022-11-26 00:34:42,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:34:42,231 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 236 transitions. [2022-11-26 00:34:42,231 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) [2022-11-26 00:34:42,231 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 236 transitions. [2022-11-26 00:34:42,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-11-26 00:34:42,232 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:34:42,232 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:34:42,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-11-26 00:34:42,232 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)] === [2022-11-26 00:34:42,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:34:42,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1570867187, now seen corresponding path program 1 times [2022-11-26 00:34:42,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:34:42,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421596699] [2022-11-26 00:34:42,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:34:42,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:34:42,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:34:42,832 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 00:34:42,832 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:34:42,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421596699] [2022-11-26 00:34:42,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421596699] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:34:42,833 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:34:42,833 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-26 00:34:42,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514961214] [2022-11-26 00:34:42,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:34:42,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-26 00:34:42,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:34:42,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-26 00:34:42,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-26 00:34:42,834 INFO L87 Difference]: Start difference. First operand 207 states and 236 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) [2022-11-26 00:34:45,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:34:45,537 INFO L93 Difference]: Finished difference Result 797 states and 974 transitions. [2022-11-26 00:34:45,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-26 00:34:45,538 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 [2022-11-26 00:34:45,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:34:45,540 INFO L225 Difference]: With dead ends: 797 [2022-11-26 00:34:45,540 INFO L226 Difference]: Without dead ends: 742 [2022-11-26 00:34:45,541 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 [2022-11-26 00:34:45,542 INFO L413 NwaCegarLoop]: 578 mSDtfsCounter, 1419 mSDsluCounter, 3888 mSDsCounter, 0 mSdLazyCounter, 871 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1419 SdHoareTripleChecker+Valid, 4466 SdHoareTripleChecker+Invalid, 871 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 871 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-26 00:34:45,542 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1419 Valid, 4466 Invalid, 871 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 871 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-26 00:34:45,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 742 states. [2022-11-26 00:34:45,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 742 to 196. [2022-11-26 00:34:45,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 191 states have (on average 1.1675392670157068) internal successors, (223), 195 states have internal predecessors, (223), 0 states have call successors, (0), 0 states 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 00:34:45,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 223 transitions. [2022-11-26 00:34:45,687 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 223 transitions. Word has length 85 [2022-11-26 00:34:45,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:34:45,687 INFO L495 AbstractCegarLoop]: Abstraction has 196 states and 223 transitions. [2022-11-26 00:34:45,687 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) [2022-11-26 00:34:45,687 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 223 transitions. [2022-11-26 00:34:45,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-11-26 00:34:45,688 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:34:45,688 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:34:45,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-11-26 00:34:45,688 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)] === [2022-11-26 00:34:45,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:34:45,689 INFO L85 PathProgramCache]: Analyzing trace with hash -1029208973, now seen corresponding path program 1 times [2022-11-26 00:34:45,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:34:45,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148744040] [2022-11-26 00:34:45,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:34:45,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:34:45,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:34:46,463 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 00:34:46,463 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:34:46,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148744040] [2022-11-26 00:34:46,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148744040] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:34:46,463 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:34:46,464 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:34:46,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050727393] [2022-11-26 00:34:46,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:34:46,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:34:46,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:34:46,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:34:46,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:34:46,465 INFO L87 Difference]: Start difference. First operand 196 states and 223 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) [2022-11-26 00:34:48,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:34:48,197 INFO L93 Difference]: Finished difference Result 400 states and 473 transitions. [2022-11-26 00:34:48,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-26 00:34:48,198 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 [2022-11-26 00:34:48,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:34:48,199 INFO L225 Difference]: With dead ends: 400 [2022-11-26 00:34:48,199 INFO L226 Difference]: Without dead ends: 318 [2022-11-26 00:34:48,199 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 [2022-11-26 00:34:48,200 INFO L413 NwaCegarLoop]: 264 mSDtfsCounter, 1046 mSDsluCounter, 1988 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1046 SdHoareTripleChecker+Valid, 2252 SdHoareTripleChecker+Invalid, 583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:34:48,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1046 Valid, 2252 Invalid, 583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 583 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-26 00:34:48,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2022-11-26 00:34:48,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 158. [2022-11-26 00:34:48,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 155 states have (on average 1.1612903225806452) internal successors, (180), 157 states have internal predecessors, (180), 0 states have call successors, (0), 0 states 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 00:34:48,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 180 transitions. [2022-11-26 00:34:48,329 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 180 transitions. Word has length 85 [2022-11-26 00:34:48,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:34:48,329 INFO L495 AbstractCegarLoop]: Abstraction has 158 states and 180 transitions. [2022-11-26 00:34:48,329 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) [2022-11-26 00:34:48,330 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 180 transitions. [2022-11-26 00:34:48,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-11-26 00:34:48,330 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:34:48,330 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] [2022-11-26 00:34:48,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-11-26 00:34:48,331 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)] === [2022-11-26 00:34:48,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:34:48,331 INFO L85 PathProgramCache]: Analyzing trace with hash 458104271, now seen corresponding path program 1 times [2022-11-26 00:34:48,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:34:48,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669551924] [2022-11-26 00:34:48,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:34:48,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:34:48,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:34:48,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:34:48,618 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:34:48,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669551924] [2022-11-26 00:34:48,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669551924] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:34:48,619 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:34:48,619 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-26 00:34:48,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746095582] [2022-11-26 00:34:48,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:34:48,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-26 00:34:48,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:34:48,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-26 00:34:48,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:34:48,624 INFO L87 Difference]: Start difference. First operand 158 states and 180 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) [2022-11-26 00:34:49,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:34:49,370 INFO L93 Difference]: Finished difference Result 233 states and 269 transitions. [2022-11-26 00:34:49,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-26 00:34:49,371 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 [2022-11-26 00:34:49,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:34:49,372 INFO L225 Difference]: With dead ends: 233 [2022-11-26 00:34:49,372 INFO L226 Difference]: Without dead ends: 225 [2022-11-26 00:34:49,372 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 [2022-11-26 00:34:49,373 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 546 mSDsluCounter, 451 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 546 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:34:49,373 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [546 Valid, 578 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-26 00:34:49,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2022-11-26 00:34:49,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 158. [2022-11-26 00:34:49,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 155 states have (on average 1.1548387096774193) internal successors, (179), 157 states have internal predecessors, (179), 0 states have call successors, (0), 0 states 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 00:34:49,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 179 transitions. [2022-11-26 00:34:49,508 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 179 transitions. Word has length 86 [2022-11-26 00:34:49,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:34:49,511 INFO L495 AbstractCegarLoop]: Abstraction has 158 states and 179 transitions. [2022-11-26 00:34:49,511 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) [2022-11-26 00:34:49,511 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 179 transitions. [2022-11-26 00:34:49,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-11-26 00:34:49,511 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:34:49,511 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:34:49,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-11-26 00:34:49,512 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)] === [2022-11-26 00:34:49,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:34:49,512 INFO L85 PathProgramCache]: Analyzing trace with hash -1517009585, now seen corresponding path program 1 times [2022-11-26 00:34:49,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:34:49,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602835498] [2022-11-26 00:34:49,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:34:49,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:34:49,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:34:49,714 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 00:34:49,714 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:34:49,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602835498] [2022-11-26 00:34:49,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602835498] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:34:49,715 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:34:49,715 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-26 00:34:49,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398910773] [2022-11-26 00:34:49,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:34:49,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-26 00:34:49,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:34:49,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-26 00:34:49,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:34:49,716 INFO L87 Difference]: Start difference. First operand 158 states and 179 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) [2022-11-26 00:34:50,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:34:50,524 INFO L93 Difference]: Finished difference Result 309 states and 363 transitions. [2022-11-26 00:34:50,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-26 00:34:50,525 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 [2022-11-26 00:34:50,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:34:50,526 INFO L225 Difference]: With dead ends: 309 [2022-11-26 00:34:50,526 INFO L226 Difference]: Without dead ends: 245 [2022-11-26 00:34:50,526 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 00:34:50,527 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 599 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 599 SdHoareTripleChecker+Valid, 544 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:34:50,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [599 Valid, 544 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:34:50,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2022-11-26 00:34:50,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 158. [2022-11-26 00:34:50,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 155 states have (on average 1.1483870967741936) internal successors, (178), 157 states have internal predecessors, (178), 0 states have call successors, (0), 0 states 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 00:34:50,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 178 transitions. [2022-11-26 00:34:50,658 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 178 transitions. Word has length 86 [2022-11-26 00:34:50,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:34:50,659 INFO L495 AbstractCegarLoop]: Abstraction has 158 states and 178 transitions. [2022-11-26 00:34:50,659 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) [2022-11-26 00:34:50,659 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 178 transitions. [2022-11-26 00:34:50,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-11-26 00:34:50,659 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:34:50,660 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:34:50,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-11-26 00:34:50,660 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)] === [2022-11-26 00:34:50,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:34:50,661 INFO L85 PathProgramCache]: Analyzing trace with hash 615115764, now seen corresponding path program 1 times [2022-11-26 00:34:50,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:34:50,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635932863] [2022-11-26 00:34:50,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:34:50,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:34:50,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:34:51,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:34:51,189 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:34:51,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635932863] [2022-11-26 00:34:51,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635932863] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:34:51,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:34:51,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-26 00:34:51,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901015408] [2022-11-26 00:34:51,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:34:51,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-26 00:34:51,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:34:51,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-26 00:34:51,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-26 00:34:51,191 INFO L87 Difference]: Start difference. First operand 158 states and 178 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) [2022-11-26 00:34:52,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:34:52,489 INFO L93 Difference]: Finished difference Result 321 states and 383 transitions. [2022-11-26 00:34:52,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:34:52,490 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 [2022-11-26 00:34:52,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:34:52,491 INFO L225 Difference]: With dead ends: 321 [2022-11-26 00:34:52,491 INFO L226 Difference]: Without dead ends: 315 [2022-11-26 00:34:52,491 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 [2022-11-26 00:34:52,492 INFO L413 NwaCegarLoop]: 313 mSDtfsCounter, 747 mSDsluCounter, 1160 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 747 SdHoareTripleChecker+Valid, 1473 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:34:52,492 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [747 Valid, 1473 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-26 00:34:52,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2022-11-26 00:34:52,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 152. [2022-11-26 00:34:52,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 150 states have (on average 1.1466666666666667) internal successors, (172), 151 states have internal predecessors, (172), 0 states have call successors, (0), 0 states 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 00:34:52,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 172 transitions. [2022-11-26 00:34:52,664 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 172 transitions. Word has length 88 [2022-11-26 00:34:52,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:34:52,664 INFO L495 AbstractCegarLoop]: Abstraction has 152 states and 172 transitions. [2022-11-26 00:34:52,665 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) [2022-11-26 00:34:52,665 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 172 transitions. [2022-11-26 00:34:52,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-11-26 00:34:52,666 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:34:52,666 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:34:52,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-11-26 00:34:52,668 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)] === [2022-11-26 00:34:52,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:34:52,668 INFO L85 PathProgramCache]: Analyzing trace with hash -1522049356, now seen corresponding path program 1 times [2022-11-26 00:34:52,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:34:52,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11275330] [2022-11-26 00:34:52,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:34:52,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:34:52,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:34:54,170 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 00:34:54,170 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:34:54,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11275330] [2022-11-26 00:34:54,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11275330] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:34:54,170 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:34:54,170 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-11-26 00:34:54,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744893078] [2022-11-26 00:34:54,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:34:54,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-26 00:34:54,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:34:54,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-26 00:34:54,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=587, Unknown=0, NotChecked=0, Total=650 [2022-11-26 00:34:54,172 INFO L87 Difference]: Start difference. First operand 152 states and 172 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) [2022-11-26 00:34:59,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:34:59,035 INFO L93 Difference]: Finished difference Result 578 states and 681 transitions. [2022-11-26 00:34:59,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-26 00:34:59,035 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 [2022-11-26 00:34:59,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:34:59,036 INFO L225 Difference]: With dead ends: 578 [2022-11-26 00:34:59,036 INFO L226 Difference]: Without dead ends: 569 [2022-11-26 00:34:59,037 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=330, Invalid=1832, Unknown=0, NotChecked=0, Total=2162 [2022-11-26 00:34:59,037 INFO L413 NwaCegarLoop]: 469 mSDtfsCounter, 1407 mSDsluCounter, 6576 mSDsCounter, 0 mSdLazyCounter, 3181 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1407 SdHoareTripleChecker+Valid, 7045 SdHoareTripleChecker+Invalid, 3189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 3181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:34:59,037 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1407 Valid, 7045 Invalid, 3189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 3181 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-26 00:34:59,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2022-11-26 00:34:59,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 174. [2022-11-26 00:34:59,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 172 states have (on average 1.1511627906976745) internal successors, (198), 173 states have internal predecessors, (198), 0 states have call successors, (0), 0 states 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 00:34:59,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 198 transitions. [2022-11-26 00:34:59,253 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 198 transitions. Word has length 88 [2022-11-26 00:34:59,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:34:59,253 INFO L495 AbstractCegarLoop]: Abstraction has 174 states and 198 transitions. [2022-11-26 00:34:59,253 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) [2022-11-26 00:34:59,253 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 198 transitions. [2022-11-26 00:34:59,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-11-26 00:34:59,254 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:34:59,254 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:34:59,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-11-26 00:34:59,254 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)] === [2022-11-26 00:34:59,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:34:59,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1503027030, now seen corresponding path program 1 times [2022-11-26 00:34:59,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:34:59,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062094521] [2022-11-26 00:34:59,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:34:59,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:34:59,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:35:00,611 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 00:35:00,611 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:35:00,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062094521] [2022-11-26 00:35:00,612 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062094521] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:35:00,612 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:35:00,612 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-11-26 00:35:00,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647691136] [2022-11-26 00:35:00,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:35:00,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-26 00:35:00,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:35:00,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-26 00:35:00,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=377, Unknown=0, NotChecked=0, Total=420 [2022-11-26 00:35:00,613 INFO L87 Difference]: Start difference. First operand 174 states and 198 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) [2022-11-26 00:35:08,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:35:08,473 INFO L93 Difference]: Finished difference Result 847 states and 1035 transitions. [2022-11-26 00:35:08,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-11-26 00:35:08,473 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 [2022-11-26 00:35:08,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:35:08,475 INFO L225 Difference]: With dead ends: 847 [2022-11-26 00:35:08,475 INFO L226 Difference]: Without dead ends: 834 [2022-11-26 00:35:08,476 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 612 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=521, Invalid=2671, Unknown=0, NotChecked=0, Total=3192 [2022-11-26 00:35:08,476 INFO L413 NwaCegarLoop]: 710 mSDtfsCounter, 1770 mSDsluCounter, 8862 mSDsCounter, 0 mSdLazyCounter, 3277 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1770 SdHoareTripleChecker+Valid, 9572 SdHoareTripleChecker+Invalid, 3286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 3277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:35:08,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1770 Valid, 9572 Invalid, 3286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 3277 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-26 00:35:08,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2022-11-26 00:35:08,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 187. [2022-11-26 00:35:08,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 185 states have (on average 1.1513513513513514) internal successors, (213), 186 states have internal predecessors, (213), 0 states have call successors, (0), 0 states 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 00:35:08,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 213 transitions. [2022-11-26 00:35:08,682 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 213 transitions. Word has length 89 [2022-11-26 00:35:08,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:35:08,683 INFO L495 AbstractCegarLoop]: Abstraction has 187 states and 213 transitions. [2022-11-26 00:35:08,683 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) [2022-11-26 00:35:08,683 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 213 transitions. [2022-11-26 00:35:08,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-11-26 00:35:08,683 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:35:08,683 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:35:08,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-11-26 00:35:08,684 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)] === [2022-11-26 00:35:08,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:35:08,684 INFO L85 PathProgramCache]: Analyzing trace with hash 345988239, now seen corresponding path program 1 times [2022-11-26 00:35:08,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:35:08,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454725593] [2022-11-26 00:35:08,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:35:08,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:35:08,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:35:09,222 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 00:35:09,222 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:35:09,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454725593] [2022-11-26 00:35:09,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454725593] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:35:09,223 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:35:09,223 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-26 00:35:09,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417208616] [2022-11-26 00:35:09,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:35:09,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-26 00:35:09,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:35:09,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-26 00:35:09,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-26 00:35:09,224 INFO L87 Difference]: Start difference. First operand 187 states and 213 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) [2022-11-26 00:35:10,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:35:10,616 INFO L93 Difference]: Finished difference Result 371 states and 444 transitions. [2022-11-26 00:35:10,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:35:10,617 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 [2022-11-26 00:35:10,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:35:10,618 INFO L225 Difference]: With dead ends: 371 [2022-11-26 00:35:10,618 INFO L226 Difference]: Without dead ends: 355 [2022-11-26 00:35:10,618 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 [2022-11-26 00:35:10,619 INFO L413 NwaCegarLoop]: 332 mSDtfsCounter, 717 mSDsluCounter, 1248 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 717 SdHoareTripleChecker+Valid, 1580 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:35:10,619 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [717 Valid, 1580 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-26 00:35:10,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2022-11-26 00:35:10,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 139. [2022-11-26 00:35:10,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 138 states have (on average 1.144927536231884) internal successors, (158), 138 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:35:10,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 158 transitions. [2022-11-26 00:35:10,775 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 158 transitions. Word has length 89 [2022-11-26 00:35:10,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:35:10,775 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 158 transitions. [2022-11-26 00:35:10,775 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) [2022-11-26 00:35:10,775 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 158 transitions. [2022-11-26 00:35:10,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-11-26 00:35:10,776 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:35:10,776 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:35:10,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-11-26 00:35:10,776 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)] === [2022-11-26 00:35:10,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:35:10,777 INFO L85 PathProgramCache]: Analyzing trace with hash 1224566650, now seen corresponding path program 1 times [2022-11-26 00:35:10,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:35:10,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848762763] [2022-11-26 00:35:10,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:35:10,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:35:10,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:35:10,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:35:10,919 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:35:10,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848762763] [2022-11-26 00:35:10,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848762763] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:35:10,920 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:35:10,920 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:35:10,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718292037] [2022-11-26 00:35:10,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:35:10,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:35:10,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:35:10,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:35:10,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:35:10,922 INFO L87 Difference]: Start difference. First operand 139 states and 158 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) [2022-11-26 00:35:11,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:35:11,274 INFO L93 Difference]: Finished difference Result 227 states and 272 transitions. [2022-11-26 00:35:11,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:35:11,274 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 [2022-11-26 00:35:11,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:35:11,275 INFO L225 Difference]: With dead ends: 227 [2022-11-26 00:35:11,275 INFO L226 Difference]: Without dead ends: 183 [2022-11-26 00:35:11,275 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 00:35:11,276 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 64 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 297 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 [2022-11-26 00:35:11,276 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 297 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:35:11,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2022-11-26 00:35:11,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 177. [2022-11-26 00:35:11,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 176 states have (on average 1.1818181818181819) internal successors, (208), 176 states have internal predecessors, (208), 0 states have call successors, (0), 0 states 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 00:35:11,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 208 transitions. [2022-11-26 00:35:11,536 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 208 transitions. Word has length 107 [2022-11-26 00:35:11,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:35:11,536 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 208 transitions. [2022-11-26 00:35:11,536 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) [2022-11-26 00:35:11,536 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 208 transitions. [2022-11-26 00:35:11,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-11-26 00:35:11,536 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:35:11,537 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:35:11,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-11-26 00:35:11,537 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)] === [2022-11-26 00:35:11,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:35:11,537 INFO L85 PathProgramCache]: Analyzing trace with hash 69520759, now seen corresponding path program 1 times [2022-11-26 00:35:11,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:35:11,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530144155] [2022-11-26 00:35:11,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:35:11,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:35:11,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:35:11,628 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 00:35:11,628 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:35:11,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530144155] [2022-11-26 00:35:11,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530144155] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:35:11,629 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:35:11,629 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:35:11,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801200364] [2022-11-26 00:35:11,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:35:11,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:35:11,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:35:11,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:35:11,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:35:11,630 INFO L87 Difference]: Start difference. First operand 177 states and 208 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) [2022-11-26 00:35:12,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:35:12,221 INFO L93 Difference]: Finished difference Result 341 states and 422 transitions. [2022-11-26 00:35:12,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:35:12,221 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 [2022-11-26 00:35:12,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:35:12,222 INFO L225 Difference]: With dead ends: 341 [2022-11-26 00:35:12,222 INFO L226 Difference]: Without dead ends: 259 [2022-11-26 00:35:12,222 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 00:35:12,223 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 57 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 298 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 [2022-11-26 00:35:12,223 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 298 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:35:12,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2022-11-26 00:35:12,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 249. [2022-11-26 00:35:12,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 248 states have (on average 1.217741935483871) internal successors, (302), 248 states have internal predecessors, (302), 0 states have call successors, (0), 0 states 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 00:35:12,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 302 transitions. [2022-11-26 00:35:12,729 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 302 transitions. Word has length 110 [2022-11-26 00:35:12,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:35:12,730 INFO L495 AbstractCegarLoop]: Abstraction has 249 states and 302 transitions. [2022-11-26 00:35:12,730 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) [2022-11-26 00:35:12,730 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 302 transitions. [2022-11-26 00:35:12,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-26 00:35:12,731 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:35:12,731 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:35:12,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-11-26 00:35:12,731 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)] === [2022-11-26 00:35:12,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:35:12,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1653500781, now seen corresponding path program 1 times [2022-11-26 00:35:12,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:35:12,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75102794] [2022-11-26 00:35:12,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:35:12,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:35:12,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:35:12,865 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 00:35:12,865 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:35:12,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75102794] [2022-11-26 00:35:12,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75102794] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:35:12,865 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:35:12,866 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:35:12,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128749009] [2022-11-26 00:35:12,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:35:12,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:35:12,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:35:12,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:35:12,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:35:12,868 INFO L87 Difference]: Start difference. First operand 249 states and 302 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) [2022-11-26 00:35:13,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:35:13,949 INFO L93 Difference]: Finished difference Result 557 states and 704 transitions. [2022-11-26 00:35:13,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:35:13,950 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 [2022-11-26 00:35:13,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:35:13,951 INFO L225 Difference]: With dead ends: 557 [2022-11-26 00:35:13,951 INFO L226 Difference]: Without dead ends: 403 [2022-11-26 00:35:13,951 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 00:35:13,952 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 50 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 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 [2022-11-26 00:35:13,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 299 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:35:13,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2022-11-26 00:35:14,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 385. [2022-11-26 00:35:14,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 384 states have (on average 1.2447916666666667) internal successors, (478), 384 states have internal predecessors, (478), 0 states have call successors, (0), 0 states 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 00:35:14,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 478 transitions. [2022-11-26 00:35:14,864 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 478 transitions. Word has length 113 [2022-11-26 00:35:14,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:35:14,864 INFO L495 AbstractCegarLoop]: Abstraction has 385 states and 478 transitions. [2022-11-26 00:35:14,865 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) [2022-11-26 00:35:14,865 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 478 transitions. [2022-11-26 00:35:14,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-26 00:35:14,866 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:35:14,866 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:35:14,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-11-26 00:35:14,866 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)] === [2022-11-26 00:35:14,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:35:14,867 INFO L85 PathProgramCache]: Analyzing trace with hash 1760761309, now seen corresponding path program 1 times [2022-11-26 00:35:14,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:35:14,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479891251] [2022-11-26 00:35:14,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:35:14,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:35:14,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:35:14,960 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 00:35:14,960 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:35:14,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479891251] [2022-11-26 00:35:14,960 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479891251] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:35:14,960 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:35:14,960 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:35:14,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274598337] [2022-11-26 00:35:14,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:35:14,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:35:14,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:35:14,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:35:14,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:35:14,962 INFO L87 Difference]: Start difference. First operand 385 states and 478 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) [2022-11-26 00:35:16,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:35:16,876 INFO L93 Difference]: Finished difference Result 965 states and 1232 transitions. [2022-11-26 00:35:16,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:35:16,877 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 [2022-11-26 00:35:16,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:35:16,878 INFO L225 Difference]: With dead ends: 965 [2022-11-26 00:35:16,878 INFO L226 Difference]: Without dead ends: 675 [2022-11-26 00:35:16,879 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 00:35:16,879 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 43 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 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 [2022-11-26 00:35:16,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 300 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:35:16,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states. [2022-11-26 00:35:18,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 641. [2022-11-26 00:35:18,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 640 states have (on average 1.259375) internal successors, (806), 640 states have internal predecessors, (806), 0 states have call successors, (0), 0 states 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 00:35:18,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 806 transitions. [2022-11-26 00:35:18,548 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 806 transitions. Word has length 116 [2022-11-26 00:35:18,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:35:18,548 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 806 transitions. [2022-11-26 00:35:18,548 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) [2022-11-26 00:35:18,548 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 806 transitions. [2022-11-26 00:35:18,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-11-26 00:35:18,549 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:35:18,549 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:35:18,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-11-26 00:35:18,549 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)] === [2022-11-26 00:35:18,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:35:18,550 INFO L85 PathProgramCache]: Analyzing trace with hash -1069678598, now seen corresponding path program 1 times [2022-11-26 00:35:18,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:35:18,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354752966] [2022-11-26 00:35:18,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:35:18,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:35:18,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:35:18,679 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 00:35:18,680 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:35:18,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354752966] [2022-11-26 00:35:18,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354752966] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:35:18,680 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:35:18,680 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:35:18,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112226985] [2022-11-26 00:35:18,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:35:18,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:35:18,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:35:18,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:35:18,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:35:18,682 INFO L87 Difference]: Start difference. First operand 641 states and 806 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) [2022-11-26 00:35:22,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:35:22,184 INFO L93 Difference]: Finished difference Result 1733 states and 2216 transitions. [2022-11-26 00:35:22,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:35:22,184 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 [2022-11-26 00:35:22,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:35:22,186 INFO L225 Difference]: With dead ends: 1733 [2022-11-26 00:35:22,186 INFO L226 Difference]: Without dead ends: 1187 [2022-11-26 00:35:22,187 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 00:35:22,188 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 33 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 301 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 00:35:22,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 301 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:35:22,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1187 states. [2022-11-26 00:35:25,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1187 to 1121. [2022-11-26 00:35:25,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1121 states, 1120 states have (on average 1.2625) internal successors, (1414), 1120 states have internal predecessors, (1414), 0 states have call successors, (0), 0 states 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 00:35:25,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1121 states to 1121 states and 1414 transitions. [2022-11-26 00:35:25,440 INFO L78 Accepts]: Start accepts. Automaton has 1121 states and 1414 transitions. Word has length 119 [2022-11-26 00:35:25,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:35:25,440 INFO L495 AbstractCegarLoop]: Abstraction has 1121 states and 1414 transitions. [2022-11-26 00:35:25,441 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) [2022-11-26 00:35:25,441 INFO L276 IsEmpty]: Start isEmpty. Operand 1121 states and 1414 transitions. [2022-11-26 00:35:25,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-11-26 00:35:25,441 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:35:25,442 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:35:25,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-11-26 00:35:25,442 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)] === [2022-11-26 00:35:25,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:35:25,443 INFO L85 PathProgramCache]: Analyzing trace with hash 488041427, now seen corresponding path program 1 times [2022-11-26 00:35:25,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:35:25,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104402030] [2022-11-26 00:35:25,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:35:25,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:35:25,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:35:25,570 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 00:35:25,570 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:35:25,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104402030] [2022-11-26 00:35:25,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104402030] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:35:25,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:35:25,571 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-26 00:35:25,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308532756] [2022-11-26 00:35:25,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:35:25,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-26 00:35:25,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:35:25,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-26 00:35:25,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-26 00:35:25,573 INFO L87 Difference]: Start difference. First operand 1121 states and 1414 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 00:35:35,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:35:35,937 INFO L93 Difference]: Finished difference Result 4420 states and 5611 transitions. [2022-11-26 00:35:35,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-26 00:35:35,938 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 00:35:35,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:35:35,943 INFO L225 Difference]: With dead ends: 4420 [2022-11-26 00:35:35,943 INFO L226 Difference]: Without dead ends: 3394 [2022-11-26 00:35:35,945 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 00:35:35,946 INFO L413 NwaCegarLoop]: 144 mSDtfsCounter, 837 mSDsluCounter, 1215 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 837 SdHoareTripleChecker+Valid, 1359 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 00:35:35,946 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [837 Valid, 1359 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:35:35,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3394 states. [2022-11-26 00:35:40,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3394 to 1567. [2022-11-26 00:35:40,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1567 states, 1566 states have (on average 1.2490421455938698) internal successors, (1956), 1566 states have internal predecessors, (1956), 0 states have call successors, (0), 0 states 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 00:35:40,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 1956 transitions. [2022-11-26 00:35:40,652 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 1956 transitions. Word has length 122 [2022-11-26 00:35:40,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:35:40,652 INFO L495 AbstractCegarLoop]: Abstraction has 1567 states and 1956 transitions. [2022-11-26 00:35:40,653 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 00:35:40,653 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 1956 transitions. [2022-11-26 00:35:40,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-11-26 00:35:40,653 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:35:40,653 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:35:40,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-11-26 00:35:40,653 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 00:35:40,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:35:40,654 INFO L85 PathProgramCache]: Analyzing trace with hash 603621034, now seen corresponding path program 1 times [2022-11-26 00:35:40,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:35:40,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038174921] [2022-11-26 00:35:40,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:35:40,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:35:40,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:35:40,703 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 00:35:40,703 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:35:40,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038174921] [2022-11-26 00:35:40,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038174921] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:35:40,704 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:35:40,704 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:35:40,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890406349] [2022-11-26 00:35:40,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:35:40,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:35:40,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:35:40,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:35:40,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:35:40,705 INFO L87 Difference]: Start difference. First operand 1567 states and 1956 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 00:35:47,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:35:47,080 INFO L93 Difference]: Finished difference Result 3665 states and 4596 transitions. [2022-11-26 00:35:47,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:35:47,080 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 00:35:47,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:35:47,084 INFO L225 Difference]: With dead ends: 3665 [2022-11-26 00:35:47,084 INFO L226 Difference]: Without dead ends: 2193 [2022-11-26 00:35:47,085 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 00:35:47,086 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 78 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 235 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 00:35:47,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 235 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:35:47,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2193 states. [2022-11-26 00:35:53,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2193 to 2191. [2022-11-26 00:35:53,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2191 states, 2190 states have (on average 1.24337899543379) internal successors, (2723), 2190 states have internal predecessors, (2723), 0 states have call successors, (0), 0 states 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 00:35:53,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2191 states to 2191 states and 2723 transitions. [2022-11-26 00:35:53,333 INFO L78 Accepts]: Start accepts. Automaton has 2191 states and 2723 transitions. Word has length 124 [2022-11-26 00:35:53,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:35:53,333 INFO L495 AbstractCegarLoop]: Abstraction has 2191 states and 2723 transitions. [2022-11-26 00:35:53,334 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 00:35:53,334 INFO L276 IsEmpty]: Start isEmpty. Operand 2191 states and 2723 transitions. [2022-11-26 00:35:53,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-11-26 00:35:53,334 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:35:53,334 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:35:53,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-11-26 00:35:53,335 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 00:35:53,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:35:53,335 INFO L85 PathProgramCache]: Analyzing trace with hash -1582353173, now seen corresponding path program 1 times [2022-11-26 00:35:53,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:35:53,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25068115] [2022-11-26 00:35:53,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:35:53,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:35:53,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:35:53,593 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 00:35:53,594 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:35:53,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25068115] [2022-11-26 00:35:53,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25068115] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:35:53,594 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:35:53,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-26 00:35:53,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219727404] [2022-11-26 00:35:53,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:35:53,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-26 00:35:53,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:35:53,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-26 00:35:53,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-26 00:35:53,596 INFO L87 Difference]: Start difference. First operand 2191 states and 2723 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 00:36:00,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:36:00,003 INFO L93 Difference]: Finished difference Result 4289 states and 5346 transitions. [2022-11-26 00:36:00,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-26 00:36:00,003 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 00:36:00,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:36:00,006 INFO L225 Difference]: With dead ends: 4289 [2022-11-26 00:36:00,006 INFO L226 Difference]: Without dead ends: 2193 [2022-11-26 00:36:00,008 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 00:36:00,009 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 55 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:36:00,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 416 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:36:00,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2193 states. [2022-11-26 00:36:06,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2193 to 2191. [2022-11-26 00:36:06,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2191 states, 2190 states have (on average 1.2429223744292237) internal successors, (2722), 2190 states have internal predecessors, (2722), 0 states have call successors, (0), 0 states 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 00:36:06,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2191 states to 2191 states and 2722 transitions. [2022-11-26 00:36:06,416 INFO L78 Accepts]: Start accepts. Automaton has 2191 states and 2722 transitions. Word has length 124 [2022-11-26 00:36:06,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:36:06,417 INFO L495 AbstractCegarLoop]: Abstraction has 2191 states and 2722 transitions. [2022-11-26 00:36:06,417 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 00:36:06,417 INFO L276 IsEmpty]: Start isEmpty. Operand 2191 states and 2722 transitions. [2022-11-26 00:36:06,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-11-26 00:36:06,418 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:36:06,418 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:36:06,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-11-26 00:36:06,418 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 00:36:06,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:36:06,419 INFO L85 PathProgramCache]: Analyzing trace with hash -4611154, now seen corresponding path program 1 times [2022-11-26 00:36:06,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:36:06,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727755852] [2022-11-26 00:36:06,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:36:06,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:36:06,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:36:06,703 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 00:36:06,703 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:36:06,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727755852] [2022-11-26 00:36:06,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727755852] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:36:06,703 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:36:06,704 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-26 00:36:06,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096513530] [2022-11-26 00:36:06,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:36:06,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-26 00:36:06,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:36:06,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-26 00:36:06,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-26 00:36:06,705 INFO L87 Difference]: Start difference. First operand 2191 states and 2722 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 00:36:16,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:36:16,655 INFO L93 Difference]: Finished difference Result 3018 states and 3728 transitions. [2022-11-26 00:36:16,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:36:16,656 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 00:36:16,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:36:16,661 INFO L225 Difference]: With dead ends: 3018 [2022-11-26 00:36:16,661 INFO L226 Difference]: Without dead ends: 3016 [2022-11-26 00:36:16,662 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 00:36:16,662 INFO L413 NwaCegarLoop]: 223 mSDtfsCounter, 336 mSDsluCounter, 740 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 963 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 00:36:16,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [336 Valid, 963 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:36:16,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3016 states. [2022-11-26 00:36:23,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3016 to 2191. [2022-11-26 00:36:23,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2191 states, 2190 states have (on average 1.2283105022831051) internal successors, (2690), 2190 states have internal predecessors, (2690), 0 states have call successors, (0), 0 states 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 00:36:23,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2191 states to 2191 states and 2690 transitions. [2022-11-26 00:36:23,184 INFO L78 Accepts]: Start accepts. Automaton has 2191 states and 2690 transitions. Word has length 125 [2022-11-26 00:36:23,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:36:23,185 INFO L495 AbstractCegarLoop]: Abstraction has 2191 states and 2690 transitions. [2022-11-26 00:36:23,185 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 00:36:23,185 INFO L276 IsEmpty]: Start isEmpty. Operand 2191 states and 2690 transitions. [2022-11-26 00:36:23,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-11-26 00:36:23,186 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:36:23,186 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 00:36:23,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-11-26 00:36:23,187 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 00:36:23,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:36:23,187 INFO L85 PathProgramCache]: Analyzing trace with hash -1628811057, now seen corresponding path program 1 times [2022-11-26 00:36:23,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:36:23,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166940355] [2022-11-26 00:36:23,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:36:23,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:36:23,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:36:23,535 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 00:36:23,535 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:36:23,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166940355] [2022-11-26 00:36:23,536 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166940355] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:36:23,536 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:36:23,536 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-26 00:36:23,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586891110] [2022-11-26 00:36:23,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:36:23,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-26 00:36:23,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:36:23,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-26 00:36:23,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:36:23,538 INFO L87 Difference]: Start difference. First operand 2191 states and 2690 transitions. Second operand has 8 states, 8 states have (on average 16.625) internal successors, (133), 7 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 00:36:34,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:36:34,288 INFO L93 Difference]: Finished difference Result 5490 states and 6760 transitions. [2022-11-26 00:36:34,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-26 00:36:34,289 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.625) internal successors, (133), 7 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 00:36:34,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:36:34,295 INFO L225 Difference]: With dead ends: 5490 [2022-11-26 00:36:34,295 INFO L226 Difference]: Without dead ends: 3387 [2022-11-26 00:36:34,298 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2022-11-26 00:36:34,299 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 532 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 532 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:36:34,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [532 Valid, 425 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:36:34,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3387 states. [2022-11-26 00:36:40,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3387 to 2191. [2022-11-26 00:36:40,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2191 states, 2190 states have (on average 1.227853881278539) internal successors, (2689), 2190 states have internal predecessors, (2689), 0 states have call successors, (0), 0 states 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 00:36:41,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2191 states to 2191 states and 2689 transitions. [2022-11-26 00:36:41,001 INFO L78 Accepts]: Start accepts. Automaton has 2191 states and 2689 transitions. Word has length 144 [2022-11-26 00:36:41,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:36:41,002 INFO L495 AbstractCegarLoop]: Abstraction has 2191 states and 2689 transitions. [2022-11-26 00:36:41,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.625) internal successors, (133), 7 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 00:36:41,002 INFO L276 IsEmpty]: Start isEmpty. Operand 2191 states and 2689 transitions. [2022-11-26 00:36:41,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-11-26 00:36:41,003 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:36:41,003 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 00:36:41,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-11-26 00:36:41,004 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 00:36:41,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:36:41,004 INFO L85 PathProgramCache]: Analyzing trace with hash -1952900396, now seen corresponding path program 1 times [2022-11-26 00:36:41,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:36:41,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802581657] [2022-11-26 00:36:41,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:36:41,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:36:41,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:36:43,105 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 00:36:43,105 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:36:43,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802581657] [2022-11-26 00:36:43,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802581657] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:36:43,105 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:36:43,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-11-26 00:36:43,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811492434] [2022-11-26 00:36:43,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:36:43,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-26 00:36:43,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:36:43,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-26 00:36:43,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=581, Unknown=0, NotChecked=0, Total=650 [2022-11-26 00:36:43,107 INFO L87 Difference]: Start difference. First operand 2191 states and 2689 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 00:37:06,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:37:06,820 INFO L93 Difference]: Finished difference Result 8421 states and 10382 transitions. [2022-11-26 00:37:06,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-26 00:37:06,820 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 00:37:06,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:37:06,834 INFO L225 Difference]: With dead ends: 8421 [2022-11-26 00:37:06,834 INFO L226 Difference]: Without dead ends: 6317 [2022-11-26 00:37:06,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 303 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=344, Invalid=1818, Unknown=0, NotChecked=0, Total=2162 [2022-11-26 00:37:06,839 INFO L413 NwaCegarLoop]: 483 mSDtfsCounter, 1290 mSDsluCounter, 6275 mSDsCounter, 0 mSdLazyCounter, 3091 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1290 SdHoareTripleChecker+Valid, 6758 SdHoareTripleChecker+Invalid, 3091 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3091 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-26 00:37:06,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1290 Valid, 6758 Invalid, 3091 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3091 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-11-26 00:37:06,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6317 states. [2022-11-26 00:37:13,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6317 to 2215. [2022-11-26 00:37:13,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2215 states, 2214 states have (on average 1.2267389340560073) internal successors, (2716), 2214 states have internal predecessors, (2716), 0 states have call successors, (0), 0 states 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 00:37:13,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2215 states to 2215 states and 2716 transitions. [2022-11-26 00:37:13,754 INFO L78 Accepts]: Start accepts. Automaton has 2215 states and 2716 transitions. Word has length 146 [2022-11-26 00:37:13,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:37:13,755 INFO L495 AbstractCegarLoop]: Abstraction has 2215 states and 2716 transitions. [2022-11-26 00:37:13,755 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 00:37:13,755 INFO L276 IsEmpty]: Start isEmpty. Operand 2215 states and 2716 transitions. [2022-11-26 00:37:13,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-11-26 00:37:13,756 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:37:13,756 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 00:37:13,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-11-26 00:37:13,756 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 00:37:13,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:37:13,757 INFO L85 PathProgramCache]: Analyzing trace with hash -1242899126, now seen corresponding path program 1 times [2022-11-26 00:37:13,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:37:13,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264979389] [2022-11-26 00:37:13,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:37:13,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:37:13,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:37:23,901 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 00:37:23,902 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:37:23,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264979389] [2022-11-26 00:37:23,902 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264979389] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:37:23,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1710210504] [2022-11-26 00:37:23,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:37:23,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:37:23,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9544fc1e-2310-4b8e-b28c-e0e1e56408dd/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:37:23,911 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9544fc1e-2310-4b8e-b28c-e0e1e56408dd/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:37:23,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9544fc1e-2310-4b8e-b28c-e0e1e56408dd/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-26 00:37:24,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:37:24,328 INFO L263 TraceCheckSpWp]: Trace formula consists of 941 conjuncts, 97 conjunts are in the unsatisfiable core [2022-11-26 00:37:24,343 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:38:23,233 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 00:38:23,233 INFO L328 TraceCheckSpWp]: Computing backward predicates...