./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a188db50-cb93-425e-a875-4f0b047debd4/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a188db50-cb93-425e-a875-4f0b047debd4/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a188db50-cb93-425e-a875-4f0b047debd4/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a188db50-cb93-425e-a875-4f0b047debd4/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a188db50-cb93-425e-a875-4f0b047debd4/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a188db50-cb93-425e-a875-4f0b047debd4/bin/utaipan-I9t0OCRTmS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c082dc45380b26d7d2efa14a2b9a25a882bb361e7db7c29c901ddfabd3b29352 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 08:34:34,560 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:34:34,562 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:34:34,587 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:34:34,587 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:34:34,588 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:34:34,590 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:34:34,592 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:34:34,594 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:34:34,595 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:34:34,596 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:34:34,598 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:34:34,598 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:34:34,599 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:34:34,601 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:34:34,603 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:34:34,604 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:34:34,605 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:34:34,607 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:34:34,610 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:34:34,612 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:34:34,616 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:34:34,617 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:34:34,619 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:34:34,623 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:34:34,623 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:34:34,624 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:34:34,625 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:34:34,626 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:34:34,627 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:34:34,627 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:34:34,628 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:34:34,629 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:34:34,631 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:34:34,643 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:34:34,643 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:34:34,644 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:34:34,645 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:34:34,645 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:34:34,646 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:34:34,648 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:34:34,649 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a188db50-cb93-425e-a875-4f0b047debd4/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-19 08:34:34,674 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:34:34,675 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:34:34,675 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:34:34,676 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:34:34,678 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:34:34,679 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:34:34,679 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:34:34,680 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:34:34,680 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:34:34,680 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 08:34:34,682 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:34:34,682 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:34:34,682 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 08:34:34,683 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 08:34:34,683 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:34:34,683 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 08:34:34,684 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 08:34:34,684 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 08:34:34,685 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:34:34,685 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 08:34:34,686 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 08:34:34,686 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 08:34:34,686 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:34:34,687 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 08:34:34,687 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:34:34,688 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 08:34:34,688 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 08:34:34,688 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 08:34:34,689 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:34:34,690 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 08:34:34,690 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:34:34,691 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:34:34,691 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:34:34,691 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:34:34,692 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 08:34:34,692 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:34:34,693 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 08:34:34,694 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 08:34:34,694 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 08:34:34,694 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 08:34:34,694 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:34:34,695 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_a188db50-cb93-425e-a875-4f0b047debd4/bin/utaipan-I9t0OCRTmS/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a188db50-cb93-425e-a875-4f0b047debd4/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c082dc45380b26d7d2efa14a2b9a25a882bb361e7db7c29c901ddfabd3b29352 [2022-11-19 08:34:35,027 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:34:35,064 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:34:35,068 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:34:35,070 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:34:35,071 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:34:35,072 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a188db50-cb93-425e-a875-4f0b047debd4/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2022-11-19 08:34:35,163 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a188db50-cb93-425e-a875-4f0b047debd4/bin/utaipan-I9t0OCRTmS/data/77c9a6ff5/570dd7a4c04f43cca3bb0fbc55e9089c/FLAGac0576134 [2022-11-19 08:34:36,019 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:34:36,020 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a188db50-cb93-425e-a875-4f0b047debd4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2022-11-19 08:34:36,050 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a188db50-cb93-425e-a875-4f0b047debd4/bin/utaipan-I9t0OCRTmS/data/77c9a6ff5/570dd7a4c04f43cca3bb0fbc55e9089c/FLAGac0576134 [2022-11-19 08:34:36,136 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a188db50-cb93-425e-a875-4f0b047debd4/bin/utaipan-I9t0OCRTmS/data/77c9a6ff5/570dd7a4c04f43cca3bb0fbc55e9089c [2022-11-19 08:34:36,143 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:34:36,146 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:34:36,151 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:34:36,151 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:34:36,155 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:34:36,156 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:34:36" (1/1) ... [2022-11-19 08:34:36,158 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7dab92b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:34:36, skipping insertion in model container [2022-11-19 08:34:36,159 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:34:36" (1/1) ... [2022-11-19 08:34:36,169 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:34:36,363 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:34:37,068 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a188db50-cb93-425e-a875-4f0b047debd4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[33110,33123] [2022-11-19 08:34:37,162 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a188db50-cb93-425e-a875-4f0b047debd4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[47435,47448] [2022-11-19 08:34:37,199 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a188db50-cb93-425e-a875-4f0b047debd4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[54586,54599] [2022-11-19 08:34:37,216 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a188db50-cb93-425e-a875-4f0b047debd4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[58145,58158] [2022-11-19 08:34:37,235 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a188db50-cb93-425e-a875-4f0b047debd4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[61485,61498] [2022-11-19 08:34:37,312 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a188db50-cb93-425e-a875-4f0b047debd4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[76732,76745] [2022-11-19 08:34:37,349 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a188db50-cb93-425e-a875-4f0b047debd4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[83878,83891] [2022-11-19 08:34:37,366 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a188db50-cb93-425e-a875-4f0b047debd4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[87432,87445] [2022-11-19 08:34:37,383 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a188db50-cb93-425e-a875-4f0b047debd4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[90767,90780] [2022-11-19 08:34:37,403 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a188db50-cb93-425e-a875-4f0b047debd4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[94900,94913] [2022-11-19 08:34:37,425 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a188db50-cb93-425e-a875-4f0b047debd4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[98301,98314] [2022-11-19 08:34:37,456 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a188db50-cb93-425e-a875-4f0b047debd4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[101855,101868] [2022-11-19 08:34:37,485 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a188db50-cb93-425e-a875-4f0b047debd4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[105190,105203] [2022-11-19 08:34:37,519 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a188db50-cb93-425e-a875-4f0b047debd4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[108944,108957] [2022-11-19 08:34:37,550 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a188db50-cb93-425e-a875-4f0b047debd4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[112294,112307] [2022-11-19 08:34:37,578 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a188db50-cb93-425e-a875-4f0b047debd4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[115829,115842] [2022-11-19 08:34:37,657 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:34:37,675 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:34:37,874 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a188db50-cb93-425e-a875-4f0b047debd4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[33110,33123] [2022-11-19 08:34:37,965 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a188db50-cb93-425e-a875-4f0b047debd4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[47435,47448] [2022-11-19 08:34:37,996 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a188db50-cb93-425e-a875-4f0b047debd4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[54586,54599] [2022-11-19 08:34:38,011 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a188db50-cb93-425e-a875-4f0b047debd4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[58145,58158] [2022-11-19 08:34:38,025 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a188db50-cb93-425e-a875-4f0b047debd4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[61485,61498] [2022-11-19 08:34:38,084 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a188db50-cb93-425e-a875-4f0b047debd4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[76732,76745] [2022-11-19 08:34:38,158 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a188db50-cb93-425e-a875-4f0b047debd4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[83878,83891] [2022-11-19 08:34:38,170 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a188db50-cb93-425e-a875-4f0b047debd4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[87432,87445] [2022-11-19 08:34:38,182 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a188db50-cb93-425e-a875-4f0b047debd4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[90767,90780] [2022-11-19 08:34:38,196 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a188db50-cb93-425e-a875-4f0b047debd4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[94900,94913] [2022-11-19 08:34:38,208 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a188db50-cb93-425e-a875-4f0b047debd4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[98301,98314] [2022-11-19 08:34:38,220 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a188db50-cb93-425e-a875-4f0b047debd4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[101855,101868] [2022-11-19 08:34:38,231 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a188db50-cb93-425e-a875-4f0b047debd4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[105190,105203] [2022-11-19 08:34:38,245 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a188db50-cb93-425e-a875-4f0b047debd4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[108944,108957] [2022-11-19 08:34:38,257 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a188db50-cb93-425e-a875-4f0b047debd4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[112294,112307] [2022-11-19 08:34:38,272 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a188db50-cb93-425e-a875-4f0b047debd4/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[115829,115842] [2022-11-19 08:34:38,299 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:34:38,324 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:34:38,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:34:38 WrapperNode [2022-11-19 08:34:38,325 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:34:38,327 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:34:38,327 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:34:38,328 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:34:38,337 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:34:38" (1/1) ... [2022-11-19 08:34:38,391 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:34:38" (1/1) ... [2022-11-19 08:34:38,518 INFO L138 Inliner]: procedures = 25, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 5403 [2022-11-19 08:34:38,519 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:34:38,520 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:34:38,520 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:34:38,520 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:34:38,532 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:34:38" (1/1) ... [2022-11-19 08:34:38,532 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:34:38" (1/1) ... [2022-11-19 08:34:38,552 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:34:38" (1/1) ... [2022-11-19 08:34:38,552 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:34:38" (1/1) ... [2022-11-19 08:34:38,630 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:34:38" (1/1) ... [2022-11-19 08:34:38,668 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:34:38" (1/1) ... [2022-11-19 08:34:38,694 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:34:38" (1/1) ... [2022-11-19 08:34:38,710 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:34:38" (1/1) ... [2022-11-19 08:34:38,747 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:34:38,749 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:34:38,749 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:34:38,749 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:34:38,751 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:34:38" (1/1) ... [2022-11-19 08:34:38,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:34:38,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a188db50-cb93-425e-a875-4f0b047debd4/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:34:38,793 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a188db50-cb93-425e-a875-4f0b047debd4/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:34:38,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a188db50-cb93-425e-a875-4f0b047debd4/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:34:38,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 08:34:38,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 08:34:38,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:34:38,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:34:39,118 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:34:39,120 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:34:42,800 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:34:43,082 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:34:43,082 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-19 08:34:43,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:34:43 BoogieIcfgContainer [2022-11-19 08:34:43,091 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:34:43,096 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:34:43,097 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:34:43,101 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:34:43,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:34:36" (1/3) ... [2022-11-19 08:34:43,103 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@324c4199 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:34:43, skipping insertion in model container [2022-11-19 08:34:43,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:34:38" (2/3) ... [2022-11-19 08:34:43,104 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@324c4199 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:34:43, skipping insertion in model container [2022-11-19 08:34:43,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:34:43" (3/3) ... [2022-11-19 08:34:43,106 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2022-11-19 08:34:43,133 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:34:43,133 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-11-19 08:34:43,265 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:34:43,276 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;@14af15fe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:34:43,276 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-11-19 08:34:43,287 INFO L276 IsEmpty]: Start isEmpty. Operand has 1086 states, 1069 states have (on average 1.8297474275023387) internal successors, (1956), 1085 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) [2022-11-19 08:34:43,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-19 08:34:43,329 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:34:43,330 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] [2022-11-19 08:34:43,331 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-19 08:34:43,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:34:43,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1232435330, now seen corresponding path program 1 times [2022-11-19 08:34:43,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:34:43,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003632723] [2022-11-19 08:34:43,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:34:43,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:34:43,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:34:44,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:34:44,102 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:34:44,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003632723] [2022-11-19 08:34:44,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003632723] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:34:44,104 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:34:44,104 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:34:44,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256307744] [2022-11-19 08:34:44,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:34:44,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:34:44,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:34:44,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:34:44,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:34:44,160 INFO L87 Difference]: Start difference. First operand has 1086 states, 1069 states have (on average 1.8297474275023387) internal successors, (1956), 1085 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) Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:34:45,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:34:45,647 INFO L93 Difference]: Finished difference Result 1398 states and 2465 transitions. [2022-11-19 08:34:45,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 08:34:45,650 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-11-19 08:34:45,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:34:45,679 INFO L225 Difference]: With dead ends: 1398 [2022-11-19 08:34:45,679 INFO L226 Difference]: Without dead ends: 847 [2022-11-19 08:34:45,691 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 [2022-11-19 08:34:45,696 INFO L413 NwaCegarLoop]: 807 mSDtfsCounter, 4385 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 682 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4385 SdHoareTripleChecker+Valid, 815 SdHoareTripleChecker+Invalid, 692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 682 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:34:45,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4385 Valid, 815 Invalid, 692 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 682 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-19 08:34:45,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 847 states. [2022-11-19 08:34:45,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 847 to 847. [2022-11-19 08:34:45,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 847 states, 831 states have (on average 1.3068592057761732) internal successors, (1086), 846 states have internal predecessors, (1086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:34:45,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 847 states to 847 states and 1086 transitions. [2022-11-19 08:34:45,841 INFO L78 Accepts]: Start accepts. Automaton has 847 states and 1086 transitions. Word has length 71 [2022-11-19 08:34:45,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:34:45,842 INFO L495 AbstractCegarLoop]: Abstraction has 847 states and 1086 transitions. [2022-11-19 08:34:45,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:34:45,843 INFO L276 IsEmpty]: Start isEmpty. Operand 847 states and 1086 transitions. [2022-11-19 08:34:45,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-19 08:34:45,847 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:34:45,847 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:34:45,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 08:34:45,848 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-19 08:34:45,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:34:45,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1527450296, now seen corresponding path program 1 times [2022-11-19 08:34:45,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:34:45,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459576358] [2022-11-19 08:34:45,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:34:45,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:34:45,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:34:46,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:34:46,133 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:34:46,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459576358] [2022-11-19 08:34:46,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459576358] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:34:46,135 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:34:46,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:34:46,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570515322] [2022-11-19 08:34:46,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:34:46,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:34:46,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:34:46,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:34:46,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:34:46,139 INFO L87 Difference]: Start difference. First operand 847 states and 1086 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:34:46,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:34:46,851 INFO L93 Difference]: Finished difference Result 1025 states and 1298 transitions. [2022-11-19 08:34:46,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 08:34:46,852 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-11-19 08:34:46,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:34:46,856 INFO L225 Difference]: With dead ends: 1025 [2022-11-19 08:34:46,856 INFO L226 Difference]: Without dead ends: 605 [2022-11-19 08:34:46,857 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-19 08:34:46,860 INFO L413 NwaCegarLoop]: 365 mSDtfsCounter, 2255 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2255 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-19 08:34:46,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2255 Valid, 385 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-19 08:34:46,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2022-11-19 08:34:46,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 605. [2022-11-19 08:34:46,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 605 states, 589 states have (on average 1.3157894736842106) internal successors, (775), 604 states have internal predecessors, (775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:34:46,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 605 states and 775 transitions. [2022-11-19 08:34:46,924 INFO L78 Accepts]: Start accepts. Automaton has 605 states and 775 transitions. Word has length 71 [2022-11-19 08:34:46,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:34:46,925 INFO L495 AbstractCegarLoop]: Abstraction has 605 states and 775 transitions. [2022-11-19 08:34:46,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:34:46,926 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 775 transitions. [2022-11-19 08:34:46,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-19 08:34:46,931 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:34:46,932 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:34:46,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 08:34:46,932 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)] === [2022-11-19 08:34:46,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:34:46,944 INFO L85 PathProgramCache]: Analyzing trace with hash 2115552032, now seen corresponding path program 1 times [2022-11-19 08:34:46,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:34:46,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251766996] [2022-11-19 08:34:46,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:34:46,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:34:47,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:34:47,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:34:47,266 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:34:47,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251766996] [2022-11-19 08:34:47,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251766996] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:34:47,267 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:34:47,267 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:34:47,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272512628] [2022-11-19 08:34:47,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:34:47,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:34:47,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:34:47,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:34:47,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:34:47,271 INFO L87 Difference]: Start difference. First operand 605 states and 775 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:34:47,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:34:47,852 INFO L93 Difference]: Finished difference Result 719 states and 898 transitions. [2022-11-19 08:34:47,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 08:34:47,853 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-11-19 08:34:47,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:34:47,858 INFO L225 Difference]: With dead ends: 719 [2022-11-19 08:34:47,858 INFO L226 Difference]: Without dead ends: 423 [2022-11-19 08:34:47,859 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-19 08:34:47,863 INFO L413 NwaCegarLoop]: 271 mSDtfsCounter, 1521 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1521 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-19 08:34:47,866 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1521 Valid, 299 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-19 08:34:47,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2022-11-19 08:34:47,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 423. [2022-11-19 08:34:47,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 407 states have (on average 1.3120393120393121) internal successors, (534), 422 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:34:47,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 534 transitions. [2022-11-19 08:34:47,910 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 534 transitions. Word has length 71 [2022-11-19 08:34:47,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:34:47,911 INFO L495 AbstractCegarLoop]: Abstraction has 423 states and 534 transitions. [2022-11-19 08:34:47,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:34:47,913 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 534 transitions. [2022-11-19 08:34:47,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-19 08:34:47,915 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:34:47,916 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:34:47,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 08:34:47,917 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)] === [2022-11-19 08:34:47,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:34:47,919 INFO L85 PathProgramCache]: Analyzing trace with hash -1156366953, now seen corresponding path program 1 times [2022-11-19 08:34:47,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:34:47,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081549815] [2022-11-19 08:34:47,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:34:47,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:34:48,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:34:48,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:34:48,186 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:34:48,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081549815] [2022-11-19 08:34:48,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081549815] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:34:48,187 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:34:48,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:34:48,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901230978] [2022-11-19 08:34:48,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:34:48,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:34:48,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:34:48,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:34:48,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:34:48,192 INFO L87 Difference]: Start difference. First operand 423 states and 534 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) [2022-11-19 08:34:48,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:34:48,668 INFO L93 Difference]: Finished difference Result 597 states and 752 transitions. [2022-11-19 08:34:48,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 08:34:48,669 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 [2022-11-19 08:34:48,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:34:48,671 INFO L225 Difference]: With dead ends: 597 [2022-11-19 08:34:48,672 INFO L226 Difference]: Without dead ends: 374 [2022-11-19 08:34:48,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-19 08:34:48,673 INFO L413 NwaCegarLoop]: 264 mSDtfsCounter, 1365 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1365 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-19 08:34:48,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1365 Valid, 276 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-19 08:34:48,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2022-11-19 08:34:48,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 374. [2022-11-19 08:34:48,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 358 states have (on average 1.3212290502793296) internal successors, (473), 373 states have internal predecessors, (473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:34:48,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 473 transitions. [2022-11-19 08:34:48,763 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 473 transitions. Word has length 72 [2022-11-19 08:34:48,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:34:48,764 INFO L495 AbstractCegarLoop]: Abstraction has 374 states and 473 transitions. [2022-11-19 08:34:48,764 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) [2022-11-19 08:34:48,764 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 473 transitions. [2022-11-19 08:34:48,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-11-19 08:34:48,766 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:34:48,773 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:34:48,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 08:34:48,773 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-19 08:34:48,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:34:48,774 INFO L85 PathProgramCache]: Analyzing trace with hash 1186891401, now seen corresponding path program 1 times [2022-11-19 08:34:48,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:34:48,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704352423] [2022-11-19 08:34:48,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:34:48,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:34:48,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:34:48,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:34:48,992 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:34:48,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704352423] [2022-11-19 08:34:49,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704352423] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:34:49,000 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:34:49,000 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:34:49,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265632150] [2022-11-19 08:34:49,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:34:49,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:34:49,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:34:49,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:34:49,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:34:49,003 INFO L87 Difference]: Start difference. First operand 374 states and 473 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:34:49,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:34:49,481 INFO L93 Difference]: Finished difference Result 563 states and 714 transitions. [2022-11-19 08:34:49,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 08:34:49,482 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2022-11-19 08:34:49,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:34:49,484 INFO L225 Difference]: With dead ends: 563 [2022-11-19 08:34:49,484 INFO L226 Difference]: Without dead ends: 366 [2022-11-19 08:34:49,484 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-19 08:34:49,485 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 1288 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1288 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-19 08:34:49,486 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1288 Valid, 251 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-19 08:34:49,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2022-11-19 08:34:49,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 366. [2022-11-19 08:34:49,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 350 states have (on average 1.322857142857143) internal successors, (463), 365 states have internal predecessors, (463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:34:49,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 463 transitions. [2022-11-19 08:34:49,520 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 463 transitions. Word has length 73 [2022-11-19 08:34:49,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:34:49,521 INFO L495 AbstractCegarLoop]: Abstraction has 366 states and 463 transitions. [2022-11-19 08:34:49,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:34:49,521 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 463 transitions. [2022-11-19 08:34:49,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-19 08:34:49,523 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:34:49,523 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:34:49,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 08:34:49,524 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-19 08:34:49,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:34:49,525 INFO L85 PathProgramCache]: Analyzing trace with hash -117023922, now seen corresponding path program 1 times [2022-11-19 08:34:49,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:34:49,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699720702] [2022-11-19 08:34:49,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:34:49,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:34:49,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:34:50,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:34:50,105 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:34:50,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699720702] [2022-11-19 08:34:50,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699720702] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:34:50,106 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:34:50,106 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-19 08:34:50,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385951725] [2022-11-19 08:34:50,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:34:50,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-19 08:34:50,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:34:50,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-19 08:34:50,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-11-19 08:34:50,109 INFO L87 Difference]: Start difference. First operand 366 states and 463 transitions. Second operand has 10 states, 10 states have (on average 7.4) internal successors, (74), 9 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) [2022-11-19 08:34:51,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:34:51,670 INFO L93 Difference]: Finished difference Result 709 states and 902 transitions. [2022-11-19 08:34:51,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-19 08:34:51,671 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.4) internal successors, (74), 9 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 [2022-11-19 08:34:51,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:34:51,674 INFO L225 Difference]: With dead ends: 709 [2022-11-19 08:34:51,674 INFO L226 Difference]: Without dead ends: 634 [2022-11-19 08:34:51,675 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=248, Unknown=0, NotChecked=0, Total=342 [2022-11-19 08:34:51,676 INFO L413 NwaCegarLoop]: 290 mSDtfsCounter, 2056 mSDsluCounter, 1415 mSDsCounter, 0 mSdLazyCounter, 1536 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2056 SdHoareTripleChecker+Valid, 1705 SdHoareTripleChecker+Invalid, 1539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:34:51,677 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2056 Valid, 1705 Invalid, 1539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1536 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-19 08:34:51,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2022-11-19 08:34:51,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 366. [2022-11-19 08:34:51,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 350 states have (on average 1.32) internal successors, (462), 365 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:34:51,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 462 transitions. [2022-11-19 08:34:51,727 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 462 transitions. Word has length 74 [2022-11-19 08:34:51,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:34:51,729 INFO L495 AbstractCegarLoop]: Abstraction has 366 states and 462 transitions. [2022-11-19 08:34:51,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.4) internal successors, (74), 9 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) [2022-11-19 08:34:51,730 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 462 transitions. [2022-11-19 08:34:51,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-19 08:34:51,738 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:34:51,738 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:34:51,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 08:34:51,739 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-19 08:34:51,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:34:51,740 INFO L85 PathProgramCache]: Analyzing trace with hash 782905456, now seen corresponding path program 1 times [2022-11-19 08:34:51,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:34:51,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111234587] [2022-11-19 08:34:51,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:34:51,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:34:51,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:34:52,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:34:52,231 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:34:52,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111234587] [2022-11-19 08:34:52,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111234587] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:34:52,232 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:34:52,232 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-19 08:34:52,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950263713] [2022-11-19 08:34:52,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:34:52,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-19 08:34:52,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:34:52,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-19 08:34:52,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-19 08:34:52,234 INFO L87 Difference]: Start difference. First operand 366 states and 462 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 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) [2022-11-19 08:34:53,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:34:53,117 INFO L93 Difference]: Finished difference Result 684 states and 836 transitions. [2022-11-19 08:34:53,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-19 08:34:53,117 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 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 [2022-11-19 08:34:53,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:34:53,120 INFO L225 Difference]: With dead ends: 684 [2022-11-19 08:34:53,120 INFO L226 Difference]: Without dead ends: 495 [2022-11-19 08:34:53,121 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 [2022-11-19 08:34:53,122 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 2075 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 571 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2075 SdHoareTripleChecker+Valid, 587 SdHoareTripleChecker+Invalid, 572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-19 08:34:53,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2075 Valid, 587 Invalid, 572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 571 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-19 08:34:53,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2022-11-19 08:34:53,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 366. [2022-11-19 08:34:53,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 350 states have (on average 1.3171428571428572) internal successors, (461), 365 states have internal predecessors, (461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:34:53,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 461 transitions. [2022-11-19 08:34:53,178 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 461 transitions. Word has length 74 [2022-11-19 08:34:53,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:34:53,179 INFO L495 AbstractCegarLoop]: Abstraction has 366 states and 461 transitions. [2022-11-19 08:34:53,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 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) [2022-11-19 08:34:53,181 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 461 transitions. [2022-11-19 08:34:53,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-19 08:34:53,185 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:34:53,186 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:34:53,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-19 08:34:53,186 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-19 08:34:53,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:34:53,187 INFO L85 PathProgramCache]: Analyzing trace with hash 98797326, now seen corresponding path program 1 times [2022-11-19 08:34:53,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:34:53,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654823414] [2022-11-19 08:34:53,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:34:53,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:34:53,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:34:53,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:34:53,702 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:34:53,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654823414] [2022-11-19 08:34:53,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654823414] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:34:53,703 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:34:53,703 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-19 08:34:53,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889249239] [2022-11-19 08:34:53,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:34:53,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 08:34:53,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:34:53,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 08:34:53,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-19 08:34:53,705 INFO L87 Difference]: Start difference. First operand 366 states and 461 transitions. Second operand has 8 states, 8 states have (on average 9.25) internal successors, (74), 7 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) [2022-11-19 08:34:55,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:34:55,025 INFO L93 Difference]: Finished difference Result 704 states and 897 transitions. [2022-11-19 08:34:55,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-19 08:34:55,026 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 7 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 [2022-11-19 08:34:55,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:34:55,030 INFO L225 Difference]: With dead ends: 704 [2022-11-19 08:34:55,031 INFO L226 Difference]: Without dead ends: 638 [2022-11-19 08:34:55,032 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2022-11-19 08:34:55,033 INFO L413 NwaCegarLoop]: 290 mSDtfsCounter, 2021 mSDsluCounter, 921 mSDsCounter, 0 mSdLazyCounter, 1064 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2021 SdHoareTripleChecker+Valid, 1211 SdHoareTripleChecker+Invalid, 1068 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1064 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-19 08:34:55,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2021 Valid, 1211 Invalid, 1068 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1064 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-19 08:34:55,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2022-11-19 08:34:55,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 366. [2022-11-19 08:34:55,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 350 states have (on average 1.3142857142857143) internal successors, (460), 365 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:34:55,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 460 transitions. [2022-11-19 08:34:55,112 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 460 transitions. Word has length 74 [2022-11-19 08:34:55,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:34:55,113 INFO L495 AbstractCegarLoop]: Abstraction has 366 states and 460 transitions. [2022-11-19 08:34:55,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 7 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) [2022-11-19 08:34:55,113 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 460 transitions. [2022-11-19 08:34:55,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-19 08:34:55,115 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:34:55,115 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:34:55,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-19 08:34:55,116 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-19 08:34:55,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:34:55,117 INFO L85 PathProgramCache]: Analyzing trace with hash -2064648218, now seen corresponding path program 1 times [2022-11-19 08:34:55,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:34:55,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339147854] [2022-11-19 08:34:55,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:34:55,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:34:55,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:34:55,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:34:55,672 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:34:55,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339147854] [2022-11-19 08:34:55,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339147854] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:34:55,673 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:34:55,674 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-19 08:34:55,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009764620] [2022-11-19 08:34:55,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:34:55,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 08:34:55,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:34:55,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 08:34:55,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-19 08:34:55,677 INFO L87 Difference]: Start difference. First operand 366 states and 460 transitions. Second operand has 8 states, 8 states have (on average 9.25) internal successors, (74), 7 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) [2022-11-19 08:34:57,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:34:57,330 INFO L93 Difference]: Finished difference Result 747 states and 950 transitions. [2022-11-19 08:34:57,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-19 08:34:57,331 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 7 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 [2022-11-19 08:34:57,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:34:57,335 INFO L225 Difference]: With dead ends: 747 [2022-11-19 08:34:57,335 INFO L226 Difference]: Without dead ends: 642 [2022-11-19 08:34:57,336 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2022-11-19 08:34:57,339 INFO L413 NwaCegarLoop]: 489 mSDtfsCounter, 1790 mSDsluCounter, 1536 mSDsCounter, 0 mSdLazyCounter, 1474 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1790 SdHoareTripleChecker+Valid, 2025 SdHoareTripleChecker+Invalid, 1477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:34:57,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1790 Valid, 2025 Invalid, 1477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1474 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-19 08:34:57,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states. [2022-11-19 08:34:57,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 366. [2022-11-19 08:34:57,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 350 states have (on average 1.3114285714285714) internal successors, (459), 365 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:34:57,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 459 transitions. [2022-11-19 08:34:57,409 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 459 transitions. Word has length 74 [2022-11-19 08:34:57,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:34:57,409 INFO L495 AbstractCegarLoop]: Abstraction has 366 states and 459 transitions. [2022-11-19 08:34:57,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 7 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) [2022-11-19 08:34:57,410 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 459 transitions. [2022-11-19 08:34:57,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-19 08:34:57,419 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:34:57,419 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:34:57,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-19 08:34:57,420 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-19 08:34:57,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:34:57,421 INFO L85 PathProgramCache]: Analyzing trace with hash 1716231595, now seen corresponding path program 1 times [2022-11-19 08:34:57,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:34:57,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596686672] [2022-11-19 08:34:57,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:34:57,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:34:57,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:34:57,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:34:57,924 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:34:57,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596686672] [2022-11-19 08:34:57,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596686672] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:34:57,924 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:34:57,925 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-19 08:34:57,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006556228] [2022-11-19 08:34:57,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:34:57,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 08:34:57,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:34:57,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 08:34:57,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-19 08:34:57,927 INFO L87 Difference]: Start difference. First operand 366 states and 459 transitions. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:34:59,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:34:59,439 INFO L93 Difference]: Finished difference Result 683 states and 859 transitions. [2022-11-19 08:34:59,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-19 08:34:59,439 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-11-19 08:34:59,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:34:59,442 INFO L225 Difference]: With dead ends: 683 [2022-11-19 08:34:59,443 INFO L226 Difference]: Without dead ends: 630 [2022-11-19 08:34:59,443 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2022-11-19 08:34:59,444 INFO L413 NwaCegarLoop]: 369 mSDtfsCounter, 1529 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 1382 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1529 SdHoareTripleChecker+Valid, 1727 SdHoareTripleChecker+Invalid, 1386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:34:59,445 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1529 Valid, 1727 Invalid, 1386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1382 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-19 08:34:59,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2022-11-19 08:34:59,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 366. [2022-11-19 08:34:59,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 350 states have (on average 1.3085714285714285) internal successors, (458), 365 states have internal predecessors, (458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:34:59,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 458 transitions. [2022-11-19 08:34:59,521 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 458 transitions. Word has length 76 [2022-11-19 08:34:59,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:34:59,521 INFO L495 AbstractCegarLoop]: Abstraction has 366 states and 458 transitions. [2022-11-19 08:34:59,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:34:59,522 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 458 transitions. [2022-11-19 08:34:59,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-19 08:34:59,523 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:34:59,523 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:34:59,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-19 08:34:59,524 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-19 08:34:59,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:34:59,525 INFO L85 PathProgramCache]: Analyzing trace with hash -694606913, now seen corresponding path program 1 times [2022-11-19 08:34:59,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:34:59,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679578653] [2022-11-19 08:34:59,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:34:59,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:34:59,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:34:59,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:34:59,856 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:34:59,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679578653] [2022-11-19 08:34:59,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679578653] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:34:59,856 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:34:59,856 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-19 08:34:59,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778774911] [2022-11-19 08:34:59,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:34:59,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 08:34:59,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:34:59,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 08:34:59,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-19 08:34:59,859 INFO L87 Difference]: Start difference. First operand 366 states and 458 transitions. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:35:01,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:35:01,336 INFO L93 Difference]: Finished difference Result 762 states and 960 transitions. [2022-11-19 08:35:01,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-19 08:35:01,337 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-11-19 08:35:01,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:35:01,339 INFO L225 Difference]: With dead ends: 762 [2022-11-19 08:35:01,340 INFO L226 Difference]: Without dead ends: 642 [2022-11-19 08:35:01,340 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-19 08:35:01,341 INFO L413 NwaCegarLoop]: 432 mSDtfsCounter, 1717 mSDsluCounter, 1111 mSDsCounter, 0 mSdLazyCounter, 1301 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1717 SdHoareTripleChecker+Valid, 1543 SdHoareTripleChecker+Invalid, 1306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:35:01,342 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1717 Valid, 1543 Invalid, 1306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1301 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-19 08:35:01,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states. [2022-11-19 08:35:01,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 366. [2022-11-19 08:35:01,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 350 states have (on average 1.3057142857142856) internal successors, (457), 365 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:35:01,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 457 transitions. [2022-11-19 08:35:01,421 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 457 transitions. Word has length 76 [2022-11-19 08:35:01,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:35:01,422 INFO L495 AbstractCegarLoop]: Abstraction has 366 states and 457 transitions. [2022-11-19 08:35:01,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:35:01,422 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 457 transitions. [2022-11-19 08:35:01,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-19 08:35:01,423 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:35:01,424 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:35:01,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-19 08:35:01,424 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-19 08:35:01,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:35:01,425 INFO L85 PathProgramCache]: Analyzing trace with hash -1449671967, now seen corresponding path program 1 times [2022-11-19 08:35:01,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:35:01,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782480880] [2022-11-19 08:35:01,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:35:01,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:35:01,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:35:01,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:35:01,758 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:35:01,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782480880] [2022-11-19 08:35:01,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782480880] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:35:01,758 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:35:01,758 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-19 08:35:01,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746413918] [2022-11-19 08:35:01,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:35:01,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 08:35:01,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:35:01,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 08:35:01,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-19 08:35:01,761 INFO L87 Difference]: Start difference. First operand 366 states and 457 transitions. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:35:03,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:35:03,222 INFO L93 Difference]: Finished difference Result 713 states and 902 transitions. [2022-11-19 08:35:03,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-19 08:35:03,224 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-11-19 08:35:03,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:35:03,228 INFO L225 Difference]: With dead ends: 713 [2022-11-19 08:35:03,228 INFO L226 Difference]: Without dead ends: 638 [2022-11-19 08:35:03,229 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-19 08:35:03,229 INFO L413 NwaCegarLoop]: 418 mSDtfsCounter, 1164 mSDsluCounter, 1192 mSDsCounter, 0 mSdLazyCounter, 1277 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1164 SdHoareTripleChecker+Valid, 1610 SdHoareTripleChecker+Invalid, 1282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:35:03,230 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1164 Valid, 1610 Invalid, 1282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1277 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-19 08:35:03,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2022-11-19 08:35:03,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 366. [2022-11-19 08:35:03,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 350 states have (on average 1.302857142857143) internal successors, (456), 365 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:35:03,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 456 transitions. [2022-11-19 08:35:03,312 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 456 transitions. Word has length 76 [2022-11-19 08:35:03,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:35:03,313 INFO L495 AbstractCegarLoop]: Abstraction has 366 states and 456 transitions. [2022-11-19 08:35:03,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:35:03,313 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 456 transitions. [2022-11-19 08:35:03,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-19 08:35:03,315 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:35:03,315 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:35:03,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-19 08:35:03,315 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)] === [2022-11-19 08:35:03,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:35:03,316 INFO L85 PathProgramCache]: Analyzing trace with hash -263935870, now seen corresponding path program 1 times [2022-11-19 08:35:03,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:35:03,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009381665] [2022-11-19 08:35:03,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:35:03,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:35:03,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:35:03,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:35:03,701 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:35:03,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009381665] [2022-11-19 08:35:03,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009381665] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:35:03,702 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:35:03,702 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-19 08:35:03,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803510629] [2022-11-19 08:35:03,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:35:03,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 08:35:03,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:35:03,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 08:35:03,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-19 08:35:03,705 INFO L87 Difference]: Start difference. First operand 366 states and 456 transitions. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:35:05,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:35:05,234 INFO L93 Difference]: Finished difference Result 683 states and 857 transitions. [2022-11-19 08:35:05,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-19 08:35:05,235 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-11-19 08:35:05,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:35:05,238 INFO L225 Difference]: With dead ends: 683 [2022-11-19 08:35:05,238 INFO L226 Difference]: Without dead ends: 630 [2022-11-19 08:35:05,239 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2022-11-19 08:35:05,240 INFO L413 NwaCegarLoop]: 410 mSDtfsCounter, 1081 mSDsluCounter, 1436 mSDsCounter, 0 mSdLazyCounter, 1416 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1081 SdHoareTripleChecker+Valid, 1846 SdHoareTripleChecker+Invalid, 1420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:35:05,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1081 Valid, 1846 Invalid, 1420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1416 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-19 08:35:05,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2022-11-19 08:35:05,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 366. [2022-11-19 08:35:05,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 350 states have (on average 1.3) internal successors, (455), 365 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:35:05,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 455 transitions. [2022-11-19 08:35:05,347 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 455 transitions. Word has length 76 [2022-11-19 08:35:05,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:35:05,347 INFO L495 AbstractCegarLoop]: Abstraction has 366 states and 455 transitions. [2022-11-19 08:35:05,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:35:05,348 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 455 transitions. [2022-11-19 08:35:05,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-19 08:35:05,350 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:35:05,350 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:35:05,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-19 08:35:05,351 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-19 08:35:05,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:35:05,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1457950665, now seen corresponding path program 1 times [2022-11-19 08:35:05,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:35:05,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142974762] [2022-11-19 08:35:05,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:35:05,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:35:05,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:35:05,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:35:05,716 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:35:05,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142974762] [2022-11-19 08:35:05,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142974762] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:35:05,717 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:35:05,717 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-19 08:35:05,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275855295] [2022-11-19 08:35:05,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:35:05,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 08:35:05,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:35:05,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 08:35:05,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-19 08:35:05,720 INFO L87 Difference]: Start difference. First operand 366 states and 455 transitions. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:35:07,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:35:07,125 INFO L93 Difference]: Finished difference Result 683 states and 855 transitions. [2022-11-19 08:35:07,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-19 08:35:07,126 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-11-19 08:35:07,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:35:07,130 INFO L225 Difference]: With dead ends: 683 [2022-11-19 08:35:07,130 INFO L226 Difference]: Without dead ends: 630 [2022-11-19 08:35:07,131 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2022-11-19 08:35:07,132 INFO L413 NwaCegarLoop]: 414 mSDtfsCounter, 1069 mSDsluCounter, 1269 mSDsCounter, 0 mSdLazyCounter, 1350 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1069 SdHoareTripleChecker+Valid, 1683 SdHoareTripleChecker+Invalid, 1354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:35:07,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1069 Valid, 1683 Invalid, 1354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1350 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-19 08:35:07,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2022-11-19 08:35:07,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 366. [2022-11-19 08:35:07,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 350 states have (on average 1.2971428571428572) internal successors, (454), 365 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:35:07,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 454 transitions. [2022-11-19 08:35:07,261 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 454 transitions. Word has length 76 [2022-11-19 08:35:07,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:35:07,261 INFO L495 AbstractCegarLoop]: Abstraction has 366 states and 454 transitions. [2022-11-19 08:35:07,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:35:07,262 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 454 transitions. [2022-11-19 08:35:07,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-19 08:35:07,263 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:35:07,264 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:35:07,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-19 08:35:07,264 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-19 08:35:07,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:35:07,265 INFO L85 PathProgramCache]: Analyzing trace with hash -995702185, now seen corresponding path program 1 times [2022-11-19 08:35:07,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:35:07,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792654821] [2022-11-19 08:35:07,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:35:07,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:35:07,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:35:07,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:35:07,614 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:35:07,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792654821] [2022-11-19 08:35:07,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792654821] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:35:07,614 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:35:07,615 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-19 08:35:07,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382940300] [2022-11-19 08:35:07,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:35:07,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 08:35:07,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:35:07,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 08:35:07,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-19 08:35:07,617 INFO L87 Difference]: Start difference. First operand 366 states and 454 transitions. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:35:08,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:35:08,998 INFO L93 Difference]: Finished difference Result 679 states and 850 transitions. [2022-11-19 08:35:08,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-19 08:35:08,998 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-11-19 08:35:08,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:35:09,003 INFO L225 Difference]: With dead ends: 679 [2022-11-19 08:35:09,004 INFO L226 Difference]: Without dead ends: 630 [2022-11-19 08:35:09,006 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2022-11-19 08:35:09,009 INFO L413 NwaCegarLoop]: 401 mSDtfsCounter, 1122 mSDsluCounter, 1269 mSDsCounter, 0 mSdLazyCounter, 1273 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1122 SdHoareTripleChecker+Valid, 1670 SdHoareTripleChecker+Invalid, 1277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:35:09,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1122 Valid, 1670 Invalid, 1277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1273 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-19 08:35:09,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2022-11-19 08:35:09,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 366. [2022-11-19 08:35:09,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 350 states have (on average 1.2942857142857143) internal successors, (453), 365 states have internal predecessors, (453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:35:09,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 453 transitions. [2022-11-19 08:35:09,107 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 453 transitions. Word has length 76 [2022-11-19 08:35:09,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:35:09,108 INFO L495 AbstractCegarLoop]: Abstraction has 366 states and 453 transitions. [2022-11-19 08:35:09,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:35:09,108 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 453 transitions. [2022-11-19 08:35:09,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-19 08:35:09,110 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:35:09,110 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:35:09,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-19 08:35:09,110 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-19 08:35:09,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:35:09,111 INFO L85 PathProgramCache]: Analyzing trace with hash 513544580, now seen corresponding path program 1 times [2022-11-19 08:35:09,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:35:09,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873782640] [2022-11-19 08:35:09,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:35:09,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:35:09,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:35:09,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:35:09,595 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:35:09,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873782640] [2022-11-19 08:35:09,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873782640] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:35:09,599 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:35:09,599 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-19 08:35:09,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446959985] [2022-11-19 08:35:09,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:35:09,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 08:35:09,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:35:09,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 08:35:09,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-19 08:35:09,601 INFO L87 Difference]: Start difference. First operand 366 states and 453 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) [2022-11-19 08:35:11,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:35:11,028 INFO L93 Difference]: Finished difference Result 688 states and 857 transitions. [2022-11-19 08:35:11,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-19 08:35:11,029 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 [2022-11-19 08:35:11,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:35:11,031 INFO L225 Difference]: With dead ends: 688 [2022-11-19 08:35:11,031 INFO L226 Difference]: Without dead ends: 630 [2022-11-19 08:35:11,031 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2022-11-19 08:35:11,032 INFO L413 NwaCegarLoop]: 387 mSDtfsCounter, 1625 mSDsluCounter, 1385 mSDsCounter, 0 mSdLazyCounter, 1270 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1625 SdHoareTripleChecker+Valid, 1772 SdHoareTripleChecker+Invalid, 1275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:35:11,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1625 Valid, 1772 Invalid, 1275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1270 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-19 08:35:11,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2022-11-19 08:35:11,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 366. [2022-11-19 08:35:11,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 350 states have (on average 1.2914285714285714) internal successors, (452), 365 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:35:11,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 452 transitions. [2022-11-19 08:35:11,102 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 452 transitions. Word has length 78 [2022-11-19 08:35:11,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:35:11,103 INFO L495 AbstractCegarLoop]: Abstraction has 366 states and 452 transitions. [2022-11-19 08:35:11,103 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) [2022-11-19 08:35:11,103 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 452 transitions. [2022-11-19 08:35:11,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-19 08:35:11,105 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:35:11,105 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:35:11,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-19 08:35:11,106 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-19 08:35:11,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:35:11,106 INFO L85 PathProgramCache]: Analyzing trace with hash 2002078059, now seen corresponding path program 1 times [2022-11-19 08:35:11,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:35:11,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889704533] [2022-11-19 08:35:11,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:35:11,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:35:11,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:35:11,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:35:11,541 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:35:11,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889704533] [2022-11-19 08:35:11,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889704533] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:35:11,542 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:35:11,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-19 08:35:11,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050203855] [2022-11-19 08:35:11,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:35:11,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 08:35:11,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:35:11,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 08:35:11,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-19 08:35:11,547 INFO L87 Difference]: Start difference. First operand 366 states and 452 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) [2022-11-19 08:35:13,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:35:13,031 INFO L93 Difference]: Finished difference Result 660 states and 815 transitions. [2022-11-19 08:35:13,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-19 08:35:13,032 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 [2022-11-19 08:35:13,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:35:13,034 INFO L225 Difference]: With dead ends: 660 [2022-11-19 08:35:13,034 INFO L226 Difference]: Without dead ends: 614 [2022-11-19 08:35:13,034 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2022-11-19 08:35:13,035 INFO L413 NwaCegarLoop]: 353 mSDtfsCounter, 1527 mSDsluCounter, 1298 mSDsCounter, 0 mSdLazyCounter, 1302 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1527 SdHoareTripleChecker+Valid, 1651 SdHoareTripleChecker+Invalid, 1306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:35:13,035 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1527 Valid, 1651 Invalid, 1306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1302 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-19 08:35:13,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 614 states. [2022-11-19 08:35:13,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 614 to 366. [2022-11-19 08:35:13,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 350 states have (on average 1.2885714285714285) internal successors, (451), 365 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:35:13,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 451 transitions. [2022-11-19 08:35:13,146 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 451 transitions. Word has length 78 [2022-11-19 08:35:13,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:35:13,146 INFO L495 AbstractCegarLoop]: Abstraction has 366 states and 451 transitions. [2022-11-19 08:35:13,147 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) [2022-11-19 08:35:13,147 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 451 transitions. [2022-11-19 08:35:13,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-19 08:35:13,148 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:35:13,149 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:35:13,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-19 08:35:13,149 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-19 08:35:13,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:35:13,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1513420061, now seen corresponding path program 1 times [2022-11-19 08:35:13,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:35:13,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20179873] [2022-11-19 08:35:13,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:35:13,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:35:13,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:35:13,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:35:13,444 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:35:13,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20179873] [2022-11-19 08:35:13,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20179873] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:35:13,444 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:35:13,445 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-19 08:35:13,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763556307] [2022-11-19 08:35:13,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:35:13,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 08:35:13,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:35:13,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 08:35:13,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-19 08:35:13,448 INFO L87 Difference]: Start difference. First operand 366 states and 451 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) [2022-11-19 08:35:15,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:35:15,071 INFO L93 Difference]: Finished difference Result 719 states and 897 transitions. [2022-11-19 08:35:15,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-19 08:35:15,071 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 [2022-11-19 08:35:15,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:35:15,075 INFO L225 Difference]: With dead ends: 719 [2022-11-19 08:35:15,075 INFO L226 Difference]: Without dead ends: 638 [2022-11-19 08:35:15,076 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 [2022-11-19 08:35:15,077 INFO L413 NwaCegarLoop]: 427 mSDtfsCounter, 1107 mSDsluCounter, 1213 mSDsCounter, 0 mSdLazyCounter, 1307 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1107 SdHoareTripleChecker+Valid, 1640 SdHoareTripleChecker+Invalid, 1311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:35:15,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1107 Valid, 1640 Invalid, 1311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1307 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-19 08:35:15,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2022-11-19 08:35:15,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 366. [2022-11-19 08:35:15,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 350 states have (on average 1.2857142857142858) internal successors, (450), 365 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:35:15,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 450 transitions. [2022-11-19 08:35:15,190 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 450 transitions. Word has length 78 [2022-11-19 08:35:15,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:35:15,190 INFO L495 AbstractCegarLoop]: Abstraction has 366 states and 450 transitions. [2022-11-19 08:35:15,191 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) [2022-11-19 08:35:15,191 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 450 transitions. [2022-11-19 08:35:15,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-19 08:35:15,192 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:35:15,192 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:35:15,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-19 08:35:15,193 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-19 08:35:15,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:35:15,194 INFO L85 PathProgramCache]: Analyzing trace with hash -675860338, now seen corresponding path program 1 times [2022-11-19 08:35:15,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:35:15,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063652373] [2022-11-19 08:35:15,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:35:15,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:35:15,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:35:15,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:35:15,843 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:35:15,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063652373] [2022-11-19 08:35:15,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063652373] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:35:15,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:35:15,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-19 08:35:15,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70687144] [2022-11-19 08:35:15,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:35:15,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-19 08:35:15,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:35:15,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-19 08:35:15,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-19 08:35:15,846 INFO L87 Difference]: Start difference. First operand 366 states and 450 transitions. Second operand has 11 states, 11 states have (on average 7.090909090909091) internal successors, (78), 10 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:35:18,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:35:18,847 INFO L93 Difference]: Finished difference Result 899 states and 1129 transitions. [2022-11-19 08:35:18,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-19 08:35:18,848 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.090909090909091) internal successors, (78), 10 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-11-19 08:35:18,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:35:18,853 INFO L225 Difference]: With dead ends: 899 [2022-11-19 08:35:18,853 INFO L226 Difference]: Without dead ends: 882 [2022-11-19 08:35:18,854 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2022-11-19 08:35:18,855 INFO L413 NwaCegarLoop]: 426 mSDtfsCounter, 3047 mSDsluCounter, 1364 mSDsCounter, 0 mSdLazyCounter, 1607 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3047 SdHoareTripleChecker+Valid, 1790 SdHoareTripleChecker+Invalid, 1734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 1607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-19 08:35:18,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3047 Valid, 1790 Invalid, 1734 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 1607 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-19 08:35:18,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 882 states. [2022-11-19 08:35:18,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 882 to 370. [2022-11-19 08:35:18,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 354 states have (on average 1.2824858757062148) internal successors, (454), 369 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:35:18,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 454 transitions. [2022-11-19 08:35:18,991 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 454 transitions. Word has length 78 [2022-11-19 08:35:18,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:35:18,992 INFO L495 AbstractCegarLoop]: Abstraction has 370 states and 454 transitions. [2022-11-19 08:35:18,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.090909090909091) internal successors, (78), 10 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:35:18,992 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 454 transitions. [2022-11-19 08:35:18,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-19 08:35:18,994 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:35:18,994 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:35:18,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-19 08:35:18,994 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-19 08:35:18,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:35:18,995 INFO L85 PathProgramCache]: Analyzing trace with hash 812673141, now seen corresponding path program 1 times [2022-11-19 08:35:18,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:35:18,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372373206] [2022-11-19 08:35:18,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:35:18,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:35:19,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:35:19,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:35:19,390 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:35:19,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372373206] [2022-11-19 08:35:19,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372373206] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:35:19,391 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:35:19,391 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-19 08:35:19,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247325751] [2022-11-19 08:35:19,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:35:19,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 08:35:19,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:35:19,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 08:35:19,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-19 08:35:19,393 INFO L87 Difference]: Start difference. First operand 370 states and 454 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) [2022-11-19 08:35:20,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:35:20,952 INFO L93 Difference]: Finished difference Result 623 states and 762 transitions. [2022-11-19 08:35:20,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-19 08:35:20,952 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 [2022-11-19 08:35:20,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:35:20,955 INFO L225 Difference]: With dead ends: 623 [2022-11-19 08:35:20,956 INFO L226 Difference]: Without dead ends: 618 [2022-11-19 08:35:20,959 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2022-11-19 08:35:20,960 INFO L413 NwaCegarLoop]: 353 mSDtfsCounter, 1519 mSDsluCounter, 1299 mSDsCounter, 0 mSdLazyCounter, 1295 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1519 SdHoareTripleChecker+Valid, 1652 SdHoareTripleChecker+Invalid, 1299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:35:20,960 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1519 Valid, 1652 Invalid, 1299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1295 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-19 08:35:20,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 618 states. [2022-11-19 08:35:21,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 618 to 370. [2022-11-19 08:35:21,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 354 states have (on average 1.2796610169491525) internal successors, (453), 369 states have internal predecessors, (453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:35:21,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 453 transitions. [2022-11-19 08:35:21,081 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 453 transitions. Word has length 78 [2022-11-19 08:35:21,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:35:21,082 INFO L495 AbstractCegarLoop]: Abstraction has 370 states and 453 transitions. [2022-11-19 08:35:21,082 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) [2022-11-19 08:35:21,082 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 453 transitions. [2022-11-19 08:35:21,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-19 08:35:21,084 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:35:21,084 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:35:21,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-19 08:35:21,085 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-19 08:35:21,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:35:21,085 INFO L85 PathProgramCache]: Analyzing trace with hash 406757360, now seen corresponding path program 1 times [2022-11-19 08:35:21,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:35:21,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023369321] [2022-11-19 08:35:21,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:35:21,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:35:21,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:35:21,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:35:21,712 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:35:21,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023369321] [2022-11-19 08:35:21,713 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023369321] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:35:21,713 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:35:21,713 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-19 08:35:21,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874434203] [2022-11-19 08:35:21,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:35:21,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-19 08:35:21,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:35:21,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-19 08:35:21,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-19 08:35:21,715 INFO L87 Difference]: Start difference. First operand 370 states and 453 transitions. Second operand has 11 states, 11 states have (on average 7.090909090909091) internal successors, (78), 10 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:35:24,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:35:24,828 INFO L93 Difference]: Finished difference Result 839 states and 1045 transitions. [2022-11-19 08:35:24,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-19 08:35:24,829 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.090909090909091) internal successors, (78), 10 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-11-19 08:35:24,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:35:24,833 INFO L225 Difference]: With dead ends: 839 [2022-11-19 08:35:24,833 INFO L226 Difference]: Without dead ends: 834 [2022-11-19 08:35:24,834 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2022-11-19 08:35:24,835 INFO L413 NwaCegarLoop]: 339 mSDtfsCounter, 3224 mSDsluCounter, 1424 mSDsCounter, 0 mSdLazyCounter, 1629 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3224 SdHoareTripleChecker+Valid, 1763 SdHoareTripleChecker+Invalid, 1769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 1629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-19 08:35:24,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3224 Valid, 1763 Invalid, 1769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 1629 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-19 08:35:24,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2022-11-19 08:35:24,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 374. [2022-11-19 08:35:24,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 358 states have (on average 1.276536312849162) internal successors, (457), 373 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:35:24,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 457 transitions. [2022-11-19 08:35:24,957 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 457 transitions. Word has length 78 [2022-11-19 08:35:24,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:35:24,958 INFO L495 AbstractCegarLoop]: Abstraction has 374 states and 457 transitions. [2022-11-19 08:35:24,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.090909090909091) internal successors, (78), 10 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:35:24,958 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 457 transitions. [2022-11-19 08:35:24,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-19 08:35:24,960 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:35:24,960 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:35:24,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-19 08:35:24,960 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-19 08:35:24,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:35:24,961 INFO L85 PathProgramCache]: Analyzing trace with hash 1340403830, now seen corresponding path program 1 times [2022-11-19 08:35:24,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:35:24,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848575482] [2022-11-19 08:35:24,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:35:24,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:35:24,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:35:25,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:35:25,333 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:35:25,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848575482] [2022-11-19 08:35:25,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848575482] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:35:25,334 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:35:25,334 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-19 08:35:25,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316644441] [2022-11-19 08:35:25,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:35:25,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 08:35:25,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:35:25,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 08:35:25,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-19 08:35:25,336 INFO L87 Difference]: Start difference. First operand 374 states and 457 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) [2022-11-19 08:35:26,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:35:26,969 INFO L93 Difference]: Finished difference Result 661 states and 812 transitions. [2022-11-19 08:35:26,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-19 08:35:26,972 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 [2022-11-19 08:35:26,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:35:26,976 INFO L225 Difference]: With dead ends: 661 [2022-11-19 08:35:26,976 INFO L226 Difference]: Without dead ends: 618 [2022-11-19 08:35:26,977 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2022-11-19 08:35:26,977 INFO L413 NwaCegarLoop]: 340 mSDtfsCounter, 1523 mSDsluCounter, 1277 mSDsCounter, 0 mSdLazyCounter, 1279 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1523 SdHoareTripleChecker+Valid, 1617 SdHoareTripleChecker+Invalid, 1283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:35:26,978 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1523 Valid, 1617 Invalid, 1283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1279 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-19 08:35:26,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 618 states. [2022-11-19 08:35:27,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 618 to 374. [2022-11-19 08:35:27,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 358 states have (on average 1.2737430167597765) internal successors, (456), 373 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:35:27,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 456 transitions. [2022-11-19 08:35:27,112 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 456 transitions. Word has length 78 [2022-11-19 08:35:27,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:35:27,112 INFO L495 AbstractCegarLoop]: Abstraction has 374 states and 456 transitions. [2022-11-19 08:35:27,113 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) [2022-11-19 08:35:27,113 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 456 transitions. [2022-11-19 08:35:27,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-19 08:35:27,114 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:35:27,114 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] [2022-11-19 08:35:27,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-19 08:35:27,115 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-19 08:35:27,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:35:27,116 INFO L85 PathProgramCache]: Analyzing trace with hash 1562286502, now seen corresponding path program 1 times [2022-11-19 08:35:27,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:35:27,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319047604] [2022-11-19 08:35:27,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:35:27,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:35:27,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:35:27,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:35:27,459 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:35:27,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319047604] [2022-11-19 08:35:27,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319047604] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:35:27,459 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:35:27,459 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-19 08:35:27,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410600199] [2022-11-19 08:35:27,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:35:27,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 08:35:27,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:35:27,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 08:35:27,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-19 08:35:27,463 INFO L87 Difference]: Start difference. First operand 374 states and 456 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) [2022-11-19 08:35:29,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:35:29,144 INFO L93 Difference]: Finished difference Result 664 states and 814 transitions. [2022-11-19 08:35:29,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-19 08:35:29,144 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 [2022-11-19 08:35:29,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:35:29,149 INFO L225 Difference]: With dead ends: 664 [2022-11-19 08:35:29,149 INFO L226 Difference]: Without dead ends: 618 [2022-11-19 08:35:29,150 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2022-11-19 08:35:29,151 INFO L413 NwaCegarLoop]: 348 mSDtfsCounter, 1514 mSDsluCounter, 1289 mSDsCounter, 0 mSdLazyCounter, 1278 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1514 SdHoareTripleChecker+Valid, 1637 SdHoareTripleChecker+Invalid, 1282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:35:29,151 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1514 Valid, 1637 Invalid, 1282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1278 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-19 08:35:29,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 618 states. [2022-11-19 08:35:29,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 618 to 374. [2022-11-19 08:35:29,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 358 states have (on average 1.270949720670391) internal successors, (455), 373 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:35:29,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 455 transitions. [2022-11-19 08:35:29,259 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 455 transitions. Word has length 78 [2022-11-19 08:35:29,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:35:29,260 INFO L495 AbstractCegarLoop]: Abstraction has 374 states and 455 transitions. [2022-11-19 08:35:29,260 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) [2022-11-19 08:35:29,260 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 455 transitions. [2022-11-19 08:35:29,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-19 08:35:29,262 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:35:29,262 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:35:29,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-19 08:35:29,263 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-19 08:35:29,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:35:29,263 INFO L85 PathProgramCache]: Analyzing trace with hash 978066431, now seen corresponding path program 1 times [2022-11-19 08:35:29,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:35:29,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562410841] [2022-11-19 08:35:29,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:35:29,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:35:29,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:35:29,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:35:29,810 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:35:29,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562410841] [2022-11-19 08:35:29,810 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562410841] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:35:29,810 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:35:29,811 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-19 08:35:29,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474015062] [2022-11-19 08:35:29,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:35:29,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-19 08:35:29,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:35:29,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-19 08:35:29,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-19 08:35:29,812 INFO L87 Difference]: Start difference. First operand 374 states and 455 transitions. Second operand has 11 states, 11 states have (on average 7.090909090909091) internal successors, (78), 10 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:35:33,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:35:33,234 INFO L93 Difference]: Finished difference Result 944 states and 1183 transitions. [2022-11-19 08:35:33,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-19 08:35:33,236 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.090909090909091) internal successors, (78), 10 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-11-19 08:35:33,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:35:33,240 INFO L225 Difference]: With dead ends: 944 [2022-11-19 08:35:33,240 INFO L226 Difference]: Without dead ends: 886 [2022-11-19 08:35:33,241 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2022-11-19 08:35:33,242 INFO L413 NwaCegarLoop]: 415 mSDtfsCounter, 3065 mSDsluCounter, 1722 mSDsCounter, 0 mSdLazyCounter, 1895 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3065 SdHoareTripleChecker+Valid, 2137 SdHoareTripleChecker+Invalid, 2025 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 1895 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-19 08:35:33,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3065 Valid, 2137 Invalid, 2025 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 1895 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-19 08:35:33,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 886 states. [2022-11-19 08:35:33,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 886 to 378. [2022-11-19 08:35:33,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 362 states have (on average 1.2679558011049723) internal successors, (459), 377 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:35:33,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 459 transitions. [2022-11-19 08:35:33,366 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 459 transitions. Word has length 78 [2022-11-19 08:35:33,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:35:33,366 INFO L495 AbstractCegarLoop]: Abstraction has 378 states and 459 transitions. [2022-11-19 08:35:33,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.090909090909091) internal successors, (78), 10 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:35:33,367 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 459 transitions. [2022-11-19 08:35:33,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-19 08:35:33,368 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:35:33,368 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:35:33,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-19 08:35:33,369 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-19 08:35:33,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:35:33,369 INFO L85 PathProgramCache]: Analyzing trace with hash -1364256377, now seen corresponding path program 1 times [2022-11-19 08:35:33,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:35:33,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648277825] [2022-11-19 08:35:33,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:35:33,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:35:33,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:35:33,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:35:33,681 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:35:33,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648277825] [2022-11-19 08:35:33,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648277825] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:35:33,682 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:35:33,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-19 08:35:33,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409494469] [2022-11-19 08:35:33,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:35:33,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 08:35:33,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:35:33,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 08:35:33,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-19 08:35:33,684 INFO L87 Difference]: Start difference. First operand 378 states and 459 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) [2022-11-19 08:35:35,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:35:35,334 INFO L93 Difference]: Finished difference Result 668 states and 817 transitions. [2022-11-19 08:35:35,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-19 08:35:35,335 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 [2022-11-19 08:35:35,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:35:35,338 INFO L225 Difference]: With dead ends: 668 [2022-11-19 08:35:35,339 INFO L226 Difference]: Without dead ends: 622 [2022-11-19 08:35:35,340 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 [2022-11-19 08:35:35,340 INFO L413 NwaCegarLoop]: 339 mSDtfsCounter, 1707 mSDsluCounter, 1013 mSDsCounter, 0 mSdLazyCounter, 1141 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1707 SdHoareTripleChecker+Valid, 1352 SdHoareTripleChecker+Invalid, 1145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-19 08:35:35,341 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1707 Valid, 1352 Invalid, 1145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1141 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-19 08:35:35,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2022-11-19 08:35:35,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 378. [2022-11-19 08:35:35,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 362 states have (on average 1.2651933701657458) internal successors, (458), 377 states have internal predecessors, (458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:35:35,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 458 transitions. [2022-11-19 08:35:35,500 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 458 transitions. Word has length 78 [2022-11-19 08:35:35,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:35:35,500 INFO L495 AbstractCegarLoop]: Abstraction has 378 states and 458 transitions. [2022-11-19 08:35:35,501 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) [2022-11-19 08:35:35,501 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 458 transitions. [2022-11-19 08:35:35,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-19 08:35:35,502 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:35:35,502 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:35:35,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-19 08:35:35,503 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-19 08:35:35,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:35:35,504 INFO L85 PathProgramCache]: Analyzing trace with hash 2113755607, now seen corresponding path program 1 times [2022-11-19 08:35:35,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:35:35,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026647524] [2022-11-19 08:35:35,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:35:35,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:35:35,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:35:35,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:35:35,858 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:35:35,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026647524] [2022-11-19 08:35:35,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026647524] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:35:35,859 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:35:35,859 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-19 08:35:35,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327543095] [2022-11-19 08:35:35,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:35:35,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 08:35:35,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:35:35,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 08:35:35,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-19 08:35:35,863 INFO L87 Difference]: Start difference. First operand 378 states and 458 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) [2022-11-19 08:35:37,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:35:37,511 INFO L93 Difference]: Finished difference Result 665 states and 812 transitions. [2022-11-19 08:35:37,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-19 08:35:37,512 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 [2022-11-19 08:35:37,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:35:37,515 INFO L225 Difference]: With dead ends: 665 [2022-11-19 08:35:37,515 INFO L226 Difference]: Without dead ends: 622 [2022-11-19 08:35:37,516 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2022-11-19 08:35:37,516 INFO L413 NwaCegarLoop]: 338 mSDtfsCounter, 1515 mSDsluCounter, 1274 mSDsCounter, 0 mSdLazyCounter, 1262 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1515 SdHoareTripleChecker+Valid, 1612 SdHoareTripleChecker+Invalid, 1266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-19 08:35:37,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1515 Valid, 1612 Invalid, 1266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1262 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-19 08:35:37,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2022-11-19 08:35:37,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 378. [2022-11-19 08:35:37,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 362 states have (on average 1.2624309392265194) internal successors, (457), 377 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:35:37,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 457 transitions. [2022-11-19 08:35:37,688 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 457 transitions. Word has length 78 [2022-11-19 08:35:37,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:35:37,688 INFO L495 AbstractCegarLoop]: Abstraction has 378 states and 457 transitions. [2022-11-19 08:35:37,689 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) [2022-11-19 08:35:37,689 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 457 transitions. [2022-11-19 08:35:37,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-19 08:35:37,691 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:35:37,691 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:35:37,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-19 08:35:37,692 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-19 08:35:37,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:35:37,692 INFO L85 PathProgramCache]: Analyzing trace with hash 390823278, now seen corresponding path program 1 times [2022-11-19 08:35:37,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:35:37,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470654715] [2022-11-19 08:35:37,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:35:37,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:35:37,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:35:38,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:35:38,150 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:35:38,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470654715] [2022-11-19 08:35:38,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470654715] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:35:38,151 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:35:38,151 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-19 08:35:38,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533076088] [2022-11-19 08:35:38,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:35:38,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 08:35:38,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:35:38,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 08:35:38,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-19 08:35:38,154 INFO L87 Difference]: Start difference. First operand 378 states and 457 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) [2022-11-19 08:35:39,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:35:39,893 INFO L93 Difference]: Finished difference Result 627 states and 759 transitions. [2022-11-19 08:35:39,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-19 08:35:39,894 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 [2022-11-19 08:35:39,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:35:39,896 INFO L225 Difference]: With dead ends: 627 [2022-11-19 08:35:39,896 INFO L226 Difference]: Without dead ends: 622 [2022-11-19 08:35:39,896 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 [2022-11-19 08:35:39,897 INFO L413 NwaCegarLoop]: 339 mSDtfsCounter, 1165 mSDsluCounter, 1015 mSDsCounter, 0 mSdLazyCounter, 1128 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1165 SdHoareTripleChecker+Valid, 1354 SdHoareTripleChecker+Invalid, 1132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-19 08:35:39,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1165 Valid, 1354 Invalid, 1132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1128 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-19 08:35:39,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2022-11-19 08:35:40,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 378. [2022-11-19 08:35:40,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 362 states have (on average 1.2596685082872927) internal successors, (456), 377 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:35:40,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 456 transitions. [2022-11-19 08:35:40,025 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 456 transitions. Word has length 78 [2022-11-19 08:35:40,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:35:40,025 INFO L495 AbstractCegarLoop]: Abstraction has 378 states and 456 transitions. [2022-11-19 08:35:40,026 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) [2022-11-19 08:35:40,026 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 456 transitions. [2022-11-19 08:35:40,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-19 08:35:40,027 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:35:40,027 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:35:40,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-19 08:35:40,028 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-19 08:35:40,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:35:40,029 INFO L85 PathProgramCache]: Analyzing trace with hash -1188609875, now seen corresponding path program 1 times [2022-11-19 08:35:40,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:35:40,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65639877] [2022-11-19 08:35:40,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:35:40,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:35:40,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:35:40,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:35:40,401 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:35:40,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65639877] [2022-11-19 08:35:40,402 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65639877] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:35:40,402 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:35:40,402 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-19 08:35:40,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959455917] [2022-11-19 08:35:40,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:35:40,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 08:35:40,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:35:40,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 08:35:40,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-19 08:35:40,405 INFO L87 Difference]: Start difference. First operand 378 states and 456 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) [2022-11-19 08:35:42,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:35:42,194 INFO L93 Difference]: Finished difference Result 665 states and 809 transitions. [2022-11-19 08:35:42,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-19 08:35:42,195 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 [2022-11-19 08:35:42,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:35:42,198 INFO L225 Difference]: With dead ends: 665 [2022-11-19 08:35:42,198 INFO L226 Difference]: Without dead ends: 622 [2022-11-19 08:35:42,199 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2022-11-19 08:35:42,200 INFO L413 NwaCegarLoop]: 370 mSDtfsCounter, 1507 mSDsluCounter, 1323 mSDsCounter, 0 mSdLazyCounter, 1318 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1507 SdHoareTripleChecker+Valid, 1693 SdHoareTripleChecker+Invalid, 1321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:35:42,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1507 Valid, 1693 Invalid, 1321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1318 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-19 08:35:42,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2022-11-19 08:35:42,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 378. [2022-11-19 08:35:42,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 362 states have (on average 1.2569060773480663) internal successors, (455), 377 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:35:42,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 455 transitions. [2022-11-19 08:35:42,342 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 455 transitions. Word has length 78 [2022-11-19 08:35:42,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:35:42,342 INFO L495 AbstractCegarLoop]: Abstraction has 378 states and 455 transitions. [2022-11-19 08:35:42,343 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) [2022-11-19 08:35:42,343 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 455 transitions. [2022-11-19 08:35:42,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-19 08:35:42,344 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:35:42,345 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:35:42,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-19 08:35:42,345 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-19 08:35:42,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:35:42,346 INFO L85 PathProgramCache]: Analyzing trace with hash 848969234, now seen corresponding path program 1 times [2022-11-19 08:35:42,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:35:42,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939793854] [2022-11-19 08:35:42,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:35:42,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:35:42,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:35:42,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:35:42,641 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:35:42,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939793854] [2022-11-19 08:35:42,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939793854] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:35:42,642 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:35:42,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-19 08:35:42,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793510472] [2022-11-19 08:35:42,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:35:42,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 08:35:42,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:35:42,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 08:35:42,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-19 08:35:42,645 INFO L87 Difference]: Start difference. First operand 378 states and 455 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) [2022-11-19 08:35:44,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:35:44,287 INFO L93 Difference]: Finished difference Result 665 states and 808 transitions. [2022-11-19 08:35:44,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-19 08:35:44,288 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 [2022-11-19 08:35:44,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:35:44,291 INFO L225 Difference]: With dead ends: 665 [2022-11-19 08:35:44,291 INFO L226 Difference]: Without dead ends: 622 [2022-11-19 08:35:44,292 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 [2022-11-19 08:35:44,292 INFO L413 NwaCegarLoop]: 339 mSDtfsCounter, 1168 mSDsluCounter, 1013 mSDsCounter, 0 mSdLazyCounter, 1114 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1168 SdHoareTripleChecker+Valid, 1352 SdHoareTripleChecker+Invalid, 1118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-19 08:35:44,293 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1168 Valid, 1352 Invalid, 1118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1114 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-19 08:35:44,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2022-11-19 08:35:44,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 378. [2022-11-19 08:35:44,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 362 states have (on average 1.2541436464088398) internal successors, (454), 377 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:35:44,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 454 transitions. [2022-11-19 08:35:44,462 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 454 transitions. Word has length 78 [2022-11-19 08:35:44,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:35:44,463 INFO L495 AbstractCegarLoop]: Abstraction has 378 states and 454 transitions. [2022-11-19 08:35:44,463 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) [2022-11-19 08:35:44,463 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 454 transitions. [2022-11-19 08:35:44,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-19 08:35:44,464 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:35:44,464 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:35:44,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-19 08:35:44,465 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-19 08:35:44,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:35:44,465 INFO L85 PathProgramCache]: Analyzing trace with hash 2131483169, now seen corresponding path program 1 times [2022-11-19 08:35:44,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:35:44,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978136652] [2022-11-19 08:35:44,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:35:44,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:35:44,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:35:44,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:35:44,771 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:35:44,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978136652] [2022-11-19 08:35:44,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978136652] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:35:44,772 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:35:44,772 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-19 08:35:44,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35096672] [2022-11-19 08:35:44,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:35:44,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 08:35:44,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:35:44,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 08:35:44,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-19 08:35:44,776 INFO L87 Difference]: Start difference. First operand 378 states and 454 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) [2022-11-19 08:35:46,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:35:46,438 INFO L93 Difference]: Finished difference Result 627 states and 754 transitions. [2022-11-19 08:35:46,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-19 08:35:46,439 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 [2022-11-19 08:35:46,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:35:46,441 INFO L225 Difference]: With dead ends: 627 [2022-11-19 08:35:46,441 INFO L226 Difference]: Without dead ends: 622 [2022-11-19 08:35:46,441 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-19 08:35:46,442 INFO L413 NwaCegarLoop]: 342 mSDtfsCounter, 1690 mSDsluCounter, 1020 mSDsCounter, 0 mSdLazyCounter, 1115 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1690 SdHoareTripleChecker+Valid, 1362 SdHoareTripleChecker+Invalid, 1119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-19 08:35:46,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1690 Valid, 1362 Invalid, 1119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1115 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-19 08:35:46,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2022-11-19 08:35:46,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 374. [2022-11-19 08:35:46,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 358 states have (on average 1.2541899441340782) internal successors, (449), 373 states have internal predecessors, (449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:35:46,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 449 transitions. [2022-11-19 08:35:46,594 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 449 transitions. Word has length 79 [2022-11-19 08:35:46,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:35:46,595 INFO L495 AbstractCegarLoop]: Abstraction has 374 states and 449 transitions. [2022-11-19 08:35:46,595 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) [2022-11-19 08:35:46,595 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 449 transitions. [2022-11-19 08:35:46,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-19 08:35:46,597 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:35:46,597 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:35:46,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-19 08:35:46,597 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-19 08:35:46,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:35:46,598 INFO L85 PathProgramCache]: Analyzing trace with hash -656117800, now seen corresponding path program 1 times [2022-11-19 08:35:46,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:35:46,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404492788] [2022-11-19 08:35:46,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:35:46,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:35:46,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:35:46,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:35:46,886 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:35:46,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404492788] [2022-11-19 08:35:46,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404492788] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:35:46,887 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:35:46,887 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-19 08:35:46,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479331681] [2022-11-19 08:35:46,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:35:46,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 08:35:46,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:35:46,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 08:35:46,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-19 08:35:46,890 INFO L87 Difference]: Start difference. First operand 374 states and 449 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) [2022-11-19 08:35:48,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:35:48,651 INFO L93 Difference]: Finished difference Result 647 states and 784 transitions. [2022-11-19 08:35:48,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-19 08:35:48,651 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 [2022-11-19 08:35:48,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:35:48,653 INFO L225 Difference]: With dead ends: 647 [2022-11-19 08:35:48,653 INFO L226 Difference]: Without dead ends: 630 [2022-11-19 08:35:48,653 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 [2022-11-19 08:35:48,654 INFO L413 NwaCegarLoop]: 395 mSDtfsCounter, 1569 mSDsluCounter, 1174 mSDsCounter, 0 mSdLazyCounter, 1220 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1569 SdHoareTripleChecker+Valid, 1569 SdHoareTripleChecker+Invalid, 1224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-19 08:35:48,654 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1569 Valid, 1569 Invalid, 1224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1220 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-19 08:35:48,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2022-11-19 08:35:48,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 370. [2022-11-19 08:35:48,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 354 states have (on average 1.2542372881355932) internal successors, (444), 369 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:35:48,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 444 transitions. [2022-11-19 08:35:48,784 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 444 transitions. Word has length 79 [2022-11-19 08:35:48,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:35:48,784 INFO L495 AbstractCegarLoop]: Abstraction has 370 states and 444 transitions. [2022-11-19 08:35:48,785 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) [2022-11-19 08:35:48,785 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 444 transitions. [2022-11-19 08:35:48,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-19 08:35:48,786 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:35:48,786 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:35:48,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-19 08:35:48,786 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-19 08:35:48,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:35:48,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1464004193, now seen corresponding path program 1 times [2022-11-19 08:35:48,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:35:48,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063461571] [2022-11-19 08:35:48,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:35:48,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:35:48,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:35:49,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:35:49,061 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:35:49,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063461571] [2022-11-19 08:35:49,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063461571] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:35:49,062 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:35:49,062 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-19 08:35:49,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902841658] [2022-11-19 08:35:49,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:35:49,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 08:35:49,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:35:49,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 08:35:49,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-19 08:35:49,065 INFO L87 Difference]: Start difference. First operand 370 states and 444 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) [2022-11-19 08:35:50,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:35:50,805 INFO L93 Difference]: Finished difference Result 688 states and 838 transitions. [2022-11-19 08:35:50,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-19 08:35:50,806 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 [2022-11-19 08:35:50,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:35:50,809 INFO L225 Difference]: With dead ends: 688 [2022-11-19 08:35:50,809 INFO L226 Difference]: Without dead ends: 630 [2022-11-19 08:35:50,810 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 [2022-11-19 08:35:50,811 INFO L413 NwaCegarLoop]: 408 mSDtfsCounter, 1057 mSDsluCounter, 1213 mSDsCounter, 0 mSdLazyCounter, 1240 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1057 SdHoareTripleChecker+Valid, 1621 SdHoareTripleChecker+Invalid, 1244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-19 08:35:50,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1057 Valid, 1621 Invalid, 1244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1240 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-19 08:35:50,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2022-11-19 08:35:50,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 366. [2022-11-19 08:35:50,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 350 states have (on average 1.2542857142857142) internal successors, (439), 365 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:35:50,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 439 transitions. [2022-11-19 08:35:50,947 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 439 transitions. Word has length 79 [2022-11-19 08:35:50,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:35:50,947 INFO L495 AbstractCegarLoop]: Abstraction has 366 states and 439 transitions. [2022-11-19 08:35:50,948 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) [2022-11-19 08:35:50,948 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 439 transitions. [2022-11-19 08:35:50,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-19 08:35:50,949 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:35:50,949 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:35:50,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-11-19 08:35:50,950 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-19 08:35:50,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:35:50,951 INFO L85 PathProgramCache]: Analyzing trace with hash -1401129693, now seen corresponding path program 1 times [2022-11-19 08:35:50,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:35:50,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238434090] [2022-11-19 08:35:50,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:35:50,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:35:50,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:35:51,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:35:51,276 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:35:51,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238434090] [2022-11-19 08:35:51,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238434090] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:35:51,277 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:35:51,277 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-19 08:35:51,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675942730] [2022-11-19 08:35:51,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:35:51,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 08:35:51,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:35:51,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 08:35:51,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-19 08:35:51,281 INFO L87 Difference]: Start difference. First operand 366 states and 439 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) [2022-11-19 08:35:53,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:35:53,038 INFO L93 Difference]: Finished difference Result 655 states and 793 transitions. [2022-11-19 08:35:53,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-19 08:35:53,040 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 [2022-11-19 08:35:53,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:35:53,043 INFO L225 Difference]: With dead ends: 655 [2022-11-19 08:35:53,043 INFO L226 Difference]: Without dead ends: 613 [2022-11-19 08:35:53,044 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2022-11-19 08:35:53,044 INFO L413 NwaCegarLoop]: 373 mSDtfsCounter, 1489 mSDsluCounter, 1359 mSDsCounter, 0 mSdLazyCounter, 1259 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1489 SdHoareTripleChecker+Valid, 1732 SdHoareTripleChecker+Invalid, 1263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:35:53,044 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1489 Valid, 1732 Invalid, 1263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1259 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-19 08:35:53,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2022-11-19 08:35:53,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 365. [2022-11-19 08:35:53,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 349 states have (on average 1.2521489971346704) internal successors, (437), 364 states have internal predecessors, (437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:35:53,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 437 transitions. [2022-11-19 08:35:53,178 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 437 transitions. Word has length 79 [2022-11-19 08:35:53,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:35:53,178 INFO L495 AbstractCegarLoop]: Abstraction has 365 states and 437 transitions. [2022-11-19 08:35:53,178 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) [2022-11-19 08:35:53,179 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 437 transitions. [2022-11-19 08:35:53,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-19 08:35:53,180 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:35:53,180 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] [2022-11-19 08:35:53,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-11-19 08:35:53,180 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-19 08:35:53,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:35:53,181 INFO L85 PathProgramCache]: Analyzing trace with hash 1269258616, now seen corresponding path program 1 times [2022-11-19 08:35:53,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:35:53,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683849579] [2022-11-19 08:35:53,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:35:53,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:35:53,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:35:54,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:35:54,042 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:35:54,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683849579] [2022-11-19 08:35:54,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683849579] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:35:54,042 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:35:54,042 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-19 08:35:54,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721785894] [2022-11-19 08:35:54,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:35:54,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-19 08:35:54,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:35:54,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-19 08:35:54,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-19 08:35:54,044 INFO L87 Difference]: Start difference. First operand 365 states and 437 transitions. Second operand has 13 states, 13 states have (on average 6.153846153846154) internal successors, (80), 12 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:35:57,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:35:57,573 INFO L93 Difference]: Finished difference Result 1203 states and 1474 transitions. [2022-11-19 08:35:57,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-19 08:35:57,573 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.153846153846154) internal successors, (80), 12 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-11-19 08:35:57,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:35:57,576 INFO L225 Difference]: With dead ends: 1203 [2022-11-19 08:35:57,576 INFO L226 Difference]: Without dead ends: 1146 [2022-11-19 08:35:57,577 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2022-11-19 08:35:57,577 INFO L413 NwaCegarLoop]: 992 mSDtfsCounter, 2774 mSDsluCounter, 5978 mSDsCounter, 0 mSdLazyCounter, 1397 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2774 SdHoareTripleChecker+Valid, 6970 SdHoareTripleChecker+Invalid, 1398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-19 08:35:57,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2774 Valid, 6970 Invalid, 1398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1397 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-19 08:35:57,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1146 states. [2022-11-19 08:35:57,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1146 to 349. [2022-11-19 08:35:57,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 335 states have (on average 1.2477611940298508) internal successors, (418), 348 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:35:57,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 418 transitions. [2022-11-19 08:35:57,799 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 418 transitions. Word has length 80 [2022-11-19 08:35:57,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:35:57,799 INFO L495 AbstractCegarLoop]: Abstraction has 349 states and 418 transitions. [2022-11-19 08:35:57,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.153846153846154) internal successors, (80), 12 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:35:57,800 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 418 transitions. [2022-11-19 08:35:57,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-19 08:35:57,800 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:35:57,801 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:35:57,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-11-19 08:35:57,801 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-19 08:35:57,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:35:57,802 INFO L85 PathProgramCache]: Analyzing trace with hash 1637753759, now seen corresponding path program 1 times [2022-11-19 08:35:57,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:35:57,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820960695] [2022-11-19 08:35:57,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:35:57,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:35:57,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:35:58,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:35:58,481 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:35:58,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820960695] [2022-11-19 08:35:58,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820960695] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:35:58,482 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:35:58,482 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-19 08:35:58,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029413639] [2022-11-19 08:35:58,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:35:58,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-19 08:35:58,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:35:58,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-19 08:35:58,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-19 08:35:58,484 INFO L87 Difference]: Start difference. First operand 349 states and 418 transitions. Second operand has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 11 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:36:00,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:36:00,323 INFO L93 Difference]: Finished difference Result 564 states and 670 transitions. [2022-11-19 08:36:00,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-19 08:36:00,324 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 11 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-11-19 08:36:00,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:36:00,327 INFO L225 Difference]: With dead ends: 564 [2022-11-19 08:36:00,327 INFO L226 Difference]: Without dead ends: 519 [2022-11-19 08:36:00,327 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-11-19 08:36:00,328 INFO L413 NwaCegarLoop]: 377 mSDtfsCounter, 1934 mSDsluCounter, 1782 mSDsCounter, 0 mSdLazyCounter, 1031 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1934 SdHoareTripleChecker+Valid, 2159 SdHoareTripleChecker+Invalid, 1032 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1031 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-19 08:36:00,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1934 Valid, 2159 Invalid, 1032 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1031 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-19 08:36:00,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2022-11-19 08:36:00,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 345. [2022-11-19 08:36:00,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 332 states have (on average 1.2439759036144578) internal successors, (413), 344 states have internal predecessors, (413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:36:00,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 413 transitions. [2022-11-19 08:36:00,541 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 413 transitions. Word has length 80 [2022-11-19 08:36:00,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:36:00,541 INFO L495 AbstractCegarLoop]: Abstraction has 345 states and 413 transitions. [2022-11-19 08:36:00,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 11 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:36:00,542 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 413 transitions. [2022-11-19 08:36:00,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-19 08:36:00,543 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:36:00,543 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:36:00,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-11-19 08:36:00,544 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)] === [2022-11-19 08:36:00,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:36:00,544 INFO L85 PathProgramCache]: Analyzing trace with hash 652259760, now seen corresponding path program 1 times [2022-11-19 08:36:00,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:36:00,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671889212] [2022-11-19 08:36:00,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:36:00,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:36:00,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:36:01,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:36:01,288 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:36:01,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671889212] [2022-11-19 08:36:01,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671889212] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:36:01,288 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:36:01,288 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-19 08:36:01,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939508930] [2022-11-19 08:36:01,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:36:01,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-19 08:36:01,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:36:01,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-19 08:36:01,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-19 08:36:01,290 INFO L87 Difference]: Start difference. First operand 345 states and 413 transitions. Second operand has 13 states, 13 states have (on average 6.153846153846154) internal successors, (80), 12 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:36:03,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:36:03,392 INFO L93 Difference]: Finished difference Result 815 states and 972 transitions. [2022-11-19 08:36:03,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-19 08:36:03,393 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.153846153846154) internal successors, (80), 12 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-11-19 08:36:03,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:36:03,396 INFO L225 Difference]: With dead ends: 815 [2022-11-19 08:36:03,396 INFO L226 Difference]: Without dead ends: 763 [2022-11-19 08:36:03,396 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2022-11-19 08:36:03,397 INFO L413 NwaCegarLoop]: 697 mSDtfsCounter, 2051 mSDsluCounter, 3272 mSDsCounter, 0 mSdLazyCounter, 752 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2051 SdHoareTripleChecker+Valid, 3969 SdHoareTripleChecker+Invalid, 753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 752 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-19 08:36:03,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2051 Valid, 3969 Invalid, 753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 752 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-19 08:36:03,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 763 states. [2022-11-19 08:36:03,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 763 to 334. [2022-11-19 08:36:03,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 322 states have (on average 1.2391304347826086) internal successors, (399), 333 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:36:03,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 399 transitions. [2022-11-19 08:36:03,561 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 399 transitions. Word has length 80 [2022-11-19 08:36:03,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:36:03,562 INFO L495 AbstractCegarLoop]: Abstraction has 334 states and 399 transitions. [2022-11-19 08:36:03,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.153846153846154) internal successors, (80), 12 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:36:03,562 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 399 transitions. [2022-11-19 08:36:03,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-19 08:36:03,563 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:36:03,563 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:36:03,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-11-19 08:36:03,563 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-19 08:36:03,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:36:03,564 INFO L85 PathProgramCache]: Analyzing trace with hash 1080890953, now seen corresponding path program 1 times [2022-11-19 08:36:03,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:36:03,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061256278] [2022-11-19 08:36:03,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:36:03,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:36:03,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:36:04,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:36:04,225 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:36:04,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061256278] [2022-11-19 08:36:04,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061256278] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:36:04,225 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:36:04,226 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-19 08:36:04,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490471727] [2022-11-19 08:36:04,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:36:04,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-19 08:36:04,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:36:04,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-19 08:36:04,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-19 08:36:04,227 INFO L87 Difference]: Start difference. First operand 334 states and 399 transitions. Second operand has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 11 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:36:05,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:36:05,969 INFO L93 Difference]: Finished difference Result 733 states and 902 transitions. [2022-11-19 08:36:05,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-19 08:36:05,969 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 11 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-11-19 08:36:05,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:36:05,971 INFO L225 Difference]: With dead ends: 733 [2022-11-19 08:36:05,971 INFO L226 Difference]: Without dead ends: 629 [2022-11-19 08:36:05,972 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-11-19 08:36:05,972 INFO L413 NwaCegarLoop]: 676 mSDtfsCounter, 1561 mSDsluCounter, 2486 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1561 SdHoareTripleChecker+Valid, 3162 SdHoareTripleChecker+Invalid, 455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-19 08:36:05,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1561 Valid, 3162 Invalid, 455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 454 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-19 08:36:05,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 629 states. [2022-11-19 08:36:06,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 629 to 271. [2022-11-19 08:36:06,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 263 states have (on average 1.231939163498099) internal successors, (324), 270 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:36:06,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 324 transitions. [2022-11-19 08:36:06,131 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 324 transitions. Word has length 80 [2022-11-19 08:36:06,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:36:06,131 INFO L495 AbstractCegarLoop]: Abstraction has 271 states and 324 transitions. [2022-11-19 08:36:06,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 11 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:36:06,131 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 324 transitions. [2022-11-19 08:36:06,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-19 08:36:06,132 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:36:06,132 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:36:06,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-11-19 08:36:06,132 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-19 08:36:06,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:36:06,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1272157338, now seen corresponding path program 1 times [2022-11-19 08:36:06,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:36:06,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603830400] [2022-11-19 08:36:06,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:36:06,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:36:06,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:36:08,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:36:08,637 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:36:08,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603830400] [2022-11-19 08:36:08,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603830400] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:36:08,637 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:36:08,638 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-11-19 08:36:08,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776106930] [2022-11-19 08:36:08,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:36:08,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-11-19 08:36:08,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:36:08,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-11-19 08:36:08,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=727, Unknown=0, NotChecked=0, Total=812 [2022-11-19 08:36:08,640 INFO L87 Difference]: Start difference. First operand 271 states and 324 transitions. Second operand has 29 states, 29 states have (on average 2.7586206896551726) internal successors, (80), 28 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:36:18,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:36:18,080 INFO L93 Difference]: Finished difference Result 945 states and 1132 transitions. [2022-11-19 08:36:18,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-19 08:36:18,081 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 2.7586206896551726) internal successors, (80), 28 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-11-19 08:36:18,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:36:18,084 INFO L225 Difference]: With dead ends: 945 [2022-11-19 08:36:18,084 INFO L226 Difference]: Without dead ends: 900 [2022-11-19 08:36:18,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 366 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=461, Invalid=2191, Unknown=0, NotChecked=0, Total=2652 [2022-11-19 08:36:18,085 INFO L413 NwaCegarLoop]: 713 mSDtfsCounter, 2667 mSDsluCounter, 9651 mSDsCounter, 0 mSdLazyCounter, 6002 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2667 SdHoareTripleChecker+Valid, 10364 SdHoareTripleChecker+Invalid, 6022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 6002 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-11-19 08:36:18,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2667 Valid, 10364 Invalid, 6022 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [20 Valid, 6002 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2022-11-19 08:36:18,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 900 states. [2022-11-19 08:36:18,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 900 to 287. [2022-11-19 08:36:18,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 279 states have (on average 1.2329749103942653) internal successors, (344), 286 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:36:18,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 344 transitions. [2022-11-19 08:36:18,377 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 344 transitions. Word has length 80 [2022-11-19 08:36:18,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:36:18,378 INFO L495 AbstractCegarLoop]: Abstraction has 287 states and 344 transitions. [2022-11-19 08:36:18,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 2.7586206896551726) internal successors, (80), 28 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:36:18,378 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 344 transitions. [2022-11-19 08:36:18,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-19 08:36:18,379 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:36:18,380 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:36:18,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-11-19 08:36:18,380 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-19 08:36:18,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:36:18,381 INFO L85 PathProgramCache]: Analyzing trace with hash -659382271, now seen corresponding path program 1 times [2022-11-19 08:36:18,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:36:18,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605890804] [2022-11-19 08:36:18,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:36:18,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:36:18,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:36:18,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:36:18,947 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:36:18,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605890804] [2022-11-19 08:36:18,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605890804] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:36:18,948 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:36:18,948 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-19 08:36:18,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117693275] [2022-11-19 08:36:18,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:36:18,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-19 08:36:18,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:36:18,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-19 08:36:18,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-11-19 08:36:18,950 INFO L87 Difference]: Start difference. First operand 287 states and 344 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) [2022-11-19 08:36:20,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:36:20,560 INFO L93 Difference]: Finished difference Result 618 states and 760 transitions. [2022-11-19 08:36:20,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-19 08:36:20,561 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 [2022-11-19 08:36:20,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:36:20,563 INFO L225 Difference]: With dead ends: 618 [2022-11-19 08:36:20,563 INFO L226 Difference]: Without dead ends: 444 [2022-11-19 08:36:20,564 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=147, Invalid=359, Unknown=0, NotChecked=0, Total=506 [2022-11-19 08:36:20,564 INFO L413 NwaCegarLoop]: 325 mSDtfsCounter, 1361 mSDsluCounter, 832 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1361 SdHoareTripleChecker+Valid, 1157 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-19 08:36:20,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1361 Valid, 1157 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-19 08:36:20,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2022-11-19 08:36:20,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 154. [2022-11-19 08:36:20,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 151 states have (on average 1.1721854304635762) internal successors, (177), 153 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:36:20,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 177 transitions. [2022-11-19 08:36:20,693 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 177 transitions. Word has length 80 [2022-11-19 08:36:20,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:36:20,693 INFO L495 AbstractCegarLoop]: Abstraction has 154 states and 177 transitions. [2022-11-19 08:36:20,694 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) [2022-11-19 08:36:20,694 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 177 transitions. [2022-11-19 08:36:20,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-19 08:36:20,694 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:36:20,695 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:36:20,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-11-19 08:36:20,695 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-19 08:36:20,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:36:20,696 INFO L85 PathProgramCache]: Analyzing trace with hash 659418620, now seen corresponding path program 1 times [2022-11-19 08:36:20,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:36:20,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093145159] [2022-11-19 08:36:20,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:36:20,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:36:20,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:36:20,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:36:20,951 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:36:20,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093145159] [2022-11-19 08:36:20,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093145159] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:36:20,952 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:36:20,952 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-19 08:36:20,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739972955] [2022-11-19 08:36:20,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:36:20,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 08:36:20,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:36:20,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 08:36:20,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-19 08:36:20,954 INFO L87 Difference]: Start difference. First operand 154 states and 177 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) [2022-11-19 08:36:21,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:36:21,844 INFO L93 Difference]: Finished difference Result 281 states and 336 transitions. [2022-11-19 08:36:21,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-19 08:36:21,845 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 [2022-11-19 08:36:21,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:36:21,846 INFO L225 Difference]: With dead ends: 281 [2022-11-19 08:36:21,847 INFO L226 Difference]: Without dead ends: 222 [2022-11-19 08:36:21,847 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 [2022-11-19 08:36:21,848 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 612 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 612 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-19 08:36:21,848 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [612 Valid, 475 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-19 08:36:21,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2022-11-19 08:36:22,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 154. [2022-11-19 08:36:22,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 151 states have (on average 1.1655629139072847) internal successors, (176), 153 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:36:22,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 176 transitions. [2022-11-19 08:36:22,029 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 176 transitions. Word has length 81 [2022-11-19 08:36:22,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:36:22,030 INFO L495 AbstractCegarLoop]: Abstraction has 154 states and 176 transitions. [2022-11-19 08:36:22,030 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) [2022-11-19 08:36:22,030 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 176 transitions. [2022-11-19 08:36:22,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-19 08:36:22,031 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:36:22,031 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:36:22,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-11-19 08:36:22,032 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-19 08:36:22,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:36:22,032 INFO L85 PathProgramCache]: Analyzing trace with hash 110288228, now seen corresponding path program 1 times [2022-11-19 08:36:22,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:36:22,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501052468] [2022-11-19 08:36:22,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:36:22,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:36:22,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:36:22,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:36:22,524 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:36:22,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501052468] [2022-11-19 08:36:22,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501052468] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:36:22,524 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:36:22,524 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-19 08:36:22,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588701423] [2022-11-19 08:36:22,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:36:22,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-19 08:36:22,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:36:22,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-19 08:36:22,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-19 08:36:22,526 INFO L87 Difference]: Start difference. First operand 154 states and 176 transitions. Second operand has 11 states, 11 states have (on average 7.363636363636363) internal successors, (81), 10 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:36:24,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:36:24,496 INFO L93 Difference]: Finished difference Result 342 states and 411 transitions. [2022-11-19 08:36:24,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-19 08:36:24,497 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.363636363636363) internal successors, (81), 10 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-11-19 08:36:24,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:36:24,499 INFO L225 Difference]: With dead ends: 342 [2022-11-19 08:36:24,499 INFO L226 Difference]: Without dead ends: 335 [2022-11-19 08:36:24,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=193, Invalid=509, Unknown=0, NotChecked=0, Total=702 [2022-11-19 08:36:24,500 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 1240 mSDsluCounter, 587 mSDsCounter, 0 mSdLazyCounter, 675 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1240 SdHoareTripleChecker+Valid, 733 SdHoareTripleChecker+Invalid, 709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 675 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-19 08:36:24,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1240 Valid, 733 Invalid, 709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 675 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-19 08:36:24,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2022-11-19 08:36:24,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 158. [2022-11-19 08:36:24,631 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) [2022-11-19 08:36:24,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 180 transitions. [2022-11-19 08:36:24,632 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 180 transitions. Word has length 81 [2022-11-19 08:36:24,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:36:24,632 INFO L495 AbstractCegarLoop]: Abstraction has 158 states and 180 transitions. [2022-11-19 08:36:24,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.363636363636363) internal successors, (81), 10 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:36:24,632 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 180 transitions. [2022-11-19 08:36:24,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-19 08:36:24,633 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:36:24,633 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:36:24,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-11-19 08:36:24,634 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-19 08:36:24,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:36:24,635 INFO L85 PathProgramCache]: Analyzing trace with hash 1625170428, now seen corresponding path program 1 times [2022-11-19 08:36:24,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:36:24,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599202340] [2022-11-19 08:36:24,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:36:24,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:36:24,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:36:24,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:36:24,875 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:36:24,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599202340] [2022-11-19 08:36:24,876 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599202340] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:36:24,876 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:36:24,876 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-19 08:36:24,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279184780] [2022-11-19 08:36:24,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:36:24,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 08:36:24,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:36:24,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 08:36:24,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-19 08:36:24,878 INFO L87 Difference]: Start difference. First operand 158 states and 180 transitions. Second operand has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:36:25,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:36:25,762 INFO L93 Difference]: Finished difference Result 237 states and 273 transitions. [2022-11-19 08:36:25,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-19 08:36:25,763 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2022-11-19 08:36:25,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:36:25,763 INFO L225 Difference]: With dead ends: 237 [2022-11-19 08:36:25,764 INFO L226 Difference]: Without dead ends: 230 [2022-11-19 08:36:25,764 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2022-11-19 08:36:25,764 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 379 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 379 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-19 08:36:25,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [379 Valid, 568 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-19 08:36:25,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2022-11-19 08:36:25,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 154. [2022-11-19 08:36:25,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 151 states have (on average 1.1589403973509933) internal successors, (175), 153 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:36:25,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 175 transitions. [2022-11-19 08:36:25,898 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 175 transitions. Word has length 82 [2022-11-19 08:36:25,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:36:25,898 INFO L495 AbstractCegarLoop]: Abstraction has 154 states and 175 transitions. [2022-11-19 08:36:25,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:36:25,899 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 175 transitions. [2022-11-19 08:36:25,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-19 08:36:25,899 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:36:25,899 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:36:25,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-11-19 08:36:25,900 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-19 08:36:25,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:36:25,907 INFO L85 PathProgramCache]: Analyzing trace with hash -571562505, now seen corresponding path program 1 times [2022-11-19 08:36:25,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:36:25,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246533150] [2022-11-19 08:36:25,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:36:25,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:36:25,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:36:26,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:36:26,513 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:36:26,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246533150] [2022-11-19 08:36:26,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246533150] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:36:26,515 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:36:26,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-19 08:36:26,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255147458] [2022-11-19 08:36:26,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:36:26,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-19 08:36:26,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:36:26,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-19 08:36:26,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-19 08:36:26,517 INFO L87 Difference]: Start difference. First operand 154 states and 175 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) [2022-11-19 08:36:28,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:36:28,040 INFO L93 Difference]: Finished difference Result 318 states and 381 transitions. [2022-11-19 08:36:28,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-19 08:36:28,041 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 [2022-11-19 08:36:28,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:36:28,043 INFO L225 Difference]: With dead ends: 318 [2022-11-19 08:36:28,043 INFO L226 Difference]: Without dead ends: 312 [2022-11-19 08:36:28,043 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-11-19 08:36:28,044 INFO L413 NwaCegarLoop]: 305 mSDtfsCounter, 882 mSDsluCounter, 1264 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 882 SdHoareTripleChecker+Valid, 1569 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-19 08:36:28,044 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [882 Valid, 1569 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 435 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-19 08:36:28,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2022-11-19 08:36:28,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 148. [2022-11-19 08:36:28,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 146 states have (on average 1.1575342465753424) internal successors, (169), 147 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:36:28,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 169 transitions. [2022-11-19 08:36:28,182 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 169 transitions. Word has length 83 [2022-11-19 08:36:28,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:36:28,183 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 169 transitions. [2022-11-19 08:36:28,183 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) [2022-11-19 08:36:28,183 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 169 transitions. [2022-11-19 08:36:28,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-19 08:36:28,184 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:36:28,184 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:36:28,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-11-19 08:36:28,185 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-19 08:36:28,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:36:28,185 INFO L85 PathProgramCache]: Analyzing trace with hash 664227807, now seen corresponding path program 1 times [2022-11-19 08:36:28,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:36:28,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056332564] [2022-11-19 08:36:28,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:36:28,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:36:28,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:36:29,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:36:29,720 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:36:29,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056332564] [2022-11-19 08:36:29,720 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056332564] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:36:29,721 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:36:29,721 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-11-19 08:36:29,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992435261] [2022-11-19 08:36:29,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:36:29,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-19 08:36:29,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:36:29,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-19 08:36:29,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=576, Unknown=0, NotChecked=0, Total=650 [2022-11-19 08:36:29,723 INFO L87 Difference]: Start difference. First operand 148 states and 169 transitions. Second operand has 26 states, 26 states have (on average 3.1923076923076925) internal successors, (83), 26 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:36:35,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:36:35,176 INFO L93 Difference]: Finished difference Result 547 states and 652 transitions. [2022-11-19 08:36:35,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-19 08:36:35,177 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.1923076923076925) internal successors, (83), 26 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2022-11-19 08:36:35,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:36:35,179 INFO L225 Difference]: With dead ends: 547 [2022-11-19 08:36:35,179 INFO L226 Difference]: Without dead ends: 539 [2022-11-19 08:36:35,180 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 354 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=341, Invalid=1821, Unknown=0, NotChecked=0, Total=2162 [2022-11-19 08:36:35,180 INFO L413 NwaCegarLoop]: 438 mSDtfsCounter, 1147 mSDsluCounter, 6223 mSDsCounter, 0 mSdLazyCounter, 3421 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1147 SdHoareTripleChecker+Valid, 6661 SdHoareTripleChecker+Invalid, 3429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 3421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-11-19 08:36:35,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1147 Valid, 6661 Invalid, 3429 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 3421 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-11-19 08:36:35,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2022-11-19 08:36:35,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 167. [2022-11-19 08:36:35,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 165 states have (on average 1.1636363636363636) internal successors, (192), 166 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:36:35,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 192 transitions. [2022-11-19 08:36:35,343 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 192 transitions. Word has length 83 [2022-11-19 08:36:35,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:36:35,343 INFO L495 AbstractCegarLoop]: Abstraction has 167 states and 192 transitions. [2022-11-19 08:36:35,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.1923076923076925) internal successors, (83), 26 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:36:35,344 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 192 transitions. [2022-11-19 08:36:35,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-19 08:36:35,344 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:36:35,344 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:36:35,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-11-19 08:36:35,345 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-19 08:36:35,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:36:35,346 INFO L85 PathProgramCache]: Analyzing trace with hash 344900036, now seen corresponding path program 1 times [2022-11-19 08:36:35,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:36:35,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139116461] [2022-11-19 08:36:35,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:36:35,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:36:35,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:36:36,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:36:36,131 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:36:36,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139116461] [2022-11-19 08:36:36,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139116461] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:36:36,131 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:36:36,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-19 08:36:36,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383135449] [2022-11-19 08:36:36,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:36:36,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-19 08:36:36,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:36:36,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-19 08:36:36,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-19 08:36:36,133 INFO L87 Difference]: Start difference. First operand 167 states and 192 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) [2022-11-19 08:36:38,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:36:38,699 INFO L93 Difference]: Finished difference Result 435 states and 536 transitions. [2022-11-19 08:36:38,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-19 08:36:38,699 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 [2022-11-19 08:36:38,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:36:38,701 INFO L225 Difference]: With dead ends: 435 [2022-11-19 08:36:38,701 INFO L226 Difference]: Without dead ends: 409 [2022-11-19 08:36:38,702 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2022-11-19 08:36:38,703 INFO L413 NwaCegarLoop]: 376 mSDtfsCounter, 978 mSDsluCounter, 2136 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 978 SdHoareTripleChecker+Valid, 2512 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-19 08:36:38,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [978 Valid, 2512 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 516 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-19 08:36:38,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2022-11-19 08:36:38,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 130. [2022-11-19 08:36:38,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 129 states have (on average 1.1550387596899225) internal successors, (149), 129 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:36:38,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 149 transitions. [2022-11-19 08:36:38,851 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 149 transitions. Word has length 84 [2022-11-19 08:36:38,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:36:38,851 INFO L495 AbstractCegarLoop]: Abstraction has 130 states and 149 transitions. [2022-11-19 08:36:38,852 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) [2022-11-19 08:36:38,852 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 149 transitions. [2022-11-19 08:36:38,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-19 08:36:38,853 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:36:38,853 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:36:38,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-11-19 08:36:38,853 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-19 08:36:38,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:36:38,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1742565269, now seen corresponding path program 1 times [2022-11-19 08:36:38,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:36:38,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092413553] [2022-11-19 08:36:38,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:36:38,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:36:38,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:36:39,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:36:39,019 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:36:39,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092413553] [2022-11-19 08:36:39,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092413553] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:36:39,020 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:36:39,020 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:36:39,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156724951] [2022-11-19 08:36:39,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:36:39,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:36:39,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:36:39,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:36:39,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:36:39,022 INFO L87 Difference]: Start difference. First operand 130 states and 149 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:36:39,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:36:39,453 INFO L93 Difference]: Finished difference Result 212 states and 257 transitions. [2022-11-19 08:36:39,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:36:39,454 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2022-11-19 08:36:39,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:36:39,455 INFO L225 Difference]: With dead ends: 212 [2022-11-19 08:36:39,455 INFO L226 Difference]: Without dead ends: 171 [2022-11-19 08:36:39,456 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:36:39,456 INFO L413 NwaCegarLoop]: 182 mSDtfsCounter, 62 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 282 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 [2022-11-19 08:36:39,457 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 282 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 08:36:39,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2022-11-19 08:36:39,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 165. [2022-11-19 08:36:39,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 164 states have (on average 1.1951219512195121) internal successors, (196), 164 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:36:39,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 196 transitions. [2022-11-19 08:36:39,721 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 196 transitions. Word has length 99 [2022-11-19 08:36:39,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:36:39,721 INFO L495 AbstractCegarLoop]: Abstraction has 165 states and 196 transitions. [2022-11-19 08:36:39,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:36:39,722 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 196 transitions. [2022-11-19 08:36:39,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-11-19 08:36:39,722 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:36:39,723 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:36:39,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-11-19 08:36:39,723 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-19 08:36:39,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:36:39,724 INFO L85 PathProgramCache]: Analyzing trace with hash 441566509, now seen corresponding path program 1 times [2022-11-19 08:36:39,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:36:39,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454196808] [2022-11-19 08:36:39,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:36:39,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:36:39,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:36:39,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:36:39,872 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:36:39,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454196808] [2022-11-19 08:36:39,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454196808] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:36:39,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:36:39,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:36:39,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986375208] [2022-11-19 08:36:39,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:36:39,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:36:39,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:36:39,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:36:39,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:36:39,875 INFO L87 Difference]: Start difference. First operand 165 states and 196 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:36:40,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:36:40,525 INFO L93 Difference]: Finished difference Result 317 states and 398 transitions. [2022-11-19 08:36:40,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:36:40,526 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2022-11-19 08:36:40,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:36:40,527 INFO L225 Difference]: With dead ends: 317 [2022-11-19 08:36:40,527 INFO L226 Difference]: Without dead ends: 241 [2022-11-19 08:36:40,528 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:36:40,528 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 55 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 282 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 [2022-11-19 08:36:40,529 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 282 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 08:36:40,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2022-11-19 08:36:40,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 231. [2022-11-19 08:36:40,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 230 states have (on average 1.2347826086956522) internal successors, (284), 230 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:36:40,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 284 transitions. [2022-11-19 08:36:40,994 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 284 transitions. Word has length 102 [2022-11-19 08:36:40,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:36:40,994 INFO L495 AbstractCegarLoop]: Abstraction has 231 states and 284 transitions. [2022-11-19 08:36:40,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:36:40,994 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 284 transitions. [2022-11-19 08:36:40,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-11-19 08:36:40,995 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:36:40,995 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:36:40,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-11-19 08:36:40,995 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-19 08:36:40,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:36:40,996 INFO L85 PathProgramCache]: Analyzing trace with hash -1001097892, now seen corresponding path program 1 times [2022-11-19 08:36:40,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:36:40,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748770584] [2022-11-19 08:36:40,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:36:40,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:36:41,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:36:41,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:36:41,134 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:36:41,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748770584] [2022-11-19 08:36:41,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748770584] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:36:41,135 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:36:41,135 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:36:41,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362477967] [2022-11-19 08:36:41,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:36:41,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:36:41,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:36:41,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:36:41,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:36:41,137 INFO L87 Difference]: Start difference. First operand 231 states and 284 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:36:42,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:36:42,336 INFO L93 Difference]: Finished difference Result 515 states and 662 transitions. [2022-11-19 08:36:42,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:36:42,337 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2022-11-19 08:36:42,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:36:42,339 INFO L225 Difference]: With dead ends: 515 [2022-11-19 08:36:42,339 INFO L226 Difference]: Without dead ends: 373 [2022-11-19 08:36:42,339 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:36:42,340 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 48 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 282 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 [2022-11-19 08:36:42,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 282 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 08:36:42,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2022-11-19 08:36:43,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 355. [2022-11-19 08:36:43,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 354 states have (on average 1.265536723163842) internal successors, (448), 354 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:36:43,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 448 transitions. [2022-11-19 08:36:43,191 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 448 transitions. Word has length 105 [2022-11-19 08:36:43,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:36:43,192 INFO L495 AbstractCegarLoop]: Abstraction has 355 states and 448 transitions. [2022-11-19 08:36:43,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:36:43,192 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 448 transitions. [2022-11-19 08:36:43,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-11-19 08:36:43,193 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:36:43,193 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:36:43,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-11-19 08:36:43,194 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)] === [2022-11-19 08:36:43,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:36:43,194 INFO L85 PathProgramCache]: Analyzing trace with hash -950132518, now seen corresponding path program 1 times [2022-11-19 08:36:43,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:36:43,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365841274] [2022-11-19 08:36:43,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:36:43,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:36:43,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:36:43,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:36:43,310 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:36:43,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365841274] [2022-11-19 08:36:43,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365841274] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:36:43,311 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:36:43,311 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:36:43,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420170813] [2022-11-19 08:36:43,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:36:43,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:36:43,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:36:43,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:36:43,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:36:43,314 INFO L87 Difference]: Start difference. First operand 355 states and 448 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:36:45,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:36:45,083 INFO L93 Difference]: Finished difference Result 887 states and 1154 transitions. [2022-11-19 08:36:45,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:36:45,083 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2022-11-19 08:36:45,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:36:45,085 INFO L225 Difference]: With dead ends: 887 [2022-11-19 08:36:45,085 INFO L226 Difference]: Without dead ends: 621 [2022-11-19 08:36:45,086 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:36:45,087 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 41 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 282 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 [2022-11-19 08:36:45,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 282 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 08:36:45,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states. [2022-11-19 08:36:46,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 587. [2022-11-19 08:36:46,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 587 states, 586 states have (on average 1.2832764505119454) internal successors, (752), 586 states have internal predecessors, (752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:36:46,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 752 transitions. [2022-11-19 08:36:46,666 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 752 transitions. Word has length 108 [2022-11-19 08:36:46,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:36:46,666 INFO L495 AbstractCegarLoop]: Abstraction has 587 states and 752 transitions. [2022-11-19 08:36:46,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:36:46,667 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 752 transitions. [2022-11-19 08:36:46,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-19 08:36:46,667 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:36:46,668 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:36:46,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-11-19 08:36:46,668 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)] === [2022-11-19 08:36:46,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:36:46,669 INFO L85 PathProgramCache]: Analyzing trace with hash -277826620, now seen corresponding path program 1 times [2022-11-19 08:36:46,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:36:46,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954776753] [2022-11-19 08:36:46,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:36:46,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:36:46,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:36:46,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:36:46,817 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:36:46,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954776753] [2022-11-19 08:36:46,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954776753] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:36:46,818 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:36:46,818 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:36:46,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791873232] [2022-11-19 08:36:46,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:36:46,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:36:46,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:36:46,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:36:46,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:36:46,820 INFO L87 Difference]: Start difference. First operand 587 states and 752 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:36:50,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:36:50,043 INFO L93 Difference]: Finished difference Result 1583 states and 2066 transitions. [2022-11-19 08:36:50,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:36:50,044 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-11-19 08:36:50,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:36:50,046 INFO L225 Difference]: With dead ends: 1583 [2022-11-19 08:36:50,046 INFO L226 Difference]: Without dead ends: 1085 [2022-11-19 08:36:50,047 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:36:50,048 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 31 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 282 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 [2022-11-19 08:36:50,048 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 282 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 08:36:50,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1085 states. [2022-11-19 08:36:53,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1085 to 1019. [2022-11-19 08:36:53,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1019 states, 1018 states have (on average 1.2888015717092338) internal successors, (1312), 1018 states have internal predecessors, (1312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:36:53,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1019 states to 1019 states and 1312 transitions. [2022-11-19 08:36:53,162 INFO L78 Accepts]: Start accepts. Automaton has 1019 states and 1312 transitions. Word has length 111 [2022-11-19 08:36:53,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:36:53,163 INFO L495 AbstractCegarLoop]: Abstraction has 1019 states and 1312 transitions. [2022-11-19 08:36:53,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:36:53,163 INFO L276 IsEmpty]: Start isEmpty. Operand 1019 states and 1312 transitions. [2022-11-19 08:36:53,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-19 08:36:53,165 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:36:53,165 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:36:53,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-11-19 08:36:53,166 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)] === [2022-11-19 08:36:53,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:36:53,166 INFO L85 PathProgramCache]: Analyzing trace with hash 1867749565, now seen corresponding path program 1 times [2022-11-19 08:36:53,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:36:53,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616090193] [2022-11-19 08:36:53,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:36:53,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:36:53,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:36:53,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:36:53,337 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:36:53,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616090193] [2022-11-19 08:36:53,337 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616090193] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:36:53,338 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:36:53,338 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-19 08:36:53,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466428054] [2022-11-19 08:36:53,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:36:53,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-19 08:36:53,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:36:53,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-19 08:36:53,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-19 08:36:53,340 INFO L87 Difference]: Start difference. First operand 1019 states and 1312 transitions. Second operand has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:37:03,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:37:03,554 INFO L93 Difference]: Finished difference Result 4002 states and 5193 transitions. [2022-11-19 08:37:03,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-19 08:37:03,555 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2022-11-19 08:37:03,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:37:03,562 INFO L225 Difference]: With dead ends: 4002 [2022-11-19 08:37:03,563 INFO L226 Difference]: Without dead ends: 3072 [2022-11-19 08:37:03,565 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 [2022-11-19 08:37:03,566 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 787 mSDsluCounter, 1140 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 787 SdHoareTripleChecker+Valid, 1275 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 [2022-11-19 08:37:03,566 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [787 Valid, 1275 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 08:37:03,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3072 states. [2022-11-19 08:37:07,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3072 to 1400. [2022-11-19 08:37:07,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1400 states, 1399 states have (on average 1.278770550393138) internal successors, (1789), 1399 states have internal predecessors, (1789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:37:07,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1400 states to 1400 states and 1789 transitions. [2022-11-19 08:37:07,917 INFO L78 Accepts]: Start accepts. Automaton has 1400 states and 1789 transitions. Word has length 114 [2022-11-19 08:37:07,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:37:07,918 INFO L495 AbstractCegarLoop]: Abstraction has 1400 states and 1789 transitions. [2022-11-19 08:37:07,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:37:07,918 INFO L276 IsEmpty]: Start isEmpty. Operand 1400 states and 1789 transitions. [2022-11-19 08:37:07,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-19 08:37:07,919 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:37:07,919 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:37:07,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-11-19 08:37:07,919 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)] === [2022-11-19 08:37:07,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:37:07,920 INFO L85 PathProgramCache]: Analyzing trace with hash -650394410, now seen corresponding path program 1 times [2022-11-19 08:37:07,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:37:07,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927057517] [2022-11-19 08:37:07,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:37:07,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:37:07,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:37:07,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:37:07,983 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:37:07,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927057517] [2022-11-19 08:37:07,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927057517] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:37:07,984 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:37:07,984 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:37:07,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470971088] [2022-11-19 08:37:07,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:37:07,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:37:07,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:37:07,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:37:07,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:37:07,986 INFO L87 Difference]: Start difference. First operand 1400 states and 1789 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) [2022-11-19 08:37:14,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:37:14,422 INFO L93 Difference]: Finished difference Result 3257 states and 4188 transitions. [2022-11-19 08:37:14,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:37:14,423 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 [2022-11-19 08:37:14,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:37:14,426 INFO L225 Difference]: With dead ends: 3257 [2022-11-19 08:37:14,426 INFO L226 Difference]: Without dead ends: 1946 [2022-11-19 08:37:14,427 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:37:14,428 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 76 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 218 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 [2022-11-19 08:37:14,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 218 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 08:37:14,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1946 states. [2022-11-19 08:37:20,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1946 to 1944. [2022-11-19 08:37:20,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1944 states, 1943 states have (on average 1.274318064848173) internal successors, (2476), 1943 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:37:20,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1944 states to 1944 states and 2476 transitions. [2022-11-19 08:37:20,655 INFO L78 Accepts]: Start accepts. Automaton has 1944 states and 2476 transitions. Word has length 116 [2022-11-19 08:37:20,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:37:20,656 INFO L495 AbstractCegarLoop]: Abstraction has 1944 states and 2476 transitions. [2022-11-19 08:37:20,656 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) [2022-11-19 08:37:20,656 INFO L276 IsEmpty]: Start isEmpty. Operand 1944 states and 2476 transitions. [2022-11-19 08:37:20,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-19 08:37:20,656 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:37:20,657 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:37:20,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-11-19 08:37:20,657 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)] === [2022-11-19 08:37:20,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:37:20,657 INFO L85 PathProgramCache]: Analyzing trace with hash 1486304309, now seen corresponding path program 1 times [2022-11-19 08:37:20,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:37:20,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651094090] [2022-11-19 08:37:20,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:37:20,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:37:20,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:37:20,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:37:20,911 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:37:20,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651094090] [2022-11-19 08:37:20,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651094090] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:37:20,912 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:37:20,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-19 08:37:20,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640671639] [2022-11-19 08:37:20,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:37:20,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-19 08:37:20,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:37:20,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-19 08:37:20,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-19 08:37:20,914 INFO L87 Difference]: Start difference. First operand 1944 states and 2476 transitions. Second operand has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:37:27,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:37:27,296 INFO L93 Difference]: Finished difference Result 3801 states and 4858 transitions. [2022-11-19 08:37:27,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 08:37:27,296 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2022-11-19 08:37:27,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:37:27,300 INFO L225 Difference]: With dead ends: 3801 [2022-11-19 08:37:27,300 INFO L226 Difference]: Without dead ends: 1946 [2022-11-19 08:37:27,302 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2022-11-19 08:37:27,302 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 422 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 422 SdHoareTripleChecker+Valid, 392 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 [2022-11-19 08:37:27,303 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [422 Valid, 392 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:37:27,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1946 states. [2022-11-19 08:37:33,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1946 to 1944. [2022-11-19 08:37:33,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1944 states, 1943 states have (on average 1.273803396809058) internal successors, (2475), 1943 states have internal predecessors, (2475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:37:33,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1944 states to 1944 states and 2475 transitions. [2022-11-19 08:37:33,577 INFO L78 Accepts]: Start accepts. Automaton has 1944 states and 2475 transitions. Word has length 116 [2022-11-19 08:37:33,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:37:33,577 INFO L495 AbstractCegarLoop]: Abstraction has 1944 states and 2475 transitions. [2022-11-19 08:37:33,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:37:33,578 INFO L276 IsEmpty]: Start isEmpty. Operand 1944 states and 2475 transitions. [2022-11-19 08:37:33,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-11-19 08:37:33,578 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:37:33,579 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:37:33,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-11-19 08:37:33,579 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)] === [2022-11-19 08:37:33,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:37:33,580 INFO L85 PathProgramCache]: Analyzing trace with hash 607380397, now seen corresponding path program 1 times [2022-11-19 08:37:33,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:37:33,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158775639] [2022-11-19 08:37:33,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:37:33,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:37:33,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:37:33,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:37:33,828 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:37:33,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158775639] [2022-11-19 08:37:33,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158775639] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:37:33,829 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:37:33,829 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-19 08:37:33,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4830917] [2022-11-19 08:37:33,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:37:33,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-19 08:37:33,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:37:33,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-19 08:37:33,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-19 08:37:33,831 INFO L87 Difference]: Start difference. First operand 1944 states and 2475 transitions. Second operand has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 7 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:37:43,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:37:43,350 INFO L93 Difference]: Finished difference Result 2738 states and 3448 transitions. [2022-11-19 08:37:43,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-19 08:37:43,351 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 7 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-11-19 08:37:43,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:37:43,356 INFO L225 Difference]: With dead ends: 2738 [2022-11-19 08:37:43,356 INFO L226 Difference]: Without dead ends: 2736 [2022-11-19 08:37:43,356 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 [2022-11-19 08:37:43,357 INFO L413 NwaCegarLoop]: 211 mSDtfsCounter, 318 mSDsluCounter, 700 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 318 SdHoareTripleChecker+Valid, 911 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:37:43,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [318 Valid, 911 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:37:43,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2736 states. [2022-11-19 08:37:49,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2736 to 1944. [2022-11-19 08:37:49,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1944 states, 1943 states have (on average 1.2573340195573854) internal successors, (2443), 1943 states have internal predecessors, (2443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:37:49,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1944 states to 1944 states and 2443 transitions. [2022-11-19 08:37:49,740 INFO L78 Accepts]: Start accepts. Automaton has 1944 states and 2443 transitions. Word has length 117 [2022-11-19 08:37:49,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:37:49,741 INFO L495 AbstractCegarLoop]: Abstraction has 1944 states and 2443 transitions. [2022-11-19 08:37:49,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 7 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:37:49,741 INFO L276 IsEmpty]: Start isEmpty. Operand 1944 states and 2443 transitions. [2022-11-19 08:37:49,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-11-19 08:37:49,743 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:37:49,743 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-19 08:37:49,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-11-19 08:37:49,744 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)] === [2022-11-19 08:37:49,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:37:49,745 INFO L85 PathProgramCache]: Analyzing trace with hash 419772567, now seen corresponding path program 1 times [2022-11-19 08:37:49,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:37:49,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277233393] [2022-11-19 08:37:49,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:37:49,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:37:49,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:37:50,154 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-19 08:37:50,155 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:37:50,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277233393] [2022-11-19 08:37:50,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277233393] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:37:50,155 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:37:50,156 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-19 08:37:50,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585897460] [2022-11-19 08:37:50,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:37:50,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 08:37:50,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:37:50,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 08:37:50,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-19 08:37:50,158 INFO L87 Difference]: Start difference. First operand 1944 states and 2443 transitions. Second operand has 8 states, 8 states have (on average 15.5) internal successors, (124), 7 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:38:00,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:38:00,921 INFO L93 Difference]: Finished difference Result 4877 states and 6147 transitions. [2022-11-19 08:38:00,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-19 08:38:00,922 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 15.5) internal successors, (124), 7 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2022-11-19 08:38:00,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:38:00,926 INFO L225 Difference]: With dead ends: 4877 [2022-11-19 08:38:00,926 INFO L226 Difference]: Without dead ends: 3016 [2022-11-19 08:38:00,929 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 [2022-11-19 08:38:00,930 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 504 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 504 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-19 08:38:00,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [504 Valid, 381 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-19 08:38:00,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3016 states. [2022-11-19 08:38:07,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3016 to 1944. [2022-11-19 08:38:07,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1944 states, 1943 states have (on average 1.2568193515182706) internal successors, (2442), 1943 states have internal predecessors, (2442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:38:07,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1944 states to 1944 states and 2442 transitions. [2022-11-19 08:38:07,335 INFO L78 Accepts]: Start accepts. Automaton has 1944 states and 2442 transitions. Word has length 133 [2022-11-19 08:38:07,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:38:07,336 INFO L495 AbstractCegarLoop]: Abstraction has 1944 states and 2442 transitions. [2022-11-19 08:38:07,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.5) internal successors, (124), 7 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:38:07,336 INFO L276 IsEmpty]: Start isEmpty. Operand 1944 states and 2442 transitions. [2022-11-19 08:38:07,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-11-19 08:38:07,338 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:38:07,338 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-19 08:38:07,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-11-19 08:38:07,339 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)] === [2022-11-19 08:38:07,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:38:07,340 INFO L85 PathProgramCache]: Analyzing trace with hash 960486300, now seen corresponding path program 1 times [2022-11-19 08:38:07,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:38:07,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886054163] [2022-11-19 08:38:07,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:38:07,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:38:07,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:38:09,781 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-19 08:38:09,781 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:38:09,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886054163] [2022-11-19 08:38:09,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886054163] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:38:09,781 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:38:09,781 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-11-19 08:38:09,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269124492] [2022-11-19 08:38:09,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:38:09,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-19 08:38:09,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:38:09,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-19 08:38:09,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=581, Unknown=0, NotChecked=0, Total=650 [2022-11-19 08:38:09,784 INFO L87 Difference]: Start difference. First operand 1944 states and 2442 transitions. Second operand has 26 states, 26 states have (on average 4.846153846153846) internal successors, (126), 26 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:38:32,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:38:32,679 INFO L93 Difference]: Finished difference Result 7508 states and 9469 transitions. [2022-11-19 08:38:32,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-19 08:38:32,680 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.846153846153846) internal successors, (126), 26 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-11-19 08:38:32,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:38:32,693 INFO L225 Difference]: With dead ends: 7508 [2022-11-19 08:38:32,693 INFO L226 Difference]: Without dead ends: 5646 [2022-11-19 08:38:32,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 303 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=344, Invalid=1818, Unknown=0, NotChecked=0, Total=2162 [2022-11-19 08:38:32,698 INFO L413 NwaCegarLoop]: 385 mSDtfsCounter, 1442 mSDsluCounter, 4716 mSDsCounter, 0 mSdLazyCounter, 2832 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1442 SdHoareTripleChecker+Valid, 5101 SdHoareTripleChecker+Invalid, 2844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 2832 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-11-19 08:38:32,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1442 Valid, 5101 Invalid, 2844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 2832 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-11-19 08:38:32,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5646 states. [2022-11-19 08:38:39,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5646 to 1964. [2022-11-19 08:38:39,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1964 states, 1963 states have (on average 1.2557310239429444) internal successors, (2465), 1963 states have internal predecessors, (2465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:38:39,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1964 states to 1964 states and 2465 transitions. [2022-11-19 08:38:39,457 INFO L78 Accepts]: Start accepts. Automaton has 1964 states and 2465 transitions. Word has length 135 [2022-11-19 08:38:39,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:38:39,457 INFO L495 AbstractCegarLoop]: Abstraction has 1964 states and 2465 transitions. [2022-11-19 08:38:39,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 4.846153846153846) internal successors, (126), 26 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:38:39,458 INFO L276 IsEmpty]: Start isEmpty. Operand 1964 states and 2465 transitions. [2022-11-19 08:38:39,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-11-19 08:38:39,459 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:38:39,460 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-19 08:38:39,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-11-19 08:38:39,460 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)] === [2022-11-19 08:38:39,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:38:39,461 INFO L85 PathProgramCache]: Analyzing trace with hash -1968100436, now seen corresponding path program 1 times [2022-11-19 08:38:39,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:38:39,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436894156] [2022-11-19 08:38:39,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:38:39,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:38:39,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:38:46,891 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:38:46,891 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:38:46,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436894156] [2022-11-19 08:38:46,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436894156] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:38:46,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2096612920] [2022-11-19 08:38:46,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:38:46,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:38:46,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a188db50-cb93-425e-a875-4f0b047debd4/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:38:46,895 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a188db50-cb93-425e-a875-4f0b047debd4/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:38:46,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a188db50-cb93-425e-a875-4f0b047debd4/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 08:38:47,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:38:47,294 INFO L263 TraceCheckSpWp]: Trace formula consists of 699 conjuncts, 112 conjunts are in the unsatisfiable core [2022-11-19 08:38:47,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:40:09,774 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:40:09,774 INFO L328 TraceCheckSpWp]: Computing backward predicates...