./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b142b8e6-e20f-493c-b81a-ba1b99c4c86a/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b142b8e6-e20f-493c-b81a-ba1b99c4c86a/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b142b8e6-e20f-493c-b81a-ba1b99c4c86a/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b142b8e6-e20f-493c-b81a-ba1b99c4c86a/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b142b8e6-e20f-493c-b81a-ba1b99c4c86a/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b142b8e6-e20f-493c-b81a-ba1b99c4c86a/bin/uautomizer-ZsLfNo2U6R --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ef1b718ec14fcc68d212ba49eb2094855200a064b5887a7f2eecdbae8074f363 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 18:27:45,954 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 18:27:45,957 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 18:27:45,995 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 18:27:45,998 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 18:27:45,999 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 18:27:46,002 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 18:27:46,006 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 18:27:46,009 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 18:27:46,011 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 18:27:46,014 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 18:27:46,017 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 18:27:46,018 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 18:27:46,023 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 18:27:46,025 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 18:27:46,028 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 18:27:46,030 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 18:27:46,032 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 18:27:46,036 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 18:27:46,040 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 18:27:46,043 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 18:27:46,046 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 18:27:46,047 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 18:27:46,048 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 18:27:46,057 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 18:27:46,060 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 18:27:46,061 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 18:27:46,062 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 18:27:46,063 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 18:27:46,065 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 18:27:46,066 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 18:27:46,067 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 18:27:46,069 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 18:27:46,070 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 18:27:46,072 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 18:27:46,072 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 18:27:46,073 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 18:27:46,073 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 18:27:46,074 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 18:27:46,076 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 18:27:46,076 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 18:27:46,077 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b142b8e6-e20f-493c-b81a-ba1b99c4c86a/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-25 18:27:46,122 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 18:27:46,122 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 18:27:46,123 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 18:27:46,123 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 18:27:46,124 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 18:27:46,125 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 18:27:46,125 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 18:27:46,126 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 18:27:46,126 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 18:27:46,126 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 18:27:46,127 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 18:27:46,128 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 18:27:46,128 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 18:27:46,128 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 18:27:46,128 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 18:27:46,129 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 18:27:46,129 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 18:27:46,129 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 18:27:46,129 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 18:27:46,130 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 18:27:46,130 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 18:27:46,130 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 18:27:46,130 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 18:27:46,131 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 18:27:46,131 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:27:46,131 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 18:27:46,131 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 18:27:46,132 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 18:27:46,132 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 18:27:46,133 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 18:27:46,133 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 18:27:46,133 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 18:27:46,134 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 18:27:46,134 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 18:27:46,134 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_b142b8e6-e20f-493c-b81a-ba1b99c4c86a/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b142b8e6-e20f-493c-b81a-ba1b99c4c86a/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ef1b718ec14fcc68d212ba49eb2094855200a064b5887a7f2eecdbae8074f363 [2022-11-25 18:27:46,453 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 18:27:46,488 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 18:27:46,492 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 18:27:46,493 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 18:27:46,494 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 18:27:46,495 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b142b8e6-e20f-493c-b81a-ba1b99c4c86a/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c [2022-11-25 18:27:49,505 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 18:27:49,883 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 18:27:49,884 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b142b8e6-e20f-493c-b81a-ba1b99c4c86a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c [2022-11-25 18:27:49,914 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b142b8e6-e20f-493c-b81a-ba1b99c4c86a/bin/uautomizer-ZsLfNo2U6R/data/35f62e2d0/01ad93d212b34cb2a1c60c057838e8ad/FLAG54f537f22 [2022-11-25 18:27:49,929 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b142b8e6-e20f-493c-b81a-ba1b99c4c86a/bin/uautomizer-ZsLfNo2U6R/data/35f62e2d0/01ad93d212b34cb2a1c60c057838e8ad [2022-11-25 18:27:49,932 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 18:27:49,934 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 18:27:49,935 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 18:27:49,936 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 18:27:49,941 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 18:27:49,942 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:27:49" (1/1) ... [2022-11-25 18:27:49,943 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@452dece6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:27:49, skipping insertion in model container [2022-11-25 18:27:49,944 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:27:49" (1/1) ... [2022-11-25 18:27:49,952 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 18:27:50,069 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 18:27:50,387 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b142b8e6-e20f-493c-b81a-ba1b99c4c86a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[11563,11576] [2022-11-25 18:27:50,421 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b142b8e6-e20f-493c-b81a-ba1b99c4c86a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[15640,15653] [2022-11-25 18:27:50,433 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b142b8e6-e20f-493c-b81a-ba1b99c4c86a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[16861,16874] [2022-11-25 18:27:50,441 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b142b8e6-e20f-493c-b81a-ba1b99c4c86a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[17567,17580] [2022-11-25 18:27:50,454 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b142b8e6-e20f-493c-b81a-ba1b99c4c86a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[19153,19166] [2022-11-25 18:27:50,471 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b142b8e6-e20f-493c-b81a-ba1b99c4c86a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[19859,19872] [2022-11-25 18:27:50,488 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b142b8e6-e20f-493c-b81a-ba1b99c4c86a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[20930,20943] [2022-11-25 18:27:50,507 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b142b8e6-e20f-493c-b81a-ba1b99c4c86a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[23420,23433] [2022-11-25 18:27:50,514 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b142b8e6-e20f-493c-b81a-ba1b99c4c86a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[24129,24142] [2022-11-25 18:27:50,522 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b142b8e6-e20f-493c-b81a-ba1b99c4c86a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[25166,25179] [2022-11-25 18:27:50,535 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b142b8e6-e20f-493c-b81a-ba1b99c4c86a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[27104,27117] [2022-11-25 18:27:50,565 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b142b8e6-e20f-493c-b81a-ba1b99c4c86a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[31138,31151] [2022-11-25 18:27:50,575 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b142b8e6-e20f-493c-b81a-ba1b99c4c86a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[31847,31860] [2022-11-25 18:27:50,583 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b142b8e6-e20f-493c-b81a-ba1b99c4c86a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[32921,32934] [2022-11-25 18:27:50,596 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b142b8e6-e20f-493c-b81a-ba1b99c4c86a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[34896,34909] [2022-11-25 18:27:50,616 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b142b8e6-e20f-493c-b81a-ba1b99c4c86a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[38277,38290] [2022-11-25 18:27:50,838 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:27:50,853 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 18:27:50,961 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b142b8e6-e20f-493c-b81a-ba1b99c4c86a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[11563,11576] [2022-11-25 18:27:50,986 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b142b8e6-e20f-493c-b81a-ba1b99c4c86a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[15640,15653] [2022-11-25 18:27:51,023 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b142b8e6-e20f-493c-b81a-ba1b99c4c86a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[16861,16874] [2022-11-25 18:27:51,031 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b142b8e6-e20f-493c-b81a-ba1b99c4c86a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[17567,17580] [2022-11-25 18:27:51,044 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b142b8e6-e20f-493c-b81a-ba1b99c4c86a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[19153,19166] [2022-11-25 18:27:51,052 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b142b8e6-e20f-493c-b81a-ba1b99c4c86a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[19859,19872] [2022-11-25 18:27:51,061 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b142b8e6-e20f-493c-b81a-ba1b99c4c86a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[20930,20943] [2022-11-25 18:27:51,079 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b142b8e6-e20f-493c-b81a-ba1b99c4c86a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[23420,23433] [2022-11-25 18:27:51,086 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b142b8e6-e20f-493c-b81a-ba1b99c4c86a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[24129,24142] [2022-11-25 18:27:51,095 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b142b8e6-e20f-493c-b81a-ba1b99c4c86a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[25166,25179] [2022-11-25 18:27:51,111 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b142b8e6-e20f-493c-b81a-ba1b99c4c86a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[27104,27117] [2022-11-25 18:27:51,141 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b142b8e6-e20f-493c-b81a-ba1b99c4c86a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[31138,31151] [2022-11-25 18:27:51,148 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b142b8e6-e20f-493c-b81a-ba1b99c4c86a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[31847,31860] [2022-11-25 18:27:51,157 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b142b8e6-e20f-493c-b81a-ba1b99c4c86a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[32921,32934] [2022-11-25 18:27:51,172 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b142b8e6-e20f-493c-b81a-ba1b99c4c86a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[34896,34909] [2022-11-25 18:27:51,197 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b142b8e6-e20f-493c-b81a-ba1b99c4c86a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[38277,38290] [2022-11-25 18:27:51,390 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:27:51,412 INFO L208 MainTranslator]: Completed translation [2022-11-25 18:27:51,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:27:51 WrapperNode [2022-11-25 18:27:51,414 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 18:27:51,415 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 18:27:51,416 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 18:27:51,416 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 18:27:51,424 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:27:51" (1/1) ... [2022-11-25 18:27:51,468 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:27:51" (1/1) ... [2022-11-25 18:27:51,605 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 3487 [2022-11-25 18:27:51,605 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 18:27:51,606 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 18:27:51,606 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 18:27:51,607 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 18:27:51,617 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:27:51" (1/1) ... [2022-11-25 18:27:51,617 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:27:51" (1/1) ... [2022-11-25 18:27:51,631 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:27:51" (1/1) ... [2022-11-25 18:27:51,632 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:27:51" (1/1) ... [2022-11-25 18:27:51,680 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:27:51" (1/1) ... [2022-11-25 18:27:51,703 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:27:51" (1/1) ... [2022-11-25 18:27:51,709 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:27:51" (1/1) ... [2022-11-25 18:27:51,716 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:27:51" (1/1) ... [2022-11-25 18:27:51,728 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 18:27:51,729 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 18:27:51,729 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 18:27:51,730 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 18:27:51,730 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:27:51" (1/1) ... [2022-11-25 18:27:51,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:27:51,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b142b8e6-e20f-493c-b81a-ba1b99c4c86a/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:27:51,776 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b142b8e6-e20f-493c-b81a-ba1b99c4c86a/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 18:27:51,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b142b8e6-e20f-493c-b81a-ba1b99c4c86a/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 18:27:51,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 18:27:51,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 18:27:51,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 18:27:51,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 18:27:52,045 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 18:27:52,047 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 18:27:54,367 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 18:27:54,381 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 18:27:54,382 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 18:27:54,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:27:54 BoogieIcfgContainer [2022-11-25 18:27:54,385 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 18:27:54,387 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 18:27:54,388 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 18:27:54,391 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 18:27:54,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:27:49" (1/3) ... [2022-11-25 18:27:54,393 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50b8a96c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:27:54, skipping insertion in model container [2022-11-25 18:27:54,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:27:51" (2/3) ... [2022-11-25 18:27:54,393 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50b8a96c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:27:54, skipping insertion in model container [2022-11-25 18:27:54,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:27:54" (3/3) ... [2022-11-25 18:27:54,395 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c [2022-11-25 18:27:54,415 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 18:27:54,415 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-11-25 18:27:54,477 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 18:27:54,484 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=PETRI_NET, 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;@53fc21f7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:27:54,484 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-11-25 18:27:54,492 INFO L276 IsEmpty]: Start isEmpty. Operand has 629 states, 612 states have (on average 1.8480392156862746) internal successors, (1131), 628 states have internal predecessors, (1131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:27:54,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-25 18:27:54,509 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:27:54,511 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:27:54,512 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:27:54,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:27:54,521 INFO L85 PathProgramCache]: Analyzing trace with hash -729096350, now seen corresponding path program 1 times [2022-11-25 18:27:54,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:27:54,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270544139] [2022-11-25 18:27:54,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:27:54,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:27:54,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:27:55,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:27:55,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:27:55,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270544139] [2022-11-25 18:27:55,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270544139] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:27:55,226 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:27:55,226 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 18:27:55,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344622351] [2022-11-25 18:27:55,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:27:55,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 18:27:55,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:27:55,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 18:27:55,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 18:27:55,280 INFO L87 Difference]: Start difference. First operand has 629 states, 612 states have (on average 1.8480392156862746) internal successors, (1131), 628 states have internal predecessors, (1131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:27:56,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:27:56,000 INFO L93 Difference]: Finished difference Result 976 states and 1692 transitions. [2022-11-25 18:27:56,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 18:27:56,003 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2022-11-25 18:27:56,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:27:56,016 INFO L225 Difference]: With dead ends: 976 [2022-11-25 18:27:56,017 INFO L226 Difference]: Without dead ends: 504 [2022-11-25 18:27:56,021 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-25 18:27:56,024 INFO L413 NwaCegarLoop]: 591 mSDtfsCounter, 2533 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2533 SdHoareTripleChecker+Valid, 621 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-25 18:27:56,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2533 Valid, 621 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-25 18:27:56,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2022-11-25 18:27:56,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 504. [2022-11-25 18:27:56,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 488 states have (on average 1.305327868852459) internal successors, (637), 503 states have internal predecessors, (637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:27:56,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 637 transitions. [2022-11-25 18:27:56,098 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 637 transitions. Word has length 72 [2022-11-25 18:27:56,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:27:56,098 INFO L495 AbstractCegarLoop]: Abstraction has 504 states and 637 transitions. [2022-11-25 18:27:56,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:27:56,099 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 637 transitions. [2022-11-25 18:27:56,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-11-25 18:27:56,102 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:27:56,102 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:27:56,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 18:27:56,103 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:27:56,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:27:56,103 INFO L85 PathProgramCache]: Analyzing trace with hash -2012921467, now seen corresponding path program 1 times [2022-11-25 18:27:56,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:27:56,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948260112] [2022-11-25 18:27:56,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:27:56,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:27:56,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:27:56,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:27:56,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:27:56,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948260112] [2022-11-25 18:27:56,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948260112] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:27:56,326 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:27:56,326 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 18:27:56,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732925081] [2022-11-25 18:27:56,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:27:56,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 18:27:56,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:27:56,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 18:27:56,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 18:27:56,337 INFO L87 Difference]: Start difference. First operand 504 states and 637 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) [2022-11-25 18:27:56,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:27:56,891 INFO L93 Difference]: Finished difference Result 1056 states and 1379 transitions. [2022-11-25 18:27:56,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 18:27:56,892 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 [2022-11-25 18:27:56,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:27:56,895 INFO L225 Difference]: With dead ends: 1056 [2022-11-25 18:27:56,895 INFO L226 Difference]: Without dead ends: 654 [2022-11-25 18:27:56,896 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-25 18:27:56,898 INFO L413 NwaCegarLoop]: 333 mSDtfsCounter, 2216 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2216 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-25 18:27:56,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2216 Valid, 503 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-25 18:27:56,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 654 states. [2022-11-25 18:27:56,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 654 to 594. [2022-11-25 18:27:56,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 594 states, 578 states have (on average 1.3806228373702423) internal successors, (798), 593 states have internal predecessors, (798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:27:56,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 798 transitions. [2022-11-25 18:27:56,943 INFO L78 Accepts]: Start accepts. Automaton has 594 states and 798 transitions. Word has length 73 [2022-11-25 18:27:56,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:27:56,943 INFO L495 AbstractCegarLoop]: Abstraction has 594 states and 798 transitions. [2022-11-25 18:27:56,944 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) [2022-11-25 18:27:56,944 INFO L276 IsEmpty]: Start isEmpty. Operand 594 states and 798 transitions. [2022-11-25 18:27:56,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-25 18:27:56,946 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:27:56,946 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:27:56,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 18:27:56,946 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:27:56,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:27:56,947 INFO L85 PathProgramCache]: Analyzing trace with hash -800948093, now seen corresponding path program 1 times [2022-11-25 18:27:56,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:27:56,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001829940] [2022-11-25 18:27:56,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:27:56,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:27:56,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:27:57,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:27:57,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:27:57,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001829940] [2022-11-25 18:27:57,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001829940] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:27:57,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:27:57,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 18:27:57,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102397752] [2022-11-25 18:27:57,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:27:57,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 18:27:57,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:27:57,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 18:27:57,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 18:27:57,131 INFO L87 Difference]: Start difference. First operand 594 states and 798 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:27:57,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:27:57,611 INFO L93 Difference]: Finished difference Result 1086 states and 1487 transitions. [2022-11-25 18:27:57,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 18:27:57,611 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2022-11-25 18:27:57,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:27:57,618 INFO L225 Difference]: With dead ends: 1086 [2022-11-25 18:27:57,618 INFO L226 Difference]: Without dead ends: 574 [2022-11-25 18:27:57,619 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-25 18:27:57,621 INFO L413 NwaCegarLoop]: 266 mSDtfsCounter, 1517 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1517 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-25 18:27:57,622 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1517 Valid, 302 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-25 18:27:57,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2022-11-25 18:27:57,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 574. [2022-11-25 18:27:57,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574 states, 558 states have (on average 1.3835125448028673) internal successors, (772), 573 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:27:57,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 772 transitions. [2022-11-25 18:27:57,662 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 772 transitions. Word has length 74 [2022-11-25 18:27:57,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:27:57,663 INFO L495 AbstractCegarLoop]: Abstraction has 574 states and 772 transitions. [2022-11-25 18:27:57,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:27:57,663 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 772 transitions. [2022-11-25 18:27:57,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-25 18:27:57,665 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:27:57,665 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:27:57,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 18:27:57,666 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:27:57,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:27:57,666 INFO L85 PathProgramCache]: Analyzing trace with hash -1628151892, now seen corresponding path program 1 times [2022-11-25 18:27:57,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:27:57,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020823008] [2022-11-25 18:27:57,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:27:57,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:27:57,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:27:57,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:27:57,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:27:57,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020823008] [2022-11-25 18:27:57,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020823008] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:27:57,829 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:27:57,829 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 18:27:57,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574065167] [2022-11-25 18:27:57,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:27:57,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 18:27:57,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:27:57,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 18:27:57,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 18:27:57,831 INFO L87 Difference]: Start difference. First operand 574 states and 772 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:27:58,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:27:58,200 INFO L93 Difference]: Finished difference Result 1066 states and 1459 transitions. [2022-11-25 18:27:58,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 18:27:58,200 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2022-11-25 18:27:58,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:27:58,203 INFO L225 Difference]: With dead ends: 1066 [2022-11-25 18:27:58,203 INFO L226 Difference]: Without dead ends: 558 [2022-11-25 18:27:58,204 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-25 18:27:58,205 INFO L413 NwaCegarLoop]: 280 mSDtfsCounter, 1478 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1478 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 18:27:58,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1478 Valid, 308 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 18:27:58,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2022-11-25 18:27:58,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 558. [2022-11-25 18:27:58,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 558 states, 542 states have (on average 1.3874538745387455) internal successors, (752), 557 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) [2022-11-25 18:27:58,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 752 transitions. [2022-11-25 18:27:58,249 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 752 transitions. Word has length 75 [2022-11-25 18:27:58,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:27:58,249 INFO L495 AbstractCegarLoop]: Abstraction has 558 states and 752 transitions. [2022-11-25 18:27:58,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:27:58,250 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 752 transitions. [2022-11-25 18:27:58,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-25 18:27:58,251 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:27:58,251 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:27:58,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 18:27:58,252 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:27:58,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:27:58,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1037752348, now seen corresponding path program 1 times [2022-11-25 18:27:58,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:27:58,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350938923] [2022-11-25 18:27:58,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:27:58,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:27:58,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:27:58,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:27:58,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:27:58,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350938923] [2022-11-25 18:27:58,414 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350938923] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:27:58,415 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:27:58,415 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 18:27:58,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10772335] [2022-11-25 18:27:58,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:27:58,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 18:27:58,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:27:58,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 18:27:58,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 18:27:58,417 INFO L87 Difference]: Start difference. First operand 558 states and 752 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:27:58,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:27:58,782 INFO L93 Difference]: Finished difference Result 1050 states and 1437 transitions. [2022-11-25 18:27:58,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 18:27:58,783 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-11-25 18:27:58,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:27:58,785 INFO L225 Difference]: With dead ends: 1050 [2022-11-25 18:27:58,785 INFO L226 Difference]: Without dead ends: 547 [2022-11-25 18:27:58,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-25 18:27:58,787 INFO L413 NwaCegarLoop]: 285 mSDtfsCounter, 1453 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1453 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 18:27:58,787 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1453 Valid, 305 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 18:27:58,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2022-11-25 18:27:58,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 547. [2022-11-25 18:27:58,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 531 states have (on average 1.3898305084745763) internal successors, (738), 546 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:27:58,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 738 transitions. [2022-11-25 18:27:58,833 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 738 transitions. Word has length 76 [2022-11-25 18:27:58,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:27:58,834 INFO L495 AbstractCegarLoop]: Abstraction has 547 states and 738 transitions. [2022-11-25 18:27:58,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:27:58,834 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 738 transitions. [2022-11-25 18:27:58,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-25 18:27:58,835 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:27:58,835 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:27:58,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 18:27:58,836 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:27:58,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:27:58,836 INFO L85 PathProgramCache]: Analyzing trace with hash -142744767, now seen corresponding path program 1 times [2022-11-25 18:27:58,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:27:58,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203599951] [2022-11-25 18:27:58,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:27:58,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:27:58,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:27:59,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:27:59,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:27:59,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203599951] [2022-11-25 18:27:59,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203599951] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:27:59,240 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:27:59,240 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 18:27:59,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177515216] [2022-11-25 18:27:59,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:27:59,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 18:27:59,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:27:59,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 18:27:59,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-25 18:27:59,242 INFO L87 Difference]: Start difference. First operand 547 states and 738 transitions. Second operand has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:28:00,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:28:00,428 INFO L93 Difference]: Finished difference Result 1252 states and 1738 transitions. [2022-11-25 18:28:00,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 18:28:00,429 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-11-25 18:28:00,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:28:00,435 INFO L225 Difference]: With dead ends: 1252 [2022-11-25 18:28:00,436 INFO L226 Difference]: Without dead ends: 1112 [2022-11-25 18:28:00,437 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-25 18:28:00,438 INFO L413 NwaCegarLoop]: 340 mSDtfsCounter, 1599 mSDsluCounter, 1075 mSDsCounter, 0 mSdLazyCounter, 1111 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1599 SdHoareTripleChecker+Valid, 1415 SdHoareTripleChecker+Invalid, 1117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-25 18:28:00,441 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1599 Valid, 1415 Invalid, 1117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1111 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-25 18:28:00,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1112 states. [2022-11-25 18:28:00,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1112 to 547. [2022-11-25 18:28:00,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 531 states have (on average 1.3879472693032016) internal successors, (737), 546 states have internal predecessors, (737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:28:00,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 737 transitions. [2022-11-25 18:28:00,521 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 737 transitions. Word has length 77 [2022-11-25 18:28:00,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:28:00,522 INFO L495 AbstractCegarLoop]: Abstraction has 547 states and 737 transitions. [2022-11-25 18:28:00,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:28:00,522 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 737 transitions. [2022-11-25 18:28:00,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-25 18:28:00,523 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:28:00,524 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:28:00,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 18:28:00,524 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:28:00,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:28:00,524 INFO L85 PathProgramCache]: Analyzing trace with hash -2022253705, now seen corresponding path program 1 times [2022-11-25 18:28:00,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:28:00,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623450938] [2022-11-25 18:28:00,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:28:00,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:28:00,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:28:01,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:28:01,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:28:01,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623450938] [2022-11-25 18:28:01,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623450938] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:28:01,015 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:28:01,015 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 18:28:01,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138531400] [2022-11-25 18:28:01,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:28:01,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 18:28:01,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:28:01,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 18:28:01,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-25 18:28:01,017 INFO L87 Difference]: Start difference. First operand 547 states and 737 transitions. Second operand has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:28:02,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:28:02,406 INFO L93 Difference]: Finished difference Result 1153 states and 1585 transitions. [2022-11-25 18:28:02,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 18:28:02,407 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-11-25 18:28:02,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:28:02,410 INFO L225 Difference]: With dead ends: 1153 [2022-11-25 18:28:02,410 INFO L226 Difference]: Without dead ends: 961 [2022-11-25 18:28:02,411 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-11-25 18:28:02,412 INFO L413 NwaCegarLoop]: 329 mSDtfsCounter, 2731 mSDsluCounter, 1464 mSDsCounter, 0 mSdLazyCounter, 1377 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2731 SdHoareTripleChecker+Valid, 1793 SdHoareTripleChecker+Invalid, 1384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-25 18:28:02,412 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2731 Valid, 1793 Invalid, 1384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1377 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-25 18:28:02,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 961 states. [2022-11-25 18:28:02,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 961 to 547. [2022-11-25 18:28:02,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 531 states have (on average 1.3860640301318268) internal successors, (736), 546 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:28:02,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 736 transitions. [2022-11-25 18:28:02,479 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 736 transitions. Word has length 77 [2022-11-25 18:28:02,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:28:02,479 INFO L495 AbstractCegarLoop]: Abstraction has 547 states and 736 transitions. [2022-11-25 18:28:02,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:28:02,479 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 736 transitions. [2022-11-25 18:28:02,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-25 18:28:02,481 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:28:02,481 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:28:02,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 18:28:02,481 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:28:02,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:28:02,482 INFO L85 PathProgramCache]: Analyzing trace with hash 679839246, now seen corresponding path program 1 times [2022-11-25 18:28:02,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:28:02,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623699578] [2022-11-25 18:28:02,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:28:02,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:28:02,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:28:02,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:28:02,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:28:02,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623699578] [2022-11-25 18:28:02,883 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623699578] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:28:02,884 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:28:02,884 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 18:28:02,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969480365] [2022-11-25 18:28:02,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:28:02,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 18:28:02,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:28:02,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 18:28:02,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-25 18:28:02,885 INFO L87 Difference]: Start difference. First operand 547 states and 736 transitions. Second operand has 8 states, 8 states have (on average 9.625) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:28:03,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:28:03,655 INFO L93 Difference]: Finished difference Result 1054 states and 1399 transitions. [2022-11-25 18:28:03,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 18:28:03,656 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-11-25 18:28:03,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:28:03,659 INFO L225 Difference]: With dead ends: 1054 [2022-11-25 18:28:03,659 INFO L226 Difference]: Without dead ends: 778 [2022-11-25 18:28:03,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2022-11-25 18:28:03,661 INFO L413 NwaCegarLoop]: 261 mSDtfsCounter, 2650 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 606 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2650 SdHoareTripleChecker+Valid, 686 SdHoareTripleChecker+Invalid, 610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 606 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-25 18:28:03,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2650 Valid, 686 Invalid, 610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 606 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-25 18:28:03,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 778 states. [2022-11-25 18:28:03,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 778 to 547. [2022-11-25 18:28:03,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 531 states have (on average 1.384180790960452) internal successors, (735), 546 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:28:03,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 735 transitions. [2022-11-25 18:28:03,739 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 735 transitions. Word has length 77 [2022-11-25 18:28:03,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:28:03,740 INFO L495 AbstractCegarLoop]: Abstraction has 547 states and 735 transitions. [2022-11-25 18:28:03,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:28:03,740 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 735 transitions. [2022-11-25 18:28:03,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-25 18:28:03,742 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:28:03,742 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:28:03,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 18:28:03,742 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:28:03,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:28:03,743 INFO L85 PathProgramCache]: Analyzing trace with hash -204100811, now seen corresponding path program 1 times [2022-11-25 18:28:03,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:28:03,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456551137] [2022-11-25 18:28:03,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:28:03,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:28:03,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:28:04,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:28:04,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:28:04,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456551137] [2022-11-25 18:28:04,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456551137] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:28:04,538 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:28:04,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-25 18:28:04,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719556787] [2022-11-25 18:28:04,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:28:04,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 18:28:04,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:28:04,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 18:28:04,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-25 18:28:04,540 INFO L87 Difference]: Start difference. First operand 547 states and 735 transitions. Second operand has 12 states, 12 states have (on average 6.583333333333333) internal successors, (79), 11 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:28:07,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:28:07,605 INFO L93 Difference]: Finished difference Result 2316 states and 3286 transitions. [2022-11-25 18:28:07,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-25 18:28:07,606 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.583333333333333) internal successors, (79), 11 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-11-25 18:28:07,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:28:07,613 INFO L225 Difference]: With dead ends: 2316 [2022-11-25 18:28:07,613 INFO L226 Difference]: Without dead ends: 2154 [2022-11-25 18:28:07,614 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-11-25 18:28:07,615 INFO L413 NwaCegarLoop]: 516 mSDtfsCounter, 5318 mSDsluCounter, 1627 mSDsCounter, 0 mSdLazyCounter, 1712 mSolverCounterSat, 165 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5318 SdHoareTripleChecker+Valid, 2143 SdHoareTripleChecker+Invalid, 1877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 165 IncrementalHoareTripleChecker+Valid, 1712 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-25 18:28:07,615 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5318 Valid, 2143 Invalid, 1877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [165 Valid, 1712 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-25 18:28:07,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2154 states. [2022-11-25 18:28:07,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2154 to 551. [2022-11-25 18:28:07,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 535 states have (on average 1.3813084112149532) internal successors, (739), 550 states have internal predecessors, (739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:28:07,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 739 transitions. [2022-11-25 18:28:07,753 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 739 transitions. Word has length 79 [2022-11-25 18:28:07,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:28:07,753 INFO L495 AbstractCegarLoop]: Abstraction has 551 states and 739 transitions. [2022-11-25 18:28:07,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.583333333333333) internal successors, (79), 11 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:28:07,754 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 739 transitions. [2022-11-25 18:28:07,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-25 18:28:07,755 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:28:07,755 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:28:07,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 18:28:07,757 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:28:07,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:28:07,758 INFO L85 PathProgramCache]: Analyzing trace with hash -612946039, now seen corresponding path program 1 times [2022-11-25 18:28:07,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:28:07,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604385673] [2022-11-25 18:28:07,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:28:07,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:28:07,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:28:08,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:28:08,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:28:08,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604385673] [2022-11-25 18:28:08,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604385673] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:28:08,156 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:28:08,156 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 18:28:08,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383229726] [2022-11-25 18:28:08,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:28:08,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 18:28:08,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:28:08,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 18:28:08,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-25 18:28:08,158 INFO L87 Difference]: Start difference. First operand 551 states and 739 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:28:09,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:28:09,564 INFO L93 Difference]: Finished difference Result 1256 states and 1739 transitions. [2022-11-25 18:28:09,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 18:28:09,565 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-11-25 18:28:09,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:28:09,569 INFO L225 Difference]: With dead ends: 1256 [2022-11-25 18:28:09,569 INFO L226 Difference]: Without dead ends: 1116 [2022-11-25 18:28:09,570 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-11-25 18:28:09,570 INFO L413 NwaCegarLoop]: 340 mSDtfsCounter, 3059 mSDsluCounter, 1092 mSDsCounter, 0 mSdLazyCounter, 1096 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3059 SdHoareTripleChecker+Valid, 1432 SdHoareTripleChecker+Invalid, 1103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1096 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-25 18:28:09,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3059 Valid, 1432 Invalid, 1103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1096 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-25 18:28:09,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1116 states. [2022-11-25 18:28:09,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1116 to 551. [2022-11-25 18:28:09,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 535 states have (on average 1.3794392523364487) internal successors, (738), 550 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:28:09,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 738 transitions. [2022-11-25 18:28:09,662 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 738 transitions. Word has length 79 [2022-11-25 18:28:09,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:28:09,662 INFO L495 AbstractCegarLoop]: Abstraction has 551 states and 738 transitions. [2022-11-25 18:28:09,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:28:09,663 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 738 transitions. [2022-11-25 18:28:09,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-25 18:28:09,664 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:28:09,664 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:28:09,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-25 18:28:09,665 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:28:09,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:28:09,665 INFO L85 PathProgramCache]: Analyzing trace with hash 391973260, now seen corresponding path program 1 times [2022-11-25 18:28:09,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:28:09,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269515249] [2022-11-25 18:28:09,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:28:09,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:28:09,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:28:09,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:28:09,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:28:09,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269515249] [2022-11-25 18:28:09,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269515249] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:28:09,995 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:28:09,995 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 18:28:09,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489481801] [2022-11-25 18:28:09,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:28:09,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 18:28:09,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:28:09,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 18:28:09,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-25 18:28:09,996 INFO L87 Difference]: Start difference. First operand 551 states and 738 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:28:11,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:28:11,440 INFO L93 Difference]: Finished difference Result 1252 states and 1734 transitions. [2022-11-25 18:28:11,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 18:28:11,440 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-11-25 18:28:11,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:28:11,445 INFO L225 Difference]: With dead ends: 1252 [2022-11-25 18:28:11,445 INFO L226 Difference]: Without dead ends: 1116 [2022-11-25 18:28:11,448 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-11-25 18:28:11,449 INFO L413 NwaCegarLoop]: 328 mSDtfsCounter, 3095 mSDsluCounter, 1072 mSDsCounter, 0 mSdLazyCounter, 1096 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3095 SdHoareTripleChecker+Valid, 1400 SdHoareTripleChecker+Invalid, 1103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1096 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-25 18:28:11,449 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3095 Valid, 1400 Invalid, 1103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1096 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-25 18:28:11,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1116 states. [2022-11-25 18:28:11,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1116 to 551. [2022-11-25 18:28:11,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 535 states have (on average 1.377570093457944) internal successors, (737), 550 states have internal predecessors, (737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:28:11,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 737 transitions. [2022-11-25 18:28:11,604 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 737 transitions. Word has length 79 [2022-11-25 18:28:11,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:28:11,605 INFO L495 AbstractCegarLoop]: Abstraction has 551 states and 737 transitions. [2022-11-25 18:28:11,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:28:11,605 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 737 transitions. [2022-11-25 18:28:11,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-25 18:28:11,609 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:28:11,609 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:28:11,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-25 18:28:11,609 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:28:11,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:28:11,610 INFO L85 PathProgramCache]: Analyzing trace with hash -757085498, now seen corresponding path program 1 times [2022-11-25 18:28:11,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:28:11,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699364655] [2022-11-25 18:28:11,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:28:11,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:28:11,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:28:11,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:28:11,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:28:11,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699364655] [2022-11-25 18:28:11,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699364655] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:28:11,947 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:28:11,947 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 18:28:11,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493321892] [2022-11-25 18:28:11,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:28:11,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 18:28:11,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:28:11,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 18:28:11,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-25 18:28:11,949 INFO L87 Difference]: Start difference. First operand 551 states and 737 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:28:13,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:28:13,632 INFO L93 Difference]: Finished difference Result 1289 states and 1790 transitions. [2022-11-25 18:28:13,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 18:28:13,632 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-11-25 18:28:13,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:28:13,637 INFO L225 Difference]: With dead ends: 1289 [2022-11-25 18:28:13,637 INFO L226 Difference]: Without dead ends: 1136 [2022-11-25 18:28:13,638 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-11-25 18:28:13,638 INFO L413 NwaCegarLoop]: 355 mSDtfsCounter, 2576 mSDsluCounter, 1599 mSDsCounter, 0 mSdLazyCounter, 1450 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2576 SdHoareTripleChecker+Valid, 1954 SdHoareTripleChecker+Invalid, 1457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-25 18:28:13,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2576 Valid, 1954 Invalid, 1457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1450 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-25 18:28:13,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1136 states. [2022-11-25 18:28:13,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1136 to 551. [2022-11-25 18:28:13,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 535 states have (on average 1.3757009345794393) internal successors, (736), 550 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:28:13,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 736 transitions. [2022-11-25 18:28:13,766 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 736 transitions. Word has length 79 [2022-11-25 18:28:13,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:28:13,766 INFO L495 AbstractCegarLoop]: Abstraction has 551 states and 736 transitions. [2022-11-25 18:28:13,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:28:13,766 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 736 transitions. [2022-11-25 18:28:13,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-25 18:28:13,768 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:28:13,768 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:28:13,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-25 18:28:13,768 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:28:13,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:28:13,769 INFO L85 PathProgramCache]: Analyzing trace with hash 1786631023, now seen corresponding path program 1 times [2022-11-25 18:28:13,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:28:13,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057416963] [2022-11-25 18:28:13,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:28:13,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:28:13,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:28:14,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:28:14,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:28:14,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057416963] [2022-11-25 18:28:14,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057416963] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:28:14,231 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:28:14,231 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-25 18:28:14,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777204040] [2022-11-25 18:28:14,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:28:14,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 18:28:14,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:28:14,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 18:28:14,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-11-25 18:28:14,233 INFO L87 Difference]: Start difference. First operand 551 states and 736 transitions. Second operand has 12 states, 12 states have (on average 6.583333333333333) internal successors, (79), 11 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:28:15,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:28:15,850 INFO L93 Difference]: Finished difference Result 1330 states and 1827 transitions. [2022-11-25 18:28:15,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-25 18:28:15,850 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.583333333333333) internal successors, (79), 11 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-11-25 18:28:15,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:28:15,854 INFO L225 Difference]: With dead ends: 1330 [2022-11-25 18:28:15,855 INFO L226 Difference]: Without dead ends: 1178 [2022-11-25 18:28:15,856 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=182, Invalid=520, Unknown=0, NotChecked=0, Total=702 [2022-11-25 18:28:15,858 INFO L413 NwaCegarLoop]: 316 mSDtfsCounter, 3263 mSDsluCounter, 1342 mSDsCounter, 0 mSdLazyCounter, 1295 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3263 SdHoareTripleChecker+Valid, 1658 SdHoareTripleChecker+Invalid, 1312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-25 18:28:15,858 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3263 Valid, 1658 Invalid, 1312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1295 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-25 18:28:15,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1178 states. [2022-11-25 18:28:16,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1178 to 565. [2022-11-25 18:28:16,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 549 states have (on average 1.3770491803278688) internal successors, (756), 564 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:28:16,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 756 transitions. [2022-11-25 18:28:16,008 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 756 transitions. Word has length 79 [2022-11-25 18:28:16,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:28:16,008 INFO L495 AbstractCegarLoop]: Abstraction has 565 states and 756 transitions. [2022-11-25 18:28:16,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.583333333333333) internal successors, (79), 11 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:28:16,009 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 756 transitions. [2022-11-25 18:28:16,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-25 18:28:16,010 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:28:16,011 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:28:16,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-25 18:28:16,011 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:28:16,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:28:16,012 INFO L85 PathProgramCache]: Analyzing trace with hash -125566079, now seen corresponding path program 1 times [2022-11-25 18:28:16,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:28:16,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915495795] [2022-11-25 18:28:16,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:28:16,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:28:16,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:28:16,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:28:16,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:28:16,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915495795] [2022-11-25 18:28:16,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915495795] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:28:16,575 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:28:16,575 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-25 18:28:16,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709025183] [2022-11-25 18:28:16,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:28:16,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-25 18:28:16,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:28:16,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-25 18:28:16,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-11-25 18:28:16,577 INFO L87 Difference]: Start difference. First operand 565 states and 756 transitions. Second operand has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 10 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:28:18,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:28:18,358 INFO L93 Difference]: Finished difference Result 1199 states and 1663 transitions. [2022-11-25 18:28:18,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-25 18:28:18,358 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 10 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-11-25 18:28:18,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:28:18,362 INFO L225 Difference]: With dead ends: 1199 [2022-11-25 18:28:18,363 INFO L226 Difference]: Without dead ends: 941 [2022-11-25 18:28:18,364 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=176, Invalid=474, Unknown=0, NotChecked=0, Total=650 [2022-11-25 18:28:18,364 INFO L413 NwaCegarLoop]: 396 mSDtfsCounter, 2815 mSDsluCounter, 1484 mSDsCounter, 0 mSdLazyCounter, 1437 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2815 SdHoareTripleChecker+Valid, 1880 SdHoareTripleChecker+Invalid, 1456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-25 18:28:18,365 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2815 Valid, 1880 Invalid, 1456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1437 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-25 18:28:18,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 941 states. [2022-11-25 18:28:18,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 941 to 551. [2022-11-25 18:28:18,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 535 states have (on average 1.37196261682243) internal successors, (734), 550 states have internal predecessors, (734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:28:18,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 734 transitions. [2022-11-25 18:28:18,485 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 734 transitions. Word has length 79 [2022-11-25 18:28:18,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:28:18,486 INFO L495 AbstractCegarLoop]: Abstraction has 551 states and 734 transitions. [2022-11-25 18:28:18,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 10 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:28:18,486 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 734 transitions. [2022-11-25 18:28:18,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-25 18:28:18,487 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:28:18,488 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:28:18,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-25 18:28:18,488 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:28:18,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:28:18,489 INFO L85 PathProgramCache]: Analyzing trace with hash 1207195179, now seen corresponding path program 1 times [2022-11-25 18:28:18,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:28:18,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805436139] [2022-11-25 18:28:18,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:28:18,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:28:18,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:28:18,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:28:18,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:28:18,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805436139] [2022-11-25 18:28:18,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805436139] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:28:18,818 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:28:18,818 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 18:28:18,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575540299] [2022-11-25 18:28:18,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:28:18,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 18:28:18,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:28:18,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 18:28:18,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-25 18:28:18,820 INFO L87 Difference]: Start difference. First operand 551 states and 734 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:28:20,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:28:20,243 INFO L93 Difference]: Finished difference Result 1262 states and 1742 transitions. [2022-11-25 18:28:20,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 18:28:20,243 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-11-25 18:28:20,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:28:20,248 INFO L225 Difference]: With dead ends: 1262 [2022-11-25 18:28:20,248 INFO L226 Difference]: Without dead ends: 1116 [2022-11-25 18:28:20,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-11-25 18:28:20,250 INFO L413 NwaCegarLoop]: 357 mSDtfsCounter, 2939 mSDsluCounter, 1145 mSDsCounter, 0 mSdLazyCounter, 1143 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2939 SdHoareTripleChecker+Valid, 1502 SdHoareTripleChecker+Invalid, 1150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-25 18:28:20,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2939 Valid, 1502 Invalid, 1150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1143 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-25 18:28:20,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1116 states. [2022-11-25 18:28:20,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1116 to 551. [2022-11-25 18:28:20,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 535 states have (on average 1.3682242990654205) internal successors, (732), 550 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:28:20,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 732 transitions. [2022-11-25 18:28:20,374 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 732 transitions. Word has length 79 [2022-11-25 18:28:20,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:28:20,375 INFO L495 AbstractCegarLoop]: Abstraction has 551 states and 732 transitions. [2022-11-25 18:28:20,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:28:20,375 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 732 transitions. [2022-11-25 18:28:20,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-25 18:28:20,377 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:28:20,377 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:28:20,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-25 18:28:20,377 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:28:20,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:28:20,378 INFO L85 PathProgramCache]: Analyzing trace with hash 1616040407, now seen corresponding path program 1 times [2022-11-25 18:28:20,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:28:20,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404365731] [2022-11-25 18:28:20,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:28:20,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:28:20,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:28:20,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:28:20,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:28:20,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404365731] [2022-11-25 18:28:20,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404365731] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:28:20,622 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:28:20,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 18:28:20,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784680013] [2022-11-25 18:28:20,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:28:20,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 18:28:20,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:28:20,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 18:28:20,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-25 18:28:20,624 INFO L87 Difference]: Start difference. First operand 551 states and 732 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:28:22,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:28:22,055 INFO L93 Difference]: Finished difference Result 1308 states and 1809 transitions. [2022-11-25 18:28:22,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 18:28:22,056 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-11-25 18:28:22,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:28:22,060 INFO L225 Difference]: With dead ends: 1308 [2022-11-25 18:28:22,061 INFO L226 Difference]: Without dead ends: 1136 [2022-11-25 18:28:22,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-25 18:28:22,062 INFO L413 NwaCegarLoop]: 432 mSDtfsCounter, 1429 mSDsluCounter, 1355 mSDsCounter, 0 mSdLazyCounter, 1279 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1429 SdHoareTripleChecker+Valid, 1787 SdHoareTripleChecker+Invalid, 1285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-25 18:28:22,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1429 Valid, 1787 Invalid, 1285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1279 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-25 18:28:22,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1136 states. [2022-11-25 18:28:22,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1136 to 551. [2022-11-25 18:28:22,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 535 states have (on average 1.3644859813084111) internal successors, (730), 550 states have internal predecessors, (730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:28:22,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 730 transitions. [2022-11-25 18:28:22,179 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 730 transitions. Word has length 79 [2022-11-25 18:28:22,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:28:22,180 INFO L495 AbstractCegarLoop]: Abstraction has 551 states and 730 transitions. [2022-11-25 18:28:22,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:28:22,180 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 730 transitions. [2022-11-25 18:28:22,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-25 18:28:22,181 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:28:22,182 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:28:22,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-25 18:28:22,182 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:28:22,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:28:22,183 INFO L85 PathProgramCache]: Analyzing trace with hash -1975429315, now seen corresponding path program 1 times [2022-11-25 18:28:22,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:28:22,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367748401] [2022-11-25 18:28:22,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:28:22,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:28:22,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:28:22,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:28:22,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:28:22,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367748401] [2022-11-25 18:28:22,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367748401] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:28:22,459 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:28:22,460 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 18:28:22,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270689850] [2022-11-25 18:28:22,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:28:22,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 18:28:22,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:28:22,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 18:28:22,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-25 18:28:22,463 INFO L87 Difference]: Start difference. First operand 551 states and 730 transitions. Second operand has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:28:23,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:28:23,998 INFO L93 Difference]: Finished difference Result 1298 states and 1793 transitions. [2022-11-25 18:28:23,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 18:28:23,999 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-11-25 18:28:23,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:28:24,004 INFO L225 Difference]: With dead ends: 1298 [2022-11-25 18:28:24,004 INFO L226 Difference]: Without dead ends: 1136 [2022-11-25 18:28:24,005 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-25 18:28:24,005 INFO L413 NwaCegarLoop]: 507 mSDtfsCounter, 2066 mSDsluCounter, 1416 mSDsCounter, 0 mSdLazyCounter, 1406 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2066 SdHoareTripleChecker+Valid, 1923 SdHoareTripleChecker+Invalid, 1414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-25 18:28:24,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2066 Valid, 1923 Invalid, 1414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1406 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-25 18:28:24,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1136 states. [2022-11-25 18:28:24,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1136 to 547. [2022-11-25 18:28:24,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 531 states have (on average 1.3653483992467044) internal successors, (725), 546 states have internal predecessors, (725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:28:24,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 725 transitions. [2022-11-25 18:28:24,137 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 725 transitions. Word has length 80 [2022-11-25 18:28:24,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:28:24,137 INFO L495 AbstractCegarLoop]: Abstraction has 547 states and 725 transitions. [2022-11-25 18:28:24,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:28:24,137 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 725 transitions. [2022-11-25 18:28:24,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-25 18:28:24,139 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:28:24,139 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:28:24,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-25 18:28:24,140 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:28:24,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:28:24,140 INFO L85 PathProgramCache]: Analyzing trace with hash 2135531548, now seen corresponding path program 1 times [2022-11-25 18:28:24,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:28:24,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145545183] [2022-11-25 18:28:24,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:28:24,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:28:24,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:28:24,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:28:24,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:28:24,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145545183] [2022-11-25 18:28:24,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145545183] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:28:24,442 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:28:24,442 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 18:28:24,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192756271] [2022-11-25 18:28:24,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:28:24,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 18:28:24,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:28:24,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 18:28:24,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-25 18:28:24,444 INFO L87 Difference]: Start difference. First operand 547 states and 725 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:28:26,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:28:26,057 INFO L93 Difference]: Finished difference Result 1221 states and 1674 transitions. [2022-11-25 18:28:26,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 18:28:26,057 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-11-25 18:28:26,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:28:26,060 INFO L225 Difference]: With dead ends: 1221 [2022-11-25 18:28:26,060 INFO L226 Difference]: Without dead ends: 1088 [2022-11-25 18:28:26,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-11-25 18:28:26,061 INFO L413 NwaCegarLoop]: 362 mSDtfsCounter, 2435 mSDsluCounter, 1547 mSDsCounter, 0 mSdLazyCounter, 1441 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2435 SdHoareTripleChecker+Valid, 1909 SdHoareTripleChecker+Invalid, 1448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-25 18:28:26,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2435 Valid, 1909 Invalid, 1448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1441 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-25 18:28:26,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1088 states. [2022-11-25 18:28:26,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1088 to 547. [2022-11-25 18:28:26,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 531 states have (on average 1.3634651600753296) internal successors, (724), 546 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:28:26,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 724 transitions. [2022-11-25 18:28:26,244 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 724 transitions. Word has length 81 [2022-11-25 18:28:26,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:28:26,244 INFO L495 AbstractCegarLoop]: Abstraction has 547 states and 724 transitions. [2022-11-25 18:28:26,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:28:26,245 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 724 transitions. [2022-11-25 18:28:26,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-25 18:28:26,246 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:28:26,246 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:28:26,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-25 18:28:26,247 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:28:26,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:28:26,247 INFO L85 PathProgramCache]: Analyzing trace with hash -247238646, now seen corresponding path program 1 times [2022-11-25 18:28:26,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:28:26,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237061567] [2022-11-25 18:28:26,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:28:26,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:28:26,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:28:26,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:28:26,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:28:26,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237061567] [2022-11-25 18:28:26,518 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237061567] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:28:26,518 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:28:26,518 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 18:28:26,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289864605] [2022-11-25 18:28:26,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:28:26,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 18:28:26,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:28:26,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 18:28:26,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-25 18:28:26,520 INFO L87 Difference]: Start difference. First operand 547 states and 724 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:28:28,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:28:28,083 INFO L93 Difference]: Finished difference Result 1257 states and 1727 transitions. [2022-11-25 18:28:28,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 18:28:28,084 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-11-25 18:28:28,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:28:28,087 INFO L225 Difference]: With dead ends: 1257 [2022-11-25 18:28:28,087 INFO L226 Difference]: Without dead ends: 1112 [2022-11-25 18:28:28,088 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-25 18:28:28,088 INFO L413 NwaCegarLoop]: 459 mSDtfsCounter, 1944 mSDsluCounter, 1359 mSDsCounter, 0 mSdLazyCounter, 1372 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1944 SdHoareTripleChecker+Valid, 1818 SdHoareTripleChecker+Invalid, 1379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-25 18:28:28,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1944 Valid, 1818 Invalid, 1379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1372 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-25 18:28:28,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1112 states. [2022-11-25 18:28:28,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1112 to 547. [2022-11-25 18:28:28,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 531 states have (on average 1.3615819209039548) internal successors, (723), 546 states have internal predecessors, (723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:28:28,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 723 transitions. [2022-11-25 18:28:28,227 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 723 transitions. Word has length 81 [2022-11-25 18:28:28,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:28:28,227 INFO L495 AbstractCegarLoop]: Abstraction has 547 states and 723 transitions. [2022-11-25 18:28:28,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:28:28,227 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 723 transitions. [2022-11-25 18:28:28,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-25 18:28:28,229 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:28:28,229 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:28:28,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-25 18:28:28,230 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:28:28,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:28:28,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1648828412, now seen corresponding path program 1 times [2022-11-25 18:28:28,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:28:28,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285986879] [2022-11-25 18:28:28,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:28:28,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:28:28,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:28:28,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:28:28,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:28:28,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285986879] [2022-11-25 18:28:28,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285986879] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:28:28,530 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:28:28,530 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 18:28:28,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786907546] [2022-11-25 18:28:28,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:28:28,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 18:28:28,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:28:28,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 18:28:28,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-25 18:28:28,532 INFO L87 Difference]: Start difference. First operand 547 states and 723 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:28:30,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:28:30,297 INFO L93 Difference]: Finished difference Result 1218 states and 1669 transitions. [2022-11-25 18:28:30,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 18:28:30,299 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-11-25 18:28:30,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:28:30,302 INFO L225 Difference]: With dead ends: 1218 [2022-11-25 18:28:30,303 INFO L226 Difference]: Without dead ends: 1088 [2022-11-25 18:28:30,303 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-11-25 18:28:30,304 INFO L413 NwaCegarLoop]: 416 mSDtfsCounter, 2329 mSDsluCounter, 1711 mSDsCounter, 0 mSdLazyCounter, 1605 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2329 SdHoareTripleChecker+Valid, 2127 SdHoareTripleChecker+Invalid, 1611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1605 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-25 18:28:30,304 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2329 Valid, 2127 Invalid, 1611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1605 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-25 18:28:30,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1088 states. [2022-11-25 18:28:30,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1088 to 547. [2022-11-25 18:28:30,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 531 states have (on average 1.35969868173258) internal successors, (722), 546 states have internal predecessors, (722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:28:30,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 722 transitions. [2022-11-25 18:28:30,446 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 722 transitions. Word has length 81 [2022-11-25 18:28:30,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:28:30,446 INFO L495 AbstractCegarLoop]: Abstraction has 547 states and 722 transitions. [2022-11-25 18:28:30,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:28:30,447 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 722 transitions. [2022-11-25 18:28:30,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-25 18:28:30,448 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:28:30,448 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:28:30,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-25 18:28:30,449 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:28:30,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:28:30,449 INFO L85 PathProgramCache]: Analyzing trace with hash 1380394973, now seen corresponding path program 1 times [2022-11-25 18:28:30,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:28:30,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416436803] [2022-11-25 18:28:30,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:28:30,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:28:30,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:28:30,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:28:30,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:28:30,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416436803] [2022-11-25 18:28:30,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416436803] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:28:30,918 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:28:30,918 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-25 18:28:30,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594071741] [2022-11-25 18:28:30,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:28:30,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 18:28:30,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:28:30,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 18:28:30,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-25 18:28:30,920 INFO L87 Difference]: Start difference. First operand 547 states and 722 transitions. Second operand has 12 states, 12 states have (on average 6.75) internal successors, (81), 11 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:28:33,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:28:33,908 INFO L93 Difference]: Finished difference Result 1890 states and 2636 transitions. [2022-11-25 18:28:33,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-25 18:28:33,909 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.75) internal successors, (81), 11 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-11-25 18:28:33,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:28:33,913 INFO L225 Difference]: With dead ends: 1890 [2022-11-25 18:28:33,913 INFO L226 Difference]: Without dead ends: 1757 [2022-11-25 18:28:33,914 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-11-25 18:28:33,914 INFO L413 NwaCegarLoop]: 428 mSDtfsCounter, 5170 mSDsluCounter, 1445 mSDsCounter, 0 mSdLazyCounter, 1490 mSolverCounterSat, 150 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5170 SdHoareTripleChecker+Valid, 1873 SdHoareTripleChecker+Invalid, 1640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 150 IncrementalHoareTripleChecker+Valid, 1490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-25 18:28:33,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5170 Valid, 1873 Invalid, 1640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [150 Valid, 1490 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-25 18:28:33,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1757 states. [2022-11-25 18:28:34,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1757 to 551. [2022-11-25 18:28:34,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 535 states have (on average 1.3570093457943926) internal successors, (726), 550 states have internal predecessors, (726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:28:34,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 726 transitions. [2022-11-25 18:28:34,141 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 726 transitions. Word has length 81 [2022-11-25 18:28:34,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:28:34,141 INFO L495 AbstractCegarLoop]: Abstraction has 551 states and 726 transitions. [2022-11-25 18:28:34,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.75) internal successors, (81), 11 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:28:34,142 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 726 transitions. [2022-11-25 18:28:34,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-25 18:28:34,143 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:28:34,143 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:28:34,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-25 18:28:34,144 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:28:34,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:28:34,144 INFO L85 PathProgramCache]: Analyzing trace with hash -90069907, now seen corresponding path program 1 times [2022-11-25 18:28:34,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:28:34,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911070549] [2022-11-25 18:28:34,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:28:34,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:28:34,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:28:34,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:28:34,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:28:34,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911070549] [2022-11-25 18:28:34,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911070549] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:28:34,454 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:28:34,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 18:28:34,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690715359] [2022-11-25 18:28:34,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:28:34,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 18:28:34,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:28:34,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 18:28:34,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-25 18:28:34,456 INFO L87 Difference]: Start difference. First operand 551 states and 726 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:28:36,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:28:36,331 INFO L93 Difference]: Finished difference Result 1218 states and 1667 transitions. [2022-11-25 18:28:36,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 18:28:36,334 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-11-25 18:28:36,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:28:36,337 INFO L225 Difference]: With dead ends: 1218 [2022-11-25 18:28:36,337 INFO L226 Difference]: Without dead ends: 1088 [2022-11-25 18:28:36,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-11-25 18:28:36,339 INFO L413 NwaCegarLoop]: 417 mSDtfsCounter, 2322 mSDsluCounter, 1714 mSDsCounter, 0 mSdLazyCounter, 1589 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2322 SdHoareTripleChecker+Valid, 2131 SdHoareTripleChecker+Invalid, 1595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-25 18:28:36,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2322 Valid, 2131 Invalid, 1595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1589 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-25 18:28:36,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1088 states. [2022-11-25 18:28:36,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1088 to 551. [2022-11-25 18:28:36,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 535 states have (on average 1.355140186915888) internal successors, (725), 550 states have internal predecessors, (725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:28:36,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 725 transitions. [2022-11-25 18:28:36,499 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 725 transitions. Word has length 81 [2022-11-25 18:28:36,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:28:36,499 INFO L495 AbstractCegarLoop]: Abstraction has 551 states and 725 transitions. [2022-11-25 18:28:36,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:28:36,499 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 725 transitions. [2022-11-25 18:28:36,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-25 18:28:36,500 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:28:36,500 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:28:36,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-25 18:28:36,500 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:28:36,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:28:36,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1355696644, now seen corresponding path program 1 times [2022-11-25 18:28:36,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:28:36,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637700657] [2022-11-25 18:28:36,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:28:36,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:28:36,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:28:36,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:28:36,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:28:36,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637700657] [2022-11-25 18:28:36,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637700657] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:28:36,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:28:36,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 18:28:36,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003670995] [2022-11-25 18:28:36,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:28:36,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 18:28:36,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:28:36,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 18:28:36,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-25 18:28:36,755 INFO L87 Difference]: Start difference. First operand 551 states and 725 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:28:38,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:28:38,556 INFO L93 Difference]: Finished difference Result 1093 states and 1478 transitions. [2022-11-25 18:28:38,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 18:28:38,557 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-11-25 18:28:38,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:28:38,559 INFO L225 Difference]: With dead ends: 1093 [2022-11-25 18:28:38,559 INFO L226 Difference]: Without dead ends: 1088 [2022-11-25 18:28:38,560 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-25 18:28:38,560 INFO L413 NwaCegarLoop]: 465 mSDtfsCounter, 2349 mSDsluCounter, 1384 mSDsCounter, 0 mSdLazyCounter, 1457 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2349 SdHoareTripleChecker+Valid, 1849 SdHoareTripleChecker+Invalid, 1463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-25 18:28:38,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2349 Valid, 1849 Invalid, 1463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1457 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-25 18:28:38,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1088 states. [2022-11-25 18:28:38,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1088 to 551. [2022-11-25 18:28:38,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 535 states have (on average 1.3532710280373832) internal successors, (724), 550 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:28:38,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 724 transitions. [2022-11-25 18:28:38,744 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 724 transitions. Word has length 81 [2022-11-25 18:28:38,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:28:38,745 INFO L495 AbstractCegarLoop]: Abstraction has 551 states and 724 transitions. [2022-11-25 18:28:38,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:28:38,745 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 724 transitions. [2022-11-25 18:28:38,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-25 18:28:38,747 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:28:38,747 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:28:38,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-25 18:28:38,747 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:28:38,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:28:38,748 INFO L85 PathProgramCache]: Analyzing trace with hash 558624169, now seen corresponding path program 1 times [2022-11-25 18:28:38,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:28:38,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699457266] [2022-11-25 18:28:38,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:28:38,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:28:38,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:28:39,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:28:39,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:28:39,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699457266] [2022-11-25 18:28:39,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699457266] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:28:39,282 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:28:39,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-25 18:28:39,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508143109] [2022-11-25 18:28:39,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:28:39,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 18:28:39,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:28:39,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 18:28:39,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-25 18:28:39,284 INFO L87 Difference]: Start difference. First operand 551 states and 724 transitions. Second operand has 12 states, 12 states have (on average 6.75) internal successors, (81), 11 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:28:42,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:28:42,614 INFO L93 Difference]: Finished difference Result 1884 states and 2626 transitions. [2022-11-25 18:28:42,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-25 18:28:42,614 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.75) internal successors, (81), 11 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-11-25 18:28:42,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:28:42,621 INFO L225 Difference]: With dead ends: 1884 [2022-11-25 18:28:42,622 INFO L226 Difference]: Without dead ends: 1754 [2022-11-25 18:28:42,623 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-11-25 18:28:42,623 INFO L413 NwaCegarLoop]: 421 mSDtfsCounter, 5223 mSDsluCounter, 1708 mSDsCounter, 0 mSdLazyCounter, 1727 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5223 SdHoareTripleChecker+Valid, 2129 SdHoareTripleChecker+Invalid, 1879 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 1727 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-25 18:28:42,624 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5223 Valid, 2129 Invalid, 1879 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 1727 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-25 18:28:42,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1754 states. [2022-11-25 18:28:42,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1754 to 555. [2022-11-25 18:28:42,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 539 states have (on average 1.3506493506493507) internal successors, (728), 554 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:28:42,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 728 transitions. [2022-11-25 18:28:42,789 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 728 transitions. Word has length 81 [2022-11-25 18:28:42,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:28:42,790 INFO L495 AbstractCegarLoop]: Abstraction has 555 states and 728 transitions. [2022-11-25 18:28:42,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.75) internal successors, (81), 11 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:28:42,790 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 728 transitions. [2022-11-25 18:28:42,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-25 18:28:42,792 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:28:42,792 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:28:42,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-25 18:28:42,792 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:28:42,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:28:42,793 INFO L85 PathProgramCache]: Analyzing trace with hash -237124242, now seen corresponding path program 1 times [2022-11-25 18:28:42,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:28:42,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880437849] [2022-11-25 18:28:42,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:28:42,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:28:42,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:28:43,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:28:43,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:28:43,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880437849] [2022-11-25 18:28:43,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880437849] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:28:43,131 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:28:43,132 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 18:28:43,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948572675] [2022-11-25 18:28:43,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:28:43,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 18:28:43,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:28:43,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 18:28:43,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-25 18:28:43,135 INFO L87 Difference]: Start difference. First operand 555 states and 728 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:28:44,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:28:44,982 INFO L93 Difference]: Finished difference Result 1216 states and 1661 transitions. [2022-11-25 18:28:44,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 18:28:44,983 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-11-25 18:28:44,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:28:44,986 INFO L225 Difference]: With dead ends: 1216 [2022-11-25 18:28:44,986 INFO L226 Difference]: Without dead ends: 1088 [2022-11-25 18:28:44,987 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-11-25 18:28:44,988 INFO L413 NwaCegarLoop]: 369 mSDtfsCounter, 2398 mSDsluCounter, 1572 mSDsCounter, 0 mSdLazyCounter, 1421 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2398 SdHoareTripleChecker+Valid, 1941 SdHoareTripleChecker+Invalid, 1428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-25 18:28:44,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2398 Valid, 1941 Invalid, 1428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1421 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-25 18:28:44,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1088 states. [2022-11-25 18:28:45,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1088 to 555. [2022-11-25 18:28:45,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 539 states have (on average 1.3487940630797774) internal successors, (727), 554 states have internal predecessors, (727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:28:45,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 727 transitions. [2022-11-25 18:28:45,199 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 727 transitions. Word has length 81 [2022-11-25 18:28:45,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:28:45,200 INFO L495 AbstractCegarLoop]: Abstraction has 555 states and 727 transitions. [2022-11-25 18:28:45,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:28:45,200 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 727 transitions. [2022-11-25 18:28:45,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-25 18:28:45,201 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:28:45,201 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:28:45,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-25 18:28:45,202 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:28:45,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:28:45,202 INFO L85 PathProgramCache]: Analyzing trace with hash 1610096682, now seen corresponding path program 1 times [2022-11-25 18:28:45,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:28:45,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894321380] [2022-11-25 18:28:45,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:28:45,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:28:45,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:28:45,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:28:45,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:28:45,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894321380] [2022-11-25 18:28:45,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894321380] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:28:45,446 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:28:45,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 18:28:45,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396066418] [2022-11-25 18:28:45,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:28:45,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 18:28:45,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:28:45,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 18:28:45,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-25 18:28:45,448 INFO L87 Difference]: Start difference. First operand 555 states and 727 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:28:47,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:28:47,022 INFO L93 Difference]: Finished difference Result 1272 states and 1738 transitions. [2022-11-25 18:28:47,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 18:28:47,023 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-11-25 18:28:47,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:28:47,026 INFO L225 Difference]: With dead ends: 1272 [2022-11-25 18:28:47,026 INFO L226 Difference]: Without dead ends: 1120 [2022-11-25 18:28:47,027 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-25 18:28:47,027 INFO L413 NwaCegarLoop]: 380 mSDtfsCounter, 2275 mSDsluCounter, 1228 mSDsCounter, 0 mSdLazyCounter, 1076 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2275 SdHoareTripleChecker+Valid, 1608 SdHoareTripleChecker+Invalid, 1083 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1076 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-25 18:28:47,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2275 Valid, 1608 Invalid, 1083 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1076 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-25 18:28:47,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1120 states. [2022-11-25 18:28:47,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1120 to 555. [2022-11-25 18:28:47,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 539 states have (on average 1.3450834879406308) internal successors, (725), 554 states have internal predecessors, (725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:28:47,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 725 transitions. [2022-11-25 18:28:47,193 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 725 transitions. Word has length 81 [2022-11-25 18:28:47,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:28:47,193 INFO L495 AbstractCegarLoop]: Abstraction has 555 states and 725 transitions. [2022-11-25 18:28:47,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:28:47,194 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 725 transitions. [2022-11-25 18:28:47,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-25 18:28:47,195 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:28:47,195 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:28:47,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-25 18:28:47,196 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:28:47,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:28:47,196 INFO L85 PathProgramCache]: Analyzing trace with hash -302100420, now seen corresponding path program 1 times [2022-11-25 18:28:47,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:28:47,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703480992] [2022-11-25 18:28:47,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:28:47,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:28:47,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:28:47,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:28:47,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:28:47,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703480992] [2022-11-25 18:28:47,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703480992] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:28:47,501 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:28:47,501 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 18:28:47,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344684941] [2022-11-25 18:28:47,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:28:47,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 18:28:47,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:28:47,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 18:28:47,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-25 18:28:47,503 INFO L87 Difference]: Start difference. First operand 555 states and 725 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:28:49,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:28:49,368 INFO L93 Difference]: Finished difference Result 1224 states and 1667 transitions. [2022-11-25 18:28:49,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 18:28:49,369 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-11-25 18:28:49,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:28:49,371 INFO L225 Difference]: With dead ends: 1224 [2022-11-25 18:28:49,371 INFO L226 Difference]: Without dead ends: 1088 [2022-11-25 18:28:49,372 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-11-25 18:28:49,373 INFO L413 NwaCegarLoop]: 383 mSDtfsCounter, 2372 mSDsluCounter, 1610 mSDsCounter, 0 mSdLazyCounter, 1432 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2372 SdHoareTripleChecker+Valid, 1993 SdHoareTripleChecker+Invalid, 1439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-25 18:28:49,373 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2372 Valid, 1993 Invalid, 1439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1432 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-25 18:28:49,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1088 states. [2022-11-25 18:28:49,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1088 to 555. [2022-11-25 18:28:49,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 539 states have (on average 1.3413729128014842) internal successors, (723), 554 states have internal predecessors, (723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:28:49,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 723 transitions. [2022-11-25 18:28:49,556 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 723 transitions. Word has length 81 [2022-11-25 18:28:49,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:28:49,556 INFO L495 AbstractCegarLoop]: Abstraction has 555 states and 723 transitions. [2022-11-25 18:28:49,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:28:49,557 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 723 transitions. [2022-11-25 18:28:49,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-25 18:28:49,558 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:28:49,558 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:28:49,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-25 18:28:49,558 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:28:49,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:28:49,559 INFO L85 PathProgramCache]: Analyzing trace with hash -286808248, now seen corresponding path program 1 times [2022-11-25 18:28:49,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:28:49,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991361613] [2022-11-25 18:28:49,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:28:49,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:28:49,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:28:50,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:28:50,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:28:50,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991361613] [2022-11-25 18:28:50,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991361613] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:28:50,005 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:28:50,005 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-25 18:28:50,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630365448] [2022-11-25 18:28:50,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:28:50,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 18:28:50,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:28:50,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 18:28:50,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-25 18:28:50,007 INFO L87 Difference]: Start difference. First operand 555 states and 723 transitions. Second operand has 12 states, 12 states have (on average 6.75) internal successors, (81), 11 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:28:54,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:28:54,022 INFO L93 Difference]: Finished difference Result 2388 states and 3347 transitions. [2022-11-25 18:28:54,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-25 18:28:54,022 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.75) internal successors, (81), 11 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-11-25 18:28:54,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:28:54,026 INFO L225 Difference]: With dead ends: 2388 [2022-11-25 18:28:54,026 INFO L226 Difference]: Without dead ends: 2196 [2022-11-25 18:28:54,027 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-11-25 18:28:54,027 INFO L413 NwaCegarLoop]: 582 mSDtfsCounter, 5070 mSDsluCounter, 2455 mSDsCounter, 0 mSdLazyCounter, 2267 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5070 SdHoareTripleChecker+Valid, 3037 SdHoareTripleChecker+Invalid, 2398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 2267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-25 18:28:54,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5070 Valid, 3037 Invalid, 2398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 2267 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-25 18:28:54,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2196 states. [2022-11-25 18:28:54,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2196 to 563. [2022-11-25 18:28:54,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 547 states have (on average 1.336380255941499) internal successors, (731), 562 states have internal predecessors, (731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:28:54,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 731 transitions. [2022-11-25 18:28:54,235 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 731 transitions. Word has length 81 [2022-11-25 18:28:54,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:28:54,235 INFO L495 AbstractCegarLoop]: Abstraction has 563 states and 731 transitions. [2022-11-25 18:28:54,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.75) internal successors, (81), 11 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:28:54,235 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 731 transitions. [2022-11-25 18:28:54,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-25 18:28:54,236 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:28:54,236 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:28:54,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-25 18:28:54,236 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)] === [2022-11-25 18:28:54,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:28:54,237 INFO L85 PathProgramCache]: Analyzing trace with hash -1055423202, now seen corresponding path program 1 times [2022-11-25 18:28:54,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:28:54,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349235460] [2022-11-25 18:28:54,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:28:54,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:28:54,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:28:54,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:28:54,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:28:54,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349235460] [2022-11-25 18:28:54,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349235460] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:28:54,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:28:54,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 18:28:54,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916020116] [2022-11-25 18:28:54,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:28:54,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 18:28:54,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:28:54,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 18:28:54,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-25 18:28:54,536 INFO L87 Difference]: Start difference. First operand 563 states and 731 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:28:56,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:28:56,466 INFO L93 Difference]: Finished difference Result 1101 states and 1478 transitions. [2022-11-25 18:28:56,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 18:28:56,467 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-11-25 18:28:56,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:28:56,469 INFO L225 Difference]: With dead ends: 1101 [2022-11-25 18:28:56,469 INFO L226 Difference]: Without dead ends: 1096 [2022-11-25 18:28:56,469 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-11-25 18:28:56,470 INFO L413 NwaCegarLoop]: 383 mSDtfsCounter, 2367 mSDsluCounter, 1611 mSDsCounter, 0 mSdLazyCounter, 1428 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2367 SdHoareTripleChecker+Valid, 1994 SdHoareTripleChecker+Invalid, 1435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-25 18:28:56,470 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2367 Valid, 1994 Invalid, 1435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1428 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-25 18:28:56,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1096 states. [2022-11-25 18:28:56,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1096 to 563. [2022-11-25 18:28:56,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 547 states have (on average 1.3327239488117002) internal successors, (729), 562 states have internal predecessors, (729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:28:56,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 729 transitions. [2022-11-25 18:28:56,664 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 729 transitions. Word has length 81 [2022-11-25 18:28:56,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:28:56,664 INFO L495 AbstractCegarLoop]: Abstraction has 563 states and 729 transitions. [2022-11-25 18:28:56,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:28:56,664 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 729 transitions. [2022-11-25 18:28:56,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-25 18:28:56,665 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:28:56,665 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:28:56,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-25 18:28:56,665 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:28:56,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:28:56,666 INFO L85 PathProgramCache]: Analyzing trace with hash 856773900, now seen corresponding path program 1 times [2022-11-25 18:28:56,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:28:56,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025339407] [2022-11-25 18:28:56,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:28:56,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:28:56,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:28:57,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:28:57,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:28:57,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025339407] [2022-11-25 18:28:57,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025339407] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:28:57,104 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:28:57,104 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-25 18:28:57,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544775128] [2022-11-25 18:28:57,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:28:57,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 18:28:57,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:28:57,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 18:28:57,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-25 18:28:57,105 INFO L87 Difference]: Start difference. First operand 563 states and 729 transitions. Second operand has 12 states, 12 states have (on average 6.75) internal successors, (81), 11 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:29:00,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:29:00,913 INFO L93 Difference]: Finished difference Result 1986 states and 2754 transitions. [2022-11-25 18:29:00,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-25 18:29:00,913 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.75) internal successors, (81), 11 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-11-25 18:29:00,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:29:00,917 INFO L225 Difference]: With dead ends: 1986 [2022-11-25 18:29:00,917 INFO L226 Difference]: Without dead ends: 1969 [2022-11-25 18:29:00,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-11-25 18:29:00,918 INFO L413 NwaCegarLoop]: 504 mSDtfsCounter, 4201 mSDsluCounter, 1699 mSDsCounter, 0 mSdLazyCounter, 1646 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4201 SdHoareTripleChecker+Valid, 2203 SdHoareTripleChecker+Invalid, 1787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 1646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-25 18:29:00,918 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4201 Valid, 2203 Invalid, 1787 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [141 Valid, 1646 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-25 18:29:00,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1969 states. [2022-11-25 18:29:01,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1969 to 571. [2022-11-25 18:29:01,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 555 states have (on average 1.327927927927928) internal successors, (737), 570 states have internal predecessors, (737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:29:01,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 737 transitions. [2022-11-25 18:29:01,186 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 737 transitions. Word has length 81 [2022-11-25 18:29:01,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:29:01,186 INFO L495 AbstractCegarLoop]: Abstraction has 571 states and 737 transitions. [2022-11-25 18:29:01,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.75) internal successors, (81), 11 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:29:01,186 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 737 transitions. [2022-11-25 18:29:01,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-25 18:29:01,187 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:29:01,187 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:29:01,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-25 18:29:01,187 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:29:01,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:29:01,187 INFO L85 PathProgramCache]: Analyzing trace with hash -544552721, now seen corresponding path program 1 times [2022-11-25 18:29:01,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:29:01,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653031946] [2022-11-25 18:29:01,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:29:01,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:29:01,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:29:01,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:29:01,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:29:01,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653031946] [2022-11-25 18:29:01,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653031946] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:29:01,470 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:29:01,470 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 18:29:01,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535648386] [2022-11-25 18:29:01,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:29:01,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 18:29:01,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:29:01,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 18:29:01,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-25 18:29:01,472 INFO L87 Difference]: Start difference. First operand 571 states and 737 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:29:03,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:29:03,545 INFO L93 Difference]: Finished difference Result 1236 states and 1674 transitions. [2022-11-25 18:29:03,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 18:29:03,546 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-11-25 18:29:03,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:29:03,548 INFO L225 Difference]: With dead ends: 1236 [2022-11-25 18:29:03,548 INFO L226 Difference]: Without dead ends: 1104 [2022-11-25 18:29:03,549 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-11-25 18:29:03,549 INFO L413 NwaCegarLoop]: 383 mSDtfsCounter, 2361 mSDsluCounter, 1614 mSDsCounter, 0 mSdLazyCounter, 1424 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2361 SdHoareTripleChecker+Valid, 1997 SdHoareTripleChecker+Invalid, 1431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-25 18:29:03,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2361 Valid, 1997 Invalid, 1431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1424 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-25 18:29:03,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1104 states. [2022-11-25 18:29:03,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1104 to 571. [2022-11-25 18:29:03,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 555 states have (on average 1.3243243243243243) internal successors, (735), 570 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:29:03,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 735 transitions. [2022-11-25 18:29:03,771 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 735 transitions. Word has length 81 [2022-11-25 18:29:03,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:29:03,771 INFO L495 AbstractCegarLoop]: Abstraction has 571 states and 735 transitions. [2022-11-25 18:29:03,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:29:03,772 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 735 transitions. [2022-11-25 18:29:03,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-25 18:29:03,773 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:29:03,773 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:29:03,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-25 18:29:03,773 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:29:03,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:29:03,773 INFO L85 PathProgramCache]: Analyzing trace with hash -1810559777, now seen corresponding path program 1 times [2022-11-25 18:29:03,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:29:03,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517353503] [2022-11-25 18:29:03,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:29:03,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:29:03,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:29:04,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:29:04,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:29:04,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517353503] [2022-11-25 18:29:04,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517353503] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:29:04,221 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:29:04,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-25 18:29:04,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571439473] [2022-11-25 18:29:04,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:29:04,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 18:29:04,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:29:04,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 18:29:04,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-25 18:29:04,223 INFO L87 Difference]: Start difference. First operand 571 states and 735 transitions. Second operand has 12 states, 12 states have (on average 6.75) internal successors, (81), 11 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:29:07,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:29:07,898 INFO L93 Difference]: Finished difference Result 1778 states and 2446 transitions. [2022-11-25 18:29:07,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-25 18:29:07,898 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.75) internal successors, (81), 11 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-11-25 18:29:07,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:29:07,900 INFO L225 Difference]: With dead ends: 1778 [2022-11-25 18:29:07,900 INFO L226 Difference]: Without dead ends: 1773 [2022-11-25 18:29:07,901 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-11-25 18:29:07,902 INFO L413 NwaCegarLoop]: 435 mSDtfsCounter, 4180 mSDsluCounter, 1871 mSDsCounter, 0 mSdLazyCounter, 1790 mSolverCounterSat, 145 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4180 SdHoareTripleChecker+Valid, 2306 SdHoareTripleChecker+Invalid, 1935 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 145 IncrementalHoareTripleChecker+Valid, 1790 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-25 18:29:07,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4180 Valid, 2306 Invalid, 1935 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [145 Valid, 1790 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-25 18:29:07,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1773 states. [2022-11-25 18:29:08,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1773 to 579. [2022-11-25 18:29:08,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 579 states, 563 states have (on average 1.3197158081705151) internal successors, (743), 578 states have internal predecessors, (743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:29:08,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 743 transitions. [2022-11-25 18:29:08,159 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 743 transitions. Word has length 81 [2022-11-25 18:29:08,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:29:08,160 INFO L495 AbstractCegarLoop]: Abstraction has 579 states and 743 transitions. [2022-11-25 18:29:08,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.75) internal successors, (81), 11 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:29:08,160 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 743 transitions. [2022-11-25 18:29:08,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-25 18:29:08,161 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:29:08,161 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:29:08,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-11-25 18:29:08,162 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:29:08,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:29:08,162 INFO L85 PathProgramCache]: Analyzing trace with hash -423596437, now seen corresponding path program 1 times [2022-11-25 18:29:08,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:29:08,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364212465] [2022-11-25 18:29:08,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:29:08,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:29:08,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:29:08,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:29:08,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:29:08,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364212465] [2022-11-25 18:29:08,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364212465] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:29:08,393 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:29:08,393 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 18:29:08,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131908527] [2022-11-25 18:29:08,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:29:08,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 18:29:08,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:29:08,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 18:29:08,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-25 18:29:08,395 INFO L87 Difference]: Start difference. First operand 579 states and 743 transitions. Second operand has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:29:10,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:29:10,329 INFO L93 Difference]: Finished difference Result 1237 states and 1671 transitions. [2022-11-25 18:29:10,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 18:29:10,330 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2022-11-25 18:29:10,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:29:10,331 INFO L225 Difference]: With dead ends: 1237 [2022-11-25 18:29:10,331 INFO L226 Difference]: Without dead ends: 1104 [2022-11-25 18:29:10,332 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-25 18:29:10,332 INFO L413 NwaCegarLoop]: 436 mSDtfsCounter, 2525 mSDsluCounter, 1293 mSDsCounter, 0 mSdLazyCounter, 1282 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2525 SdHoareTripleChecker+Valid, 1729 SdHoareTripleChecker+Invalid, 1289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-25 18:29:10,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2525 Valid, 1729 Invalid, 1289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1282 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-25 18:29:10,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1104 states. [2022-11-25 18:29:10,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1104 to 575. [2022-11-25 18:29:10,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 575 states, 559 states have (on average 1.3202146690518783) internal successors, (738), 574 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:29:10,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 738 transitions. [2022-11-25 18:29:10,554 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 738 transitions. Word has length 82 [2022-11-25 18:29:10,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:29:10,554 INFO L495 AbstractCegarLoop]: Abstraction has 575 states and 738 transitions. [2022-11-25 18:29:10,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:29:10,555 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 738 transitions. [2022-11-25 18:29:10,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-25 18:29:10,555 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:29:10,555 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:29:10,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-11-25 18:29:10,556 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:29:10,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:29:10,556 INFO L85 PathProgramCache]: Analyzing trace with hash 1358540439, now seen corresponding path program 1 times [2022-11-25 18:29:10,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:29:10,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720425926] [2022-11-25 18:29:10,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:29:10,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:29:10,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:29:10,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:29:10,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:29:10,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720425926] [2022-11-25 18:29:10,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720425926] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:29:10,784 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:29:10,784 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 18:29:10,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413638727] [2022-11-25 18:29:10,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:29:10,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 18:29:10,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:29:10,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 18:29:10,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-25 18:29:10,785 INFO L87 Difference]: Start difference. First operand 575 states and 738 transitions. Second operand has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:29:12,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:29:12,793 INFO L93 Difference]: Finished difference Result 1234 states and 1667 transitions. [2022-11-25 18:29:12,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 18:29:12,793 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2022-11-25 18:29:12,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:29:12,795 INFO L225 Difference]: With dead ends: 1234 [2022-11-25 18:29:12,795 INFO L226 Difference]: Without dead ends: 1104 [2022-11-25 18:29:12,795 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-25 18:29:12,801 INFO L413 NwaCegarLoop]: 437 mSDtfsCounter, 1946 mSDsluCounter, 1296 mSDsCounter, 0 mSdLazyCounter, 1282 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1946 SdHoareTripleChecker+Valid, 1733 SdHoareTripleChecker+Invalid, 1289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-25 18:29:12,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1946 Valid, 1733 Invalid, 1289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1282 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-25 18:29:12,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1104 states. [2022-11-25 18:29:13,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1104 to 571. [2022-11-25 18:29:13,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 555 states have (on average 1.3207207207207208) internal successors, (733), 570 states have internal predecessors, (733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:29:13,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 733 transitions. [2022-11-25 18:29:13,046 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 733 transitions. Word has length 82 [2022-11-25 18:29:13,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:29:13,046 INFO L495 AbstractCegarLoop]: Abstraction has 571 states and 733 transitions. [2022-11-25 18:29:13,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:29:13,047 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 733 transitions. [2022-11-25 18:29:13,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-25 18:29:13,048 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:29:13,048 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:29:13,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-11-25 18:29:13,048 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:29:13,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:29:13,048 INFO L85 PathProgramCache]: Analyzing trace with hash 1796987520, now seen corresponding path program 1 times [2022-11-25 18:29:13,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:29:13,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944457619] [2022-11-25 18:29:13,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:29:13,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:29:13,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:29:13,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:29:13,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:29:13,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944457619] [2022-11-25 18:29:13,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944457619] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:29:13,266 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:29:13,267 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 18:29:13,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127494652] [2022-11-25 18:29:13,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:29:13,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 18:29:13,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:29:13,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 18:29:13,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-25 18:29:13,268 INFO L87 Difference]: Start difference. First operand 571 states and 733 transitions. Second operand has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:29:15,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:29:15,389 INFO L93 Difference]: Finished difference Result 1344 states and 1821 transitions. [2022-11-25 18:29:15,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 18:29:15,390 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2022-11-25 18:29:15,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:29:15,392 INFO L225 Difference]: With dead ends: 1344 [2022-11-25 18:29:15,392 INFO L226 Difference]: Without dead ends: 1152 [2022-11-25 18:29:15,393 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-25 18:29:15,393 INFO L413 NwaCegarLoop]: 548 mSDtfsCounter, 1661 mSDsluCounter, 1566 mSDsCounter, 0 mSdLazyCounter, 1519 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1661 SdHoareTripleChecker+Valid, 2114 SdHoareTripleChecker+Invalid, 1524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-25 18:29:15,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1661 Valid, 2114 Invalid, 1524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1519 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-25 18:29:15,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1152 states. [2022-11-25 18:29:15,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1152 to 563. [2022-11-25 18:29:15,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 547 states have (on average 1.3217550274223036) internal successors, (723), 562 states have internal predecessors, (723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:29:15,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 723 transitions. [2022-11-25 18:29:15,625 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 723 transitions. Word has length 82 [2022-11-25 18:29:15,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:29:15,625 INFO L495 AbstractCegarLoop]: Abstraction has 563 states and 723 transitions. [2022-11-25 18:29:15,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:29:15,625 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 723 transitions. [2022-11-25 18:29:15,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-25 18:29:15,626 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:29:15,626 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:29:15,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-11-25 18:29:15,627 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:29:15,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:29:15,627 INFO L85 PathProgramCache]: Analyzing trace with hash -558946144, now seen corresponding path program 1 times [2022-11-25 18:29:15,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:29:15,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475210240] [2022-11-25 18:29:15,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:29:15,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:29:15,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:29:15,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:29:15,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:29:15,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475210240] [2022-11-25 18:29:15,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475210240] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:29:15,846 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:29:15,846 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 18:29:15,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326536526] [2022-11-25 18:29:15,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:29:15,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 18:29:15,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:29:15,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 18:29:15,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-25 18:29:15,848 INFO L87 Difference]: Start difference. First operand 563 states and 723 transitions. Second operand has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:29:17,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:29:17,884 INFO L93 Difference]: Finished difference Result 1101 states and 1468 transitions. [2022-11-25 18:29:17,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 18:29:17,885 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2022-11-25 18:29:17,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:29:17,886 INFO L225 Difference]: With dead ends: 1101 [2022-11-25 18:29:17,887 INFO L226 Difference]: Without dead ends: 1096 [2022-11-25 18:29:17,887 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-25 18:29:17,888 INFO L413 NwaCegarLoop]: 479 mSDtfsCounter, 1228 mSDsluCounter, 1426 mSDsCounter, 0 mSdLazyCounter, 1444 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1228 SdHoareTripleChecker+Valid, 1905 SdHoareTripleChecker+Invalid, 1449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-25 18:29:17,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1228 Valid, 1905 Invalid, 1449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1444 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-25 18:29:17,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1096 states. [2022-11-25 18:29:18,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1096 to 555. [2022-11-25 18:29:18,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 539 states have (on average 1.3228200371057515) internal successors, (713), 554 states have internal predecessors, (713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:29:18,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 713 transitions. [2022-11-25 18:29:18,165 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 713 transitions. Word has length 82 [2022-11-25 18:29:18,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:29:18,165 INFO L495 AbstractCegarLoop]: Abstraction has 555 states and 713 transitions. [2022-11-25 18:29:18,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:29:18,165 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 713 transitions. [2022-11-25 18:29:18,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-25 18:29:18,166 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:29:18,166 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:29:18,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-11-25 18:29:18,166 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:29:18,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:29:18,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1458444177, now seen corresponding path program 1 times [2022-11-25 18:29:18,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:29:18,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171064716] [2022-11-25 18:29:18,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:29:18,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:29:18,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:29:18,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:29:18,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:29:18,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171064716] [2022-11-25 18:29:18,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171064716] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:29:18,349 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:29:18,350 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 18:29:18,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351818528] [2022-11-25 18:29:18,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:29:18,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 18:29:18,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:29:18,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 18:29:18,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-25 18:29:18,351 INFO L87 Difference]: Start difference. First operand 555 states and 713 transitions. Second operand has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:29:20,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:29:20,435 INFO L93 Difference]: Finished difference Result 1129 states and 1510 transitions. [2022-11-25 18:29:20,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 18:29:20,435 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2022-11-25 18:29:20,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:29:20,437 INFO L225 Difference]: With dead ends: 1129 [2022-11-25 18:29:20,437 INFO L226 Difference]: Without dead ends: 1112 [2022-11-25 18:29:20,438 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-25 18:29:20,438 INFO L413 NwaCegarLoop]: 544 mSDtfsCounter, 1146 mSDsluCounter, 1616 mSDsCounter, 0 mSdLazyCounter, 1525 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1146 SdHoareTripleChecker+Valid, 2160 SdHoareTripleChecker+Invalid, 1530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-25 18:29:20,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1146 Valid, 2160 Invalid, 1530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1525 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-25 18:29:20,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1112 states. [2022-11-25 18:29:20,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1112 to 547. [2022-11-25 18:29:20,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 531 states have (on average 1.3239171374764596) internal successors, (703), 546 states have internal predecessors, (703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:29:20,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 703 transitions. [2022-11-25 18:29:20,726 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 703 transitions. Word has length 82 [2022-11-25 18:29:20,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:29:20,726 INFO L495 AbstractCegarLoop]: Abstraction has 547 states and 703 transitions. [2022-11-25 18:29:20,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:29:20,726 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 703 transitions. [2022-11-25 18:29:20,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-25 18:29:20,727 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:29:20,727 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:29:20,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-11-25 18:29:20,727 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:29:20,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:29:20,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1687929497, now seen corresponding path program 1 times [2022-11-25 18:29:20,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:29:20,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281145467] [2022-11-25 18:29:20,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:29:20,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:29:20,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:29:21,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:29:21,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:29:21,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281145467] [2022-11-25 18:29:21,486 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281145467] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:29:21,486 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:29:21,486 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-25 18:29:21,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710487965] [2022-11-25 18:29:21,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:29:21,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-25 18:29:21,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:29:21,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-25 18:29:21,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-25 18:29:21,488 INFO L87 Difference]: Start difference. First operand 547 states and 703 transitions. Second operand has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 13 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:29:24,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:29:24,409 INFO L93 Difference]: Finished difference Result 1380 states and 1793 transitions. [2022-11-25 18:29:24,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-25 18:29:24,409 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 13 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2022-11-25 18:29:24,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:29:24,411 INFO L225 Difference]: With dead ends: 1380 [2022-11-25 18:29:24,411 INFO L226 Difference]: Without dead ends: 1248 [2022-11-25 18:29:24,412 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=158, Invalid=492, Unknown=0, NotChecked=0, Total=650 [2022-11-25 18:29:24,412 INFO L413 NwaCegarLoop]: 566 mSDtfsCounter, 2147 mSDsluCounter, 3647 mSDsCounter, 0 mSdLazyCounter, 1410 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2147 SdHoareTripleChecker+Valid, 4213 SdHoareTripleChecker+Invalid, 1414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-25 18:29:24,412 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2147 Valid, 4213 Invalid, 1414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1410 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-25 18:29:24,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1248 states. [2022-11-25 18:29:24,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1248 to 543. [2022-11-25 18:29:24,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 528 states have (on average 1.321969696969697) internal successors, (698), 542 states have internal predecessors, (698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:29:24,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 698 transitions. [2022-11-25 18:29:24,656 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 698 transitions. Word has length 83 [2022-11-25 18:29:24,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:29:24,656 INFO L495 AbstractCegarLoop]: Abstraction has 543 states and 698 transitions. [2022-11-25 18:29:24,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 13 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:29:24,657 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 698 transitions. [2022-11-25 18:29:24,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-25 18:29:24,657 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:29:24,657 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] [2022-11-25 18:29:24,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-11-25 18:29:24,658 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:29:24,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:29:24,658 INFO L85 PathProgramCache]: Analyzing trace with hash -92587651, now seen corresponding path program 1 times [2022-11-25 18:29:24,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:29:24,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598597341] [2022-11-25 18:29:24,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:29:24,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:29:24,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:29:25,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:29:25,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:29:25,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598597341] [2022-11-25 18:29:25,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598597341] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:29:25,478 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:29:25,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-25 18:29:25,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790775438] [2022-11-25 18:29:25,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:29:25,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-25 18:29:25,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:29:25,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-25 18:29:25,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2022-11-25 18:29:25,479 INFO L87 Difference]: Start difference. First operand 543 states and 698 transitions. Second operand has 15 states, 15 states have (on average 5.533333333333333) internal successors, (83), 15 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:29:27,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:29:27,593 INFO L93 Difference]: Finished difference Result 1013 states and 1364 transitions. [2022-11-25 18:29:27,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-25 18:29:27,594 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.533333333333333) internal successors, (83), 15 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2022-11-25 18:29:27,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:29:27,596 INFO L225 Difference]: With dead ends: 1013 [2022-11-25 18:29:27,596 INFO L226 Difference]: Without dead ends: 775 [2022-11-25 18:29:27,596 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=190, Invalid=512, Unknown=0, NotChecked=0, Total=702 [2022-11-25 18:29:27,597 INFO L413 NwaCegarLoop]: 532 mSDtfsCounter, 1590 mSDsluCounter, 3577 mSDsCounter, 0 mSdLazyCounter, 1014 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1590 SdHoareTripleChecker+Valid, 4109 SdHoareTripleChecker+Invalid, 1020 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1014 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-25 18:29:27,597 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1590 Valid, 4109 Invalid, 1020 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1014 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-25 18:29:27,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 775 states. [2022-11-25 18:29:27,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 775 to 494. [2022-11-25 18:29:27,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 480 states have (on average 1.3208333333333333) internal successors, (634), 493 states have internal predecessors, (634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:29:27,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 634 transitions. [2022-11-25 18:29:27,847 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 634 transitions. Word has length 83 [2022-11-25 18:29:27,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:29:27,847 INFO L495 AbstractCegarLoop]: Abstraction has 494 states and 634 transitions. [2022-11-25 18:29:27,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.533333333333333) internal successors, (83), 15 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:29:27,847 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 634 transitions. [2022-11-25 18:29:27,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-25 18:29:27,848 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:29:27,848 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:29:27,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-11-25 18:29:27,848 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:29:27,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:29:27,848 INFO L85 PathProgramCache]: Analyzing trace with hash -119228615, now seen corresponding path program 1 times [2022-11-25 18:29:27,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:29:27,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134052927] [2022-11-25 18:29:27,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:29:27,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:29:27,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:29:28,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:29:28,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:29:28,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134052927] [2022-11-25 18:29:28,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134052927] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:29:28,413 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:29:28,413 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-25 18:29:28,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122320561] [2022-11-25 18:29:28,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:29:28,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 18:29:28,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:29:28,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 18:29:28,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-25 18:29:28,415 INFO L87 Difference]: Start difference. First operand 494 states and 634 transitions. Second operand has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 12 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:29:30,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:29:30,768 INFO L93 Difference]: Finished difference Result 1472 states and 2039 transitions. [2022-11-25 18:29:30,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 18:29:30,768 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 12 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2022-11-25 18:29:30,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:29:30,771 INFO L225 Difference]: With dead ends: 1472 [2022-11-25 18:29:30,771 INFO L226 Difference]: Without dead ends: 1290 [2022-11-25 18:29:30,772 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-11-25 18:29:30,772 INFO L413 NwaCegarLoop]: 823 mSDtfsCounter, 2447 mSDsluCounter, 3389 mSDsCounter, 0 mSdLazyCounter, 607 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2447 SdHoareTripleChecker+Valid, 4212 SdHoareTripleChecker+Invalid, 611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-25 18:29:30,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2447 Valid, 4212 Invalid, 611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 607 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-25 18:29:30,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1290 states. [2022-11-25 18:29:31,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1290 to 440. [2022-11-25 18:29:31,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 429 states have (on average 1.3123543123543124) internal successors, (563), 439 states have internal predecessors, (563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:29:31,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 563 transitions. [2022-11-25 18:29:31,178 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 563 transitions. Word has length 83 [2022-11-25 18:29:31,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:29:31,178 INFO L495 AbstractCegarLoop]: Abstraction has 440 states and 563 transitions. [2022-11-25 18:29:31,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 12 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:29:31,179 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 563 transitions. [2022-11-25 18:29:31,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-25 18:29:31,180 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:29:31,180 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:29:31,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-11-25 18:29:31,180 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:29:31,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:29:31,181 INFO L85 PathProgramCache]: Analyzing trace with hash 2051820758, now seen corresponding path program 1 times [2022-11-25 18:29:31,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:29:31,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955241483] [2022-11-25 18:29:31,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:29:31,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:29:31,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:29:33,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:29:33,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:29:33,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955241483] [2022-11-25 18:29:33,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955241483] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:29:33,177 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:29:33,177 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-11-25 18:29:33,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771133580] [2022-11-25 18:29:33,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:29:33,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-11-25 18:29:33,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:29:33,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-11-25 18:29:33,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=725, Unknown=0, NotChecked=0, Total=812 [2022-11-25 18:29:33,179 INFO L87 Difference]: Start difference. First operand 440 states and 563 transitions. Second operand has 29 states, 29 states have (on average 2.8620689655172415) internal successors, (83), 29 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:29:39,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:29:39,463 INFO L93 Difference]: Finished difference Result 1102 states and 1458 transitions. [2022-11-25 18:29:39,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-11-25 18:29:39,463 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 2.8620689655172415) internal successors, (83), 29 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2022-11-25 18:29:39,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:29:39,465 INFO L225 Difference]: With dead ends: 1102 [2022-11-25 18:29:39,465 INFO L226 Difference]: Without dead ends: 970 [2022-11-25 18:29:39,466 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 502 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=444, Invalid=2418, Unknown=0, NotChecked=0, Total=2862 [2022-11-25 18:29:39,467 INFO L413 NwaCegarLoop]: 531 mSDtfsCounter, 2207 mSDsluCounter, 7466 mSDsCounter, 0 mSdLazyCounter, 4212 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2207 SdHoareTripleChecker+Valid, 7997 SdHoareTripleChecker+Invalid, 4228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 4212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-11-25 18:29:39,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2207 Valid, 7997 Invalid, 4228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 4212 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-11-25 18:29:39,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 970 states. [2022-11-25 18:29:39,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 970 to 455. [2022-11-25 18:29:39,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 444 states have (on average 1.3153153153153154) internal successors, (584), 454 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:29:39,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 584 transitions. [2022-11-25 18:29:39,762 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 584 transitions. Word has length 83 [2022-11-25 18:29:39,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:29:39,762 INFO L495 AbstractCegarLoop]: Abstraction has 455 states and 584 transitions. [2022-11-25 18:29:39,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 2.8620689655172415) internal successors, (83), 29 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:29:39,762 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 584 transitions. [2022-11-25 18:29:39,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-25 18:29:39,763 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:29:39,763 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:29:39,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-11-25 18:29:39,763 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)] === [2022-11-25 18:29:39,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:29:39,763 INFO L85 PathProgramCache]: Analyzing trace with hash 1787055611, now seen corresponding path program 1 times [2022-11-25 18:29:39,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:29:39,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685831831] [2022-11-25 18:29:39,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:29:39,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:29:39,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:29:40,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:29:40,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:29:40,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685831831] [2022-11-25 18:29:40,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685831831] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:29:40,297 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:29:40,297 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-25 18:29:40,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611107301] [2022-11-25 18:29:40,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:29:40,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-25 18:29:40,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:29:40,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-25 18:29:40,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-25 18:29:40,298 INFO L87 Difference]: Start difference. First operand 455 states and 584 transitions. Second operand has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 13 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:29:42,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:29:42,389 INFO L93 Difference]: Finished difference Result 1298 states and 1815 transitions. [2022-11-25 18:29:42,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-25 18:29:42,389 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 13 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2022-11-25 18:29:42,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:29:42,391 INFO L225 Difference]: With dead ends: 1298 [2022-11-25 18:29:42,391 INFO L226 Difference]: Without dead ends: 1074 [2022-11-25 18:29:42,392 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=118, Invalid=388, Unknown=0, NotChecked=0, Total=506 [2022-11-25 18:29:42,392 INFO L413 NwaCegarLoop]: 491 mSDtfsCounter, 2106 mSDsluCounter, 2818 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2106 SdHoareTripleChecker+Valid, 3309 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 18:29:42,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2106 Valid, 3309 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 18:29:42,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1074 states. [2022-11-25 18:29:42,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1074 to 359. [2022-11-25 18:29:42,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 352 states have (on average 1.3153409090909092) internal successors, (463), 358 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) [2022-11-25 18:29:42,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 463 transitions. [2022-11-25 18:29:42,639 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 463 transitions. Word has length 83 [2022-11-25 18:29:42,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:29:42,639 INFO L495 AbstractCegarLoop]: Abstraction has 359 states and 463 transitions. [2022-11-25 18:29:42,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 13 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:29:42,639 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 463 transitions. [2022-11-25 18:29:42,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-25 18:29:42,639 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:29:42,640 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:29:42,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-11-25 18:29:42,640 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:29:42,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:29:42,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1276582986, now seen corresponding path program 1 times [2022-11-25 18:29:42,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:29:42,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063828497] [2022-11-25 18:29:42,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:29:42,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:29:42,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:29:43,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:29:43,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:29:43,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063828497] [2022-11-25 18:29:43,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063828497] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:29:43,135 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:29:43,135 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-25 18:29:43,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652452628] [2022-11-25 18:29:43,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:29:43,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 18:29:43,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:29:43,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 18:29:43,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-11-25 18:29:43,137 INFO L87 Difference]: Start difference. First operand 359 states and 463 transitions. Second operand has 12 states, 12 states have (on average 7.0) internal successors, (84), 12 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:29:45,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:29:45,683 INFO L93 Difference]: Finished difference Result 1266 states and 1768 transitions. [2022-11-25 18:29:45,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 18:29:45,683 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.0) internal successors, (84), 12 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2022-11-25 18:29:45,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:29:45,685 INFO L225 Difference]: With dead ends: 1266 [2022-11-25 18:29:45,685 INFO L226 Difference]: Without dead ends: 1112 [2022-11-25 18:29:45,686 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=129, Invalid=377, Unknown=0, NotChecked=0, Total=506 [2022-11-25 18:29:45,687 INFO L413 NwaCegarLoop]: 680 mSDtfsCounter, 1407 mSDsluCounter, 2825 mSDsCounter, 0 mSdLazyCounter, 603 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1407 SdHoareTripleChecker+Valid, 3505 SdHoareTripleChecker+Invalid, 606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 603 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-25 18:29:45,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1407 Valid, 3505 Invalid, 606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 603 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-25 18:29:45,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1112 states. [2022-11-25 18:29:46,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1112 to 322. [2022-11-25 18:29:46,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 317 states have (on average 1.2996845425867507) internal successors, (412), 321 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:29:46,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 412 transitions. [2022-11-25 18:29:46,013 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 412 transitions. Word has length 84 [2022-11-25 18:29:46,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:29:46,014 INFO L495 AbstractCegarLoop]: Abstraction has 322 states and 412 transitions. [2022-11-25 18:29:46,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.0) internal successors, (84), 12 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:29:46,014 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 412 transitions. [2022-11-25 18:29:46,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-25 18:29:46,015 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:29:46,015 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:29:46,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-11-25 18:29:46,015 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:29:46,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:29:46,016 INFO L85 PathProgramCache]: Analyzing trace with hash -610164347, now seen corresponding path program 1 times [2022-11-25 18:29:46,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:29:46,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62121830] [2022-11-25 18:29:46,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:29:46,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:29:46,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:29:46,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:29:46,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:29:46,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62121830] [2022-11-25 18:29:46,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62121830] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:29:46,636 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:29:46,636 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-25 18:29:46,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958547964] [2022-11-25 18:29:46,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:29:46,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-25 18:29:46,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:29:46,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-25 18:29:46,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-25 18:29:46,638 INFO L87 Difference]: Start difference. First operand 322 states and 412 transitions. Second operand has 13 states, 13 states have (on average 6.461538461538462) internal successors, (84), 13 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:29:48,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:29:48,959 INFO L93 Difference]: Finished difference Result 1003 states and 1367 transitions. [2022-11-25 18:29:48,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-25 18:29:48,959 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.461538461538462) internal successors, (84), 13 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2022-11-25 18:29:48,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:29:48,960 INFO L225 Difference]: With dead ends: 1003 [2022-11-25 18:29:48,960 INFO L226 Difference]: Without dead ends: 864 [2022-11-25 18:29:48,961 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=158, Invalid=492, Unknown=0, NotChecked=0, Total=650 [2022-11-25 18:29:48,961 INFO L413 NwaCegarLoop]: 374 mSDtfsCounter, 1190 mSDsluCounter, 2556 mSDsCounter, 0 mSdLazyCounter, 546 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1190 SdHoareTripleChecker+Valid, 2930 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-25 18:29:48,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1190 Valid, 2930 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 546 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-25 18:29:48,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2022-11-25 18:29:49,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 311. [2022-11-25 18:29:49,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 307 states have (on average 1.296416938110749) internal successors, (398), 310 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:29:49,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 398 transitions. [2022-11-25 18:29:49,323 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 398 transitions. Word has length 84 [2022-11-25 18:29:49,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:29:49,323 INFO L495 AbstractCegarLoop]: Abstraction has 311 states and 398 transitions. [2022-11-25 18:29:49,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.461538461538462) internal successors, (84), 13 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:29:49,323 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 398 transitions. [2022-11-25 18:29:49,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-25 18:29:49,324 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:29:49,324 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:29:49,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-11-25 18:29:49,324 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:29:49,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:29:49,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1057356833, now seen corresponding path program 1 times [2022-11-25 18:29:49,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:29:49,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508184437] [2022-11-25 18:29:49,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:29:49,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:29:49,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:29:49,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:29:49,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:29:49,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508184437] [2022-11-25 18:29:49,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508184437] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:29:49,953 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:29:49,954 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-25 18:29:49,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649214176] [2022-11-25 18:29:49,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:29:49,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-25 18:29:49,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:29:49,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-25 18:29:49,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2022-11-25 18:29:49,955 INFO L87 Difference]: Start difference. First operand 311 states and 398 transitions. Second operand has 15 states, 15 states have (on average 5.6) internal successors, (84), 15 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:29:51,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:29:51,453 INFO L93 Difference]: Finished difference Result 643 states and 867 transitions. [2022-11-25 18:29:51,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-25 18:29:51,454 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.6) internal successors, (84), 15 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2022-11-25 18:29:51,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:29:51,454 INFO L225 Difference]: With dead ends: 643 [2022-11-25 18:29:51,454 INFO L226 Difference]: Without dead ends: 491 [2022-11-25 18:29:51,455 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=156, Invalid=444, Unknown=0, NotChecked=0, Total=600 [2022-11-25 18:29:51,455 INFO L413 NwaCegarLoop]: 342 mSDtfsCounter, 607 mSDsluCounter, 2306 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 607 SdHoareTripleChecker+Valid, 2648 SdHoareTripleChecker+Invalid, 491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 18:29:51,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [607 Valid, 2648 Invalid, 491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 486 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 18:29:51,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2022-11-25 18:29:51,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 287. [2022-11-25 18:29:51,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 284 states have (on average 1.2922535211267605) internal successors, (367), 286 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:29:51,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 367 transitions. [2022-11-25 18:29:51,717 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 367 transitions. Word has length 84 [2022-11-25 18:29:51,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:29:51,717 INFO L495 AbstractCegarLoop]: Abstraction has 287 states and 367 transitions. [2022-11-25 18:29:51,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.6) internal successors, (84), 15 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:29:51,717 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 367 transitions. [2022-11-25 18:29:51,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-25 18:29:51,717 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:29:51,718 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:29:51,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-11-25 18:29:51,718 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:29:51,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:29:51,719 INFO L85 PathProgramCache]: Analyzing trace with hash -1707932206, now seen corresponding path program 1 times [2022-11-25 18:29:51,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:29:51,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835958061] [2022-11-25 18:29:51,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:29:51,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:29:51,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:29:52,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:29:52,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:29:52,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835958061] [2022-11-25 18:29:52,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835958061] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:29:52,141 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:29:52,141 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-25 18:29:52,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875640448] [2022-11-25 18:29:52,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:29:52,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 18:29:52,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:29:52,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 18:29:52,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-25 18:29:52,143 INFO L87 Difference]: Start difference. First operand 287 states and 367 transitions. Second operand has 12 states, 12 states have (on average 7.0) internal successors, (84), 11 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:29:56,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:29:56,776 INFO L93 Difference]: Finished difference Result 1755 states and 2480 transitions. [2022-11-25 18:29:56,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-25 18:29:56,777 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.0) internal successors, (84), 11 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2022-11-25 18:29:56,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:29:56,779 INFO L225 Difference]: With dead ends: 1755 [2022-11-25 18:29:56,779 INFO L226 Difference]: Without dead ends: 1597 [2022-11-25 18:29:56,779 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-11-25 18:29:56,780 INFO L413 NwaCegarLoop]: 309 mSDtfsCounter, 3012 mSDsluCounter, 1253 mSDsCounter, 0 mSdLazyCounter, 1209 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3012 SdHoareTripleChecker+Valid, 1562 SdHoareTripleChecker+Invalid, 1264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 1209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-25 18:29:56,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3012 Valid, 1562 Invalid, 1264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 1209 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-25 18:29:56,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1597 states. [2022-11-25 18:29:57,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1597 to 295. [2022-11-25 18:29:57,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 292 states have (on average 1.2842465753424657) internal successors, (375), 294 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:29:57,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 375 transitions. [2022-11-25 18:29:57,061 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 375 transitions. Word has length 84 [2022-11-25 18:29:57,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:29:57,061 INFO L495 AbstractCegarLoop]: Abstraction has 295 states and 375 transitions. [2022-11-25 18:29:57,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.0) internal successors, (84), 11 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:29:57,062 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 375 transitions. [2022-11-25 18:29:57,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-11-25 18:29:57,062 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:29:57,062 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:29:57,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-11-25 18:29:57,063 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:29:57,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:29:57,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1658257545, now seen corresponding path program 1 times [2022-11-25 18:29:57,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:29:57,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177707163] [2022-11-25 18:29:57,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:29:57,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:29:57,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:29:57,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:29:57,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:29:57,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177707163] [2022-11-25 18:29:57,252 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177707163] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:29:57,252 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:29:57,252 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 18:29:57,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049819238] [2022-11-25 18:29:57,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:29:57,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 18:29:57,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:29:57,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 18:29:57,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-25 18:29:57,254 INFO L87 Difference]: Start difference. First operand 295 states and 375 transitions. Second operand has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:29:58,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:29:58,371 INFO L93 Difference]: Finished difference Result 480 states and 627 transitions. [2022-11-25 18:29:58,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-25 18:29:58,372 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2022-11-25 18:29:58,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:29:58,372 INFO L225 Difference]: With dead ends: 480 [2022-11-25 18:29:58,373 INFO L226 Difference]: Without dead ends: 473 [2022-11-25 18:29:58,373 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2022-11-25 18:29:58,374 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 959 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 959 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 18:29:58,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [959 Valid, 572 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 436 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 18:29:58,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2022-11-25 18:29:58,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 295. [2022-11-25 18:29:58,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 292 states have (on average 1.2808219178082192) internal successors, (374), 294 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:29:58,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 374 transitions. [2022-11-25 18:29:58,645 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 374 transitions. Word has length 85 [2022-11-25 18:29:58,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:29:58,645 INFO L495 AbstractCegarLoop]: Abstraction has 295 states and 374 transitions. [2022-11-25 18:29:58,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:29:58,646 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 374 transitions. [2022-11-25 18:29:58,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-11-25 18:29:58,646 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:29:58,646 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:29:58,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-11-25 18:29:58,647 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:29:58,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:29:58,647 INFO L85 PathProgramCache]: Analyzing trace with hash -1176082131, now seen corresponding path program 1 times [2022-11-25 18:29:58,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:29:58,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913380013] [2022-11-25 18:29:58,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:29:58,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:29:58,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:29:58,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:29:58,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:29:58,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913380013] [2022-11-25 18:29:58,854 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913380013] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:29:58,855 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:29:58,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 18:29:58,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958047859] [2022-11-25 18:29:58,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:29:58,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 18:29:58,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:29:58,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 18:29:58,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-25 18:29:58,856 INFO L87 Difference]: Start difference. First operand 295 states and 374 transitions. Second operand has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:30:00,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:30:00,134 INFO L93 Difference]: Finished difference Result 641 states and 857 transitions. [2022-11-25 18:30:00,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 18:30:00,135 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2022-11-25 18:30:00,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:30:00,135 INFO L225 Difference]: With dead ends: 641 [2022-11-25 18:30:00,135 INFO L226 Difference]: Without dead ends: 483 [2022-11-25 18:30:00,136 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=113, Invalid=267, Unknown=0, NotChecked=0, Total=380 [2022-11-25 18:30:00,136 INFO L413 NwaCegarLoop]: 219 mSDtfsCounter, 832 mSDsluCounter, 538 mSDsCounter, 0 mSdLazyCounter, 565 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 832 SdHoareTripleChecker+Valid, 757 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 565 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 18:30:00,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [832 Valid, 757 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 565 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 18:30:00,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2022-11-25 18:30:00,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 287. [2022-11-25 18:30:00,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 284 states have (on average 1.2816901408450705) internal successors, (364), 286 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:30:00,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 364 transitions. [2022-11-25 18:30:00,412 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 364 transitions. Word has length 85 [2022-11-25 18:30:00,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:30:00,412 INFO L495 AbstractCegarLoop]: Abstraction has 287 states and 364 transitions. [2022-11-25 18:30:00,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:30:00,413 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 364 transitions. [2022-11-25 18:30:00,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-11-25 18:30:00,413 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:30:00,413 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:30:00,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-11-25 18:30:00,414 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:30:00,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:30:00,414 INFO L85 PathProgramCache]: Analyzing trace with hash 1161243347, now seen corresponding path program 1 times [2022-11-25 18:30:00,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:30:00,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435282572] [2022-11-25 18:30:00,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:30:00,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:30:00,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:30:02,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:30:02,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:30:02,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435282572] [2022-11-25 18:30:02,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435282572] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:30:02,030 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:30:02,030 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-11-25 18:30:02,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299397312] [2022-11-25 18:30:02,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:30:02,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-11-25 18:30:02,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:30:02,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-11-25 18:30:02,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=668, Unknown=0, NotChecked=0, Total=756 [2022-11-25 18:30:02,032 INFO L87 Difference]: Start difference. First operand 287 states and 364 transitions. Second operand has 28 states, 28 states have (on average 3.0714285714285716) internal successors, (86), 28 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:30:07,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:30:07,113 INFO L93 Difference]: Finished difference Result 1033 states and 1424 transitions. [2022-11-25 18:30:07,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-11-25 18:30:07,114 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 3.0714285714285716) internal successors, (86), 28 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2022-11-25 18:30:07,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:30:07,115 INFO L225 Difference]: With dead ends: 1033 [2022-11-25 18:30:07,115 INFO L226 Difference]: Without dead ends: 1027 [2022-11-25 18:30:07,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 484 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=436, Invalid=2216, Unknown=0, NotChecked=0, Total=2652 [2022-11-25 18:30:07,117 INFO L413 NwaCegarLoop]: 296 mSDtfsCounter, 1382 mSDsluCounter, 4373 mSDsCounter, 0 mSdLazyCounter, 2282 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1382 SdHoareTripleChecker+Valid, 4669 SdHoareTripleChecker+Invalid, 2296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 2282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-25 18:30:07,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1382 Valid, 4669 Invalid, 2296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 2282 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-25 18:30:07,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1027 states. [2022-11-25 18:30:07,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1027 to 303. [2022-11-25 18:30:07,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 300 states have (on average 1.28) internal successors, (384), 302 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:30:07,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 384 transitions. [2022-11-25 18:30:07,471 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 384 transitions. Word has length 86 [2022-11-25 18:30:07,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:30:07,472 INFO L495 AbstractCegarLoop]: Abstraction has 303 states and 384 transitions. [2022-11-25 18:30:07,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 3.0714285714285716) internal successors, (86), 28 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:30:07,472 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 384 transitions. [2022-11-25 18:30:07,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-11-25 18:30:07,472 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:30:07,472 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:30:07,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-11-25 18:30:07,473 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:30:07,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:30:07,473 INFO L85 PathProgramCache]: Analyzing trace with hash 91928287, now seen corresponding path program 1 times [2022-11-25 18:30:07,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:30:07,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232611080] [2022-11-25 18:30:07,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:30:07,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:30:07,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:30:07,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:30:07,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:30:07,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232611080] [2022-11-25 18:30:07,957 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232611080] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:30:07,958 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:30:07,958 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-25 18:30:07,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364676200] [2022-11-25 18:30:07,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:30:07,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 18:30:07,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:30:07,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 18:30:07,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-11-25 18:30:07,959 INFO L87 Difference]: Start difference. First operand 303 states and 384 transitions. Second operand has 12 states, 12 states have (on average 7.25) internal successors, (87), 12 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:30:09,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:30:09,889 INFO L93 Difference]: Finished difference Result 755 states and 1028 transitions. [2022-11-25 18:30:09,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 18:30:09,889 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.25) internal successors, (87), 12 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2022-11-25 18:30:09,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:30:09,890 INFO L225 Difference]: With dead ends: 755 [2022-11-25 18:30:09,890 INFO L226 Difference]: Without dead ends: 749 [2022-11-25 18:30:09,891 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=129, Invalid=377, Unknown=0, NotChecked=0, Total=506 [2022-11-25 18:30:09,891 INFO L413 NwaCegarLoop]: 482 mSDtfsCounter, 1140 mSDsluCounter, 2110 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1140 SdHoareTripleChecker+Valid, 2592 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-25 18:30:09,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1140 Valid, 2592 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 523 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-25 18:30:09,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 749 states. [2022-11-25 18:30:10,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 749 to 281. [2022-11-25 18:30:10,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 279 states have (on average 1.2795698924731183) internal successors, (357), 280 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:30:10,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 357 transitions. [2022-11-25 18:30:10,214 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 357 transitions. Word has length 87 [2022-11-25 18:30:10,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:30:10,214 INFO L495 AbstractCegarLoop]: Abstraction has 281 states and 357 transitions. [2022-11-25 18:30:10,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.25) internal successors, (87), 12 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:30:10,214 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 357 transitions. [2022-11-25 18:30:10,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-11-25 18:30:10,215 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:30:10,215 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:30:10,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-11-25 18:30:10,215 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:30:10,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:30:10,216 INFO L85 PathProgramCache]: Analyzing trace with hash 1263441831, now seen corresponding path program 1 times [2022-11-25 18:30:10,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:30:10,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141288399] [2022-11-25 18:30:10,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:30:10,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:30:10,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:30:12,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:30:12,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:30:12,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141288399] [2022-11-25 18:30:12,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141288399] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:30:12,411 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:30:12,411 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-11-25 18:30:12,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161956021] [2022-11-25 18:30:12,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:30:12,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-11-25 18:30:12,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:30:12,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-11-25 18:30:12,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2022-11-25 18:30:12,413 INFO L87 Difference]: Start difference. First operand 281 states and 357 transitions. Second operand has 28 states, 28 states have (on average 3.107142857142857) internal successors, (87), 28 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:30:17,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:30:17,800 INFO L93 Difference]: Finished difference Result 345 states and 420 transitions. [2022-11-25 18:30:17,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-25 18:30:17,801 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 3.107142857142857) internal successors, (87), 28 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2022-11-25 18:30:17,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:30:17,802 INFO L225 Difference]: With dead ends: 345 [2022-11-25 18:30:17,802 INFO L226 Difference]: Without dead ends: 337 [2022-11-25 18:30:17,802 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 444 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=524, Invalid=2128, Unknown=0, NotChecked=0, Total=2652 [2022-11-25 18:30:17,803 INFO L413 NwaCegarLoop]: 208 mSDtfsCounter, 583 mSDsluCounter, 3154 mSDsCounter, 0 mSdLazyCounter, 1880 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 583 SdHoareTripleChecker+Valid, 3362 SdHoareTripleChecker+Invalid, 1887 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1880 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-25 18:30:17,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [583 Valid, 3362 Invalid, 1887 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1880 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-25 18:30:17,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2022-11-25 18:30:18,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 291. [2022-11-25 18:30:18,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 289 states have (on average 1.273356401384083) internal successors, (368), 290 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:30:18,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 368 transitions. [2022-11-25 18:30:18,100 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 368 transitions. Word has length 87 [2022-11-25 18:30:18,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:30:18,100 INFO L495 AbstractCegarLoop]: Abstraction has 291 states and 368 transitions. [2022-11-25 18:30:18,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 3.107142857142857) internal successors, (87), 28 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:30:18,100 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 368 transitions. [2022-11-25 18:30:18,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-11-25 18:30:18,101 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:30:18,101 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:30:18,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-11-25 18:30:18,101 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:30:18,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:30:18,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1503610841, now seen corresponding path program 1 times [2022-11-25 18:30:18,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:30:18,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276870250] [2022-11-25 18:30:18,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:30:18,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:30:18,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:30:18,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:30:18,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:30:18,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276870250] [2022-11-25 18:30:18,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276870250] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:30:18,484 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:30:18,484 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-25 18:30:18,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464715986] [2022-11-25 18:30:18,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:30:18,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 18:30:18,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:30:18,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 18:30:18,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-11-25 18:30:18,486 INFO L87 Difference]: Start difference. First operand 291 states and 368 transitions. Second operand has 10 states, 10 states have (on average 8.8) internal successors, (88), 10 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:30:19,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:30:19,886 INFO L93 Difference]: Finished difference Result 689 states and 952 transitions. [2022-11-25 18:30:19,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 18:30:19,887 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.8) internal successors, (88), 10 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2022-11-25 18:30:19,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:30:19,888 INFO L225 Difference]: With dead ends: 689 [2022-11-25 18:30:19,888 INFO L226 Difference]: Without dead ends: 649 [2022-11-25 18:30:19,888 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=85, Invalid=187, Unknown=0, NotChecked=0, Total=272 [2022-11-25 18:30:19,889 INFO L413 NwaCegarLoop]: 283 mSDtfsCounter, 1044 mSDsluCounter, 644 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1044 SdHoareTripleChecker+Valid, 927 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 18:30:19,889 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1044 Valid, 927 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 18:30:19,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 649 states. [2022-11-25 18:30:20,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 649 to 251. [2022-11-25 18:30:20,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 250 states have (on average 1.296) internal successors, (324), 250 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:30:20,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 324 transitions. [2022-11-25 18:30:20,158 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 324 transitions. Word has length 88 [2022-11-25 18:30:20,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:30:20,158 INFO L495 AbstractCegarLoop]: Abstraction has 251 states and 324 transitions. [2022-11-25 18:30:20,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.8) internal successors, (88), 10 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:30:20,158 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 324 transitions. [2022-11-25 18:30:20,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-25 18:30:20,158 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:30:20,159 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:30:20,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-11-25 18:30:20,159 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:30:20,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:30:20,159 INFO L85 PathProgramCache]: Analyzing trace with hash -2132814901, now seen corresponding path program 1 times [2022-11-25 18:30:20,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:30:20,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435086739] [2022-11-25 18:30:20,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:30:20,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:30:20,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:30:20,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:30:20,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:30:20,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435086739] [2022-11-25 18:30:20,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435086739] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:30:20,267 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:30:20,267 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 18:30:20,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613855859] [2022-11-25 18:30:20,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:30:20,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 18:30:20,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:30:20,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 18:30:20,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 18:30:20,268 INFO L87 Difference]: Start difference. First operand 251 states and 324 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) [2022-11-25 18:30:22,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:30:22,880 INFO L93 Difference]: Finished difference Result 1531 states and 2224 transitions. [2022-11-25 18:30:22,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 18:30:22,881 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 [2022-11-25 18:30:22,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:30:22,882 INFO L225 Difference]: With dead ends: 1531 [2022-11-25 18:30:22,883 INFO L226 Difference]: Without dead ends: 1403 [2022-11-25 18:30:22,883 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-11-25 18:30:22,883 INFO L413 NwaCegarLoop]: 204 mSDtfsCounter, 1279 mSDsluCounter, 1976 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1279 SdHoareTripleChecker+Valid, 2180 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 18:30:22,883 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1279 Valid, 2180 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 18:30:22,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1403 states. [2022-11-25 18:30:23,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1403 to 377. [2022-11-25 18:30:23,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 376 states have (on average 1.3537234042553192) internal successors, (509), 376 states have internal predecessors, (509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:30:23,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 509 transitions. [2022-11-25 18:30:23,395 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 509 transitions. Word has length 114 [2022-11-25 18:30:23,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:30:23,395 INFO L495 AbstractCegarLoop]: Abstraction has 377 states and 509 transitions. [2022-11-25 18:30:23,395 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) [2022-11-25 18:30:23,395 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 509 transitions. [2022-11-25 18:30:23,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-25 18:30:23,396 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:30:23,396 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:30:23,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-11-25 18:30:23,396 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:30:23,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:30:23,397 INFO L85 PathProgramCache]: Analyzing trace with hash -1778175941, now seen corresponding path program 1 times [2022-11-25 18:30:23,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:30:23,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657633557] [2022-11-25 18:30:23,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:30:23,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:30:23,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:30:23,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:30:23,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:30:23,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657633557] [2022-11-25 18:30:23,512 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657633557] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:30:23,512 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:30:23,512 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 18:30:23,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673635263] [2022-11-25 18:30:23,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:30:23,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 18:30:23,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:30:23,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 18:30:23,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-25 18:30:23,514 INFO L87 Difference]: Start difference. First operand 377 states and 509 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) [2022-11-25 18:30:26,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:30:26,762 INFO L93 Difference]: Finished difference Result 1775 states and 2570 transitions. [2022-11-25 18:30:26,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 18:30:26,763 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 [2022-11-25 18:30:26,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:30:26,764 INFO L225 Difference]: With dead ends: 1775 [2022-11-25 18:30:26,764 INFO L226 Difference]: Without dead ends: 1521 [2022-11-25 18:30:26,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-11-25 18:30:26,765 INFO L413 NwaCegarLoop]: 287 mSDtfsCounter, 1043 mSDsluCounter, 925 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1043 SdHoareTripleChecker+Valid, 1212 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 18:30:26,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1043 Valid, 1212 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 18:30:26,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1521 states. [2022-11-25 18:30:27,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1521 to 629. [2022-11-25 18:30:27,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 629 states, 628 states have (on average 1.4028662420382165) internal successors, (881), 628 states have internal predecessors, (881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:30:27,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 881 transitions. [2022-11-25 18:30:27,748 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 881 transitions. Word has length 116 [2022-11-25 18:30:27,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:30:27,749 INFO L495 AbstractCegarLoop]: Abstraction has 629 states and 881 transitions. [2022-11-25 18:30:27,749 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) [2022-11-25 18:30:27,749 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 881 transitions. [2022-11-25 18:30:27,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-25 18:30:27,750 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:30:27,750 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:30:27,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-11-25 18:30:27,750 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:30:27,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:30:27,750 INFO L85 PathProgramCache]: Analyzing trace with hash 1881237749, now seen corresponding path program 1 times [2022-11-25 18:30:27,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:30:27,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204959335] [2022-11-25 18:30:27,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:30:27,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:30:27,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:30:27,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:30:27,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:30:27,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204959335] [2022-11-25 18:30:27,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204959335] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:30:27,889 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:30:27,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 18:30:27,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886248454] [2022-11-25 18:30:27,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:30:27,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 18:30:27,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:30:27,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 18:30:27,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-25 18:30:27,891 INFO L87 Difference]: Start difference. First operand 629 states and 881 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) [2022-11-25 18:30:31,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:30:31,660 INFO L93 Difference]: Finished difference Result 2027 states and 2942 transitions. [2022-11-25 18:30:31,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 18:30:31,661 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 [2022-11-25 18:30:31,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:30:31,662 INFO L225 Difference]: With dead ends: 2027 [2022-11-25 18:30:31,662 INFO L226 Difference]: Without dead ends: 1773 [2022-11-25 18:30:31,663 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-11-25 18:30:31,663 INFO L413 NwaCegarLoop]: 281 mSDtfsCounter, 1043 mSDsluCounter, 858 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1043 SdHoareTripleChecker+Valid, 1139 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 18:30:31,663 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1043 Valid, 1139 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 18:30:31,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1773 states. [2022-11-25 18:30:33,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1773 to 1007. [2022-11-25 18:30:33,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1007 states, 1006 states have (on average 1.4294234592445327) internal successors, (1438), 1006 states have internal predecessors, (1438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:30:33,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1007 states to 1007 states and 1438 transitions. [2022-11-25 18:30:33,559 INFO L78 Accepts]: Start accepts. Automaton has 1007 states and 1438 transitions. Word has length 116 [2022-11-25 18:30:33,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:30:33,559 INFO L495 AbstractCegarLoop]: Abstraction has 1007 states and 1438 transitions. [2022-11-25 18:30:33,559 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) [2022-11-25 18:30:33,560 INFO L276 IsEmpty]: Start isEmpty. Operand 1007 states and 1438 transitions. [2022-11-25 18:30:33,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-25 18:30:33,560 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:30:33,560 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:30:33,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-11-25 18:30:33,561 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:30:33,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:30:33,561 INFO L85 PathProgramCache]: Analyzing trace with hash -455453719, now seen corresponding path program 1 times [2022-11-25 18:30:33,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:30:33,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411454268] [2022-11-25 18:30:33,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:30:33,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:30:33,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:30:33,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:30:33,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:30:33,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411454268] [2022-11-25 18:30:33,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411454268] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:30:33,665 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:30:33,665 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 18:30:33,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921395312] [2022-11-25 18:30:33,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:30:33,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 18:30:33,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:30:33,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 18:30:33,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-25 18:30:33,667 INFO L87 Difference]: Start difference. First operand 1007 states and 1438 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) [2022-11-25 18:30:37,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:30:37,722 INFO L93 Difference]: Finished difference Result 2279 states and 3314 transitions. [2022-11-25 18:30:37,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 18:30:37,723 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 [2022-11-25 18:30:37,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:30:37,725 INFO L225 Difference]: With dead ends: 2279 [2022-11-25 18:30:37,725 INFO L226 Difference]: Without dead ends: 2025 [2022-11-25 18:30:37,726 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-11-25 18:30:37,726 INFO L413 NwaCegarLoop]: 275 mSDtfsCounter, 1120 mSDsluCounter, 889 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1120 SdHoareTripleChecker+Valid, 1164 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 18:30:37,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1120 Valid, 1164 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 18:30:37,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2025 states. [2022-11-25 18:30:40,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2025 to 1259. [2022-11-25 18:30:40,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1259 states, 1258 states have (on average 1.43879173290938) internal successors, (1810), 1258 states have internal predecessors, (1810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:30:40,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1259 states to 1259 states and 1810 transitions. [2022-11-25 18:30:40,330 INFO L78 Accepts]: Start accepts. Automaton has 1259 states and 1810 transitions. Word has length 116 [2022-11-25 18:30:40,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:30:40,331 INFO L495 AbstractCegarLoop]: Abstraction has 1259 states and 1810 transitions. [2022-11-25 18:30:40,331 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) [2022-11-25 18:30:40,331 INFO L276 IsEmpty]: Start isEmpty. Operand 1259 states and 1810 transitions. [2022-11-25 18:30:40,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-25 18:30:40,332 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:30:40,333 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:30:40,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-11-25 18:30:40,333 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:30:40,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:30:40,334 INFO L85 PathProgramCache]: Analyzing trace with hash 2067568748, now seen corresponding path program 1 times [2022-11-25 18:30:40,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:30:40,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62296192] [2022-11-25 18:30:40,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:30:40,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:30:40,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:30:40,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:30:40,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:30:40,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62296192] [2022-11-25 18:30:40,596 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62296192] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:30:40,596 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:30:40,596 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 18:30:40,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865970803] [2022-11-25 18:30:40,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:30:40,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 18:30:40,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:30:40,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 18:30:40,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-25 18:30:40,598 INFO L87 Difference]: Start difference. First operand 1259 states and 1810 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) [2022-11-25 18:30:43,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:30:43,392 INFO L93 Difference]: Finished difference Result 2397 states and 3487 transitions. [2022-11-25 18:30:43,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 18:30:43,392 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 [2022-11-25 18:30:43,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:30:43,394 INFO L225 Difference]: With dead ends: 2397 [2022-11-25 18:30:43,394 INFO L226 Difference]: Without dead ends: 1261 [2022-11-25 18:30:43,395 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 [2022-11-25 18:30:43,396 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 399 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 399 SdHoareTripleChecker+Valid, 552 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 18:30:43,396 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [399 Valid, 552 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 18:30:43,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1261 states. [2022-11-25 18:30:45,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1261 to 1259. [2022-11-25 18:30:45,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1259 states, 1258 states have (on average 1.4308426073131955) internal successors, (1800), 1258 states have internal predecessors, (1800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:30:45,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1259 states to 1259 states and 1800 transitions. [2022-11-25 18:30:45,661 INFO L78 Accepts]: Start accepts. Automaton has 1259 states and 1800 transitions. Word has length 116 [2022-11-25 18:30:45,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:30:45,661 INFO L495 AbstractCegarLoop]: Abstraction has 1259 states and 1800 transitions. [2022-11-25 18:30:45,661 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) [2022-11-25 18:30:45,661 INFO L276 IsEmpty]: Start isEmpty. Operand 1259 states and 1800 transitions. [2022-11-25 18:30:45,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-25 18:30:45,662 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:30:45,662 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:30:45,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-11-25 18:30:45,663 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:30:45,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:30:45,663 INFO L85 PathProgramCache]: Analyzing trace with hash 1298275755, now seen corresponding path program 1 times [2022-11-25 18:30:45,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:30:45,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877339099] [2022-11-25 18:30:45,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:30:45,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:30:45,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:30:45,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:30:45,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:30:45,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877339099] [2022-11-25 18:30:45,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877339099] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:30:45,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:30:45,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 18:30:45,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885912027] [2022-11-25 18:30:45,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:30:45,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:30:45,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:30:45,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:30:45,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:30:45,721 INFO L87 Difference]: Start difference. First operand 1259 states and 1800 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:30:50,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:30:50,059 INFO L93 Difference]: Finished difference Result 3415 states and 4938 transitions. [2022-11-25 18:30:50,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:30:50,059 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2022-11-25 18:30:50,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:30:50,061 INFO L225 Difference]: With dead ends: 3415 [2022-11-25 18:30:50,062 INFO L226 Difference]: Without dead ends: 2279 [2022-11-25 18:30:50,063 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:30:50,063 INFO L413 NwaCegarLoop]: 273 mSDtfsCounter, 83 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 18:30:50,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 452 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 18:30:50,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2279 states. [2022-11-25 18:30:54,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2279 to 2277. [2022-11-25 18:30:54,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2277 states, 2276 states have (on average 1.421353251318102) internal successors, (3235), 2276 states have internal predecessors, (3235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:30:54,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2277 states to 2277 states and 3235 transitions. [2022-11-25 18:30:54,626 INFO L78 Accepts]: Start accepts. Automaton has 2277 states and 3235 transitions. Word has length 116 [2022-11-25 18:30:54,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:30:54,627 INFO L495 AbstractCegarLoop]: Abstraction has 2277 states and 3235 transitions. [2022-11-25 18:30:54,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:30:54,627 INFO L276 IsEmpty]: Start isEmpty. Operand 2277 states and 3235 transitions. [2022-11-25 18:30:54,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-25 18:30:54,628 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:30:54,629 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:30:54,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-11-25 18:30:54,629 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:30:54,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:30:54,630 INFO L85 PathProgramCache]: Analyzing trace with hash -1451686365, now seen corresponding path program 1 times [2022-11-25 18:30:54,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:30:54,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039819607] [2022-11-25 18:30:54,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:30:54,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:30:54,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:30:54,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:30:54,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:30:54,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039819607] [2022-11-25 18:30:54,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039819607] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:30:54,777 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:30:54,777 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 18:30:54,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115442529] [2022-11-25 18:30:54,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:30:54,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 18:30:54,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:30:54,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 18:30:54,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-25 18:30:54,779 INFO L87 Difference]: Start difference. First operand 2277 states and 3235 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) [2022-11-25 18:31:04,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:31:04,005 INFO L93 Difference]: Finished difference Result 4679 states and 6701 transitions. [2022-11-25 18:31:04,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 18:31:04,006 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 [2022-11-25 18:31:04,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:31:04,009 INFO L225 Difference]: With dead ends: 4679 [2022-11-25 18:31:04,009 INFO L226 Difference]: Without dead ends: 4199 [2022-11-25 18:31:04,010 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-11-25 18:31:04,010 INFO L413 NwaCegarLoop]: 282 mSDtfsCounter, 1034 mSDsluCounter, 922 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1034 SdHoareTripleChecker+Valid, 1204 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 18:31:04,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1034 Valid, 1204 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 18:31:04,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4199 states. [2022-11-25 18:31:10,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4199 to 2755. [2022-11-25 18:31:10,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2755 states, 2754 states have (on average 1.4244734931009442) internal successors, (3923), 2754 states have internal predecessors, (3923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:31:10,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2755 states to 2755 states and 3923 transitions. [2022-11-25 18:31:10,218 INFO L78 Accepts]: Start accepts. Automaton has 2755 states and 3923 transitions. Word has length 116 [2022-11-25 18:31:10,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:31:10,218 INFO L495 AbstractCegarLoop]: Abstraction has 2755 states and 3923 transitions. [2022-11-25 18:31:10,218 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) [2022-11-25 18:31:10,218 INFO L276 IsEmpty]: Start isEmpty. Operand 2755 states and 3923 transitions. [2022-11-25 18:31:10,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-25 18:31:10,220 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:31:10,220 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:31:10,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-11-25 18:31:10,220 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:31:10,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:31:10,221 INFO L85 PathProgramCache]: Analyzing trace with hash -871511505, now seen corresponding path program 1 times [2022-11-25 18:31:10,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:31:10,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919152815] [2022-11-25 18:31:10,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:31:10,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:31:10,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:31:10,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:31:10,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:31:10,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919152815] [2022-11-25 18:31:10,368 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919152815] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:31:10,368 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:31:10,368 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 18:31:10,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891637904] [2022-11-25 18:31:10,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:31:10,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 18:31:10,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:31:10,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 18:31:10,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-25 18:31:10,370 INFO L87 Difference]: Start difference. First operand 2755 states and 3923 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) [2022-11-25 18:31:20,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:31:20,662 INFO L93 Difference]: Finished difference Result 5157 states and 7389 transitions. [2022-11-25 18:31:20,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 18:31:20,663 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 [2022-11-25 18:31:20,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:31:20,668 INFO L225 Difference]: With dead ends: 5157 [2022-11-25 18:31:20,668 INFO L226 Difference]: Without dead ends: 4677 [2022-11-25 18:31:20,669 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-11-25 18:31:20,669 INFO L413 NwaCegarLoop]: 277 mSDtfsCounter, 971 mSDsluCounter, 1076 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 971 SdHoareTripleChecker+Valid, 1353 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 18:31:20,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [971 Valid, 1353 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 18:31:20,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4677 states. [2022-11-25 18:31:27,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4677 to 3233. [2022-11-25 18:31:27,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3233 states, 3232 states have (on average 1.4266707920792079) internal successors, (4611), 3232 states have internal predecessors, (4611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:31:27,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3233 states to 3233 states and 4611 transitions. [2022-11-25 18:31:27,313 INFO L78 Accepts]: Start accepts. Automaton has 3233 states and 4611 transitions. Word has length 116 [2022-11-25 18:31:27,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:31:27,313 INFO L495 AbstractCegarLoop]: Abstraction has 3233 states and 4611 transitions. [2022-11-25 18:31:27,313 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) [2022-11-25 18:31:27,313 INFO L276 IsEmpty]: Start isEmpty. Operand 3233 states and 4611 transitions. [2022-11-25 18:31:27,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-11-25 18:31:27,314 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:31:27,315 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:31:27,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-11-25 18:31:27,315 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:31:27,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:31:27,315 INFO L85 PathProgramCache]: Analyzing trace with hash -389045736, now seen corresponding path program 1 times [2022-11-25 18:31:27,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:31:27,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703235890] [2022-11-25 18:31:27,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:31:27,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:31:27,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:31:27,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:31:27,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:31:27,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703235890] [2022-11-25 18:31:27,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703235890] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:31:27,430 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:31:27,430 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 18:31:27,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175698105] [2022-11-25 18:31:27,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:31:27,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:31:27,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:31:27,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:31:27,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:31:27,432 INFO L87 Difference]: Start difference. First operand 3233 states and 4611 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 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) [2022-11-25 18:31:37,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:31:37,594 INFO L93 Difference]: Finished difference Result 8179 states and 11691 transitions. [2022-11-25 18:31:37,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:31:37,594 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 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 [2022-11-25 18:31:37,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:31:37,599 INFO L225 Difference]: With dead ends: 8179 [2022-11-25 18:31:37,599 INFO L226 Difference]: Without dead ends: 5069 [2022-11-25 18:31:37,602 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:31:37,602 INFO L413 NwaCegarLoop]: 272 mSDtfsCounter, 96 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 18:31:37,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 420 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 18:31:37,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5069 states. [2022-11-25 18:31:47,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5069 to 4859. [2022-11-25 18:31:47,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4859 states, 4858 states have (on average 1.4151914368052696) internal successors, (6875), 4858 states have internal predecessors, (6875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:31:47,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4859 states to 4859 states and 6875 transitions. [2022-11-25 18:31:47,737 INFO L78 Accepts]: Start accepts. Automaton has 4859 states and 6875 transitions. Word has length 117 [2022-11-25 18:31:47,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:31:47,737 INFO L495 AbstractCegarLoop]: Abstraction has 4859 states and 6875 transitions. [2022-11-25 18:31:47,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 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) [2022-11-25 18:31:47,738 INFO L276 IsEmpty]: Start isEmpty. Operand 4859 states and 6875 transitions. [2022-11-25 18:31:47,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-11-25 18:31:47,739 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:31:47,739 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:31:47,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-11-25 18:31:47,739 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:31:47,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:31:47,740 INFO L85 PathProgramCache]: Analyzing trace with hash 966003247, now seen corresponding path program 1 times [2022-11-25 18:31:47,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:31:47,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085736785] [2022-11-25 18:31:47,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:31:47,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:31:47,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:31:47,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:31:47,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:31:47,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085736785] [2022-11-25 18:31:47,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085736785] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:31:47,830 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:31:47,830 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 18:31:47,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364777463] [2022-11-25 18:31:47,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:31:47,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:31:47,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:31:47,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:31:47,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:31:47,831 INFO L87 Difference]: Start difference. First operand 4859 states and 6875 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:32:06,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:32:06,824 INFO L93 Difference]: Finished difference Result 14019 states and 19811 transitions. [2022-11-25 18:32:06,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:32:06,825 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2022-11-25 18:32:06,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:32:06,835 INFO L225 Difference]: With dead ends: 14019 [2022-11-25 18:32:06,835 INFO L226 Difference]: Without dead ends: 9283 [2022-11-25 18:32:06,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:32:06,839 INFO L413 NwaCegarLoop]: 265 mSDtfsCounter, 89 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 18:32:06,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 420 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 18:32:06,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9283 states. [2022-11-25 18:32:26,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9283 to 8969. [2022-11-25 18:32:26,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8969 states, 8968 states have (on average 1.405107047279215) internal successors, (12601), 8968 states have internal predecessors, (12601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:32:26,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8969 states to 8969 states and 12601 transitions. [2022-11-25 18:32:26,953 INFO L78 Accepts]: Start accepts. Automaton has 8969 states and 12601 transitions. Word has length 118 [2022-11-25 18:32:26,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:32:26,953 INFO L495 AbstractCegarLoop]: Abstraction has 8969 states and 12601 transitions. [2022-11-25 18:32:26,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:32:26,953 INFO L276 IsEmpty]: Start isEmpty. Operand 8969 states and 12601 transitions. [2022-11-25 18:32:26,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-11-25 18:32:26,954 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:32:26,954 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:32:26,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-11-25 18:32:26,954 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:32:26,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:32:26,955 INFO L85 PathProgramCache]: Analyzing trace with hash -1314946245, now seen corresponding path program 1 times [2022-11-25 18:32:26,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:32:26,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071032134] [2022-11-25 18:32:26,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:32:26,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:32:26,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:32:27,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:32:27,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:32:27,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071032134] [2022-11-25 18:32:27,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071032134] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:32:27,074 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:32:27,075 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 18:32:27,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286516740] [2022-11-25 18:32:27,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:32:27,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:32:27,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:32:27,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:32:27,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:32:27,076 INFO L87 Difference]: Start difference. First operand 8969 states and 12601 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:33:04,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:33:04,710 INFO L93 Difference]: Finished difference Result 26037 states and 36443 transitions. [2022-11-25 18:33:04,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:33:04,710 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2022-11-25 18:33:04,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:33:04,729 INFO L225 Difference]: With dead ends: 26037 [2022-11-25 18:33:04,729 INFO L226 Difference]: Without dead ends: 17191 [2022-11-25 18:33:04,736 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:33:04,736 INFO L413 NwaCegarLoop]: 258 mSDtfsCounter, 82 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 18:33:04,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 420 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 18:33:04,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17191 states. [2022-11-25 18:33:38,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17191 to 16565. [2022-11-25 18:33:38,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16565 states, 16564 states have (on average 1.3909079932383481) internal successors, (23039), 16564 states have internal predecessors, (23039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:33:38,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16565 states to 16565 states and 23039 transitions. [2022-11-25 18:33:38,831 INFO L78 Accepts]: Start accepts. Automaton has 16565 states and 23039 transitions. Word has length 119 [2022-11-25 18:33:38,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:33:38,831 INFO L495 AbstractCegarLoop]: Abstraction has 16565 states and 23039 transitions. [2022-11-25 18:33:38,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:33:38,831 INFO L276 IsEmpty]: Start isEmpty. Operand 16565 states and 23039 transitions. [2022-11-25 18:33:38,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-11-25 18:33:38,832 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:33:38,832 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:33:38,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-11-25 18:33:38,833 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:33:38,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:33:38,833 INFO L85 PathProgramCache]: Analyzing trace with hash -590316034, now seen corresponding path program 1 times [2022-11-25 18:33:38,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:33:38,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812861224] [2022-11-25 18:33:38,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:33:38,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:33:38,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:33:38,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:33:38,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:33:38,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812861224] [2022-11-25 18:33:38,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812861224] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:33:38,945 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:33:38,945 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 18:33:38,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359269814] [2022-11-25 18:33:38,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:33:38,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:33:38,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:33:38,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:33:38,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:33:38,947 INFO L87 Difference]: Start difference. First operand 16565 states and 23039 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:34:46,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:34:46,082 INFO L93 Difference]: Finished difference Result 48201 states and 66665 transitions. [2022-11-25 18:34:46,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:34:46,082 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2022-11-25 18:34:46,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:34:46,121 INFO L225 Difference]: With dead ends: 48201 [2022-11-25 18:34:46,121 INFO L226 Difference]: Without dead ends: 31759 [2022-11-25 18:34:46,133 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:34:46,134 INFO L413 NwaCegarLoop]: 250 mSDtfsCounter, 75 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 18:34:46,134 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 419 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 18:34:46,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31759 states. [2022-11-25 18:35:50,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31759 to 30509. [2022-11-25 18:35:50,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30509 states, 30508 states have (on average 1.3729841353087715) internal successors, (41887), 30508 states have internal predecessors, (41887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:35:50,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30509 states to 30509 states and 41887 transitions. [2022-11-25 18:35:50,414 INFO L78 Accepts]: Start accepts. Automaton has 30509 states and 41887 transitions. Word has length 120 [2022-11-25 18:35:50,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:35:50,415 INFO L495 AbstractCegarLoop]: Abstraction has 30509 states and 41887 transitions. [2022-11-25 18:35:50,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:35:50,415 INFO L276 IsEmpty]: Start isEmpty. Operand 30509 states and 41887 transitions. [2022-11-25 18:35:50,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-11-25 18:35:50,416 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:35:50,416 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:35:50,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-11-25 18:35:50,416 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:35:50,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:35:50,417 INFO L85 PathProgramCache]: Analyzing trace with hash -1670009354, now seen corresponding path program 1 times [2022-11-25 18:35:50,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:35:50,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416708964] [2022-11-25 18:35:50,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:35:50,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:35:50,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:35:50,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:35:50,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:35:50,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416708964] [2022-11-25 18:35:50,493 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416708964] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:35:50,494 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:35:50,494 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 18:35:50,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570244264] [2022-11-25 18:35:50,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:35:50,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:35:50,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:35:50,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:35:50,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:35:50,495 INFO L87 Difference]: Start difference. First operand 30509 states and 41887 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:37:56,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:37:56,981 INFO L93 Difference]: Finished difference Result 88785 states and 121025 transitions. [2022-11-25 18:37:56,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:37:56,981 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-11-25 18:37:56,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:37:57,068 INFO L225 Difference]: With dead ends: 88785 [2022-11-25 18:37:57,068 INFO L226 Difference]: Without dead ends: 58399 [2022-11-25 18:37:57,097 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:37:57,097 INFO L413 NwaCegarLoop]: 241 mSDtfsCounter, 65 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 18:37:57,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 417 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 18:37:57,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58399 states. [2022-11-25 18:40:03,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58399 to 55901. [2022-11-25 18:40:03,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55901 states, 55900 states have (on average 1.3511091234347048) internal successors, (75527), 55900 states have internal predecessors, (75527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:40:03,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55901 states to 55901 states and 75527 transitions. [2022-11-25 18:40:03,884 INFO L78 Accepts]: Start accepts. Automaton has 55901 states and 75527 transitions. Word has length 121 [2022-11-25 18:40:03,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:40:03,884 INFO L495 AbstractCegarLoop]: Abstraction has 55901 states and 75527 transitions. [2022-11-25 18:40:03,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:40:03,884 INFO L276 IsEmpty]: Start isEmpty. Operand 55901 states and 75527 transitions. [2022-11-25 18:40:03,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-11-25 18:40:03,885 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:40:03,885 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:40:03,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-11-25 18:40:03,885 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-25 18:40:03,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:40:03,886 INFO L85 PathProgramCache]: Analyzing trace with hash 1801378661, now seen corresponding path program 1 times [2022-11-25 18:40:03,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:40:03,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32774637] [2022-11-25 18:40:03,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:40:03,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:40:03,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:40:04,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:40:04,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:40:04,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32774637] [2022-11-25 18:40:04,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32774637] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:40:04,046 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:40:04,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 18:40:04,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739633194] [2022-11-25 18:40:04,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:40:04,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 18:40:04,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:40:04,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 18:40:04,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-25 18:40:04,047 INFO L87 Difference]: Start difference. First operand 55901 states and 75527 transitions. Second operand has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 6 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)