./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 72fb41a66cb1f9b8ef6e2c9a867b06ff465ce26afd613e6d36809476f178395e --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-16 01:34:36,273 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 01:34:36,281 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 01:34:36,329 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 01:34:36,329 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 01:34:36,332 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 01:34:36,334 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 01:34:36,336 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 01:34:36,339 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 01:34:36,341 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 01:34:36,342 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 01:34:36,344 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 01:34:36,345 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 01:34:36,350 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 01:34:36,352 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 01:34:36,354 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 01:34:36,356 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 01:34:36,357 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 01:34:36,359 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 01:34:36,361 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 01:34:36,362 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 01:34:36,365 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 01:34:36,366 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 01:34:36,367 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 01:34:36,373 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 01:34:36,374 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 01:34:36,374 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 01:34:36,375 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 01:34:36,376 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 01:34:36,377 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 01:34:36,377 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 01:34:36,378 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 01:34:36,379 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 01:34:36,380 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 01:34:36,381 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 01:34:36,381 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 01:34:36,382 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 01:34:36,383 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 01:34:36,383 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 01:34:36,384 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 01:34:36,384 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 01:34:36,385 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-16 01:34:36,407 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 01:34:36,408 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 01:34:36,408 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 01:34:36,409 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 01:34:36,409 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-16 01:34:36,410 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-16 01:34:36,410 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 01:34:36,410 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 01:34:36,411 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 01:34:36,411 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 01:34:36,412 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-16 01:34:36,412 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 01:34:36,412 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-16 01:34:36,412 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 01:34:36,413 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-16 01:34:36,413 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-16 01:34:36,413 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-16 01:34:36,413 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-16 01:34:36,413 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 01:34:36,414 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 01:34:36,414 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-16 01:34:36,414 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 01:34:36,414 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 01:34:36,414 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-16 01:34:36,415 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 01:34:36,415 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 01:34:36,415 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-16 01:34:36,415 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-16 01:34:36,415 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 01:34:36,416 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-16 01:34:36,416 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-16 01:34:36,416 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-16 01:34:36,416 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-16 01:34:36,416 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 01:34:36,417 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 72fb41a66cb1f9b8ef6e2c9a867b06ff465ce26afd613e6d36809476f178395e [2021-12-16 01:34:36,634 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 01:34:36,662 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 01:34:36,665 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 01:34:36,666 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 01:34:36,666 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 01:34:36,667 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2021-12-16 01:34:36,728 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4aec2a261/f7a2ce10a0c843cf92ecb2f274e4a2c1/FLAG434040e2d [2021-12-16 01:34:37,308 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 01:34:37,309 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2021-12-16 01:34:37,341 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4aec2a261/f7a2ce10a0c843cf92ecb2f274e4a2c1/FLAG434040e2d [2021-12-16 01:34:37,501 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4aec2a261/f7a2ce10a0c843cf92ecb2f274e4a2c1 [2021-12-16 01:34:37,504 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 01:34:37,505 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 01:34:37,507 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 01:34:37,507 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 01:34:37,510 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 01:34:37,510 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 01:34:37" (1/1) ... [2021-12-16 01:34:37,512 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b0c4ce5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:34:37, skipping insertion in model container [2021-12-16 01:34:37,512 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 01:34:37" (1/1) ... [2021-12-16 01:34:37,517 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 01:34:37,629 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 01:34:37,961 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[13533,13546] [2021-12-16 01:34:37,997 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[18033,18046] [2021-12-16 01:34:38,016 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[19325,19338] [2021-12-16 01:34:38,020 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[20083,20096] [2021-12-16 01:34:38,028 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[21703,21716] [2021-12-16 01:34:38,033 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[22461,22474] [2021-12-16 01:34:38,038 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[23547,23560] [2021-12-16 01:34:38,049 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[26086,26099] [2021-12-16 01:34:38,054 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[26847,26860] [2021-12-16 01:34:38,060 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[27936,27949] [2021-12-16 01:34:38,069 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[29941,29954] [2021-12-16 01:34:38,085 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[33864,33877] [2021-12-16 01:34:38,089 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[34625,34638] [2021-12-16 01:34:38,096 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[35718,35731] [2021-12-16 01:34:38,111 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[37727,37740] [2021-12-16 01:34:38,142 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[41330,41343] [2021-12-16 01:34:38,180 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[48207,48220] [2021-12-16 01:34:38,186 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[48968,48981] [2021-12-16 01:34:38,197 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[50057,50070] [2021-12-16 01:34:38,204 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[52062,52075] [2021-12-16 01:34:38,215 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[55451,55464] [2021-12-16 01:34:38,236 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[61148,61161] [2021-12-16 01:34:38,502 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 01:34:38,513 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 01:34:38,577 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[13533,13546] [2021-12-16 01:34:38,587 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[18033,18046] [2021-12-16 01:34:38,592 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[19325,19338] [2021-12-16 01:34:38,595 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[20083,20096] [2021-12-16 01:34:38,599 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[21703,21716] [2021-12-16 01:34:38,602 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[22461,22474] [2021-12-16 01:34:38,605 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[23547,23560] [2021-12-16 01:34:38,613 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[26086,26099] [2021-12-16 01:34:38,616 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[26847,26860] [2021-12-16 01:34:38,620 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[27936,27949] [2021-12-16 01:34:38,625 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[29941,29954] [2021-12-16 01:34:38,634 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[33864,33877] [2021-12-16 01:34:38,637 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[34625,34638] [2021-12-16 01:34:38,640 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[35718,35731] [2021-12-16 01:34:38,646 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[37727,37740] [2021-12-16 01:34:38,655 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[41330,41343] [2021-12-16 01:34:38,674 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[48207,48220] [2021-12-16 01:34:38,677 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[48968,48981] [2021-12-16 01:34:38,681 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[50057,50070] [2021-12-16 01:34:38,686 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[52062,52075] [2021-12-16 01:34:38,694 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[55451,55464] [2021-12-16 01:34:38,707 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[61148,61161] [2021-12-16 01:34:38,882 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 01:34:38,908 INFO L208 MainTranslator]: Completed translation [2021-12-16 01:34:38,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:34:38 WrapperNode [2021-12-16 01:34:38,909 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 01:34:38,910 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 01:34:38,910 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 01:34:38,910 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 01:34:38,915 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:34:38" (1/1) ... [2021-12-16 01:34:38,956 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:34:38" (1/1) ... [2021-12-16 01:34:39,067 INFO L137 Inliner]: procedures = 26, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 6324 [2021-12-16 01:34:39,068 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 01:34:39,069 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 01:34:39,069 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 01:34:39,069 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 01:34:39,076 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:34:38" (1/1) ... [2021-12-16 01:34:39,077 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:34:38" (1/1) ... [2021-12-16 01:34:39,095 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:34:38" (1/1) ... [2021-12-16 01:34:39,096 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:34:38" (1/1) ... [2021-12-16 01:34:39,162 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:34:38" (1/1) ... [2021-12-16 01:34:39,196 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:34:38" (1/1) ... [2021-12-16 01:34:39,213 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:34:38" (1/1) ... [2021-12-16 01:34:39,237 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 01:34:39,238 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 01:34:39,239 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 01:34:39,239 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 01:34:39,240 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:34:38" (1/1) ... [2021-12-16 01:34:39,246 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 01:34:39,254 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 01:34:39,273 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-16 01:34:39,281 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-16 01:34:39,310 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 01:34:39,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-16 01:34:39,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 01:34:39,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 01:34:39,612 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 01:34:39,613 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 01:34:41,912 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 01:34:41,931 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 01:34:41,931 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-16 01:34:41,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:34:41 BoogieIcfgContainer [2021-12-16 01:34:41,936 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 01:34:41,938 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-16 01:34:41,938 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-16 01:34:41,941 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-16 01:34:41,941 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 01:34:37" (1/3) ... [2021-12-16 01:34:41,942 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33928a4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 01:34:41, skipping insertion in model container [2021-12-16 01:34:41,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:34:38" (2/3) ... [2021-12-16 01:34:41,943 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33928a4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 01:34:41, skipping insertion in model container [2021-12-16 01:34:41,943 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:34:41" (3/3) ... [2021-12-16 01:34:41,945 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2021-12-16 01:34:41,950 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-16 01:34:41,950 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2021-12-16 01:34:42,007 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-16 01:34:42,015 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-16 01:34:42,015 INFO L340 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2021-12-16 01:34:42,048 INFO L276 IsEmpty]: Start isEmpty. Operand has 1124 states, 1101 states have (on average 1.8601271571298819) internal successors, (2048), 1123 states have internal predecessors, (2048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:42,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-12-16 01:34:42,070 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:34:42,071 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 01:34:42,072 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-16 01:34:42,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:34:42,076 INFO L85 PathProgramCache]: Analyzing trace with hash -845723877, now seen corresponding path program 1 times [2021-12-16 01:34:42,082 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:34:42,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153557239] [2021-12-16 01:34:42,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:34:42,083 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:34:42,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:34:42,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:34:42,508 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:34:42,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153557239] [2021-12-16 01:34:42,508 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153557239] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:34:42,509 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:34:42,509 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 01:34:42,510 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017155029] [2021-12-16 01:34:42,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:34:42,516 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 01:34:42,517 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:34:42,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 01:34:42,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 01:34:42,550 INFO L87 Difference]: Start difference. First operand has 1124 states, 1101 states have (on average 1.8601271571298819) internal successors, (2048), 1123 states have internal predecessors, (2048), 0 states have call successors, (0), 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 17.0) internal successors, (85), 4 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) [2021-12-16 01:34:43,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:34:43,469 INFO L93 Difference]: Finished difference Result 1702 states and 2998 transitions. [2021-12-16 01:34:43,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 01:34:43,471 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 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 [2021-12-16 01:34:43,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:34:43,491 INFO L225 Difference]: With dead ends: 1702 [2021-12-16 01:34:43,491 INFO L226 Difference]: Without dead ends: 913 [2021-12-16 01:34:43,499 INFO L932 BasicCegarLoop]: 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 [2021-12-16 01:34:43,505 INFO L933 BasicCegarLoop]: 1012 mSDtfsCounter, 4598 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 589 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4598 SdHoareTripleChecker+Valid, 1090 SdHoareTripleChecker+Invalid, 658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-16 01:34:43,506 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4598 Valid, 1090 Invalid, 658 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 589 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-16 01:34:43,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 913 states. [2021-12-16 01:34:43,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 913 to 913. [2021-12-16 01:34:43,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 913 states, 891 states have (on average 1.3052749719416386) internal successors, (1163), 912 states have internal predecessors, (1163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:43,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 913 states to 913 states and 1163 transitions. [2021-12-16 01:34:43,595 INFO L78 Accepts]: Start accepts. Automaton has 913 states and 1163 transitions. Word has length 85 [2021-12-16 01:34:43,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:34:43,596 INFO L470 AbstractCegarLoop]: Abstraction has 913 states and 1163 transitions. [2021-12-16 01:34:43,596 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 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) [2021-12-16 01:34:43,597 INFO L276 IsEmpty]: Start isEmpty. Operand 913 states and 1163 transitions. [2021-12-16 01:34:43,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-12-16 01:34:43,606 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:34:43,606 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 01:34:43,606 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-16 01:34:43,609 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-16 01:34:43,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:34:43,613 INFO L85 PathProgramCache]: Analyzing trace with hash 1659261908, now seen corresponding path program 1 times [2021-12-16 01:34:43,613 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:34:43,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934915379] [2021-12-16 01:34:43,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:34:43,614 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:34:43,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:34:43,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:34:43,792 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:34:43,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934915379] [2021-12-16 01:34:43,793 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934915379] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:34:43,793 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:34:43,793 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 01:34:43,793 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830673808] [2021-12-16 01:34:43,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:34:43,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 01:34:43,795 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:34:43,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 01:34:43,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 01:34:43,795 INFO L87 Difference]: Start difference. First operand 913 states and 1163 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 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) [2021-12-16 01:34:44,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:34:44,276 INFO L93 Difference]: Finished difference Result 1482 states and 1951 transitions. [2021-12-16 01:34:44,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 01:34:44,277 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 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 [2021-12-16 01:34:44,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:34:44,280 INFO L225 Difference]: With dead ends: 1482 [2021-12-16 01:34:44,280 INFO L226 Difference]: Without dead ends: 785 [2021-12-16 01:34:44,281 INFO L932 BasicCegarLoop]: 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 [2021-12-16 01:34:44,282 INFO L933 BasicCegarLoop]: 559 mSDtfsCounter, 2945 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2945 SdHoareTripleChecker+Valid, 587 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-16 01:34:44,283 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2945 Valid, 587 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 461 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-16 01:34:44,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 785 states. [2021-12-16 01:34:44,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 785 to 785. [2021-12-16 01:34:44,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 785 states, 763 states have (on average 1.3342070773263435) internal successors, (1018), 784 states have internal predecessors, (1018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:44,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 785 states to 785 states and 1018 transitions. [2021-12-16 01:34:44,308 INFO L78 Accepts]: Start accepts. Automaton has 785 states and 1018 transitions. Word has length 86 [2021-12-16 01:34:44,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:34:44,310 INFO L470 AbstractCegarLoop]: Abstraction has 785 states and 1018 transitions. [2021-12-16 01:34:44,310 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 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) [2021-12-16 01:34:44,311 INFO L276 IsEmpty]: Start isEmpty. Operand 785 states and 1018 transitions. [2021-12-16 01:34:44,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-12-16 01:34:44,314 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:34:44,314 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 01:34:44,314 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-16 01:34:44,315 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-16 01:34:44,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:34:44,315 INFO L85 PathProgramCache]: Analyzing trace with hash -354616102, now seen corresponding path program 1 times [2021-12-16 01:34:44,316 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:34:44,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022372331] [2021-12-16 01:34:44,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:34:44,316 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:34:44,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:34:44,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:34:44,436 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:34:44,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022372331] [2021-12-16 01:34:44,436 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022372331] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:34:44,437 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:34:44,437 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 01:34:44,437 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005375590] [2021-12-16 01:34:44,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:34:44,438 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 01:34:44,439 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:34:44,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 01:34:44,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 01:34:44,440 INFO L87 Difference]: Start difference. First operand 785 states and 1018 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 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) [2021-12-16 01:34:45,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:34:45,000 INFO L93 Difference]: Finished difference Result 1700 states and 2275 transitions. [2021-12-16 01:34:45,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 01:34:45,001 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 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 [2021-12-16 01:34:45,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:34:45,007 INFO L225 Difference]: With dead ends: 1700 [2021-12-16 01:34:45,008 INFO L226 Difference]: Without dead ends: 1046 [2021-12-16 01:34:45,009 INFO L932 BasicCegarLoop]: 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 [2021-12-16 01:34:45,012 INFO L933 BasicCegarLoop]: 525 mSDtfsCounter, 3648 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 606 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3648 SdHoareTripleChecker+Valid, 795 SdHoareTripleChecker+Invalid, 620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 606 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-16 01:34:45,019 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3648 Valid, 795 Invalid, 620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 606 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-16 01:34:45,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1046 states. [2021-12-16 01:34:45,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1046 to 966. [2021-12-16 01:34:45,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 966 states, 944 states have (on average 1.4057203389830508) internal successors, (1327), 965 states have internal predecessors, (1327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:45,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 966 states to 966 states and 1327 transitions. [2021-12-16 01:34:45,058 INFO L78 Accepts]: Start accepts. Automaton has 966 states and 1327 transitions. Word has length 87 [2021-12-16 01:34:45,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:34:45,060 INFO L470 AbstractCegarLoop]: Abstraction has 966 states and 1327 transitions. [2021-12-16 01:34:45,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 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) [2021-12-16 01:34:45,060 INFO L276 IsEmpty]: Start isEmpty. Operand 966 states and 1327 transitions. [2021-12-16 01:34:45,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-12-16 01:34:45,062 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:34:45,063 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 01:34:45,063 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-16 01:34:45,063 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-16 01:34:45,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:34:45,064 INFO L85 PathProgramCache]: Analyzing trace with hash -2037300131, now seen corresponding path program 1 times [2021-12-16 01:34:45,064 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:34:45,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56940195] [2021-12-16 01:34:45,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:34:45,065 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:34:45,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:34:45,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:34:45,177 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:34:45,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56940195] [2021-12-16 01:34:45,177 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56940195] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:34:45,177 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:34:45,178 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 01:34:45,178 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566612480] [2021-12-16 01:34:45,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:34:45,178 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 01:34:45,179 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:34:45,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 01:34:45,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 01:34:45,179 INFO L87 Difference]: Start difference. First operand 966 states and 1327 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 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) [2021-12-16 01:34:45,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:34:45,700 INFO L93 Difference]: Finished difference Result 1801 states and 2516 transitions. [2021-12-16 01:34:45,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 01:34:45,700 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 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 [2021-12-16 01:34:45,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:34:45,704 INFO L225 Difference]: With dead ends: 1801 [2021-12-16 01:34:45,704 INFO L226 Difference]: Without dead ends: 946 [2021-12-16 01:34:45,705 INFO L932 BasicCegarLoop]: 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 [2021-12-16 01:34:45,706 INFO L933 BasicCegarLoop]: 402 mSDtfsCounter, 2496 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2496 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-16 01:34:45,706 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2496 Valid, 446 Invalid, 605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 500 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-16 01:34:45,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 946 states. [2021-12-16 01:34:45,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 946 to 946. [2021-12-16 01:34:45,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 946 states, 924 states have (on average 1.408008658008658) internal successors, (1301), 945 states have internal predecessors, (1301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:45,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 946 states to 946 states and 1301 transitions. [2021-12-16 01:34:45,737 INFO L78 Accepts]: Start accepts. Automaton has 946 states and 1301 transitions. Word has length 88 [2021-12-16 01:34:45,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:34:45,738 INFO L470 AbstractCegarLoop]: Abstraction has 946 states and 1301 transitions. [2021-12-16 01:34:45,738 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 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) [2021-12-16 01:34:45,738 INFO L276 IsEmpty]: Start isEmpty. Operand 946 states and 1301 transitions. [2021-12-16 01:34:45,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-12-16 01:34:45,743 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:34:45,743 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 01:34:45,744 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-16 01:34:45,744 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-16 01:34:45,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:34:45,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1647430021, now seen corresponding path program 1 times [2021-12-16 01:34:45,745 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:34:45,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357861903] [2021-12-16 01:34:45,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:34:45,750 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:34:45,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:34:45,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:34:45,852 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:34:45,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357861903] [2021-12-16 01:34:45,852 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357861903] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:34:45,852 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:34:45,852 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 01:34:45,853 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712682610] [2021-12-16 01:34:45,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:34:45,853 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 01:34:45,854 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:34:45,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 01:34:45,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 01:34:45,855 INFO L87 Difference]: Start difference. First operand 946 states and 1301 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:46,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:34:46,246 INFO L93 Difference]: Finished difference Result 1781 states and 2488 transitions. [2021-12-16 01:34:46,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 01:34:46,247 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2021-12-16 01:34:46,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:34:46,252 INFO L225 Difference]: With dead ends: 1781 [2021-12-16 01:34:46,252 INFO L226 Difference]: Without dead ends: 915 [2021-12-16 01:34:46,254 INFO L932 BasicCegarLoop]: 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 [2021-12-16 01:34:46,254 INFO L933 BasicCegarLoop]: 485 mSDtfsCounter, 2526 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2526 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-16 01:34:46,255 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2526 Valid, 497 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-16 01:34:46,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 915 states. [2021-12-16 01:34:46,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 915 to 915. [2021-12-16 01:34:46,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 915 states, 893 states have (on average 1.417693169092945) internal successors, (1266), 914 states have internal predecessors, (1266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:46,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 915 states to 915 states and 1266 transitions. [2021-12-16 01:34:46,305 INFO L78 Accepts]: Start accepts. Automaton has 915 states and 1266 transitions. Word has length 89 [2021-12-16 01:34:46,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:34:46,305 INFO L470 AbstractCegarLoop]: Abstraction has 915 states and 1266 transitions. [2021-12-16 01:34:46,305 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:46,305 INFO L276 IsEmpty]: Start isEmpty. Operand 915 states and 1266 transitions. [2021-12-16 01:34:46,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-12-16 01:34:46,307 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:34:46,307 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 01:34:46,307 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-16 01:34:46,308 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-16 01:34:46,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:34:46,308 INFO L85 PathProgramCache]: Analyzing trace with hash 1235398548, now seen corresponding path program 1 times [2021-12-16 01:34:46,309 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:34:46,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882232854] [2021-12-16 01:34:46,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:34:46,309 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:34:46,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:34:46,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:34:46,374 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:34:46,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882232854] [2021-12-16 01:34:46,375 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882232854] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:34:46,375 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:34:46,375 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 01:34:46,375 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097632376] [2021-12-16 01:34:46,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:34:46,376 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 01:34:46,376 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:34:46,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 01:34:46,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 01:34:46,377 INFO L87 Difference]: Start difference. First operand 915 states and 1266 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:46,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:34:46,763 INFO L93 Difference]: Finished difference Result 1750 states and 2451 transitions. [2021-12-16 01:34:46,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 01:34:46,763 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-12-16 01:34:46,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:34:46,767 INFO L225 Difference]: With dead ends: 1750 [2021-12-16 01:34:46,767 INFO L226 Difference]: Without dead ends: 901 [2021-12-16 01:34:46,768 INFO L932 BasicCegarLoop]: 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 [2021-12-16 01:34:46,769 INFO L933 BasicCegarLoop]: 471 mSDtfsCounter, 2461 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2461 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-16 01:34:46,769 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2461 Valid, 491 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-16 01:34:46,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 901 states. [2021-12-16 01:34:46,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 901 to 901. [2021-12-16 01:34:46,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 879 states have (on average 1.4209328782707622) internal successors, (1249), 900 states have internal predecessors, (1249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:46,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1249 transitions. [2021-12-16 01:34:46,806 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1249 transitions. Word has length 90 [2021-12-16 01:34:46,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:34:46,806 INFO L470 AbstractCegarLoop]: Abstraction has 901 states and 1249 transitions. [2021-12-16 01:34:46,807 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:46,807 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1249 transitions. [2021-12-16 01:34:46,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-12-16 01:34:46,809 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:34:46,809 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 01:34:46,809 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-16 01:34:46,809 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-16 01:34:46,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:34:46,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1183984296, now seen corresponding path program 1 times [2021-12-16 01:34:46,810 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:34:46,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485094572] [2021-12-16 01:34:46,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:34:46,810 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:34:46,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:34:46,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:34:46,977 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:34:46,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485094572] [2021-12-16 01:34:46,977 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485094572] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:34:46,977 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:34:46,977 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-16 01:34:46,977 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586958497] [2021-12-16 01:34:46,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:34:46,978 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-16 01:34:46,978 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:34:46,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-16 01:34:46,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-16 01:34:46,979 INFO L87 Difference]: Start difference. First operand 901 states and 1249 transitions. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:47,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:34:47,838 INFO L93 Difference]: Finished difference Result 1639 states and 2213 transitions. [2021-12-16 01:34:47,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-16 01:34:47,839 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2021-12-16 01:34:47,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:34:47,843 INFO L225 Difference]: With dead ends: 1639 [2021-12-16 01:34:47,843 INFO L226 Difference]: Without dead ends: 1222 [2021-12-16 01:34:47,846 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2021-12-16 01:34:47,847 INFO L933 BasicCegarLoop]: 404 mSDtfsCounter, 4364 mSDsluCounter, 967 mSDsCounter, 0 mSdLazyCounter, 1284 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4364 SdHoareTripleChecker+Valid, 1371 SdHoareTripleChecker+Invalid, 1361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 1284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-16 01:34:47,848 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4364 Valid, 1371 Invalid, 1361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 1284 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-16 01:34:47,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1222 states. [2021-12-16 01:34:47,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1222 to 901. [2021-12-16 01:34:47,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 879 states have (on average 1.4197952218430034) internal successors, (1248), 900 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:47,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1248 transitions. [2021-12-16 01:34:47,897 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1248 transitions. Word has length 91 [2021-12-16 01:34:47,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:34:47,900 INFO L470 AbstractCegarLoop]: Abstraction has 901 states and 1248 transitions. [2021-12-16 01:34:47,900 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:47,900 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1248 transitions. [2021-12-16 01:34:47,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-12-16 01:34:47,902 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:34:47,902 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 01:34:47,902 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-16 01:34:47,903 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-16 01:34:47,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:34:47,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1428942257, now seen corresponding path program 1 times [2021-12-16 01:34:47,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:34:47,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615903323] [2021-12-16 01:34:47,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:34:47,906 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:34:47,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:34:48,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:34:48,075 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:34:48,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615903323] [2021-12-16 01:34:48,075 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615903323] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:34:48,075 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:34:48,075 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 01:34:48,075 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300791845] [2021-12-16 01:34:48,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:34:48,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 01:34:48,076 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:34:48,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 01:34:48,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-16 01:34:48,077 INFO L87 Difference]: Start difference. First operand 901 states and 1248 transitions. Second operand has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:49,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:34:49,120 INFO L93 Difference]: Finished difference Result 1392 states and 1967 transitions. [2021-12-16 01:34:49,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-16 01:34:49,121 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2021-12-16 01:34:49,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:34:49,125 INFO L225 Difference]: With dead ends: 1392 [2021-12-16 01:34:49,125 INFO L226 Difference]: Without dead ends: 1128 [2021-12-16 01:34:49,126 INFO L932 BasicCegarLoop]: 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 [2021-12-16 01:34:49,127 INFO L933 BasicCegarLoop]: 523 mSDtfsCounter, 3621 mSDsluCounter, 1604 mSDsCounter, 0 mSdLazyCounter, 1719 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3621 SdHoareTripleChecker+Valid, 2127 SdHoareTripleChecker+Invalid, 1749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-16 01:34:49,127 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3621 Valid, 2127 Invalid, 1749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1719 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-16 01:34:49,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1128 states. [2021-12-16 01:34:49,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1128 to 901. [2021-12-16 01:34:49,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 879 states have (on average 1.4186575654152447) internal successors, (1247), 900 states have internal predecessors, (1247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:49,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1247 transitions. [2021-12-16 01:34:49,179 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1247 transitions. Word has length 91 [2021-12-16 01:34:49,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:34:49,180 INFO L470 AbstractCegarLoop]: Abstraction has 901 states and 1247 transitions. [2021-12-16 01:34:49,180 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:49,180 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1247 transitions. [2021-12-16 01:34:49,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-12-16 01:34:49,182 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:34:49,182 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 01:34:49,182 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-16 01:34:49,183 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-16 01:34:49,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:34:49,183 INFO L85 PathProgramCache]: Analyzing trace with hash -1459275419, now seen corresponding path program 1 times [2021-12-16 01:34:49,183 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:34:49,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038612279] [2021-12-16 01:34:49,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:34:49,184 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:34:49,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:34:49,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:34:49,333 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:34:49,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038612279] [2021-12-16 01:34:49,334 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038612279] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:34:49,334 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:34:49,334 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 01:34:49,334 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21356274] [2021-12-16 01:34:49,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:34:49,335 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 01:34:49,335 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:34:49,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 01:34:49,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-16 01:34:49,336 INFO L87 Difference]: Start difference. First operand 901 states and 1247 transitions. Second operand has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:50,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:34:50,611 INFO L93 Difference]: Finished difference Result 1917 states and 2715 transitions. [2021-12-16 01:34:50,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-16 01:34:50,611 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2021-12-16 01:34:50,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:34:50,618 INFO L225 Difference]: With dead ends: 1917 [2021-12-16 01:34:50,618 INFO L226 Difference]: Without dead ends: 1722 [2021-12-16 01:34:50,619 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-16 01:34:50,621 INFO L933 BasicCegarLoop]: 614 mSDtfsCounter, 4110 mSDsluCounter, 1982 mSDsCounter, 0 mSdLazyCounter, 2061 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4110 SdHoareTripleChecker+Valid, 2596 SdHoareTripleChecker+Invalid, 2098 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 2061 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-16 01:34:50,622 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4110 Valid, 2596 Invalid, 2098 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 2061 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-16 01:34:50,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1722 states. [2021-12-16 01:34:50,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1722 to 901. [2021-12-16 01:34:50,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 879 states have (on average 1.4175199089874857) internal successors, (1246), 900 states have internal predecessors, (1246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:50,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1246 transitions. [2021-12-16 01:34:50,705 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1246 transitions. Word has length 91 [2021-12-16 01:34:50,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:34:50,705 INFO L470 AbstractCegarLoop]: Abstraction has 901 states and 1246 transitions. [2021-12-16 01:34:50,706 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:50,706 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1246 transitions. [2021-12-16 01:34:50,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-12-16 01:34:50,708 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:34:50,708 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 01:34:50,708 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-16 01:34:50,708 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-16 01:34:50,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:34:50,709 INFO L85 PathProgramCache]: Analyzing trace with hash -2136143015, now seen corresponding path program 1 times [2021-12-16 01:34:50,709 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:34:50,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220414922] [2021-12-16 01:34:50,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:34:50,710 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:34:50,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:34:50,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:34:50,909 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:34:50,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220414922] [2021-12-16 01:34:50,910 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220414922] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:34:50,910 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:34:50,910 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-16 01:34:50,910 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836226672] [2021-12-16 01:34:50,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:34:50,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-16 01:34:50,911 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:34:50,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-16 01:34:50,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-12-16 01:34:50,912 INFO L87 Difference]: Start difference. First operand 901 states and 1246 transitions. Second operand has 11 states, 11 states have (on average 8.454545454545455) internal successors, (93), 10 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:52,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:34:52,615 INFO L93 Difference]: Finished difference Result 1763 states and 2494 transitions. [2021-12-16 01:34:52,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-16 01:34:52,616 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.454545454545455) internal successors, (93), 10 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2021-12-16 01:34:52,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:34:52,621 INFO L225 Difference]: With dead ends: 1763 [2021-12-16 01:34:52,621 INFO L226 Difference]: Without dead ends: 1363 [2021-12-16 01:34:52,622 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=176, Invalid=474, Unknown=0, NotChecked=0, Total=650 [2021-12-16 01:34:52,622 INFO L933 BasicCegarLoop]: 609 mSDtfsCounter, 3297 mSDsluCounter, 2835 mSDsCounter, 0 mSdLazyCounter, 2813 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3297 SdHoareTripleChecker+Valid, 3444 SdHoareTripleChecker+Invalid, 2852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 2813 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-16 01:34:52,623 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3297 Valid, 3444 Invalid, 2852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 2813 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-16 01:34:52,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1363 states. [2021-12-16 01:34:52,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1363 to 901. [2021-12-16 01:34:52,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 879 states have (on average 1.4152445961319682) internal successors, (1244), 900 states have internal predecessors, (1244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:52,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1244 transitions. [2021-12-16 01:34:52,672 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1244 transitions. Word has length 93 [2021-12-16 01:34:52,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:34:52,673 INFO L470 AbstractCegarLoop]: Abstraction has 901 states and 1244 transitions. [2021-12-16 01:34:52,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.454545454545455) internal successors, (93), 10 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:52,673 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1244 transitions. [2021-12-16 01:34:52,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-12-16 01:34:52,675 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:34:52,675 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 01:34:52,675 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-16 01:34:52,676 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-16 01:34:52,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:34:52,676 INFO L85 PathProgramCache]: Analyzing trace with hash -2068984294, now seen corresponding path program 1 times [2021-12-16 01:34:52,676 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:34:52,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710893090] [2021-12-16 01:34:52,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:34:52,677 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:34:52,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:34:52,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:34:52,812 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:34:52,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710893090] [2021-12-16 01:34:52,812 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710893090] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:34:52,812 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:34:52,812 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 01:34:52,813 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655404733] [2021-12-16 01:34:52,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:34:52,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 01:34:52,813 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:34:52,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 01:34:52,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-16 01:34:52,814 INFO L87 Difference]: Start difference. First operand 901 states and 1244 transitions. Second operand has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:54,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:34:54,130 INFO L93 Difference]: Finished difference Result 1884 states and 2657 transitions. [2021-12-16 01:34:54,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-16 01:34:54,130 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2021-12-16 01:34:54,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:34:54,136 INFO L225 Difference]: With dead ends: 1884 [2021-12-16 01:34:54,136 INFO L226 Difference]: Without dead ends: 1694 [2021-12-16 01:34:54,137 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-12-16 01:34:54,137 INFO L933 BasicCegarLoop]: 569 mSDtfsCounter, 4771 mSDsluCounter, 1846 mSDsCounter, 0 mSdLazyCounter, 1946 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4771 SdHoareTripleChecker+Valid, 2415 SdHoareTripleChecker+Invalid, 2021 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 1946 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-16 01:34:54,138 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4771 Valid, 2415 Invalid, 2021 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 1946 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-16 01:34:54,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1694 states. [2021-12-16 01:34:54,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1694 to 901. [2021-12-16 01:34:54,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 879 states have (on average 1.4129692832764504) internal successors, (1242), 900 states have internal predecessors, (1242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:54,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1242 transitions. [2021-12-16 01:34:54,194 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1242 transitions. Word has length 93 [2021-12-16 01:34:54,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:34:54,195 INFO L470 AbstractCegarLoop]: Abstraction has 901 states and 1242 transitions. [2021-12-16 01:34:54,195 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:54,195 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1242 transitions. [2021-12-16 01:34:54,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-12-16 01:34:54,197 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:34:54,197 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 01:34:54,198 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-16 01:34:54,198 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-16 01:34:54,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:34:54,198 INFO L85 PathProgramCache]: Analyzing trace with hash 928092964, now seen corresponding path program 1 times [2021-12-16 01:34:54,199 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:34:54,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655576763] [2021-12-16 01:34:54,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:34:54,199 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:34:54,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:34:54,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:34:54,348 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:34:54,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655576763] [2021-12-16 01:34:54,349 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655576763] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:34:54,349 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:34:54,349 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 01:34:54,349 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938587557] [2021-12-16 01:34:54,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:34:54,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 01:34:54,350 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:34:54,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 01:34:54,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-16 01:34:54,351 INFO L87 Difference]: Start difference. First operand 901 states and 1242 transitions. Second operand has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:55,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:34:55,648 INFO L93 Difference]: Finished difference Result 1966 states and 2774 transitions. [2021-12-16 01:34:55,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-16 01:34:55,648 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2021-12-16 01:34:55,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:34:55,655 INFO L225 Difference]: With dead ends: 1966 [2021-12-16 01:34:55,655 INFO L226 Difference]: Without dead ends: 1722 [2021-12-16 01:34:55,656 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-16 01:34:55,657 INFO L933 BasicCegarLoop]: 795 mSDtfsCounter, 3767 mSDsluCounter, 2494 mSDsCounter, 0 mSdLazyCounter, 2521 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3767 SdHoareTripleChecker+Valid, 3289 SdHoareTripleChecker+Invalid, 2555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 2521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-16 01:34:55,657 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3767 Valid, 3289 Invalid, 2555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 2521 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-16 01:34:55,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1722 states. [2021-12-16 01:34:55,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1722 to 901. [2021-12-16 01:34:55,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 879 states have (on average 1.410693970420933) internal successors, (1240), 900 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:55,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1240 transitions. [2021-12-16 01:34:55,719 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1240 transitions. Word has length 93 [2021-12-16 01:34:55,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:34:55,719 INFO L470 AbstractCegarLoop]: Abstraction has 901 states and 1240 transitions. [2021-12-16 01:34:55,720 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:55,720 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1240 transitions. [2021-12-16 01:34:55,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-12-16 01:34:55,722 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:34:55,722 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 01:34:55,722 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-16 01:34:55,722 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-16 01:34:55,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:34:55,723 INFO L85 PathProgramCache]: Analyzing trace with hash 538302253, now seen corresponding path program 1 times [2021-12-16 01:34:55,723 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:34:55,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502731001] [2021-12-16 01:34:55,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:34:55,724 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:34:55,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:34:55,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:34:55,874 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:34:55,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502731001] [2021-12-16 01:34:55,874 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502731001] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:34:55,875 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:34:55,875 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 01:34:55,875 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962715339] [2021-12-16 01:34:55,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:34:55,875 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 01:34:55,876 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:34:55,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 01:34:55,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-16 01:34:55,876 INFO L87 Difference]: Start difference. First operand 901 states and 1240 transitions. Second operand has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:57,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:34:57,081 INFO L93 Difference]: Finished difference Result 1865 states and 2626 transitions. [2021-12-16 01:34:57,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-16 01:34:57,081 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2021-12-16 01:34:57,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:34:57,087 INFO L225 Difference]: With dead ends: 1865 [2021-12-16 01:34:57,087 INFO L226 Difference]: Without dead ends: 1694 [2021-12-16 01:34:57,088 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-12-16 01:34:57,088 INFO L933 BasicCegarLoop]: 614 mSDtfsCounter, 4526 mSDsluCounter, 1978 mSDsCounter, 0 mSdLazyCounter, 2081 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4526 SdHoareTripleChecker+Valid, 2592 SdHoareTripleChecker+Invalid, 2153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 2081 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-16 01:34:57,088 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4526 Valid, 2592 Invalid, 2153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 2081 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-16 01:34:57,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1694 states. [2021-12-16 01:34:57,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1694 to 901. [2021-12-16 01:34:57,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 879 states have (on average 1.4095563139931742) internal successors, (1239), 900 states have internal predecessors, (1239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:57,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1239 transitions. [2021-12-16 01:34:57,149 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1239 transitions. Word has length 93 [2021-12-16 01:34:57,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:34:57,149 INFO L470 AbstractCegarLoop]: Abstraction has 901 states and 1239 transitions. [2021-12-16 01:34:57,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:57,150 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1239 transitions. [2021-12-16 01:34:57,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-12-16 01:34:57,151 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:34:57,152 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 01:34:57,152 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-16 01:34:57,152 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-16 01:34:57,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:34:57,152 INFO L85 PathProgramCache]: Analyzing trace with hash -350742557, now seen corresponding path program 1 times [2021-12-16 01:34:57,153 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:34:57,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600685235] [2021-12-16 01:34:57,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:34:57,153 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:34:57,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:34:57,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:34:57,273 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:34:57,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600685235] [2021-12-16 01:34:57,274 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600685235] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:34:57,274 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:34:57,274 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 01:34:57,274 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777528115] [2021-12-16 01:34:57,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:34:57,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 01:34:57,275 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:34:57,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 01:34:57,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-16 01:34:57,276 INFO L87 Difference]: Start difference. First operand 901 states and 1239 transitions. Second operand has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:58,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:34:58,528 INFO L93 Difference]: Finished difference Result 1932 states and 2721 transitions. [2021-12-16 01:34:58,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-16 01:34:58,529 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2021-12-16 01:34:58,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:34:58,535 INFO L225 Difference]: With dead ends: 1932 [2021-12-16 01:34:58,535 INFO L226 Difference]: Without dead ends: 1722 [2021-12-16 01:34:58,536 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-16 01:34:58,537 INFO L933 BasicCegarLoop]: 808 mSDtfsCounter, 3762 mSDsluCounter, 2352 mSDsCounter, 0 mSdLazyCounter, 2411 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3762 SdHoareTripleChecker+Valid, 3160 SdHoareTripleChecker+Invalid, 2445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 2411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-16 01:34:58,537 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3762 Valid, 3160 Invalid, 2445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 2411 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-16 01:34:58,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1722 states. [2021-12-16 01:34:58,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1722 to 901. [2021-12-16 01:34:58,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 879 states have (on average 1.4084186575654152) internal successors, (1238), 900 states have internal predecessors, (1238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:58,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1238 transitions. [2021-12-16 01:34:58,598 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1238 transitions. Word has length 93 [2021-12-16 01:34:58,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:34:58,599 INFO L470 AbstractCegarLoop]: Abstraction has 901 states and 1238 transitions. [2021-12-16 01:34:58,599 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:58,599 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1238 transitions. [2021-12-16 01:34:58,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-12-16 01:34:58,601 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:34:58,601 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 01:34:58,601 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-16 01:34:58,601 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-16 01:34:58,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:34:58,602 INFO L85 PathProgramCache]: Analyzing trace with hash 1779757049, now seen corresponding path program 1 times [2021-12-16 01:34:58,602 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:34:58,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84347966] [2021-12-16 01:34:58,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:34:58,603 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:34:58,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:34:58,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:34:58,723 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:34:58,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84347966] [2021-12-16 01:34:58,724 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84347966] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:34:58,724 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:34:58,724 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 01:34:58,724 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096107012] [2021-12-16 01:34:58,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:34:58,724 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 01:34:58,725 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:34:58,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 01:34:58,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-16 01:34:58,725 INFO L87 Difference]: Start difference. First operand 901 states and 1238 transitions. Second operand has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:59,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:34:59,949 INFO L93 Difference]: Finished difference Result 1859 states and 2618 transitions. [2021-12-16 01:34:59,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-16 01:34:59,950 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2021-12-16 01:34:59,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:34:59,955 INFO L225 Difference]: With dead ends: 1859 [2021-12-16 01:34:59,955 INFO L226 Difference]: Without dead ends: 1694 [2021-12-16 01:34:59,956 INFO L932 BasicCegarLoop]: 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 [2021-12-16 01:34:59,956 INFO L933 BasicCegarLoop]: 651 mSDtfsCounter, 4304 mSDsluCounter, 2107 mSDsCounter, 0 mSdLazyCounter, 2218 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4304 SdHoareTripleChecker+Valid, 2758 SdHoareTripleChecker+Invalid, 2287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 2218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-16 01:34:59,956 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4304 Valid, 2758 Invalid, 2287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 2218 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-16 01:34:59,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1694 states. [2021-12-16 01:35:00,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1694 to 901. [2021-12-16 01:35:00,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 879 states have (on average 1.4072810011376564) internal successors, (1237), 900 states have internal predecessors, (1237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:35:00,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1237 transitions. [2021-12-16 01:35:00,030 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1237 transitions. Word has length 93 [2021-12-16 01:35:00,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:35:00,030 INFO L470 AbstractCegarLoop]: Abstraction has 901 states and 1237 transitions. [2021-12-16 01:35:00,030 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:35:00,030 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1237 transitions. [2021-12-16 01:35:00,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-12-16 01:35:00,032 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:35:00,032 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 01:35:00,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-16 01:35:00,033 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-16 01:35:00,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:35:00,033 INFO L85 PathProgramCache]: Analyzing trace with hash 162924990, now seen corresponding path program 1 times [2021-12-16 01:35:00,033 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:35:00,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112582601] [2021-12-16 01:35:00,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:35:00,034 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:35:00,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:35:00,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:35:00,150 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:35:00,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112582601] [2021-12-16 01:35:00,152 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112582601] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:35:00,152 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:35:00,152 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 01:35:00,152 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664237513] [2021-12-16 01:35:00,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:35:00,153 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 01:35:00,153 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:35:00,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 01:35:00,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-16 01:35:00,154 INFO L87 Difference]: Start difference. First operand 901 states and 1237 transitions. Second operand has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:35:01,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:35:01,419 INFO L93 Difference]: Finished difference Result 1865 states and 2622 transitions. [2021-12-16 01:35:01,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-16 01:35:01,419 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2021-12-16 01:35:01,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:35:01,424 INFO L225 Difference]: With dead ends: 1865 [2021-12-16 01:35:01,424 INFO L226 Difference]: Without dead ends: 1694 [2021-12-16 01:35:01,425 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-16 01:35:01,426 INFO L933 BasicCegarLoop]: 723 mSDtfsCounter, 3162 mSDsluCounter, 2192 mSDsCounter, 0 mSdLazyCounter, 2332 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3162 SdHoareTripleChecker+Valid, 2915 SdHoareTripleChecker+Invalid, 2383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 2332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-16 01:35:01,426 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3162 Valid, 2915 Invalid, 2383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 2332 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-16 01:35:01,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1694 states. [2021-12-16 01:35:01,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1694 to 901. [2021-12-16 01:35:01,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 879 states have (on average 1.4061433447098977) internal successors, (1236), 900 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:35:01,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1236 transitions. [2021-12-16 01:35:01,491 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1236 transitions. Word has length 93 [2021-12-16 01:35:01,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:35:01,492 INFO L470 AbstractCegarLoop]: Abstraction has 901 states and 1236 transitions. [2021-12-16 01:35:01,492 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:35:01,492 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1236 transitions. [2021-12-16 01:35:01,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-16 01:35:01,494 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:35:01,494 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 01:35:01,494 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-16 01:35:01,494 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-16 01:35:01,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:35:01,496 INFO L85 PathProgramCache]: Analyzing trace with hash 1878690134, now seen corresponding path program 1 times [2021-12-16 01:35:01,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:35:01,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128880815] [2021-12-16 01:35:01,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:35:01,496 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:35:01,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:35:01,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:35:01,618 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:35:01,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128880815] [2021-12-16 01:35:01,619 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128880815] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:35:01,619 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:35:01,619 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 01:35:01,619 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060113354] [2021-12-16 01:35:01,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:35:01,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 01:35:01,620 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:35:01,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 01:35:01,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-16 01:35:01,621 INFO L87 Difference]: Start difference. First operand 901 states and 1236 transitions. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:35:02,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:35:02,731 INFO L93 Difference]: Finished difference Result 1896 states and 2662 transitions. [2021-12-16 01:35:02,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-16 01:35:02,731 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2021-12-16 01:35:02,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:35:02,737 INFO L225 Difference]: With dead ends: 1896 [2021-12-16 01:35:02,737 INFO L226 Difference]: Without dead ends: 1694 [2021-12-16 01:35:02,738 INFO L932 BasicCegarLoop]: 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 [2021-12-16 01:35:02,739 INFO L933 BasicCegarLoop]: 616 mSDtfsCounter, 4641 mSDsluCounter, 2022 mSDsCounter, 0 mSdLazyCounter, 2055 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4641 SdHoareTripleChecker+Valid, 2638 SdHoareTripleChecker+Invalid, 2128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 2055 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-16 01:35:02,739 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4641 Valid, 2638 Invalid, 2128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 2055 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-16 01:35:02,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1694 states. [2021-12-16 01:35:02,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1694 to 901. [2021-12-16 01:35:02,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 879 states have (on average 1.40386803185438) internal successors, (1234), 900 states have internal predecessors, (1234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:35:02,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1234 transitions. [2021-12-16 01:35:02,821 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1234 transitions. Word has length 95 [2021-12-16 01:35:02,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:35:02,822 INFO L470 AbstractCegarLoop]: Abstraction has 901 states and 1234 transitions. [2021-12-16 01:35:02,822 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:35:02,822 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1234 transitions. [2021-12-16 01:35:02,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-16 01:35:02,824 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:35:02,824 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 01:35:02,824 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-16 01:35:02,825 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-16 01:35:02,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:35:02,825 INFO L85 PathProgramCache]: Analyzing trace with hash 1469844906, now seen corresponding path program 1 times [2021-12-16 01:35:02,825 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:35:02,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438509176] [2021-12-16 01:35:02,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:35:02,826 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:35:02,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:35:02,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:35:02,940 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:35:02,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438509176] [2021-12-16 01:35:02,940 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438509176] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:35:02,940 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:35:02,940 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 01:35:02,941 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859915931] [2021-12-16 01:35:02,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:35:02,941 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 01:35:02,942 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:35:02,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 01:35:02,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-16 01:35:02,942 INFO L87 Difference]: Start difference. First operand 901 states and 1234 transitions. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:35:04,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:35:04,202 INFO L93 Difference]: Finished difference Result 1838 states and 2573 transitions. [2021-12-16 01:35:04,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-16 01:35:04,204 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2021-12-16 01:35:04,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:35:04,209 INFO L225 Difference]: With dead ends: 1838 [2021-12-16 01:35:04,209 INFO L226 Difference]: Without dead ends: 1670 [2021-12-16 01:35:04,210 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-16 01:35:04,211 INFO L933 BasicCegarLoop]: 619 mSDtfsCounter, 3832 mSDsluCounter, 2607 mSDsCounter, 0 mSdLazyCounter, 2554 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3832 SdHoareTripleChecker+Valid, 3226 SdHoareTripleChecker+Invalid, 2653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 2554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-16 01:35:04,211 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3832 Valid, 3226 Invalid, 2653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 2554 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-16 01:35:04,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1670 states. [2021-12-16 01:35:04,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1670 to 901. [2021-12-16 01:35:04,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 879 states have (on average 1.4015927189988624) internal successors, (1232), 900 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:35:04,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1232 transitions. [2021-12-16 01:35:04,278 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1232 transitions. Word has length 95 [2021-12-16 01:35:04,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:35:04,278 INFO L470 AbstractCegarLoop]: Abstraction has 901 states and 1232 transitions. [2021-12-16 01:35:04,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:35:04,279 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1232 transitions. [2021-12-16 01:35:04,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-16 01:35:04,280 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:35:04,281 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 01:35:04,281 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-16 01:35:04,281 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-16 01:35:04,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:35:04,282 INFO L85 PathProgramCache]: Analyzing trace with hash -2020844490, now seen corresponding path program 1 times [2021-12-16 01:35:04,282 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:35:04,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885367148] [2021-12-16 01:35:04,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:35:04,282 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:35:04,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:35:04,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:35:04,393 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:35:04,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885367148] [2021-12-16 01:35:04,395 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885367148] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:35:04,396 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:35:04,396 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 01:35:04,396 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184685558] [2021-12-16 01:35:04,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:35:04,397 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 01:35:04,397 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:35:04,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 01:35:04,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-16 01:35:04,398 INFO L87 Difference]: Start difference. First operand 901 states and 1232 transitions. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:35:05,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:35:05,818 INFO L93 Difference]: Finished difference Result 1998 states and 2797 transitions. [2021-12-16 01:35:05,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-16 01:35:05,819 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2021-12-16 01:35:05,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:35:05,824 INFO L225 Difference]: With dead ends: 1998 [2021-12-16 01:35:05,824 INFO L226 Difference]: Without dead ends: 1722 [2021-12-16 01:35:05,825 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-16 01:35:05,826 INFO L933 BasicCegarLoop]: 808 mSDtfsCounter, 2932 mSDsluCounter, 2988 mSDsCounter, 0 mSdLazyCounter, 2852 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2932 SdHoareTripleChecker+Valid, 3796 SdHoareTripleChecker+Invalid, 2879 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 2852 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-16 01:35:05,826 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2932 Valid, 3796 Invalid, 2879 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 2852 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-16 01:35:05,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1722 states. [2021-12-16 01:35:05,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1722 to 901. [2021-12-16 01:35:05,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 879 states have (on average 1.3993174061433447) internal successors, (1230), 900 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:35:05,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1230 transitions. [2021-12-16 01:35:05,898 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1230 transitions. Word has length 95 [2021-12-16 01:35:05,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:35:05,899 INFO L470 AbstractCegarLoop]: Abstraction has 901 states and 1230 transitions. [2021-12-16 01:35:05,899 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:35:05,899 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1230 transitions. [2021-12-16 01:35:05,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-16 01:35:05,900 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:35:05,900 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 01:35:05,900 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-16 01:35:05,900 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-16 01:35:05,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:35:05,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1920722797, now seen corresponding path program 1 times [2021-12-16 01:35:05,901 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:35:05,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143052499] [2021-12-16 01:35:05,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:35:05,901 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:35:05,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:35:06,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:35:06,011 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:35:06,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143052499] [2021-12-16 01:35:06,012 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143052499] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:35:06,012 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:35:06,012 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 01:35:06,012 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629007316] [2021-12-16 01:35:06,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:35:06,012 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 01:35:06,013 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:35:06,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 01:35:06,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-16 01:35:06,013 INFO L87 Difference]: Start difference. First operand 901 states and 1230 transitions. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:35:07,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:35:07,351 INFO L93 Difference]: Finished difference Result 1832 states and 2562 transitions. [2021-12-16 01:35:07,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-16 01:35:07,351 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2021-12-16 01:35:07,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:35:07,356 INFO L225 Difference]: With dead ends: 1832 [2021-12-16 01:35:07,356 INFO L226 Difference]: Without dead ends: 1670 [2021-12-16 01:35:07,357 INFO L932 BasicCegarLoop]: 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 [2021-12-16 01:35:07,359 INFO L933 BasicCegarLoop]: 670 mSDtfsCounter, 3725 mSDsluCounter, 2763 mSDsCounter, 0 mSdLazyCounter, 2723 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3725 SdHoareTripleChecker+Valid, 3433 SdHoareTripleChecker+Invalid, 2820 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 2723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-16 01:35:07,359 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3725 Valid, 3433 Invalid, 2820 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 2723 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-16 01:35:07,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1670 states. [2021-12-16 01:35:07,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1670 to 901. [2021-12-16 01:35:07,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 879 states have (on average 1.3970420932878271) internal successors, (1228), 900 states have internal predecessors, (1228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:35:07,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1228 transitions. [2021-12-16 01:35:07,466 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1228 transitions. Word has length 95 [2021-12-16 01:35:07,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:35:07,466 INFO L470 AbstractCegarLoop]: Abstraction has 901 states and 1228 transitions. [2021-12-16 01:35:07,466 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:35:07,466 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1228 transitions. [2021-12-16 01:35:07,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-16 01:35:07,468 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:35:07,468 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 01:35:07,468 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-16 01:35:07,469 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-16 01:35:07,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:35:07,469 INFO L85 PathProgramCache]: Analyzing trace with hash -523524958, now seen corresponding path program 1 times [2021-12-16 01:35:07,469 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:35:07,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941503525] [2021-12-16 01:35:07,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:35:07,470 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:35:07,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:35:07,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:35:07,653 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:35:07,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941503525] [2021-12-16 01:35:07,653 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941503525] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:35:07,653 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:35:07,653 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-16 01:35:07,653 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316504906] [2021-12-16 01:35:07,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:35:07,654 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-16 01:35:07,654 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:35:07,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-16 01:35:07,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-16 01:35:07,655 INFO L87 Difference]: Start difference. First operand 901 states and 1228 transitions. Second operand has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:35:09,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:35:09,929 INFO L93 Difference]: Finished difference Result 2732 states and 3888 transitions. [2021-12-16 01:35:09,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-16 01:35:09,929 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2021-12-16 01:35:09,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:35:09,933 INFO L225 Difference]: With dead ends: 2732 [2021-12-16 01:35:09,933 INFO L226 Difference]: Without dead ends: 2568 [2021-12-16 01:35:09,934 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-16 01:35:09,935 INFO L933 BasicCegarLoop]: 758 mSDtfsCounter, 6382 mSDsluCounter, 2644 mSDsCounter, 0 mSdLazyCounter, 2856 mSolverCounterSat, 725 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6382 SdHoareTripleChecker+Valid, 3402 SdHoareTripleChecker+Invalid, 3581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 725 IncrementalHoareTripleChecker+Valid, 2856 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-16 01:35:09,935 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6382 Valid, 3402 Invalid, 3581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [725 Valid, 2856 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-16 01:35:09,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2568 states. [2021-12-16 01:35:10,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2568 to 909. [2021-12-16 01:35:10,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 909 states, 887 states have (on average 1.3934611048478016) internal successors, (1236), 908 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:35:10,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1236 transitions. [2021-12-16 01:35:10,019 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1236 transitions. Word has length 95 [2021-12-16 01:35:10,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:35:10,019 INFO L470 AbstractCegarLoop]: Abstraction has 909 states and 1236 transitions. [2021-12-16 01:35:10,019 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:35:10,019 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1236 transitions. [2021-12-16 01:35:10,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-16 01:35:10,020 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:35:10,021 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 01:35:10,021 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-16 01:35:10,021 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-16 01:35:10,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:35:10,021 INFO L85 PathProgramCache]: Analyzing trace with hash -891627133, now seen corresponding path program 1 times [2021-12-16 01:35:10,022 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:35:10,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007877537] [2021-12-16 01:35:10,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:35:10,022 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:35:10,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:35:10,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:35:10,152 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:35:10,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007877537] [2021-12-16 01:35:10,152 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007877537] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:35:10,153 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:35:10,153 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 01:35:10,153 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256730291] [2021-12-16 01:35:10,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:35:10,153 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 01:35:10,154 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:35:10,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 01:35:10,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-16 01:35:10,154 INFO L87 Difference]: Start difference. First operand 909 states and 1236 transitions. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:35:11,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:35:11,497 INFO L93 Difference]: Finished difference Result 1834 states and 2559 transitions. [2021-12-16 01:35:11,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-16 01:35:11,499 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2021-12-16 01:35:11,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:35:11,502 INFO L225 Difference]: With dead ends: 1834 [2021-12-16 01:35:11,502 INFO L226 Difference]: Without dead ends: 1670 [2021-12-16 01:35:11,503 INFO L932 BasicCegarLoop]: 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 [2021-12-16 01:35:11,503 INFO L933 BasicCegarLoop]: 662 mSDtfsCounter, 3739 mSDsluCounter, 2736 mSDsCounter, 0 mSdLazyCounter, 2686 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3739 SdHoareTripleChecker+Valid, 3398 SdHoareTripleChecker+Invalid, 2783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 2686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-16 01:35:11,503 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3739 Valid, 3398 Invalid, 2783 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 2686 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-16 01:35:11,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1670 states. [2021-12-16 01:35:11,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1670 to 909. [2021-12-16 01:35:11,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 909 states, 887 states have (on average 1.391206313416009) internal successors, (1234), 908 states have internal predecessors, (1234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:35:11,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1234 transitions. [2021-12-16 01:35:11,589 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1234 transitions. Word has length 95 [2021-12-16 01:35:11,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:35:11,589 INFO L470 AbstractCegarLoop]: Abstraction has 909 states and 1234 transitions. [2021-12-16 01:35:11,589 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:35:11,589 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1234 transitions. [2021-12-16 01:35:11,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-16 01:35:11,590 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:35:11,591 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 01:35:11,591 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-12-16 01:35:11,591 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-16 01:35:11,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:35:11,591 INFO L85 PathProgramCache]: Analyzing trace with hash -482781905, now seen corresponding path program 1 times [2021-12-16 01:35:11,592 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:35:11,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819510623] [2021-12-16 01:35:11,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:35:11,592 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:35:11,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:35:11,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:35:11,692 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:35:11,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819510623] [2021-12-16 01:35:11,692 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819510623] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:35:11,693 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:35:11,693 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 01:35:11,694 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570401671] [2021-12-16 01:35:11,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:35:11,694 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 01:35:11,694 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:35:11,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 01:35:11,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-16 01:35:11,695 INFO L87 Difference]: Start difference. First operand 909 states and 1234 transitions. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:35:12,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:35:12,940 INFO L93 Difference]: Finished difference Result 1892 states and 2639 transitions. [2021-12-16 01:35:12,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-16 01:35:12,941 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2021-12-16 01:35:12,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:35:12,944 INFO L225 Difference]: With dead ends: 1892 [2021-12-16 01:35:12,944 INFO L226 Difference]: Without dead ends: 1702 [2021-12-16 01:35:12,945 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-16 01:35:12,945 INFO L933 BasicCegarLoop]: 784 mSDtfsCounter, 3845 mSDsluCounter, 2371 mSDsCounter, 0 mSdLazyCounter, 2441 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3845 SdHoareTripleChecker+Valid, 3155 SdHoareTripleChecker+Invalid, 2505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 2441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-16 01:35:12,946 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3845 Valid, 3155 Invalid, 2505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 2441 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-16 01:35:12,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1702 states. [2021-12-16 01:35:13,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1702 to 909. [2021-12-16 01:35:13,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 909 states, 887 states have (on average 1.3889515219842166) internal successors, (1232), 908 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:35:13,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1232 transitions. [2021-12-16 01:35:13,029 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1232 transitions. Word has length 95 [2021-12-16 01:35:13,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:35:13,029 INFO L470 AbstractCegarLoop]: Abstraction has 909 states and 1232 transitions. [2021-12-16 01:35:13,030 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:35:13,030 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1232 transitions. [2021-12-16 01:35:13,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-16 01:35:13,031 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:35:13,032 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 01:35:13,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-12-16 01:35:13,032 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-16 01:35:13,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:35:13,032 INFO L85 PathProgramCache]: Analyzing trace with hash 1112928597, now seen corresponding path program 1 times [2021-12-16 01:35:13,033 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:35:13,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856465753] [2021-12-16 01:35:13,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:35:13,033 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:35:13,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:35:13,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:35:13,199 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:35:13,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856465753] [2021-12-16 01:35:13,199 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856465753] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:35:13,200 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:35:13,200 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-16 01:35:13,200 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137743614] [2021-12-16 01:35:13,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:35:13,200 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-16 01:35:13,201 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:35:13,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-16 01:35:13,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-16 01:35:13,201 INFO L87 Difference]: Start difference. First operand 909 states and 1232 transitions. Second operand has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:35:15,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:35:15,487 INFO L93 Difference]: Finished difference Result 2720 states and 3866 transitions. [2021-12-16 01:35:15,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-16 01:35:15,487 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2021-12-16 01:35:15,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:35:15,491 INFO L225 Difference]: With dead ends: 2720 [2021-12-16 01:35:15,491 INFO L226 Difference]: Without dead ends: 2562 [2021-12-16 01:35:15,491 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-16 01:35:15,492 INFO L933 BasicCegarLoop]: 722 mSDtfsCounter, 6001 mSDsluCounter, 2866 mSDsCounter, 0 mSdLazyCounter, 2951 mSolverCounterSat, 628 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6001 SdHoareTripleChecker+Valid, 3588 SdHoareTripleChecker+Invalid, 3579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 628 IncrementalHoareTripleChecker+Valid, 2951 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-16 01:35:15,492 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6001 Valid, 3588 Invalid, 3579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [628 Valid, 2951 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-16 01:35:15,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2562 states. [2021-12-16 01:35:15,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2562 to 913. [2021-12-16 01:35:15,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 913 states, 891 states have (on average 1.387205387205387) internal successors, (1236), 912 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:35:15,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 913 states to 913 states and 1236 transitions. [2021-12-16 01:35:15,578 INFO L78 Accepts]: Start accepts. Automaton has 913 states and 1236 transitions. Word has length 95 [2021-12-16 01:35:15,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:35:15,578 INFO L470 AbstractCegarLoop]: Abstraction has 913 states and 1236 transitions. [2021-12-16 01:35:15,578 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:35:15,578 INFO L276 IsEmpty]: Start isEmpty. Operand 913 states and 1236 transitions. [2021-12-16 01:35:15,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-16 01:35:15,580 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:35:15,580 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 01:35:15,580 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-12-16 01:35:15,580 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-16 01:35:15,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:35:15,581 INFO L85 PathProgramCache]: Analyzing trace with hash -738270563, now seen corresponding path program 1 times [2021-12-16 01:35:15,581 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:35:15,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241062771] [2021-12-16 01:35:15,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:35:15,582 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:35:15,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:35:15,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:35:15,704 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:35:15,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241062771] [2021-12-16 01:35:15,704 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241062771] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:35:15,704 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:35:15,704 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 01:35:15,705 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558223367] [2021-12-16 01:35:15,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:35:15,705 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 01:35:15,705 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:35:15,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 01:35:15,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-16 01:35:15,706 INFO L87 Difference]: Start difference. First operand 913 states and 1236 transitions. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:35:17,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:35:17,056 INFO L93 Difference]: Finished difference Result 1824 states and 2542 transitions. [2021-12-16 01:35:17,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-16 01:35:17,057 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2021-12-16 01:35:17,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:35:17,059 INFO L225 Difference]: With dead ends: 1824 [2021-12-16 01:35:17,059 INFO L226 Difference]: Without dead ends: 1670 [2021-12-16 01:35:17,059 INFO L932 BasicCegarLoop]: 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 [2021-12-16 01:35:17,060 INFO L933 BasicCegarLoop]: 630 mSDtfsCounter, 3794 mSDsluCounter, 2644 mSDsCounter, 0 mSdLazyCounter, 2536 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3794 SdHoareTripleChecker+Valid, 3274 SdHoareTripleChecker+Invalid, 2634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 2536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-16 01:35:17,060 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3794 Valid, 3274 Invalid, 2634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 2536 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-16 01:35:17,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1670 states. [2021-12-16 01:35:17,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1670 to 913. [2021-12-16 01:35:17,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 913 states, 891 states have (on average 1.3860830527497194) internal successors, (1235), 912 states have internal predecessors, (1235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:35:17,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 913 states to 913 states and 1235 transitions. [2021-12-16 01:35:17,133 INFO L78 Accepts]: Start accepts. Automaton has 913 states and 1235 transitions. Word has length 95 [2021-12-16 01:35:17,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:35:17,133 INFO L470 AbstractCegarLoop]: Abstraction has 913 states and 1235 transitions. [2021-12-16 01:35:17,133 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:35:17,133 INFO L276 IsEmpty]: Start isEmpty. Operand 913 states and 1235 transitions. [2021-12-16 01:35:17,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-16 01:35:17,134 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:35:17,135 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 01:35:17,135 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-12-16 01:35:17,135 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-16 01:35:17,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:35:17,135 INFO L85 PathProgramCache]: Analyzing trace with hash 1153671650, now seen corresponding path program 1 times [2021-12-16 01:35:17,136 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:35:17,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887351721] [2021-12-16 01:35:17,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:35:17,136 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:35:17,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:35:17,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:35:17,241 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:35:17,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887351721] [2021-12-16 01:35:17,241 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887351721] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:35:17,242 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:35:17,242 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 01:35:17,242 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789185363] [2021-12-16 01:35:17,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:35:17,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 01:35:17,243 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:35:17,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 01:35:17,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-16 01:35:17,244 INFO L87 Difference]: Start difference. First operand 913 states and 1235 transitions. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:35:18,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:35:18,413 INFO L93 Difference]: Finished difference Result 1886 states and 2624 transitions. [2021-12-16 01:35:18,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-16 01:35:18,413 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2021-12-16 01:35:18,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:35:18,415 INFO L225 Difference]: With dead ends: 1886 [2021-12-16 01:35:18,415 INFO L226 Difference]: Without dead ends: 1706 [2021-12-16 01:35:18,416 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-16 01:35:18,416 INFO L933 BasicCegarLoop]: 784 mSDtfsCounter, 2105 mSDsluCounter, 2316 mSDsCounter, 0 mSdLazyCounter, 2382 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2105 SdHoareTripleChecker+Valid, 3100 SdHoareTripleChecker+Invalid, 2416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 2382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-16 01:35:18,416 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2105 Valid, 3100 Invalid, 2416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 2382 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-16 01:35:18,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1706 states. [2021-12-16 01:35:18,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1706 to 913. [2021-12-16 01:35:18,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 913 states, 891 states have (on average 1.3849607182940515) internal successors, (1234), 912 states have internal predecessors, (1234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:35:18,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 913 states to 913 states and 1234 transitions. [2021-12-16 01:35:18,483 INFO L78 Accepts]: Start accepts. Automaton has 913 states and 1234 transitions. Word has length 95 [2021-12-16 01:35:18,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:35:18,483 INFO L470 AbstractCegarLoop]: Abstraction has 913 states and 1234 transitions. [2021-12-16 01:35:18,483 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:35:18,483 INFO L276 IsEmpty]: Start isEmpty. Operand 913 states and 1234 transitions. [2021-12-16 01:35:18,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-16 01:35:18,485 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:35:18,485 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 01:35:18,485 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-12-16 01:35:18,485 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-16 01:35:18,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:35:18,486 INFO L85 PathProgramCache]: Analyzing trace with hash 744826422, now seen corresponding path program 1 times [2021-12-16 01:35:18,486 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:35:18,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358399878] [2021-12-16 01:35:18,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:35:18,487 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:35:18,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:35:18,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:35:18,599 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:35:18,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358399878] [2021-12-16 01:35:18,599 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358399878] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:35:18,599 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:35:18,599 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 01:35:18,600 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27039421] [2021-12-16 01:35:18,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:35:18,600 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 01:35:18,600 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:35:18,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 01:35:18,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-16 01:35:18,601 INFO L87 Difference]: Start difference. First operand 913 states and 1234 transitions. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:35:19,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:35:19,981 INFO L93 Difference]: Finished difference Result 1828 states and 2544 transitions. [2021-12-16 01:35:19,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-16 01:35:19,981 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2021-12-16 01:35:19,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:35:19,984 INFO L225 Difference]: With dead ends: 1828 [2021-12-16 01:35:19,984 INFO L226 Difference]: Without dead ends: 1670 [2021-12-16 01:35:19,985 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-16 01:35:19,985 INFO L933 BasicCegarLoop]: 707 mSDtfsCounter, 3651 mSDsluCounter, 2869 mSDsCounter, 0 mSdLazyCounter, 2768 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3651 SdHoareTripleChecker+Valid, 3576 SdHoareTripleChecker+Invalid, 2863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 2768 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-16 01:35:19,986 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3651 Valid, 3576 Invalid, 2863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 2768 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-16 01:35:19,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1670 states. [2021-12-16 01:35:20,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1670 to 913. [2021-12-16 01:35:20,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 913 states, 891 states have (on average 1.3838383838383839) internal successors, (1233), 912 states have internal predecessors, (1233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:35:20,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 913 states to 913 states and 1233 transitions. [2021-12-16 01:35:20,075 INFO L78 Accepts]: Start accepts. Automaton has 913 states and 1233 transitions. Word has length 95 [2021-12-16 01:35:20,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:35:20,075 INFO L470 AbstractCegarLoop]: Abstraction has 913 states and 1233 transitions. [2021-12-16 01:35:20,075 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:35:20,075 INFO L276 IsEmpty]: Start isEmpty. Operand 913 states and 1233 transitions. [2021-12-16 01:35:20,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-16 01:35:20,076 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:35:20,076 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 01:35:20,077 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-12-16 01:35:20,077 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-16 01:35:20,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:35:20,077 INFO L85 PathProgramCache]: Analyzing trace with hash -1037319048, now seen corresponding path program 1 times [2021-12-16 01:35:20,077 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:35:20,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280205595] [2021-12-16 01:35:20,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:35:20,078 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:35:20,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:35:20,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:35:20,244 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:35:20,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280205595] [2021-12-16 01:35:20,244 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280205595] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:35:20,244 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:35:20,244 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-16 01:35:20,245 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298602198] [2021-12-16 01:35:20,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:35:20,245 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-16 01:35:20,245 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:35:20,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-16 01:35:20,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-16 01:35:20,246 INFO L87 Difference]: Start difference. First operand 913 states and 1233 transitions. Second operand has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:35:22,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:35:22,565 INFO L93 Difference]: Finished difference Result 2712 states and 3854 transitions. [2021-12-16 01:35:22,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-16 01:35:22,566 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2021-12-16 01:35:22,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:35:22,570 INFO L225 Difference]: With dead ends: 2712 [2021-12-16 01:35:22,570 INFO L226 Difference]: Without dead ends: 2558 [2021-12-16 01:35:22,571 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-16 01:35:22,571 INFO L933 BasicCegarLoop]: 735 mSDtfsCounter, 5971 mSDsluCounter, 2510 mSDsCounter, 0 mSdLazyCounter, 2656 mSolverCounterSat, 623 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5971 SdHoareTripleChecker+Valid, 3245 SdHoareTripleChecker+Invalid, 3279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 623 IncrementalHoareTripleChecker+Valid, 2656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-16 01:35:22,571 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5971 Valid, 3245 Invalid, 3279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [623 Valid, 2656 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-16 01:35:22,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2558 states. [2021-12-16 01:35:22,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2558 to 917. [2021-12-16 01:35:22,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 917 states, 895 states have (on average 1.382122905027933) internal successors, (1237), 916 states have internal predecessors, (1237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:35:22,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 1237 transitions. [2021-12-16 01:35:22,682 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 1237 transitions. Word has length 95 [2021-12-16 01:35:22,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:35:22,684 INFO L470 AbstractCegarLoop]: Abstraction has 917 states and 1237 transitions. [2021-12-16 01:35:22,684 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:35:22,684 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 1237 transitions. [2021-12-16 01:35:22,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-16 01:35:22,686 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:35:22,686 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 01:35:22,686 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-12-16 01:35:22,686 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-16 01:35:22,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:35:22,687 INFO L85 PathProgramCache]: Analyzing trace with hash -359034935, now seen corresponding path program 1 times [2021-12-16 01:35:22,687 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:35:22,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778360806] [2021-12-16 01:35:22,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:35:22,687 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:35:22,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:35:22,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:35:22,808 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:35:22,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778360806] [2021-12-16 01:35:22,809 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778360806] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:35:22,809 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:35:22,809 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 01:35:22,809 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023669946] [2021-12-16 01:35:22,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:35:22,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 01:35:22,810 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:35:22,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 01:35:22,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-16 01:35:22,811 INFO L87 Difference]: Start difference. First operand 917 states and 1237 transitions. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:35:24,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:35:24,178 INFO L93 Difference]: Finished difference Result 1822 states and 2536 transitions. [2021-12-16 01:35:24,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-16 01:35:24,179 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2021-12-16 01:35:24,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:35:24,182 INFO L225 Difference]: With dead ends: 1822 [2021-12-16 01:35:24,182 INFO L226 Difference]: Without dead ends: 1670 [2021-12-16 01:35:24,183 INFO L932 BasicCegarLoop]: 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 [2021-12-16 01:35:24,183 INFO L933 BasicCegarLoop]: 647 mSDtfsCounter, 3749 mSDsluCounter, 2696 mSDsCounter, 0 mSdLazyCounter, 2561 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3749 SdHoareTripleChecker+Valid, 3343 SdHoareTripleChecker+Invalid, 2658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 2561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-16 01:35:24,184 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3749 Valid, 3343 Invalid, 2658 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 2561 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-16 01:35:24,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1670 states. [2021-12-16 01:35:24,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1670 to 917. [2021-12-16 01:35:24,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 917 states, 895 states have (on average 1.3810055865921789) internal successors, (1236), 916 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:35:24,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 1236 transitions. [2021-12-16 01:35:24,293 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 1236 transitions. Word has length 95 [2021-12-16 01:35:24,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:35:24,293 INFO L470 AbstractCegarLoop]: Abstraction has 917 states and 1236 transitions. [2021-12-16 01:35:24,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:35:24,294 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 1236 transitions. [2021-12-16 01:35:24,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-16 01:35:24,295 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:35:24,295 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 01:35:24,296 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-12-16 01:35:24,296 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-16 01:35:24,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:35:24,296 INFO L85 PathProgramCache]: Analyzing trace with hash 1152638694, now seen corresponding path program 1 times [2021-12-16 01:35:24,296 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:35:24,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16021957] [2021-12-16 01:35:24,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:35:24,297 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:35:24,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:35:24,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:35:24,468 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:35:24,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16021957] [2021-12-16 01:35:24,469 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16021957] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:35:24,469 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:35:24,469 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-16 01:35:24,469 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262294314] [2021-12-16 01:35:24,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:35:24,469 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-16 01:35:24,469 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:35:24,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-16 01:35:24,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-16 01:35:24,470 INFO L87 Difference]: Start difference. First operand 917 states and 1236 transitions. Second operand has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:35:26,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:35:26,911 INFO L93 Difference]: Finished difference Result 2720 states and 3858 transitions. [2021-12-16 01:35:26,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-16 01:35:26,911 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2021-12-16 01:35:26,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:35:26,914 INFO L225 Difference]: With dead ends: 2720 [2021-12-16 01:35:26,915 INFO L226 Difference]: Without dead ends: 2562 [2021-12-16 01:35:26,915 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-16 01:35:26,916 INFO L933 BasicCegarLoop]: 733 mSDtfsCounter, 7062 mSDsluCounter, 3216 mSDsCounter, 0 mSdLazyCounter, 3203 mSolverCounterSat, 738 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7062 SdHoareTripleChecker+Valid, 3949 SdHoareTripleChecker+Invalid, 3941 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 738 IncrementalHoareTripleChecker+Valid, 3203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-16 01:35:26,916 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7062 Valid, 3949 Invalid, 3941 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [738 Valid, 3203 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-16 01:35:26,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2562 states. [2021-12-16 01:35:27,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2562 to 921. [2021-12-16 01:35:27,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 921 states, 899 states have (on average 1.3793103448275863) internal successors, (1240), 920 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:35:27,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1240 transitions. [2021-12-16 01:35:27,031 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1240 transitions. Word has length 95 [2021-12-16 01:35:27,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:35:27,032 INFO L470 AbstractCegarLoop]: Abstraction has 921 states and 1240 transitions. [2021-12-16 01:35:27,032 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:35:27,032 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1240 transitions. [2021-12-16 01:35:27,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-16 01:35:27,033 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:35:27,033 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 01:35:27,034 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-12-16 01:35:27,034 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-16 01:35:27,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:35:27,034 INFO L85 PathProgramCache]: Analyzing trace with hash -698776940, now seen corresponding path program 1 times [2021-12-16 01:35:27,034 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:35:27,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111078198] [2021-12-16 01:35:27,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:35:27,035 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:35:27,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:35:27,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:35:27,165 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:35:27,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111078198] [2021-12-16 01:35:27,165 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111078198] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:35:27,165 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:35:27,165 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 01:35:27,165 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356523896] [2021-12-16 01:35:27,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:35:27,166 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 01:35:27,166 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:35:27,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 01:35:27,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-16 01:35:27,167 INFO L87 Difference]: Start difference. First operand 921 states and 1240 transitions. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:35:28,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:35:28,558 INFO L93 Difference]: Finished difference Result 1824 states and 2536 transitions. [2021-12-16 01:35:28,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-16 01:35:28,559 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2021-12-16 01:35:28,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:35:28,565 INFO L225 Difference]: With dead ends: 1824 [2021-12-16 01:35:28,565 INFO L226 Difference]: Without dead ends: 1670 [2021-12-16 01:35:28,566 INFO L932 BasicCegarLoop]: 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 [2021-12-16 01:35:28,567 INFO L933 BasicCegarLoop]: 639 mSDtfsCounter, 3760 mSDsluCounter, 2672 mSDsCounter, 0 mSdLazyCounter, 2524 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3760 SdHoareTripleChecker+Valid, 3311 SdHoareTripleChecker+Invalid, 2621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 2524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-16 01:35:28,568 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3760 Valid, 3311 Invalid, 2621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 2524 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-16 01:35:28,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1670 states. [2021-12-16 01:35:28,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1670 to 921. [2021-12-16 01:35:28,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 921 states, 899 states have (on average 1.3781979977753058) internal successors, (1239), 920 states have internal predecessors, (1239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:35:28,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1239 transitions. [2021-12-16 01:35:28,690 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1239 transitions. Word has length 95 [2021-12-16 01:35:28,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:35:28,691 INFO L470 AbstractCegarLoop]: Abstraction has 921 states and 1239 transitions. [2021-12-16 01:35:28,691 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:35:28,691 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1239 transitions. [2021-12-16 01:35:28,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-12-16 01:35:28,692 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:35:28,693 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 01:35:28,693 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-12-16 01:35:28,693 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-16 01:35:28,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:35:28,695 INFO L85 PathProgramCache]: Analyzing trace with hash 1717932859, now seen corresponding path program 1 times [2021-12-16 01:35:28,695 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:35:28,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769112754] [2021-12-16 01:35:28,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:35:28,696 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:35:28,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:35:28,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:35:28,796 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:35:28,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769112754] [2021-12-16 01:35:28,797 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769112754] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:35:28,797 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:35:28,797 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 01:35:28,798 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587415202] [2021-12-16 01:35:28,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:35:28,798 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 01:35:28,798 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:35:28,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 01:35:28,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-16 01:35:28,799 INFO L87 Difference]: Start difference. First operand 921 states and 1239 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:35:30,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:35:30,047 INFO L93 Difference]: Finished difference Result 1834 states and 2547 transitions. [2021-12-16 01:35:30,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-16 01:35:30,047 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-12-16 01:35:30,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:35:30,049 INFO L225 Difference]: With dead ends: 1834 [2021-12-16 01:35:30,049 INFO L226 Difference]: Without dead ends: 1670 [2021-12-16 01:35:30,050 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-16 01:35:30,050 INFO L933 BasicCegarLoop]: 707 mSDtfsCounter, 3054 mSDsluCounter, 2165 mSDsCounter, 0 mSdLazyCounter, 2240 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3054 SdHoareTripleChecker+Valid, 2872 SdHoareTripleChecker+Invalid, 2328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 2240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-16 01:35:30,051 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3054 Valid, 2872 Invalid, 2328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 2240 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-16 01:35:30,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1670 states. [2021-12-16 01:35:30,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1670 to 913. [2021-12-16 01:35:30,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 913 states, 891 states have (on average 1.3793490460157127) internal successors, (1229), 912 states have internal predecessors, (1229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:35:30,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 913 states to 913 states and 1229 transitions. [2021-12-16 01:35:30,161 INFO L78 Accepts]: Start accepts. Automaton has 913 states and 1229 transitions. Word has length 96 [2021-12-16 01:35:30,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:35:30,161 INFO L470 AbstractCegarLoop]: Abstraction has 913 states and 1229 transitions. [2021-12-16 01:35:30,162 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:35:30,162 INFO L276 IsEmpty]: Start isEmpty. Operand 913 states and 1229 transitions. [2021-12-16 01:35:30,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-12-16 01:35:30,163 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:35:30,163 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 01:35:30,163 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-12-16 01:35:30,163 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-16 01:35:30,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:35:30,163 INFO L85 PathProgramCache]: Analyzing trace with hash 908385995, now seen corresponding path program 1 times [2021-12-16 01:35:30,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:35:30,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190463966] [2021-12-16 01:35:30,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:35:30,164 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:35:30,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:35:30,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:35:30,255 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:35:30,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190463966] [2021-12-16 01:35:30,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190463966] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:35:30,256 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:35:30,256 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 01:35:30,256 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175599405] [2021-12-16 01:35:30,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:35:30,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 01:35:30,256 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:35:30,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 01:35:30,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-16 01:35:30,257 INFO L87 Difference]: Start difference. First operand 913 states and 1229 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)