./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e19ca921 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-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 ea86972a210f89fc9e3e5afc5e01f00ca5c135dc207351adf2f98bafbd9a008a --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 12:14:35,977 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 12:14:35,979 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 12:14:36,033 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 12:14:36,033 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 12:14:36,035 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 12:14:36,052 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 12:14:36,054 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 12:14:36,055 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 12:14:36,058 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 12:14:36,059 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 12:14:36,060 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 12:14:36,060 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 12:14:36,062 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 12:14:36,063 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 12:14:36,065 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 12:14:36,066 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 12:14:36,067 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 12:14:36,068 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 12:14:36,072 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 12:14:36,073 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 12:14:36,073 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 12:14:36,074 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 12:14:36,075 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 12:14:36,079 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 12:14:36,080 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 12:14:36,080 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 12:14:36,081 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 12:14:36,095 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 12:14:36,096 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 12:14:36,096 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 12:14:36,097 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 12:14:36,098 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 12:14:36,099 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 12:14:36,099 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 12:14:36,100 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 12:14:36,100 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 12:14:36,101 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 12:14:36,101 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 12:14:36,102 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 12:14:36,102 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 12:14:36,103 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-22 12:14:36,136 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 12:14:36,136 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 12:14:36,136 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 12:14:36,137 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 12:14:36,137 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 12:14:36,137 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 12:14:36,138 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 12:14:36,138 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 12:14:36,138 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 12:14:36,138 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 12:14:36,139 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-22 12:14:36,139 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 12:14:36,139 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-22 12:14:36,139 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 12:14:36,139 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 12:14:36,140 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 12:14:36,140 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 12:14:36,140 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-22 12:14:36,140 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 12:14:36,140 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 12:14:36,140 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 12:14:36,140 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 12:14:36,155 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 12:14:36,155 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 12:14:36,155 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 12:14:36,156 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 12:14:36,156 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 12:14:36,156 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 12:14:36,156 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 12:14:36,156 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-22 12:14:36,156 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-22 12:14:36,157 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-22 12:14:36,157 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 12:14:36,157 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 12:14:36,157 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ea86972a210f89fc9e3e5afc5e01f00ca5c135dc207351adf2f98bafbd9a008a [2021-12-22 12:14:36,508 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 12:14:36,523 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 12:14:36,525 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 12:14:36,525 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 12:14:36,526 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 12:14:36,526 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2021-12-22 12:14:36,566 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9e15632c/dc2f43b354e04f5588ddcdf0cf79d63b/FLAG24494bb95 [2021-12-22 12:14:37,342 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 12:14:37,343 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2021-12-22 12:14:37,403 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9e15632c/dc2f43b354e04f5588ddcdf0cf79d63b/FLAG24494bb95 [2021-12-22 12:14:37,602 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9e15632c/dc2f43b354e04f5588ddcdf0cf79d63b [2021-12-22 12:14:37,604 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 12:14:37,605 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 12:14:37,608 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 12:14:37,608 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 12:14:37,610 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 12:14:37,611 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 12:14:37" (1/1) ... [2021-12-22 12:14:37,611 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a7ea6c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:14:37, skipping insertion in model container [2021-12-22 12:14:37,612 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 12:14:37" (1/1) ... [2021-12-22 12:14:37,616 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 12:14:37,880 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 12:14:38,772 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[147376,147389] [2021-12-22 12:14:38,899 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[216640,216653] [2021-12-22 12:14:38,972 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[251269,251282] [2021-12-22 12:14:39,003 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[268618,268631] [2021-12-22 12:14:39,018 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[277293,277306] [2021-12-22 12:14:39,026 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[281602,281615] [2021-12-22 12:14:39,034 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[285742,285755] [2021-12-22 12:14:39,138 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[353833,353846] [2021-12-22 12:14:39,204 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[387694,387707] [2021-12-22 12:14:39,231 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[404802,404815] [2021-12-22 12:14:39,246 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[413481,413494] [2021-12-22 12:14:39,254 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[417791,417804] [2021-12-22 12:14:39,262 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[421932,421945] [2021-12-22 12:14:39,314 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[456014,456027] [2021-12-22 12:14:39,341 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[473125,473138] [2021-12-22 12:14:39,355 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[481792,481805] [2021-12-22 12:14:39,363 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[486086,486099] [2021-12-22 12:14:39,370 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[490211,490224] [2021-12-22 12:14:39,434 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[508509,508522] [2021-12-22 12:14:39,448 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[517152,517165] [2021-12-22 12:14:39,456 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[521446,521459] [2021-12-22 12:14:39,464 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[525571,525584] [2021-12-22 12:14:39,472 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[530444,530457] [2021-12-22 12:14:39,480 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[534605,534618] [2021-12-22 12:14:39,487 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[538899,538912] [2021-12-22 12:14:39,495 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[543024,543037] [2021-12-22 12:14:39,502 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[547518,547531] [2021-12-22 12:14:39,511 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[551659,551672] [2021-12-22 12:14:39,519 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[555964,555977] [2021-12-22 12:14:39,556 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 12:14:39,569 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 12:14:40,175 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[147376,147389] [2021-12-22 12:14:40,282 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[216640,216653] [2021-12-22 12:14:40,337 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[251269,251282] [2021-12-22 12:14:40,365 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[268618,268631] [2021-12-22 12:14:40,379 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[277293,277306] [2021-12-22 12:14:40,387 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[281602,281615] [2021-12-22 12:14:40,394 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[285742,285755] [2021-12-22 12:14:40,490 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[353833,353846] [2021-12-22 12:14:40,539 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[387694,387707] [2021-12-22 12:14:40,565 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[404802,404815] [2021-12-22 12:14:40,582 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[413481,413494] [2021-12-22 12:14:40,590 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[417791,417804] [2021-12-22 12:14:40,598 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[421932,421945] [2021-12-22 12:14:40,648 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[456014,456027] [2021-12-22 12:14:40,674 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[473125,473138] [2021-12-22 12:14:40,689 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[481792,481805] [2021-12-22 12:14:40,696 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[486086,486099] [2021-12-22 12:14:40,741 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[490211,490224] [2021-12-22 12:14:40,772 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[508509,508522] [2021-12-22 12:14:40,786 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[517152,517165] [2021-12-22 12:14:40,793 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[521446,521459] [2021-12-22 12:14:40,800 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[525571,525584] [2021-12-22 12:14:40,807 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[530444,530457] [2021-12-22 12:14:40,814 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[534605,534618] [2021-12-22 12:14:40,821 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[538899,538912] [2021-12-22 12:14:40,828 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[543024,543037] [2021-12-22 12:14:40,835 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[547518,547531] [2021-12-22 12:14:40,841 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[551659,551672] [2021-12-22 12:14:40,848 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.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[555964,555977] [2021-12-22 12:14:40,877 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 12:14:40,907 INFO L208 MainTranslator]: Completed translation [2021-12-22 12:14:40,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:14:40 WrapperNode [2021-12-22 12:14:40,908 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 12:14:40,909 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 12:14:40,909 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 12:14:40,910 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 12:14:40,915 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:14:40" (1/1) ... [2021-12-22 12:14:41,010 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:14:40" (1/1) ... [2021-12-22 12:14:41,307 INFO L137 Inliner]: procedures = 27, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 24436 [2021-12-22 12:14:41,308 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 12:14:41,309 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 12:14:41,309 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 12:14:41,309 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 12:14:41,315 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:14:40" (1/1) ... [2021-12-22 12:14:41,315 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:14:40" (1/1) ... [2021-12-22 12:14:41,356 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:14:40" (1/1) ... [2021-12-22 12:14:41,356 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:14:40" (1/1) ... [2021-12-22 12:14:41,463 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:14:40" (1/1) ... [2021-12-22 12:14:41,554 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:14:40" (1/1) ... [2021-12-22 12:14:41,582 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:14:40" (1/1) ... [2021-12-22 12:14:41,786 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 12:14:41,788 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 12:14:41,788 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 12:14:41,788 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 12:14:41,789 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:14:40" (1/1) ... [2021-12-22 12:14:41,794 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 12:14:41,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 12:14:41,829 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) [2021-12-22 12:14:41,875 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 [2021-12-22 12:14:41,917 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 12:14:41,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 12:14:41,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 12:14:41,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 12:14:42,437 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 12:14:42,438 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 12:14:49,103 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 12:14:49,143 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 12:14:49,144 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-22 12:14:49,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 12:14:49 BoogieIcfgContainer [2021-12-22 12:14:49,148 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 12:14:49,149 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 12:14:49,149 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 12:14:49,152 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 12:14:49,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 12:14:37" (1/3) ... [2021-12-22 12:14:49,153 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@401c2041 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 12:14:49, skipping insertion in model container [2021-12-22 12:14:49,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:14:40" (2/3) ... [2021-12-22 12:14:49,153 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@401c2041 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 12:14:49, skipping insertion in model container [2021-12-22 12:14:49,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 12:14:49" (3/3) ... [2021-12-22 12:14:49,154 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2021-12-22 12:14:49,157 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 12:14:49,158 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 29 error locations. [2021-12-22 12:14:49,202 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 12:14:49,208 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 [2021-12-22 12:14:49,208 INFO L340 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2021-12-22 12:14:49,352 INFO L276 IsEmpty]: Start isEmpty. Operand has 5023 states, 4993 states have (on average 1.8155417584618465) internal successors, (9065), 5022 states have internal predecessors, (9065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:14:49,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-12-22 12:14:49,379 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 12:14:49,380 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, 1, 1, 1, 1, 1] [2021-12-22 12:14:49,381 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-22 12:14:49,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 12:14:49,386 INFO L85 PathProgramCache]: Analyzing trace with hash 1176206024, now seen corresponding path program 1 times [2021-12-22 12:14:49,392 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 12:14:49,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243714257] [2021-12-22 12:14:49,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 12:14:49,394 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 12:14:49,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:14:49,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 12:14:49,731 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 12:14:49,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243714257] [2021-12-22 12:14:49,732 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243714257] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 12:14:49,732 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 12:14:49,733 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 12:14:49,734 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532006297] [2021-12-22 12:14:49,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 12:14:49,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 12:14:49,738 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 12:14:49,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 12:14:49,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 12:14:49,774 INFO L87 Difference]: Start difference. First operand has 5023 states, 4993 states have (on average 1.8155417584618465) internal successors, (9065), 5022 states have internal predecessors, (9065), 0 states have call successors, (0), 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 20.2) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:14:52,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 12:14:52,066 INFO L93 Difference]: Finished difference Result 5555 states and 9914 transitions. [2021-12-22 12:14:52,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 12:14:52,068 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2021-12-22 12:14:52,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 12:14:52,098 INFO L225 Difference]: With dead ends: 5555 [2021-12-22 12:14:52,098 INFO L226 Difference]: Without dead ends: 3084 [2021-12-22 12:14:52,109 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 [2021-12-22 12:14:52,116 INFO L933 BasicCegarLoop]: 2876 mSDtfsCounter, 16161 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 2599 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16161 SdHoareTripleChecker+Valid, 2954 SdHoareTripleChecker+Invalid, 2716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 2599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-12-22 12:14:52,117 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16161 Valid, 2954 Invalid, 2716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 2599 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-12-22 12:14:52,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3084 states. [2021-12-22 12:14:52,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3084 to 3084. [2021-12-22 12:14:52,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3084 states, 3055 states have (on average 1.3240589198036006) internal successors, (4045), 3083 states have internal predecessors, (4045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:14:52,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3084 states to 3084 states and 4045 transitions. [2021-12-22 12:14:52,251 INFO L78 Accepts]: Start accepts. Automaton has 3084 states and 4045 transitions. Word has length 101 [2021-12-22 12:14:52,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 12:14:52,251 INFO L470 AbstractCegarLoop]: Abstraction has 3084 states and 4045 transitions. [2021-12-22 12:14:52,252 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:14:52,252 INFO L276 IsEmpty]: Start isEmpty. Operand 3084 states and 4045 transitions. [2021-12-22 12:14:52,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-12-22 12:14:52,262 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 12:14:52,263 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, 1, 1, 1, 1, 1] [2021-12-22 12:14:52,263 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-22 12:14:52,263 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-22 12:14:52,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 12:14:52,265 INFO L85 PathProgramCache]: Analyzing trace with hash 2063346064, now seen corresponding path program 1 times [2021-12-22 12:14:52,265 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 12:14:52,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424778241] [2021-12-22 12:14:52,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 12:14:52,266 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 12:14:52,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:14:52,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 12:14:52,418 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 12:14:52,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424778241] [2021-12-22 12:14:52,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424778241] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 12:14:52,419 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 12:14:52,419 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 12:14:52,419 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80718056] [2021-12-22 12:14:52,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 12:14:52,420 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 12:14:52,420 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 12:14:52,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 12:14:52,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 12:14:52,421 INFO L87 Difference]: Start difference. First operand 3084 states and 4045 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:14:54,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 12:14:54,328 INFO L93 Difference]: Finished difference Result 4279 states and 5660 transitions. [2021-12-22 12:14:54,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 12:14:54,328 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2021-12-22 12:14:54,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 12:14:54,336 INFO L225 Difference]: With dead ends: 4279 [2021-12-22 12:14:54,336 INFO L226 Difference]: Without dead ends: 2828 [2021-12-22 12:14:54,337 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 [2021-12-22 12:14:54,341 INFO L933 BasicCegarLoop]: 1470 mSDtfsCounter, 10949 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 2288 mSolverCounterSat, 229 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10949 SdHoareTripleChecker+Valid, 1522 SdHoareTripleChecker+Invalid, 2517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 229 IncrementalHoareTripleChecker+Valid, 2288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-12-22 12:14:54,342 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10949 Valid, 1522 Invalid, 2517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [229 Valid, 2288 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-12-22 12:14:54,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2828 states. [2021-12-22 12:14:54,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2828 to 2828. [2021-12-22 12:14:54,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2828 states, 2799 states have (on average 1.3419078242229368) internal successors, (3756), 2827 states have internal predecessors, (3756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:14:54,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2828 states to 2828 states and 3756 transitions. [2021-12-22 12:14:54,402 INFO L78 Accepts]: Start accepts. Automaton has 2828 states and 3756 transitions. Word has length 101 [2021-12-22 12:14:54,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 12:14:54,404 INFO L470 AbstractCegarLoop]: Abstraction has 2828 states and 3756 transitions. [2021-12-22 12:14:54,404 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:14:54,404 INFO L276 IsEmpty]: Start isEmpty. Operand 2828 states and 3756 transitions. [2021-12-22 12:14:54,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-12-22 12:14:54,409 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 12:14:54,409 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, 1, 1, 1, 1, 1] [2021-12-22 12:14:54,410 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-22 12:14:54,410 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-22 12:14:54,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 12:14:54,410 INFO L85 PathProgramCache]: Analyzing trace with hash -299686269, now seen corresponding path program 1 times [2021-12-22 12:14:54,410 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 12:14:54,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154046066] [2021-12-22 12:14:54,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 12:14:54,411 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 12:14:54,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:14:54,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 12:14:54,540 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 12:14:54,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154046066] [2021-12-22 12:14:54,540 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154046066] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 12:14:54,540 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 12:14:54,540 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 12:14:54,540 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272474758] [2021-12-22 12:14:54,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 12:14:54,541 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 12:14:54,541 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 12:14:54,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 12:14:54,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 12:14:54,542 INFO L87 Difference]: Start difference. First operand 2828 states and 3756 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:14:56,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 12:14:56,547 INFO L93 Difference]: Finished difference Result 5057 states and 6783 transitions. [2021-12-22 12:14:56,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 12:14:56,547 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2021-12-22 12:14:56,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 12:14:56,557 INFO L225 Difference]: With dead ends: 5057 [2021-12-22 12:14:56,557 INFO L226 Difference]: Without dead ends: 3618 [2021-12-22 12:14:56,560 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 [2021-12-22 12:14:56,565 INFO L933 BasicCegarLoop]: 1463 mSDtfsCounter, 12954 mSDsluCounter, 723 mSDsCounter, 0 mSdLazyCounter, 2736 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12954 SdHoareTripleChecker+Valid, 2186 SdHoareTripleChecker+Invalid, 2825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 2736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-12-22 12:14:56,566 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12954 Valid, 2186 Invalid, 2825 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 2736 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-12-22 12:14:56,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3618 states. [2021-12-22 12:14:56,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3618 to 3468. [2021-12-22 12:14:56,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3468 states, 3439 states have (on average 1.3858679848793254) internal successors, (4766), 3467 states have internal predecessors, (4766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:14:56,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3468 states to 3468 states and 4766 transitions. [2021-12-22 12:14:56,677 INFO L78 Accepts]: Start accepts. Automaton has 3468 states and 4766 transitions. Word has length 101 [2021-12-22 12:14:56,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 12:14:56,679 INFO L470 AbstractCegarLoop]: Abstraction has 3468 states and 4766 transitions. [2021-12-22 12:14:56,679 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:14:56,679 INFO L276 IsEmpty]: Start isEmpty. Operand 3468 states and 4766 transitions. [2021-12-22 12:14:56,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-12-22 12:14:56,687 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 12:14:56,687 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, 1, 1, 1, 1, 1, 1] [2021-12-22 12:14:56,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-22 12:14:56,688 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-22 12:14:56,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 12:14:56,689 INFO L85 PathProgramCache]: Analyzing trace with hash 112654927, now seen corresponding path program 1 times [2021-12-22 12:14:56,689 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 12:14:56,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115988609] [2021-12-22 12:14:56,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 12:14:56,689 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 12:14:56,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:14:56,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 12:14:56,819 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 12:14:56,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115988609] [2021-12-22 12:14:56,819 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115988609] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 12:14:56,819 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 12:14:56,819 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 12:14:56,819 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348036050] [2021-12-22 12:14:56,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 12:14:56,820 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 12:14:56,820 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 12:14:56,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 12:14:56,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 12:14:56,821 INFO L87 Difference]: Start difference. First operand 3468 states and 4766 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:14:57,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 12:14:57,983 INFO L93 Difference]: Finished difference Result 4451 states and 6118 transitions. [2021-12-22 12:14:57,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 12:14:57,983 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2021-12-22 12:14:57,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 12:14:57,994 INFO L225 Difference]: With dead ends: 4451 [2021-12-22 12:14:57,995 INFO L226 Difference]: Without dead ends: 2694 [2021-12-22 12:14:57,997 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 [2021-12-22 12:14:57,999 INFO L933 BasicCegarLoop]: 1183 mSDtfsCounter, 7602 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 1401 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7602 SdHoareTripleChecker+Valid, 1211 SdHoareTripleChecker+Invalid, 1458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-22 12:14:58,000 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7602 Valid, 1211 Invalid, 1458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1401 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-22 12:14:58,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2694 states. [2021-12-22 12:14:58,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2694 to 2694. [2021-12-22 12:14:58,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2694 states, 2665 states have (on average 1.4041275797373358) internal successors, (3742), 2693 states have internal predecessors, (3742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:14:58,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2694 states to 2694 states and 3742 transitions. [2021-12-22 12:14:58,115 INFO L78 Accepts]: Start accepts. Automaton has 2694 states and 3742 transitions. Word has length 102 [2021-12-22 12:14:58,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 12:14:58,115 INFO L470 AbstractCegarLoop]: Abstraction has 2694 states and 3742 transitions. [2021-12-22 12:14:58,115 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:14:58,115 INFO L276 IsEmpty]: Start isEmpty. Operand 2694 states and 3742 transitions. [2021-12-22 12:14:58,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-12-22 12:14:58,119 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 12:14:58,119 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, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 12:14:58,120 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-22 12:14:58,120 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-22 12:14:58,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 12:14:58,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1353221859, now seen corresponding path program 1 times [2021-12-22 12:14:58,120 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 12:14:58,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906202012] [2021-12-22 12:14:58,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 12:14:58,121 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 12:14:58,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:14:58,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 12:14:58,229 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 12:14:58,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906202012] [2021-12-22 12:14:58,230 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906202012] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 12:14:58,230 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 12:14:58,230 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 12:14:58,230 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054522622] [2021-12-22 12:14:58,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 12:14:58,231 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 12:14:58,231 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 12:14:58,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 12:14:58,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 12:14:58,232 INFO L87 Difference]: Start difference. First operand 2694 states and 3742 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:14:59,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 12:14:59,409 INFO L93 Difference]: Finished difference Result 3892 states and 5415 transitions. [2021-12-22 12:14:59,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 12:14:59,410 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2021-12-22 12:14:59,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 12:14:59,434 INFO L225 Difference]: With dead ends: 3892 [2021-12-22 12:14:59,439 INFO L226 Difference]: Without dead ends: 2485 [2021-12-22 12:14:59,443 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 [2021-12-22 12:14:59,444 INFO L933 BasicCegarLoop]: 1128 mSDtfsCounter, 7040 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 1254 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7040 SdHoareTripleChecker+Valid, 1140 SdHoareTripleChecker+Invalid, 1284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-22 12:14:59,444 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7040 Valid, 1140 Invalid, 1284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1254 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-22 12:14:59,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2485 states. [2021-12-22 12:14:59,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2485 to 2485. [2021-12-22 12:14:59,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2485 states, 2456 states have (on average 1.416530944625407) internal successors, (3479), 2484 states have internal predecessors, (3479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:14:59,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2485 states to 2485 states and 3479 transitions. [2021-12-22 12:14:59,596 INFO L78 Accepts]: Start accepts. Automaton has 2485 states and 3479 transitions. Word has length 103 [2021-12-22 12:14:59,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 12:14:59,597 INFO L470 AbstractCegarLoop]: Abstraction has 2485 states and 3479 transitions. [2021-12-22 12:14:59,598 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:14:59,598 INFO L276 IsEmpty]: Start isEmpty. Operand 2485 states and 3479 transitions. [2021-12-22 12:14:59,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-12-22 12:14:59,602 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 12:14:59,603 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 12:14:59,603 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-22 12:14:59,603 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-22 12:14:59,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 12:14:59,604 INFO L85 PathProgramCache]: Analyzing trace with hash -1882555602, now seen corresponding path program 1 times [2021-12-22 12:14:59,604 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 12:14:59,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056514030] [2021-12-22 12:14:59,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 12:14:59,605 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 12:14:59,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:14:59,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 12:14:59,696 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 12:14:59,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056514030] [2021-12-22 12:14:59,696 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056514030] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 12:14:59,696 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 12:14:59,696 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 12:14:59,696 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020355640] [2021-12-22 12:14:59,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 12:14:59,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 12:14:59,697 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 12:14:59,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 12:14:59,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 12:14:59,697 INFO L87 Difference]: Start difference. First operand 2485 states and 3479 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:01,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 12:15:01,084 INFO L93 Difference]: Finished difference Result 3587 states and 5018 transitions. [2021-12-22 12:15:01,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 12:15:01,085 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2021-12-22 12:15:01,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 12:15:01,091 INFO L225 Difference]: With dead ends: 3587 [2021-12-22 12:15:01,091 INFO L226 Difference]: Without dead ends: 2286 [2021-12-22 12:15:01,112 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 [2021-12-22 12:15:01,113 INFO L933 BasicCegarLoop]: 1057 mSDtfsCounter, 6465 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 1137 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6465 SdHoareTripleChecker+Valid, 1077 SdHoareTripleChecker+Invalid, 1167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-22 12:15:01,113 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6465 Valid, 1077 Invalid, 1167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1137 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-22 12:15:01,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2286 states. [2021-12-22 12:15:01,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2286 to 2286. [2021-12-22 12:15:01,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2286 states, 2257 states have (on average 1.4249003101462119) internal successors, (3216), 2285 states have internal predecessors, (3216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:01,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2286 states to 2286 states and 3216 transitions. [2021-12-22 12:15:01,336 INFO L78 Accepts]: Start accepts. Automaton has 2286 states and 3216 transitions. Word has length 104 [2021-12-22 12:15:01,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 12:15:01,336 INFO L470 AbstractCegarLoop]: Abstraction has 2286 states and 3216 transitions. [2021-12-22 12:15:01,337 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:01,337 INFO L276 IsEmpty]: Start isEmpty. Operand 2286 states and 3216 transitions. [2021-12-22 12:15:01,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-12-22 12:15:01,359 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 12:15:01,359 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 12:15:01,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-22 12:15:01,359 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-22 12:15:01,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 12:15:01,360 INFO L85 PathProgramCache]: Analyzing trace with hash 1331427909, now seen corresponding path program 1 times [2021-12-22 12:15:01,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 12:15:01,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667587012] [2021-12-22 12:15:01,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 12:15:01,360 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 12:15:01,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:15:01,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 12:15:01,487 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 12:15:01,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667587012] [2021-12-22 12:15:01,488 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667587012] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 12:15:01,488 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 12:15:01,488 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 12:15:01,488 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907502569] [2021-12-22 12:15:01,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 12:15:01,488 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 12:15:01,488 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 12:15:01,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 12:15:01,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 12:15:01,496 INFO L87 Difference]: Start difference. First operand 2286 states and 3216 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:02,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 12:15:02,094 INFO L93 Difference]: Finished difference Result 2673 states and 3684 transitions. [2021-12-22 12:15:02,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 12:15:02,094 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-12-22 12:15:02,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 12:15:02,099 INFO L225 Difference]: With dead ends: 2673 [2021-12-22 12:15:02,099 INFO L226 Difference]: Without dead ends: 1556 [2021-12-22 12:15:02,100 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 [2021-12-22 12:15:02,102 INFO L933 BasicCegarLoop]: 720 mSDtfsCounter, 4230 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 764 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4230 SdHoareTripleChecker+Valid, 764 SdHoareTripleChecker+Invalid, 866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 764 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-22 12:15:02,102 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4230 Valid, 764 Invalid, 866 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 764 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-22 12:15:02,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1556 states. [2021-12-22 12:15:02,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1556 to 1556. [2021-12-22 12:15:02,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1556 states, 1527 states have (on average 1.441388343156516) internal successors, (2201), 1555 states have internal predecessors, (2201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:02,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1556 states to 1556 states and 2201 transitions. [2021-12-22 12:15:02,171 INFO L78 Accepts]: Start accepts. Automaton has 1556 states and 2201 transitions. Word has length 105 [2021-12-22 12:15:02,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 12:15:02,172 INFO L470 AbstractCegarLoop]: Abstraction has 1556 states and 2201 transitions. [2021-12-22 12:15:02,172 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:02,172 INFO L276 IsEmpty]: Start isEmpty. Operand 1556 states and 2201 transitions. [2021-12-22 12:15:02,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-12-22 12:15:02,174 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 12:15:02,174 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 12:15:02,174 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-22 12:15:02,174 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-22 12:15:02,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 12:15:02,175 INFO L85 PathProgramCache]: Analyzing trace with hash -1784080565, now seen corresponding path program 1 times [2021-12-22 12:15:02,175 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 12:15:02,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839724489] [2021-12-22 12:15:02,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 12:15:02,176 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 12:15:02,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:15:02,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 12:15:02,321 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 12:15:02,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839724489] [2021-12-22 12:15:02,321 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839724489] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 12:15:02,321 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 12:15:02,321 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-22 12:15:02,321 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448848589] [2021-12-22 12:15:02,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 12:15:02,321 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-22 12:15:02,322 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 12:15:02,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-22 12:15:02,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-22 12:15:02,322 INFO L87 Difference]: Start difference. First operand 1556 states and 2201 transitions. Second operand has 9 states, 9 states have (on average 11.777777777777779) internal successors, (106), 8 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:03,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 12:15:03,982 INFO L93 Difference]: Finished difference Result 2956 states and 4219 transitions. [2021-12-22 12:15:03,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-22 12:15:03,983 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.777777777777779) internal successors, (106), 8 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2021-12-22 12:15:03,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 12:15:03,990 INFO L225 Difference]: With dead ends: 2956 [2021-12-22 12:15:03,991 INFO L226 Difference]: Without dead ends: 2740 [2021-12-22 12:15:03,992 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-22 12:15:03,993 INFO L933 BasicCegarLoop]: 876 mSDtfsCounter, 6588 mSDsluCounter, 2872 mSDsCounter, 0 mSdLazyCounter, 3162 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6588 SdHoareTripleChecker+Valid, 3748 SdHoareTripleChecker+Invalid, 3220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 3162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-22 12:15:03,993 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6588 Valid, 3748 Invalid, 3220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 3162 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-22 12:15:03,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2740 states. [2021-12-22 12:15:04,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2740 to 1556. [2021-12-22 12:15:04,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1556 states, 1527 states have (on average 1.4407334643091028) internal successors, (2200), 1555 states have internal predecessors, (2200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:04,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1556 states to 1556 states and 2200 transitions. [2021-12-22 12:15:04,103 INFO L78 Accepts]: Start accepts. Automaton has 1556 states and 2200 transitions. Word has length 106 [2021-12-22 12:15:04,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 12:15:04,104 INFO L470 AbstractCegarLoop]: Abstraction has 1556 states and 2200 transitions. [2021-12-22 12:15:04,104 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.777777777777779) internal successors, (106), 8 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:04,104 INFO L276 IsEmpty]: Start isEmpty. Operand 1556 states and 2200 transitions. [2021-12-22 12:15:04,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-12-22 12:15:04,106 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 12:15:04,106 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 12:15:04,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-22 12:15:04,107 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-22 12:15:04,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 12:15:04,107 INFO L85 PathProgramCache]: Analyzing trace with hash -93884374, now seen corresponding path program 1 times [2021-12-22 12:15:04,107 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 12:15:04,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357624842] [2021-12-22 12:15:04,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 12:15:04,108 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 12:15:04,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:15:04,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 12:15:04,285 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 12:15:04,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357624842] [2021-12-22 12:15:04,285 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357624842] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 12:15:04,285 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 12:15:04,285 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-22 12:15:04,285 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585945699] [2021-12-22 12:15:04,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 12:15:04,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-22 12:15:04,286 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 12:15:04,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-22 12:15:04,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-12-22 12:15:04,287 INFO L87 Difference]: Start difference. First operand 1556 states and 2200 transitions. Second operand has 12 states, 12 states have (on average 8.833333333333334) internal successors, (106), 11 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:06,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 12:15:06,225 INFO L93 Difference]: Finished difference Result 3029 states and 4316 transitions. [2021-12-22 12:15:06,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-12-22 12:15:06,225 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.833333333333334) internal successors, (106), 11 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2021-12-22 12:15:06,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 12:15:06,233 INFO L225 Difference]: With dead ends: 3029 [2021-12-22 12:15:06,233 INFO L226 Difference]: Without dead ends: 2814 [2021-12-22 12:15:06,234 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=182, Invalid=520, Unknown=0, NotChecked=0, Total=702 [2021-12-22 12:15:06,236 INFO L933 BasicCegarLoop]: 911 mSDtfsCounter, 4377 mSDsluCounter, 4378 mSDsCounter, 0 mSdLazyCounter, 4511 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4377 SdHoareTripleChecker+Valid, 5289 SdHoareTripleChecker+Invalid, 4560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 4511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-22 12:15:06,236 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4377 Valid, 5289 Invalid, 4560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 4511 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-22 12:15:06,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2814 states. [2021-12-22 12:15:06,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2814 to 1563. [2021-12-22 12:15:06,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1563 states, 1534 states have (on average 1.4406779661016949) internal successors, (2210), 1562 states have internal predecessors, (2210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:06,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1563 states to 1563 states and 2210 transitions. [2021-12-22 12:15:06,354 INFO L78 Accepts]: Start accepts. Automaton has 1563 states and 2210 transitions. Word has length 106 [2021-12-22 12:15:06,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 12:15:06,354 INFO L470 AbstractCegarLoop]: Abstraction has 1563 states and 2210 transitions. [2021-12-22 12:15:06,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.833333333333334) internal successors, (106), 11 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:06,354 INFO L276 IsEmpty]: Start isEmpty. Operand 1563 states and 2210 transitions. [2021-12-22 12:15:06,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-12-22 12:15:06,356 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 12:15:06,356 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 12:15:06,356 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-22 12:15:06,356 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-22 12:15:06,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 12:15:06,357 INFO L85 PathProgramCache]: Analyzing trace with hash -1475113997, now seen corresponding path program 1 times [2021-12-22 12:15:06,357 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 12:15:06,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623691980] [2021-12-22 12:15:06,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 12:15:06,357 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 12:15:06,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:15:06,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 12:15:06,461 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 12:15:06,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623691980] [2021-12-22 12:15:06,462 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623691980] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 12:15:06,462 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 12:15:06,462 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-22 12:15:06,462 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670360143] [2021-12-22 12:15:06,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 12:15:06,463 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-22 12:15:06,463 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 12:15:06,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-22 12:15:06,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-22 12:15:06,464 INFO L87 Difference]: Start difference. First operand 1563 states and 2210 transitions. Second operand has 9 states, 9 states have (on average 11.777777777777779) internal successors, (106), 8 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:07,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 12:15:07,987 INFO L93 Difference]: Finished difference Result 2780 states and 3943 transitions. [2021-12-22 12:15:07,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-22 12:15:07,989 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.777777777777779) internal successors, (106), 8 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2021-12-22 12:15:07,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 12:15:07,997 INFO L225 Difference]: With dead ends: 2780 [2021-12-22 12:15:07,997 INFO L226 Difference]: Without dead ends: 2396 [2021-12-22 12:15:07,998 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-22 12:15:07,999 INFO L933 BasicCegarLoop]: 857 mSDtfsCounter, 4699 mSDsluCounter, 2626 mSDsCounter, 0 mSdLazyCounter, 2938 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4699 SdHoareTripleChecker+Valid, 3483 SdHoareTripleChecker+Invalid, 2960 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 2938 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-22 12:15:07,999 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4699 Valid, 3483 Invalid, 2960 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 2938 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-22 12:15:08,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2396 states. [2021-12-22 12:15:08,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2396 to 1556. [2021-12-22 12:15:08,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1556 states, 1527 states have (on average 1.4400785854616895) internal successors, (2199), 1555 states have internal predecessors, (2199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:08,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1556 states to 1556 states and 2199 transitions. [2021-12-22 12:15:08,090 INFO L78 Accepts]: Start accepts. Automaton has 1556 states and 2199 transitions. Word has length 106 [2021-12-22 12:15:08,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 12:15:08,090 INFO L470 AbstractCegarLoop]: Abstraction has 1556 states and 2199 transitions. [2021-12-22 12:15:08,091 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.777777777777779) internal successors, (106), 8 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:08,091 INFO L276 IsEmpty]: Start isEmpty. Operand 1556 states and 2199 transitions. [2021-12-22 12:15:08,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-12-22 12:15:08,093 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 12:15:08,093 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 12:15:08,093 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-22 12:15:08,093 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-22 12:15:08,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 12:15:08,094 INFO L85 PathProgramCache]: Analyzing trace with hash 1447789183, now seen corresponding path program 1 times [2021-12-22 12:15:08,094 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 12:15:08,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059123623] [2021-12-22 12:15:08,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 12:15:08,094 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 12:15:08,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:15:08,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 12:15:08,243 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 12:15:08,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059123623] [2021-12-22 12:15:08,243 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059123623] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 12:15:08,243 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 12:15:08,243 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-22 12:15:08,243 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144698289] [2021-12-22 12:15:08,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 12:15:08,244 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-22 12:15:08,244 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 12:15:08,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-22 12:15:08,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-12-22 12:15:08,244 INFO L87 Difference]: Start difference. First operand 1556 states and 2199 transitions. Second operand has 11 states, 11 states have (on average 9.636363636363637) internal successors, (106), 10 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:10,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 12:15:10,022 INFO L93 Difference]: Finished difference Result 2844 states and 4036 transitions. [2021-12-22 12:15:10,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-22 12:15:10,023 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.636363636363637) internal successors, (106), 10 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2021-12-22 12:15:10,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 12:15:10,028 INFO L225 Difference]: With dead ends: 2844 [2021-12-22 12:15:10,028 INFO L226 Difference]: Without dead ends: 2660 [2021-12-22 12:15:10,029 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380 [2021-12-22 12:15:10,030 INFO L933 BasicCegarLoop]: 852 mSDtfsCounter, 8624 mSDsluCounter, 3491 mSDsCounter, 0 mSdLazyCounter, 3720 mSolverCounterSat, 274 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8624 SdHoareTripleChecker+Valid, 4343 SdHoareTripleChecker+Invalid, 3994 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 274 IncrementalHoareTripleChecker+Valid, 3720 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-22 12:15:10,030 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8624 Valid, 4343 Invalid, 3994 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [274 Valid, 3720 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-22 12:15:10,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2660 states. [2021-12-22 12:15:10,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2660 to 1556. [2021-12-22 12:15:10,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1556 states, 1527 states have (on average 1.438768827766863) internal successors, (2197), 1555 states have internal predecessors, (2197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:10,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1556 states to 1556 states and 2197 transitions. [2021-12-22 12:15:10,142 INFO L78 Accepts]: Start accepts. Automaton has 1556 states and 2197 transitions. Word has length 106 [2021-12-22 12:15:10,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 12:15:10,142 INFO L470 AbstractCegarLoop]: Abstraction has 1556 states and 2197 transitions. [2021-12-22 12:15:10,143 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.636363636363637) internal successors, (106), 10 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:10,143 INFO L276 IsEmpty]: Start isEmpty. Operand 1556 states and 2197 transitions. [2021-12-22 12:15:10,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-12-22 12:15:10,145 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 12:15:10,145 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 12:15:10,145 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-22 12:15:10,146 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-22 12:15:10,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 12:15:10,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1399133704, now seen corresponding path program 1 times [2021-12-22 12:15:10,146 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 12:15:10,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919440146] [2021-12-22 12:15:10,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 12:15:10,147 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 12:15:10,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:15:10,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 12:15:10,285 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 12:15:10,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919440146] [2021-12-22 12:15:10,285 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919440146] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 12:15:10,285 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 12:15:10,285 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-22 12:15:10,286 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949031979] [2021-12-22 12:15:10,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 12:15:10,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-22 12:15:10,286 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 12:15:10,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-22 12:15:10,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-12-22 12:15:10,287 INFO L87 Difference]: Start difference. First operand 1556 states and 2197 transitions. Second operand has 11 states, 11 states have (on average 9.636363636363637) internal successors, (106), 10 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:11,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 12:15:11,786 INFO L93 Difference]: Finished difference Result 2996 states and 4267 transitions. [2021-12-22 12:15:11,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-22 12:15:11,786 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.636363636363637) internal successors, (106), 10 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2021-12-22 12:15:11,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 12:15:11,798 INFO L225 Difference]: With dead ends: 2996 [2021-12-22 12:15:11,798 INFO L226 Difference]: Without dead ends: 2732 [2021-12-22 12:15:11,799 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380 [2021-12-22 12:15:11,800 INFO L933 BasicCegarLoop]: 876 mSDtfsCounter, 6707 mSDsluCounter, 3682 mSDsCounter, 0 mSdLazyCounter, 3817 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6707 SdHoareTripleChecker+Valid, 4558 SdHoareTripleChecker+Invalid, 3881 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 3817 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-22 12:15:11,800 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6707 Valid, 4558 Invalid, 3881 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 3817 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-22 12:15:11,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2732 states. [2021-12-22 12:15:11,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2732 to 1556. [2021-12-22 12:15:11,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1556 states, 1527 states have (on average 1.4374590700720367) internal successors, (2195), 1555 states have internal predecessors, (2195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:11,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1556 states to 1556 states and 2195 transitions. [2021-12-22 12:15:11,902 INFO L78 Accepts]: Start accepts. Automaton has 1556 states and 2195 transitions. Word has length 106 [2021-12-22 12:15:11,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 12:15:11,903 INFO L470 AbstractCegarLoop]: Abstraction has 1556 states and 2195 transitions. [2021-12-22 12:15:11,903 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.636363636363637) internal successors, (106), 10 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:11,903 INFO L276 IsEmpty]: Start isEmpty. Operand 1556 states and 2195 transitions. [2021-12-22 12:15:11,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-12-22 12:15:11,905 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 12:15:11,905 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 12:15:11,905 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-22 12:15:11,905 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-22 12:15:11,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 12:15:11,905 INFO L85 PathProgramCache]: Analyzing trace with hash -287017141, now seen corresponding path program 1 times [2021-12-22 12:15:11,906 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 12:15:11,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038611400] [2021-12-22 12:15:11,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 12:15:11,906 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 12:15:11,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:15:12,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 12:15:12,017 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 12:15:12,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038611400] [2021-12-22 12:15:12,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038611400] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 12:15:12,018 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 12:15:12,018 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-22 12:15:12,018 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762435322] [2021-12-22 12:15:12,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 12:15:12,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-22 12:15:12,018 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 12:15:12,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-22 12:15:12,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-12-22 12:15:12,019 INFO L87 Difference]: Start difference. First operand 1556 states and 2195 transitions. Second operand has 11 states, 11 states have (on average 9.636363636363637) internal successors, (106), 10 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:13,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 12:15:13,483 INFO L93 Difference]: Finished difference Result 2992 states and 4265 transitions. [2021-12-22 12:15:13,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-22 12:15:13,483 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.636363636363637) internal successors, (106), 10 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2021-12-22 12:15:13,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 12:15:13,488 INFO L225 Difference]: With dead ends: 2992 [2021-12-22 12:15:13,488 INFO L226 Difference]: Without dead ends: 2732 [2021-12-22 12:15:13,489 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380 [2021-12-22 12:15:13,490 INFO L933 BasicCegarLoop]: 876 mSDtfsCounter, 6527 mSDsluCounter, 3698 mSDsCounter, 0 mSdLazyCounter, 3812 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6527 SdHoareTripleChecker+Valid, 4574 SdHoareTripleChecker+Invalid, 3875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 3812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-22 12:15:13,490 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6527 Valid, 4574 Invalid, 3875 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 3812 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-22 12:15:13,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2732 states. [2021-12-22 12:15:13,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2732 to 1556. [2021-12-22 12:15:13,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1556 states, 1527 states have (on average 1.4361493123772102) internal successors, (2193), 1555 states have internal predecessors, (2193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:13,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1556 states to 1556 states and 2193 transitions. [2021-12-22 12:15:13,594 INFO L78 Accepts]: Start accepts. Automaton has 1556 states and 2193 transitions. Word has length 106 [2021-12-22 12:15:13,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 12:15:13,594 INFO L470 AbstractCegarLoop]: Abstraction has 1556 states and 2193 transitions. [2021-12-22 12:15:13,595 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.636363636363637) internal successors, (106), 10 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:13,595 INFO L276 IsEmpty]: Start isEmpty. Operand 1556 states and 2193 transitions. [2021-12-22 12:15:13,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-12-22 12:15:13,596 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 12:15:13,596 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 12:15:13,596 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-22 12:15:13,598 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-22 12:15:13,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 12:15:13,599 INFO L85 PathProgramCache]: Analyzing trace with hash -965176715, now seen corresponding path program 1 times [2021-12-22 12:15:13,599 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 12:15:13,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751715583] [2021-12-22 12:15:13,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 12:15:13,599 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 12:15:13,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:15:13,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 12:15:13,729 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 12:15:13,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751715583] [2021-12-22 12:15:13,729 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751715583] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 12:15:13,729 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 12:15:13,730 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-22 12:15:13,730 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910031058] [2021-12-22 12:15:13,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 12:15:13,730 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-22 12:15:13,730 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 12:15:13,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-22 12:15:13,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-12-22 12:15:13,731 INFO L87 Difference]: Start difference. First operand 1556 states and 2193 transitions. Second operand has 11 states, 11 states have (on average 9.636363636363637) internal successors, (106), 10 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:15,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 12:15:15,331 INFO L93 Difference]: Finished difference Result 3038 states and 4291 transitions. [2021-12-22 12:15:15,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-22 12:15:15,332 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.636363636363637) internal successors, (106), 10 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2021-12-22 12:15:15,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 12:15:15,336 INFO L225 Difference]: With dead ends: 3038 [2021-12-22 12:15:15,336 INFO L226 Difference]: Without dead ends: 2388 [2021-12-22 12:15:15,337 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380 [2021-12-22 12:15:15,337 INFO L933 BasicCegarLoop]: 881 mSDtfsCounter, 7894 mSDsluCounter, 4204 mSDsCounter, 0 mSdLazyCounter, 4261 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7894 SdHoareTripleChecker+Valid, 5085 SdHoareTripleChecker+Invalid, 4291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 4261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-22 12:15:15,338 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7894 Valid, 5085 Invalid, 4291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 4261 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-22 12:15:15,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2388 states. [2021-12-22 12:15:15,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2388 to 1556. [2021-12-22 12:15:15,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1556 states, 1527 states have (on average 1.4348395546823838) internal successors, (2191), 1555 states have internal predecessors, (2191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:15,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1556 states to 1556 states and 2191 transitions. [2021-12-22 12:15:15,448 INFO L78 Accepts]: Start accepts. Automaton has 1556 states and 2191 transitions. Word has length 106 [2021-12-22 12:15:15,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 12:15:15,449 INFO L470 AbstractCegarLoop]: Abstraction has 1556 states and 2191 transitions. [2021-12-22 12:15:15,449 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.636363636363637) internal successors, (106), 10 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:15,449 INFO L276 IsEmpty]: Start isEmpty. Operand 1556 states and 2191 transitions. [2021-12-22 12:15:15,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-12-22 12:15:15,450 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 12:15:15,451 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 12:15:15,451 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-22 12:15:15,451 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-22 12:15:15,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 12:15:15,451 INFO L85 PathProgramCache]: Analyzing trace with hash -1899937595, now seen corresponding path program 1 times [2021-12-22 12:15:15,451 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 12:15:15,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448344203] [2021-12-22 12:15:15,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 12:15:15,452 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 12:15:15,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:15:15,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 12:15:15,591 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 12:15:15,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448344203] [2021-12-22 12:15:15,591 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448344203] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 12:15:15,591 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 12:15:15,591 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-22 12:15:15,591 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276623002] [2021-12-22 12:15:15,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 12:15:15,592 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-22 12:15:15,592 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 12:15:15,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-22 12:15:15,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-22 12:15:15,592 INFO L87 Difference]: Start difference. First operand 1556 states and 2191 transitions. Second operand has 9 states, 9 states have (on average 12.0) internal successors, (108), 8 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:17,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 12:15:17,089 INFO L93 Difference]: Finished difference Result 2955 states and 4204 transitions. [2021-12-22 12:15:17,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-22 12:15:17,090 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.0) internal successors, (108), 8 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-12-22 12:15:17,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 12:15:17,095 INFO L225 Difference]: With dead ends: 2955 [2021-12-22 12:15:17,095 INFO L226 Difference]: Without dead ends: 2740 [2021-12-22 12:15:17,097 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-22 12:15:17,097 INFO L933 BasicCegarLoop]: 876 mSDtfsCounter, 4174 mSDsluCounter, 2887 mSDsCounter, 0 mSdLazyCounter, 3138 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4174 SdHoareTripleChecker+Valid, 3763 SdHoareTripleChecker+Invalid, 3177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 3138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-22 12:15:17,098 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4174 Valid, 3763 Invalid, 3177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 3138 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-22 12:15:17,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2740 states. [2021-12-22 12:15:17,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2740 to 1556. [2021-12-22 12:15:17,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1556 states, 1527 states have (on average 1.4341846758349706) internal successors, (2190), 1555 states have internal predecessors, (2190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:17,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1556 states to 1556 states and 2190 transitions. [2021-12-22 12:15:17,227 INFO L78 Accepts]: Start accepts. Automaton has 1556 states and 2190 transitions. Word has length 108 [2021-12-22 12:15:17,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 12:15:17,228 INFO L470 AbstractCegarLoop]: Abstraction has 1556 states and 2190 transitions. [2021-12-22 12:15:17,228 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.0) internal successors, (108), 8 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:17,228 INFO L276 IsEmpty]: Start isEmpty. Operand 1556 states and 2190 transitions. [2021-12-22 12:15:17,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-12-22 12:15:17,229 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 12:15:17,230 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 12:15:17,230 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-22 12:15:17,230 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-22 12:15:17,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 12:15:17,230 INFO L85 PathProgramCache]: Analyzing trace with hash 1013800078, now seen corresponding path program 1 times [2021-12-22 12:15:17,230 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 12:15:17,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401722100] [2021-12-22 12:15:17,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 12:15:17,231 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 12:15:17,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:15:17,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 12:15:17,360 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 12:15:17,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401722100] [2021-12-22 12:15:17,361 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401722100] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 12:15:17,361 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 12:15:17,361 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-22 12:15:17,362 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221779750] [2021-12-22 12:15:17,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 12:15:17,363 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-22 12:15:17,363 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 12:15:17,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-22 12:15:17,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-22 12:15:17,363 INFO L87 Difference]: Start difference. First operand 1556 states and 2190 transitions. Second operand has 9 states, 9 states have (on average 12.0) internal successors, (108), 8 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:19,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 12:15:19,025 INFO L93 Difference]: Finished difference Result 3051 states and 4347 transitions. [2021-12-22 12:15:19,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-22 12:15:19,025 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.0) internal successors, (108), 8 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-12-22 12:15:19,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 12:15:19,034 INFO L225 Difference]: With dead ends: 3051 [2021-12-22 12:15:19,034 INFO L226 Difference]: Without dead ends: 2767 [2021-12-22 12:15:19,035 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 [2021-12-22 12:15:19,037 INFO L933 BasicCegarLoop]: 1327 mSDtfsCounter, 3566 mSDsluCounter, 3906 mSDsCounter, 0 mSdLazyCounter, 4253 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3566 SdHoareTripleChecker+Valid, 5233 SdHoareTripleChecker+Invalid, 4274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 4253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-22 12:15:19,038 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3566 Valid, 5233 Invalid, 4274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 4253 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-22 12:15:19,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2767 states. [2021-12-22 12:15:19,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2767 to 1556. [2021-12-22 12:15:19,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1556 states, 1527 states have (on average 1.4335297969875573) internal successors, (2189), 1555 states have internal predecessors, (2189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:19,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1556 states to 1556 states and 2189 transitions. [2021-12-22 12:15:19,178 INFO L78 Accepts]: Start accepts. Automaton has 1556 states and 2189 transitions. Word has length 108 [2021-12-22 12:15:19,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 12:15:19,179 INFO L470 AbstractCegarLoop]: Abstraction has 1556 states and 2189 transitions. [2021-12-22 12:15:19,179 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.0) internal successors, (108), 8 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:19,179 INFO L276 IsEmpty]: Start isEmpty. Operand 1556 states and 2189 transitions. [2021-12-22 12:15:19,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-12-22 12:15:19,181 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 12:15:19,181 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 12:15:19,181 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-22 12:15:19,181 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-22 12:15:19,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 12:15:19,182 INFO L85 PathProgramCache]: Analyzing trace with hash 599824408, now seen corresponding path program 1 times [2021-12-22 12:15:19,182 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 12:15:19,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297956994] [2021-12-22 12:15:19,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 12:15:19,184 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 12:15:19,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:15:19,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 12:15:19,310 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 12:15:19,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297956994] [2021-12-22 12:15:19,311 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297956994] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 12:15:19,311 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 12:15:19,311 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-22 12:15:19,311 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250695915] [2021-12-22 12:15:19,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 12:15:19,313 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-22 12:15:19,313 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 12:15:19,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-22 12:15:19,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-22 12:15:19,314 INFO L87 Difference]: Start difference. First operand 1556 states and 2189 transitions. Second operand has 9 states, 9 states have (on average 12.0) internal successors, (108), 8 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:20,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 12:15:20,749 INFO L93 Difference]: Finished difference Result 2949 states and 4196 transitions. [2021-12-22 12:15:20,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-22 12:15:20,749 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.0) internal successors, (108), 8 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-12-22 12:15:20,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 12:15:20,754 INFO L225 Difference]: With dead ends: 2949 [2021-12-22 12:15:20,754 INFO L226 Difference]: Without dead ends: 2740 [2021-12-22 12:15:20,755 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-22 12:15:20,755 INFO L933 BasicCegarLoop]: 947 mSDtfsCounter, 4867 mSDsluCounter, 3131 mSDsCounter, 0 mSdLazyCounter, 3400 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4867 SdHoareTripleChecker+Valid, 4078 SdHoareTripleChecker+Invalid, 3448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 3400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-22 12:15:20,755 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4867 Valid, 4078 Invalid, 3448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 3400 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-22 12:15:20,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2740 states. [2021-12-22 12:15:20,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2740 to 1556. [2021-12-22 12:15:20,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1556 states, 1527 states have (on average 1.4328749181401441) internal successors, (2188), 1555 states have internal predecessors, (2188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:20,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1556 states to 1556 states and 2188 transitions. [2021-12-22 12:15:20,872 INFO L78 Accepts]: Start accepts. Automaton has 1556 states and 2188 transitions. Word has length 108 [2021-12-22 12:15:20,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 12:15:20,873 INFO L470 AbstractCegarLoop]: Abstraction has 1556 states and 2188 transitions. [2021-12-22 12:15:20,873 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.0) internal successors, (108), 8 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:20,873 INFO L276 IsEmpty]: Start isEmpty. Operand 1556 states and 2188 transitions. [2021-12-22 12:15:20,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-12-22 12:15:20,874 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 12:15:20,875 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 12:15:20,875 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-22 12:15:20,875 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-22 12:15:20,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 12:15:20,875 INFO L85 PathProgramCache]: Analyzing trace with hash -187390256, now seen corresponding path program 1 times [2021-12-22 12:15:20,876 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 12:15:20,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108838266] [2021-12-22 12:15:20,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 12:15:20,876 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 12:15:20,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:15:21,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 12:15:21,051 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 12:15:21,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108838266] [2021-12-22 12:15:21,051 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108838266] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 12:15:21,051 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 12:15:21,052 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-22 12:15:21,052 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261036010] [2021-12-22 12:15:21,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 12:15:21,052 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-22 12:15:21,053 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 12:15:21,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-22 12:15:21,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-22 12:15:21,053 INFO L87 Difference]: Start difference. First operand 1556 states and 2188 transitions. Second operand has 9 states, 9 states have (on average 12.0) internal successors, (108), 8 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:22,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 12:15:22,520 INFO L93 Difference]: Finished difference Result 3031 states and 4323 transitions. [2021-12-22 12:15:22,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-22 12:15:22,520 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.0) internal successors, (108), 8 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-12-22 12:15:22,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 12:15:22,525 INFO L225 Difference]: With dead ends: 3031 [2021-12-22 12:15:22,525 INFO L226 Difference]: Without dead ends: 2767 [2021-12-22 12:15:22,526 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-12-22 12:15:22,526 INFO L933 BasicCegarLoop]: 1239 mSDtfsCounter, 6902 mSDsluCounter, 3952 mSDsCounter, 0 mSdLazyCounter, 4187 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6902 SdHoareTripleChecker+Valid, 5191 SdHoareTripleChecker+Invalid, 4229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 4187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-22 12:15:22,526 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6902 Valid, 5191 Invalid, 4229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 4187 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-22 12:15:22,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2767 states. [2021-12-22 12:15:22,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2767 to 1556. [2021-12-22 12:15:22,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1556 states, 1527 states have (on average 1.432220039292731) internal successors, (2187), 1555 states have internal predecessors, (2187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:22,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1556 states to 1556 states and 2187 transitions. [2021-12-22 12:15:22,657 INFO L78 Accepts]: Start accepts. Automaton has 1556 states and 2187 transitions. Word has length 108 [2021-12-22 12:15:22,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 12:15:22,657 INFO L470 AbstractCegarLoop]: Abstraction has 1556 states and 2187 transitions. [2021-12-22 12:15:22,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.0) internal successors, (108), 8 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:22,658 INFO L276 IsEmpty]: Start isEmpty. Operand 1556 states and 2187 transitions. [2021-12-22 12:15:22,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-12-22 12:15:22,659 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 12:15:22,659 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 12:15:22,659 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-22 12:15:22,660 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-22 12:15:22,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 12:15:22,660 INFO L85 PathProgramCache]: Analyzing trace with hash -817532877, now seen corresponding path program 1 times [2021-12-22 12:15:22,660 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 12:15:22,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907830468] [2021-12-22 12:15:22,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 12:15:22,661 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 12:15:22,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:15:22,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 12:15:22,769 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 12:15:22,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907830468] [2021-12-22 12:15:22,769 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907830468] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 12:15:22,769 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 12:15:22,769 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-22 12:15:22,770 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948838238] [2021-12-22 12:15:22,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 12:15:22,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-22 12:15:22,771 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 12:15:22,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-22 12:15:22,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-22 12:15:22,772 INFO L87 Difference]: Start difference. First operand 1556 states and 2187 transitions. Second operand has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:23,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 12:15:23,755 INFO L93 Difference]: Finished difference Result 2679 states and 3647 transitions. [2021-12-22 12:15:23,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-22 12:15:23,756 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-12-22 12:15:23,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 12:15:23,759 INFO L225 Difference]: With dead ends: 2679 [2021-12-22 12:15:23,759 INFO L226 Difference]: Without dead ends: 2015 [2021-12-22 12:15:23,760 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 [2021-12-22 12:15:23,761 INFO L933 BasicCegarLoop]: 650 mSDtfsCounter, 7436 mSDsluCounter, 1441 mSDsCounter, 0 mSdLazyCounter, 2252 mSolverCounterSat, 139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7436 SdHoareTripleChecker+Valid, 2091 SdHoareTripleChecker+Invalid, 2391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 139 IncrementalHoareTripleChecker+Valid, 2252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-22 12:15:23,761 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7436 Valid, 2091 Invalid, 2391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [139 Valid, 2252 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-22 12:15:23,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2015 states. [2021-12-22 12:15:23,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2015 to 1556. [2021-12-22 12:15:23,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1556 states, 1527 states have (on average 1.4315651604453177) internal successors, (2186), 1555 states have internal predecessors, (2186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:23,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1556 states to 1556 states and 2186 transitions. [2021-12-22 12:15:23,940 INFO L78 Accepts]: Start accepts. Automaton has 1556 states and 2186 transitions. Word has length 108 [2021-12-22 12:15:23,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 12:15:23,940 INFO L470 AbstractCegarLoop]: Abstraction has 1556 states and 2186 transitions. [2021-12-22 12:15:23,940 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:23,940 INFO L276 IsEmpty]: Start isEmpty. Operand 1556 states and 2186 transitions. [2021-12-22 12:15:23,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-12-22 12:15:23,942 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 12:15:23,943 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 12:15:23,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-22 12:15:23,943 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-22 12:15:23,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 12:15:23,944 INFO L85 PathProgramCache]: Analyzing trace with hash 499181646, now seen corresponding path program 1 times [2021-12-22 12:15:23,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 12:15:23,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282024081] [2021-12-22 12:15:23,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 12:15:23,944 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 12:15:23,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:15:24,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 12:15:24,052 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 12:15:24,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282024081] [2021-12-22 12:15:24,053 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282024081] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 12:15:24,053 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 12:15:24,053 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-22 12:15:24,053 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002598109] [2021-12-22 12:15:24,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 12:15:24,053 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-22 12:15:24,054 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 12:15:24,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-22 12:15:24,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-22 12:15:24,054 INFO L87 Difference]: Start difference. First operand 1556 states and 2186 transitions. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:25,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 12:15:25,488 INFO L93 Difference]: Finished difference Result 3135 states and 4460 transitions. [2021-12-22 12:15:25,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-22 12:15:25,488 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2021-12-22 12:15:25,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 12:15:25,492 INFO L225 Difference]: With dead ends: 3135 [2021-12-22 12:15:25,492 INFO L226 Difference]: Without dead ends: 2767 [2021-12-22 12:15:25,493 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-12-22 12:15:25,495 INFO L933 BasicCegarLoop]: 1208 mSDtfsCounter, 6913 mSDsluCounter, 3923 mSDsCounter, 0 mSdLazyCounter, 4094 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6913 SdHoareTripleChecker+Valid, 5131 SdHoareTripleChecker+Invalid, 4136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 4094 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-22 12:15:25,496 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6913 Valid, 5131 Invalid, 4136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 4094 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-22 12:15:25,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2767 states. [2021-12-22 12:15:25,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2767 to 1556. [2021-12-22 12:15:25,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1556 states, 1527 states have (on average 1.4302554027504912) internal successors, (2184), 1555 states have internal predecessors, (2184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:25,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1556 states to 1556 states and 2184 transitions. [2021-12-22 12:15:25,661 INFO L78 Accepts]: Start accepts. Automaton has 1556 states and 2184 transitions. Word has length 110 [2021-12-22 12:15:25,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 12:15:25,661 INFO L470 AbstractCegarLoop]: Abstraction has 1556 states and 2184 transitions. [2021-12-22 12:15:25,662 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:25,662 INFO L276 IsEmpty]: Start isEmpty. Operand 1556 states and 2184 transitions. [2021-12-22 12:15:25,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-12-22 12:15:25,663 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 12:15:25,663 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 12:15:25,664 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-22 12:15:25,665 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-22 12:15:25,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 12:15:25,666 INFO L85 PathProgramCache]: Analyzing trace with hash 710747051, now seen corresponding path program 1 times [2021-12-22 12:15:25,666 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 12:15:25,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882209160] [2021-12-22 12:15:25,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 12:15:25,666 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 12:15:25,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:15:25,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 12:15:25,761 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 12:15:25,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882209160] [2021-12-22 12:15:25,762 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882209160] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 12:15:25,762 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 12:15:25,762 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-22 12:15:25,762 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697030682] [2021-12-22 12:15:25,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 12:15:25,763 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-22 12:15:25,763 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 12:15:25,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-22 12:15:25,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-22 12:15:25,764 INFO L87 Difference]: Start difference. First operand 1556 states and 2184 transitions. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:27,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 12:15:27,213 INFO L93 Difference]: Finished difference Result 2926 states and 4151 transitions. [2021-12-22 12:15:27,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-22 12:15:27,214 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2021-12-22 12:15:27,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 12:15:27,217 INFO L225 Difference]: With dead ends: 2926 [2021-12-22 12:15:27,217 INFO L226 Difference]: Without dead ends: 2716 [2021-12-22 12:15:27,218 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 [2021-12-22 12:15:27,218 INFO L933 BasicCegarLoop]: 1121 mSDtfsCounter, 7238 mSDsluCounter, 3527 mSDsCounter, 0 mSdLazyCounter, 3962 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7238 SdHoareTripleChecker+Valid, 4648 SdHoareTripleChecker+Invalid, 4083 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 3962 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-22 12:15:27,219 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7238 Valid, 4648 Invalid, 4083 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 3962 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-22 12:15:27,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2716 states. [2021-12-22 12:15:27,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2716 to 1556. [2021-12-22 12:15:27,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1556 states, 1527 states have (on average 1.4289456450556648) internal successors, (2182), 1555 states have internal predecessors, (2182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:27,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1556 states to 1556 states and 2182 transitions. [2021-12-22 12:15:27,380 INFO L78 Accepts]: Start accepts. Automaton has 1556 states and 2182 transitions. Word has length 110 [2021-12-22 12:15:27,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 12:15:27,381 INFO L470 AbstractCegarLoop]: Abstraction has 1556 states and 2182 transitions. [2021-12-22 12:15:27,381 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:27,381 INFO L276 IsEmpty]: Start isEmpty. Operand 1556 states and 2182 transitions. [2021-12-22 12:15:27,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-12-22 12:15:27,382 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 12:15:27,383 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 12:15:27,383 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-22 12:15:27,383 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-22 12:15:27,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 12:15:27,383 INFO L85 PathProgramCache]: Analyzing trace with hash -742843731, now seen corresponding path program 1 times [2021-12-22 12:15:27,383 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 12:15:27,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606141693] [2021-12-22 12:15:27,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 12:15:27,384 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 12:15:27,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:15:27,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 12:15:27,471 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 12:15:27,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606141693] [2021-12-22 12:15:27,471 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606141693] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 12:15:27,471 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 12:15:27,471 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-22 12:15:27,472 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633186903] [2021-12-22 12:15:27,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 12:15:27,472 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-22 12:15:27,472 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 12:15:27,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-22 12:15:27,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-22 12:15:27,473 INFO L87 Difference]: Start difference. First operand 1556 states and 2182 transitions. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:29,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 12:15:29,420 INFO L93 Difference]: Finished difference Result 2850 states and 4024 transitions. [2021-12-22 12:15:29,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-22 12:15:29,421 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2021-12-22 12:15:29,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 12:15:29,424 INFO L225 Difference]: With dead ends: 2850 [2021-12-22 12:15:29,424 INFO L226 Difference]: Without dead ends: 2668 [2021-12-22 12:15:29,424 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-22 12:15:29,425 INFO L933 BasicCegarLoop]: 869 mSDtfsCounter, 4051 mSDsluCounter, 2834 mSDsCounter, 0 mSdLazyCounter, 3196 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4051 SdHoareTripleChecker+Valid, 3703 SdHoareTripleChecker+Invalid, 3318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 3196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-22 12:15:29,425 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4051 Valid, 3703 Invalid, 3318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 3196 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-22 12:15:29,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2668 states. [2021-12-22 12:15:29,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2668 to 1556. [2021-12-22 12:15:29,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1556 states, 1527 states have (on average 1.4276358873608384) internal successors, (2180), 1555 states have internal predecessors, (2180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:29,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1556 states to 1556 states and 2180 transitions. [2021-12-22 12:15:29,656 INFO L78 Accepts]: Start accepts. Automaton has 1556 states and 2180 transitions. Word has length 110 [2021-12-22 12:15:29,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 12:15:29,657 INFO L470 AbstractCegarLoop]: Abstraction has 1556 states and 2180 transitions. [2021-12-22 12:15:29,657 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:29,657 INFO L276 IsEmpty]: Start isEmpty. Operand 1556 states and 2180 transitions. [2021-12-22 12:15:29,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-12-22 12:15:29,658 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 12:15:29,658 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 12:15:29,659 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-12-22 12:15:29,659 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-22 12:15:29,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 12:15:29,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1547864661, now seen corresponding path program 1 times [2021-12-22 12:15:29,659 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 12:15:29,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028807337] [2021-12-22 12:15:29,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 12:15:29,660 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 12:15:29,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:15:29,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 12:15:29,754 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 12:15:29,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028807337] [2021-12-22 12:15:29,754 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028807337] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 12:15:29,755 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 12:15:29,755 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-22 12:15:29,755 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556309238] [2021-12-22 12:15:29,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 12:15:29,770 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-22 12:15:29,770 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 12:15:29,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-22 12:15:29,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-22 12:15:29,771 INFO L87 Difference]: Start difference. First operand 1556 states and 2180 transitions. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:31,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 12:15:31,778 INFO L93 Difference]: Finished difference Result 2930 states and 4151 transitions. [2021-12-22 12:15:31,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-22 12:15:31,778 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2021-12-22 12:15:31,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 12:15:31,782 INFO L225 Difference]: With dead ends: 2930 [2021-12-22 12:15:31,782 INFO L226 Difference]: Without dead ends: 2716 [2021-12-22 12:15:31,783 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-22 12:15:31,784 INFO L933 BasicCegarLoop]: 1053 mSDtfsCounter, 3729 mSDsluCounter, 3428 mSDsCounter, 0 mSdLazyCounter, 3810 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3729 SdHoareTripleChecker+Valid, 4481 SdHoareTripleChecker+Invalid, 3872 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 3810 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-22 12:15:31,784 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3729 Valid, 4481 Invalid, 3872 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 3810 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-22 12:15:31,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2716 states. [2021-12-22 12:15:31,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2716 to 1556. [2021-12-22 12:15:31,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1556 states, 1527 states have (on average 1.4263261296660117) internal successors, (2178), 1555 states have internal predecessors, (2178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:31,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1556 states to 1556 states and 2178 transitions. [2021-12-22 12:15:31,952 INFO L78 Accepts]: Start accepts. Automaton has 1556 states and 2178 transitions. Word has length 110 [2021-12-22 12:15:31,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 12:15:31,953 INFO L470 AbstractCegarLoop]: Abstraction has 1556 states and 2178 transitions. [2021-12-22 12:15:31,953 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:31,953 INFO L276 IsEmpty]: Start isEmpty. Operand 1556 states and 2178 transitions. [2021-12-22 12:15:31,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-12-22 12:15:31,954 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 12:15:31,958 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 12:15:31,959 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-12-22 12:15:31,960 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-22 12:15:31,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 12:15:31,960 INFO L85 PathProgramCache]: Analyzing trace with hash -1996058189, now seen corresponding path program 1 times [2021-12-22 12:15:31,960 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 12:15:31,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667331549] [2021-12-22 12:15:31,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 12:15:31,960 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 12:15:32,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:15:32,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 12:15:32,084 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 12:15:32,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667331549] [2021-12-22 12:15:32,085 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667331549] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 12:15:32,085 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 12:15:32,085 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-22 12:15:32,085 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179611348] [2021-12-22 12:15:32,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 12:15:32,086 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-22 12:15:32,086 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 12:15:32,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-22 12:15:32,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-22 12:15:32,089 INFO L87 Difference]: Start difference. First operand 1556 states and 2178 transitions. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:33,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 12:15:33,881 INFO L93 Difference]: Finished difference Result 3020 states and 4279 transitions. [2021-12-22 12:15:33,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-22 12:15:33,881 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2021-12-22 12:15:33,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 12:15:33,884 INFO L225 Difference]: With dead ends: 3020 [2021-12-22 12:15:33,884 INFO L226 Difference]: Without dead ends: 2740 [2021-12-22 12:15:33,885 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-22 12:15:33,886 INFO L933 BasicCegarLoop]: 1122 mSDtfsCounter, 3708 mSDsluCounter, 3609 mSDsCounter, 0 mSdLazyCounter, 3957 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3708 SdHoareTripleChecker+Valid, 4731 SdHoareTripleChecker+Invalid, 3993 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 3957 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-22 12:15:33,886 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3708 Valid, 4731 Invalid, 3993 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 3957 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-22 12:15:33,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2740 states. [2021-12-22 12:15:34,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2740 to 1556. [2021-12-22 12:15:34,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1556 states, 1527 states have (on average 1.4250163719711852) internal successors, (2176), 1555 states have internal predecessors, (2176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:34,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1556 states to 1556 states and 2176 transitions. [2021-12-22 12:15:34,057 INFO L78 Accepts]: Start accepts. Automaton has 1556 states and 2176 transitions. Word has length 110 [2021-12-22 12:15:34,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 12:15:34,057 INFO L470 AbstractCegarLoop]: Abstraction has 1556 states and 2176 transitions. [2021-12-22 12:15:34,058 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:34,058 INFO L276 IsEmpty]: Start isEmpty. Operand 1556 states and 2176 transitions. [2021-12-22 12:15:34,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-12-22 12:15:34,059 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 12:15:34,059 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 12:15:34,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-12-22 12:15:34,060 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-22 12:15:34,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 12:15:34,060 INFO L85 PathProgramCache]: Analyzing trace with hash 50488066, now seen corresponding path program 1 times [2021-12-22 12:15:34,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 12:15:34,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68791906] [2021-12-22 12:15:34,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 12:15:34,061 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 12:15:34,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:15:34,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 12:15:34,175 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 12:15:34,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68791906] [2021-12-22 12:15:34,175 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68791906] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 12:15:34,175 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 12:15:34,175 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-22 12:15:34,176 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861993149] [2021-12-22 12:15:34,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 12:15:34,176 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-22 12:15:34,176 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 12:15:34,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-22 12:15:34,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-22 12:15:34,176 INFO L87 Difference]: Start difference. First operand 1556 states and 2176 transitions. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:35,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 12:15:35,958 INFO L93 Difference]: Finished difference Result 3036 states and 4291 transitions. [2021-12-22 12:15:35,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-22 12:15:35,958 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2021-12-22 12:15:35,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 12:15:35,961 INFO L225 Difference]: With dead ends: 3036 [2021-12-22 12:15:35,961 INFO L226 Difference]: Without dead ends: 2740 [2021-12-22 12:15:35,962 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-22 12:15:35,962 INFO L933 BasicCegarLoop]: 1075 mSDtfsCounter, 5762 mSDsluCounter, 3538 mSDsCounter, 0 mSdLazyCounter, 3853 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5762 SdHoareTripleChecker+Valid, 4613 SdHoareTripleChecker+Invalid, 3906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 3853 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-22 12:15:35,963 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5762 Valid, 4613 Invalid, 3906 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 3853 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-22 12:15:35,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2740 states. [2021-12-22 12:15:36,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2740 to 1556. [2021-12-22 12:15:36,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1556 states, 1527 states have (on average 1.4237066142763588) internal successors, (2174), 1555 states have internal predecessors, (2174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:36,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1556 states to 1556 states and 2174 transitions. [2021-12-22 12:15:36,139 INFO L78 Accepts]: Start accepts. Automaton has 1556 states and 2174 transitions. Word has length 110 [2021-12-22 12:15:36,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 12:15:36,140 INFO L470 AbstractCegarLoop]: Abstraction has 1556 states and 2174 transitions. [2021-12-22 12:15:36,140 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:15:36,140 INFO L276 IsEmpty]: Start isEmpty. Operand 1556 states and 2174 transitions. [2021-12-22 12:15:36,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-12-22 12:15:36,141 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 12:15:36,141 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 12:15:36,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-12-22 12:15:36,142 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-12-22 12:15:36,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 12:15:36,142 INFO L85 PathProgramCache]: Analyzing trace with hash -569205108, now seen corresponding path program 1 times [2021-12-22 12:15:36,142 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 12:15:36,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994646238] [2021-12-22 12:15:36,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 12:15:36,143 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 12:15:36,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:15:36,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 12:15:36,232 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 12:15:36,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994646238] [2021-12-22 12:15:36,232 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994646238] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 12:15:36,232 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 12:15:36,232 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-22 12:15:36,232 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203766906] [2021-12-22 12:15:36,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 12:15:36,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-22 12:15:36,233 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 12:15:36,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-22 12:15:36,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-22 12:15:36,234 INFO L87 Difference]: Start difference. First operand 1556 states and 2174 transitions. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)